# HG changeset patch
# User Christian Brabandt <cb@256bit.org>
# Date 1472592609 -7200
# Node ID 43efa4f5a8ea9fadfd33f6c34faab5b338b53e2c
# Parent  a62862410ca1cf6481855df36154165e4d847858
commit https://github.com/vim/vim/commit/89bcfda6834aba724d12554a34b9ed49f5789fd5
Author: Bram Moolenaar <Bram@vim.org>
Date:   Tue Aug 30 23:26:57 2016 +0200

    Updated runtime files.  Remove version checks for Vim older than 6.0.

diff --git a/runtime/autoload/rubycomplete.vim b/runtime/autoload/rubycomplete.vim
--- a/runtime/autoload/rubycomplete.vim
+++ b/runtime/autoload/rubycomplete.vim
@@ -93,7 +93,7 @@ function! s:GetBufferRubyEntity( name, t
 
     let stopline = 1
 
-    let crex = '^\s*\<' . a:type . '\>\s*\<' . a:name . '\>\s*\(<\s*.*\s*\)\?'
+    let crex = '^\s*\<' . a:type . '\>\s*\<' . escape(a:name, '*') . '\>\s*\(<\s*.*\s*\)\?'
     let [lnum,lcol] = searchpos( crex, 'w' )
     "let [lnum,lcol] = searchpairpos( crex . '\zs', '', '\(end\|}\)', 'w' )
 
@@ -149,7 +149,7 @@ function! s:GetRubyVarType(v)
     let ctors = ctors.'\)'
 
     let fstr = '=\s*\([^ \t]\+.' . ctors .'\>\|[\[{"''/]\|%[xwQqr][(\[{@]\|[A-Za-z0-9@:\-()\.]\+...\?\|lambda\|&\)'
-    let sstr = ''.a:v.'\>\s*[+\-*/]*'.fstr
+    let sstr = ''.escape(a:v, '*').'\>\s*[+\-*/]*'.fstr
     let [lnum,lcol] = searchpos(sstr,'nb',stopline)
     if lnum != 0 && lcol != 0
         let str = matchstr(getline(lnum),fstr,lcol)
@@ -266,6 +266,28 @@ class VimRubyCompletion
     end
   end
 
+  def load_gems
+    fpath = VIM::evaluate("get(g:, 'rubycomplete_gemfile_path', 'Gemfile')")
+    return unless File.file?(fpath) && File.readable?(fpath)
+    want_bundler = VIM::evaluate("get(g:, 'rubycomplete_use_bundler')")
+    parse_file = !want_bundler
+    begin
+      require 'bundler'
+      Bundler.setup
+      Bundler.require
+    rescue Exception
+      parse_file = true
+    end
+    if parse_file
+      File.new(fpath).each_line do |line|
+        begin
+          require $1 if /\s*gem\s*['"]([^'"]+)/.match(line)
+        rescue Exception
+        end
+      end
+    end
+  end
+
   def load_buffer_class(name)
     dprint "load_buffer_class(%s) START" % name
     classdef = get_buffer_entity(name, 's:GetBufferRubyClass("%s")')
@@ -588,6 +610,10 @@ class VimRubyCompletion
       load_rails
     end
 
+    want_gems = VIM::evaluate("get(g:, 'rubycomplete_load_gemfile')")
+    load_gems unless want_gems.to_i.zero?
+    
+
     input = VIM::Buffer.current.line
     cpos = VIM::Window.current.cursor[1] - 1
     input = input[0..cpos]
@@ -678,7 +704,9 @@ class VimRubyCompletion
         cv = eval("self.class.constants")
         vartype = get_var_type( receiver )
         dprint "vartype: %s" % vartype
-        if vartype != ''
+
+        invalid_vartype = ['', "gets"]
+        if !invalid_vartype.include?(vartype)
           load_buffer_class( vartype )
 
           begin
@@ -706,7 +734,7 @@ class VimRubyCompletion
             methods.concat m.instance_methods(false)
           }
         end
-        variables += add_rails_columns( "#{vartype}" ) if vartype && vartype.length > 0
+        variables += add_rails_columns( "#{vartype}" ) if vartype && !invalid_vartype.include?(vartype)
 
       when /^\(?\s*[A-Za-z0-9:^@.%\/+*\(\)]+\.\.\.?[A-Za-z0-9:^@.%\/+*\(\)]+\s*\)?\.([^.]*)/
         message = $1
diff --git a/runtime/compiler/cucumber.vim b/runtime/compiler/cucumber.vim
--- a/runtime/compiler/cucumber.vim
+++ b/runtime/compiler/cucumber.vim
@@ -1,7 +1,7 @@
 " Vim compiler file
 " Compiler:	Cucumber
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2010 Aug 09
+" Last Change:	2016 Aug 29
 
 if exists("current_compiler")
   finish
@@ -19,7 +19,7 @@ CompilerSet makeprg=cucumber
 
 CompilerSet errorformat=
       \%W%m\ (Cucumber::Undefined),
-      \%E%m\ (%.%#),
+      \%E%m\ (%\\S%#),
       \%Z%f:%l,
       \%Z%f:%l:%.%#
 
diff --git a/runtime/compiler/haml.vim b/runtime/compiler/haml.vim
--- a/runtime/compiler/haml.vim
+++ b/runtime/compiler/haml.vim
@@ -1,7 +1,7 @@
 " Vim compiler file
 " Compiler:	Haml
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists("current_compiler")
   finish
@@ -15,7 +15,7 @@ endif
 let s:cpo_save = &cpo
 set cpo-=C
 
-CompilerSet makeprg=haml\ -c
+CompilerSet makeprg=haml
 
 CompilerSet errorformat=
       \Haml\ %trror\ on\ line\ %l:\ %m,
diff --git a/runtime/compiler/rake.vim b/runtime/compiler/rake.vim
--- a/runtime/compiler/rake.vim
+++ b/runtime/compiler/rake.vim
@@ -27,7 +27,11 @@ CompilerSet errorformat=
       \%\\s%#[%f:%l:\ %#%m,
       \%\\s%#%f:%l:\ %#%m,
       \%\\s%#%f:%l:,
-      \%m\ [%f:%l]:
+      \%m\ [%f:%l]:,
+      \%+Erake\ aborted!,
+      \%+EDon't\ know\ how\ to\ build\ task\ %.%#,
+      \%+Einvalid\ option:%.%#,
+      \%+Irake\ %\\S%\\+%\\s%\\+#\ %.%#
 
 let &cpo = s:cpo_save
 unlet s:cpo_save
diff --git a/runtime/compiler/rspec.vim b/runtime/compiler/rspec.vim
--- a/runtime/compiler/rspec.vim
+++ b/runtime/compiler/rspec.vim
@@ -22,9 +22,10 @@ CompilerSet errorformat=
     \%f:%l:\ %tarning:\ %m,
     \%E%.%#:in\ `load':\ %f:%l:%m,
     \%E%f:%l:in\ `%*[^']':\ %m,
-    \%-Z\ \ \ \ \ \#\ %f:%l:%.%#,
+    \%-Z\ \ \ \ \ %\\+\#\ %f:%l:%.%#,
     \%E\ \ %\\d%\\+)%.%#,
     \%C\ \ \ \ \ %m,
+    \%C%\\s%#,
     \%-G%.%#
 
 let &cpo = s:cpo_save
diff --git a/runtime/compiler/rubyunit.vim b/runtime/compiler/rubyunit.vim
--- a/runtime/compiler/rubyunit.vim
+++ b/runtime/compiler/rubyunit.vim
@@ -17,6 +17,8 @@ let s:cpo_save = &cpo
 set cpo-=C
 
 CompilerSet makeprg=testrb
+" CompilerSet makeprg=ruby\ -Itest
+" CompilerSet makeprg=m
 
 CompilerSet errorformat=\%W\ %\\+%\\d%\\+)\ Failure:,
 			\%C%m\ [%f:%l]:,
diff --git a/runtime/compiler/sass.vim b/runtime/compiler/sass.vim
--- a/runtime/compiler/sass.vim
+++ b/runtime/compiler/sass.vim
@@ -1,7 +1,7 @@
 " Vim compiler file
 " Compiler:	Sass
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists("current_compiler")
   finish
@@ -15,7 +15,7 @@ endif
 let s:cpo_save = &cpo
 set cpo-=C
 
-CompilerSet makeprg=sass\ -c
+CompilerSet makeprg=sass
 
 CompilerSet errorformat=
       \%f:%l:%m\ (Sass::Syntax%trror),
diff --git a/runtime/defaults.vim b/runtime/defaults.vim
--- a/runtime/defaults.vim
+++ b/runtime/defaults.vim
@@ -31,7 +31,8 @@ set ttimeoutlen=100	" wait up to 100ms a
 " Show @@@ in the last line if it is truncated.
 set display=truncate
 
-" Show a few lines of context around the cursor.
+" Show a few lines of context around the cursor.  Note that this makes the
+" text scroll if you mouse-click near the start or end of the window.
 set scrolloff=5
 
 " Do incremental searching when it's possible to timeout.
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1,4 +1,4 @@
-*eval.txt*	For Vim version 7.4.  Last change: 2016 Aug 29
+*eval.txt*	For Vim version 7.4.  Last change: 2016 Aug 30
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -643,13 +643,17 @@ 2. Expression syntax					*expression-syn
 
 Expression syntax summary, from least to most significant:
 
-|expr1|   expr2 ? expr1 : expr1	if-then-else
-
-|expr2|	expr3 || expr3 ..	logical OR
-
-|expr3|	expr4 && expr4 ..	logical AND
-
-|expr4|	expr5 == expr5		equal
+|expr1|   expr2
+	expr2 ? expr1 : expr1	if-then-else
+
+|expr2|	expr3
+	expr3 || expr3 ..	logical OR
+
+|expr3|	expr4
+	expr4 && expr4 ..	logical AND
+
+|expr4|	expr5
+	expr5 == expr5		equal
 	expr5 != expr5		not equal
 	expr5 >	 expr5		greater than
 	expr5 >= expr5		greater than or equal
@@ -666,24 +670,28 @@ Expression syntax summary, from least to
 	expr5 is expr5		same |List| instance
 	expr5 isnot expr5	different |List| instance
 
-|expr5|	expr6 +	 expr6 ..	number addition or list concatenation
+|expr5|	expr6
+	expr6 +	 expr6 ..	number addition or list concatenation
 	expr6 -	 expr6 ..	number subtraction
 	expr6 .	 expr6 ..	string concatenation
 
-|expr6|	expr7 *	 expr7 ..	number multiplication
+|expr6|	expr7
+	expr7 *	 expr7 ..	number multiplication
 	expr7 /	 expr7 ..	number division
 	expr7 %	 expr7 ..	number modulo
 
-|expr7|	! expr7			logical NOT
+|expr7|	expr8
+	! expr7			logical NOT
 	- expr7			unary minus
 	+ expr7			unary plus
 
-|expr8|	expr8[expr1]		byte of a String or item of a |List|
+|expr8|	expr9
+	expr8[expr1]		byte of a String or item of a |List|
 	expr8[expr1 : expr1]	substring of a String or sublist of a |List|
 	expr8.name		entry in a |Dictionary|
 	expr8(expr1, ...)	function call with |Funcref| variable
 
-|expr9| number			number constant
+|expr9|   number		number constant
 	"string"		string constant, backslash is special
 	'string'		string constant, ' is doubled
 	[expr1, ...]		|List|
diff --git a/runtime/doc/os_win32.txt b/runtime/doc/os_win32.txt
--- a/runtime/doc/os_win32.txt
+++ b/runtime/doc/os_win32.txt
@@ -1,4 +1,4 @@
-*os_win32.txt*  For Vim version 7.4.  Last change: 2016 Mar 05
+*os_win32.txt*  For Vim version 7.4.  Last change: 2016 Aug 28
 
 
 		  VIM REFERENCE MANUAL    by George Reilly
@@ -144,29 +144,8 @@ the console.
 5. Running under Windows 3.1				*win32-win3.1*
 
 						*win32s* *windows-3.1*
-There is a special version of Gvim that runs under Windows 3.1 and 3.11.  You
-need the gvim.exe that was compiled with Visual C++ 4.1.
-
-To run the Win32 version under Windows 3.1, you need to install Win32s.  You
-might have it already from another Win32 application which you have installed.
-If Vim doesn't seem to be running properly, get the latest version: 1.30c.
-You can find it at:
-
-	http://support.microsoft.com/download/support/mslfiles/pw1118.exe
-
-(Microsoft moved it again, we don't know where it is now :-( ).
-
-The reason for having two versions of gvim.exe is that the Win32s version was
-compiled with VC++ 4.1.  This is the last version of VC++ that supports Win32s
-programs.  VC++ 5.0 is better, so that one was used for the Win32 version.
-Apart from that, there is no difference between the programs.  If you are in a
-mixed environment, you can use the gvim.exe for Win32s on both.
-
-The Win32s version works the same way as the Win32 version under 95/NT.  When
-running under Win32s the following differences apply:
-- You cannot use long file names, because Windows 3.1 doesn't support them!
-- When executing an external command, it doesn't return an exit code.  After
-  doing ":make" you have to do ":cn" yourself.
+There was a special version of Gvim that runs under Windows 3.1 and 3.11.
+Support was removed in patch 7.4.1363.
 
 ==============================================================================
 6. Win32 mini FAQ					*win32-faq*
diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
--- a/runtime/doc/todo.txt
+++ b/runtime/doc/todo.txt
@@ -1,4 +1,4 @@
-*todo.txt*      For Vim version 7.4.  Last change: 2016 Aug 27
+*todo.txt*      For Vim version 7.4.  Last change: 2016 Aug 30
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -37,6 +37,25 @@ not be repeated below, unless there is e
 Make ":filter" work with more commands.
 Search for: msg_putchar('\n')
 
+Try building with $SHADOWDIR
+
+Test_sign_completion() fails on MS-Windows (console and GUI)  Completion
+doesn't have both tb_paste.xpm and tb_print.xpm but "tb_p".  Different default
+options?
+
+Test_nb_basic() fails on MS-Windows GUI. line 12: Expected 2 but got 1.
+line 13: Expected 20 but got 1.
+
+Figure out building with Ruby on MS-Windows.
+
+:cexpr doesn't trigger QuickFixCmdPost. (Mathias Stearn, 2016 Aug 29, #1021)
+Needs documentation. (Yegappan)
+
+Patch to convert test_marks to new style. (Yegappan, 2016 Aug 28, 2 msg)
+
+Patch to make it possible to define a test but skip it, by throwing an
+exception. (Christian Brabandt, 2016 Aug 30)
+
 +channel:
 - Implement |job-term| ?
 - Channel test fails with Motif.  Sometimes kills the X11 server.
@@ -186,6 +205,9 @@ Ramel Eshed: system() is much slower tha
 Patch for Python: #622. (Roland Puntaier, 2016 Feb 2)
 What does it change?
 
+Patch to make gd and gD work better for non-K&R code and with comments.
+(Anton Lindqvist, 2016 Aug 29)
+
 When generating the Unicode tables with runtime/tools/unicode.vim the
 emoji_width table has only one entry.
 
diff --git a/runtime/doc/version8.txt b/runtime/doc/version8.txt
--- a/runtime/doc/version8.txt
+++ b/runtime/doc/version8.txt
@@ -211,7 +211,7 @@ Ex commands: ~
 |:cfdo|			execute command in each file in error list
 |:chistory|		display quickfix list stack
 |:clearjumps|		clear the jump list
-:filter			only output lines that (do not) match a pattern
+|:filter|		only output lines that (do not) match a pattern
 |:helpclose|		close one help window
 |:lbottom|		scroll to the bottom of the location window
 |:ldo|			execute command in valid location list entries
@@ -12742,8 +12742,8 @@ Files:      src/fileio.c, src/window.c, 
             src/testdir/test_autocmd.vim, runtime/doc/autocmd.txt
 
 Patch 7.4.2078
-Problem:    Running checks in po diretory fails.
-Solution:   Add colors used in syntax.c to the builtiin color table.
+Problem:    Running checks in po directory fails.
+Solution:   Add colors used in syntax.c to the builtin color table.
 Files:      src/term.c
 
 Patch 7.4.2079
diff --git a/runtime/ftplugin/cucumber.vim b/runtime/ftplugin/cucumber.vim
--- a/runtime/ftplugin/cucumber.vim
+++ b/runtime/ftplugin/cucumber.vim
@@ -1,7 +1,7 @@
 " Vim filetype plugin
 " Language:	Cucumber
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 Jun 01
+" Last Change:	2016 Aug 29
 
 " Only do this when not done yet for this buffer
 if (exists("b:did_ftplugin"))
@@ -19,27 +19,23 @@ setlocal omnifunc=CucumberComplete
 let b:undo_ftplugin = "setl fo< com< cms< ofu<"
 
 let b:cucumber_root = expand('%:p:h:s?.*[\/]\%(features\|stories\)\zs[\/].*??')
+if !exists("b:cucumber_steps_glob")
+  let b:cucumber_steps_glob = b:cucumber_root.'/**/*.rb'
+endif
 
 if !exists("g:no_plugin_maps") && !exists("g:no_cucumber_maps")
-  nnoremap <silent><buffer> <C-]>       :<C-U>exe <SID>jump('edit',v:count)<CR>
-  nnoremap <silent><buffer> [<C-D>      :<C-U>exe <SID>jump('edit',v:count)<CR>
-  nnoremap <silent><buffer> ]<C-D>      :<C-U>exe <SID>jump('edit',v:count)<CR>
-  nnoremap <silent><buffer> <C-W>]      :<C-U>exe <SID>jump('split',v:count)<CR>
-  nnoremap <silent><buffer> <C-W><C-]>  :<C-U>exe <SID>jump('split',v:count)<CR>
-  nnoremap <silent><buffer> <C-W>d      :<C-U>exe <SID>jump('split',v:count)<CR>
-  nnoremap <silent><buffer> <C-W><C-D>  :<C-U>exe <SID>jump('split',v:count)<CR>
-  nnoremap <silent><buffer> <C-W>}      :<C-U>exe <SID>jump('pedit',v:count)<CR>
-  nnoremap <silent><buffer> [d          :<C-U>exe <SID>jump('pedit',v:count)<CR>
-  nnoremap <silent><buffer> ]d          :<C-U>exe <SID>jump('pedit',v:count)<CR>
+  cnoremap <SID>foldopen <Bar>if &foldopen =~# 'tag'<Bar>exe 'norm! zv'<Bar>endif
+  nnoremap <silent> <script> <buffer> [<C-D>      :<C-U>exe <SID>jump('edit',v:count)<SID>foldopen<CR>
+  nnoremap <silent> <script> <buffer> ]<C-D>      :<C-U>exe <SID>jump('edit',v:count)<SID>foldopen<CR>
+  nnoremap <silent> <script> <buffer> <C-W>d      :<C-U>exe <SID>jump('split',v:count)<SID>foldopen<CR>
+  nnoremap <silent> <script> <buffer> <C-W><C-D>  :<C-U>exe <SID>jump('split',v:count)<SID>foldopen<CR>
+  nnoremap <silent> <script> <buffer> [d          :<C-U>exe <SID>jump('pedit',v:count)<CR>
+  nnoremap <silent> <script> <buffer> ]d          :<C-U>exe <SID>jump('pedit',v:count)<CR>
   let b:undo_ftplugin .=
-        \ "|sil! nunmap <buffer> <C-]>" .
         \ "|sil! nunmap <buffer> [<C-D>" .
         \ "|sil! nunmap <buffer> ]<C-D>" .
-        \ "|sil! nunmap <buffer> <C-W>]" .
-        \ "|sil! nunmap <buffer> <C-W><C-]>" .
         \ "|sil! nunmap <buffer> <C-W>d" .
         \ "|sil! nunmap <buffer> <C-W><C-D>" .
-        \ "|sil! nunmap <buffer> <C-W>}" .
         \ "|sil! nunmap <buffer> [d" .
         \ "|sil! nunmap <buffer> ]d"
 endif
@@ -59,7 +55,7 @@ endfunction
 function! s:allsteps()
   let step_pattern = '\C^\s*\K\k*\>\s*(\=\s*\zs\S.\{-\}\ze\s*)\=\s*\%(do\|{\)\s*\%(|[^|]*|\s*\)\=\%($\|#\)'
   let steps = []
-  for file in split(glob(b:cucumber_root.'/**/*.rb'),"\n")
+  for file in split(glob(b:cucumber_steps_glob),"\n")
     let lines = readfile(file)
     let num = 0
     for line in lines
diff --git a/runtime/ftplugin/eruby.vim b/runtime/ftplugin/eruby.vim
--- a/runtime/ftplugin/eruby.vim
+++ b/runtime/ftplugin/eruby.vim
@@ -27,7 +27,7 @@ elseif !exists("b:eruby_subtype")
   let s:lines = getline(1)."\n".getline(2)."\n".getline(3)."\n".getline(4)."\n".getline(5)."\n".getline("$")
   let b:eruby_subtype = matchstr(s:lines,'eruby_subtype=\zs\w\+')
   if b:eruby_subtype == ''
-    let b:eruby_subtype = matchstr(substitute(expand("%:t"),'\c\%(\.erb\|\.eruby\|\.erubis\)\+$','',''),'\.\zs\w\+$')
+    let b:eruby_subtype = matchstr(substitute(expand("%:t"),'\c\%(\.erb\|\.eruby\|\.erubis\)\+$','',''),'\.\zs\w\+\%(\ze+\w\+\)\=$')
   endif
   if b:eruby_subtype == 'rhtml'
     let b:eruby_subtype = 'html'
diff --git a/runtime/ftplugin/git.vim b/runtime/ftplugin/git.vim
--- a/runtime/ftplugin/git.vim
+++ b/runtime/ftplugin/git.vim
@@ -1,7 +1,7 @@
 " Vim filetype plugin
 " Language:	generic git output
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 " Only do this when not done yet for this buffer
 if (exists("b:did_ftplugin"))
@@ -12,6 +12,8 @@ let b:did_ftplugin = 1
 if !exists('b:git_dir')
   if expand('%:p') =~# '[\/]\.git[\/]modules[\/]'
     " Stay out of the way
+  elseif expand('%:p') =~# '[\/]\.git[\/]worktrees'
+    let b:git_dir = matchstr(expand('%:p'),'.*\.git[\/]worktrees[\/][^\/]\+\>')
   elseif expand('%:p') =~# '\.git\>'
     let b:git_dir = matchstr(expand('%:p'),'.*\.git\>')
   elseif $GIT_DIR != ''
diff --git a/runtime/ftplugin/gitcommit.vim b/runtime/ftplugin/gitcommit.vim
--- a/runtime/ftplugin/gitcommit.vim
+++ b/runtime/ftplugin/gitcommit.vim
@@ -1,7 +1,7 @@
 " Vim filetype plugin
 " Language:	git commit file
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 " Only do this when not done yet for this buffer
 if (exists("b:did_ftplugin"))
@@ -11,15 +11,10 @@ endif
 runtime! ftplugin/git.vim
 let b:did_ftplugin = 1
 
-setlocal nomodeline tabstop=8 formatoptions-=croq formatoptions+=tl
-
-let b:undo_ftplugin = 'setl modeline< tabstop< formatoptions<'
-
-if &textwidth == 0
-  " make sure that log messages play nice with git-log on standard terminals
-  setlocal textwidth=72
-  let b:undo_ftplugin .= "|setl tw<"
-endif
+setlocal comments=:# commentstring=#\ %s
+setlocal nomodeline tabstop=8 formatoptions+=tl textwidth=72
+setlocal formatoptions-=c formatoptions-=r formatoptions-=o formatoptions-=q
+let b:undo_ftplugin = 'setl modeline< tabstop< formatoptions< tw< com< cms<'
 
 if exists("g:no_gitcommit_commands") || v:version < 700
   finish
@@ -31,6 +26,8 @@ endif
 
 command! -bang -bar -buffer -complete=custom,s:diffcomplete -nargs=* DiffGitCached :call s:gitdiffcached(<bang>0,b:git_dir,<f-args>)
 
+let b:undo_ftplugin = b:undo_ftplugin . "|delc DiffGitCached"
+
 function! s:diffcomplete(A,L,P)
   let args = ""
   if a:P <= match(a:L." -- "," -- ")+3
diff --git a/runtime/ftplugin/gitrebase.vim b/runtime/ftplugin/gitrebase.vim
--- a/runtime/ftplugin/gitrebase.vim
+++ b/runtime/ftplugin/gitrebase.vim
@@ -1,7 +1,7 @@
 " Vim filetype plugin
 " Language:	git rebase --interactive
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2010 May 21
+" Last Change:	2016 Aug 29
 
 " Only do this when not done yet for this buffer
 if (exists("b:did_ftplugin"))
@@ -12,10 +12,11 @@ runtime! ftplugin/git.vim
 let b:did_ftplugin = 1
 
 setlocal comments=:# commentstring=#\ %s formatoptions-=t
+setlocal nomodeline
 if !exists("b:undo_ftplugin")
   let b:undo_ftplugin = ""
 endif
-let b:undo_ftplugin = b:undo_ftplugin."|setl com< cms< fo<"
+let b:undo_ftplugin = b:undo_ftplugin."|setl com< cms< fo< ml<"
 
 function! s:choose(word)
   s/^\(\w\+\>\)\=\(\s*\)\ze\x\{4,40\}\>/\=(strlen(submatch(1)) == 1 ? a:word[0] : a:word) . substitute(submatch(2),'^$',' ','')/e
diff --git a/runtime/ftplugin/haml.vim b/runtime/ftplugin/haml.vim
--- a/runtime/ftplugin/haml.vim
+++ b/runtime/ftplugin/haml.vim
@@ -1,7 +1,7 @@
 " Vim filetype plugin
 " Language:	Haml
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 Jun 01
+" Last Change:	2016 Aug 29
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
diff --git a/runtime/ftplugin/markdown.vim b/runtime/ftplugin/markdown.vim
--- a/runtime/ftplugin/markdown.vim
+++ b/runtime/ftplugin/markdown.vim
@@ -1,7 +1,7 @@
 " Vim filetype plugin
 " Language:		Markdown
 " Maintainer:		Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:		2013 May 30
+" Last Change:		2016 Aug 29
 
 if exists("b:did_ftplugin")
   finish
@@ -11,7 +11,7 @@ runtime! ftplugin/html.vim ftplugin/html
 
 setlocal comments=fb:*,fb:-,fb:+,n:> commentstring=>\ %s
 setlocal formatoptions+=tcqln formatoptions-=r formatoptions-=o
-setlocal formatlistpat=^\\s*\\d\\+\\.\\s\\+\\\|^[-*+]\\s\\+
+setlocal formatlistpat=^\\s*\\d\\+\\.\\s\\+\\\|^[-*+]\\s\\+\\\|^\\[^\\ze[^\\]]\\+\\]:
 
 if exists('b:undo_ftplugin')
   let b:undo_ftplugin .= "|setl cms< com< fo< flp<"
@@ -19,4 +19,32 @@ else
   let b:undo_ftplugin = "setl cms< com< fo< flp<"
 endif
 
+function! MarkdownFold()
+  let line = getline(v:lnum)
+
+  " Regular headers
+  let depth = match(line, '\(^#\+\)\@<=\( .*$\)\@=')
+  if depth > 0
+    return ">" . depth
+  endif
+
+  " Setext style headings
+  let nextline = getline(v:lnum + 1)
+  if (line =~ '^.\+$') && (nextline =~ '^=\+$')
+    return ">1"
+  endif
+
+  if (line =~ '^.\+$') && (nextline =~ '^-\+$')
+    return ">2"
+  endif
+
+  return "="
+endfunction
+
+if has("folding") && exists("g:markdown_folding")
+  setlocal foldexpr=MarkdownFold()
+  setlocal foldmethod=expr
+  let b:undo_ftplugin .= " foldexpr< foldmethod<"
+endif
+
 " vim:set sw=2:
diff --git a/runtime/ftplugin/ruby.vim b/runtime/ftplugin/ruby.vim
--- a/runtime/ftplugin/ruby.vim
+++ b/runtime/ftplugin/ruby.vim
@@ -28,12 +28,13 @@ if exists("loaded_matchit") && !exists("
 	\ ':' .
 	\ '\<\%(else\|elsif\|ensure\|when\|rescue\|break\|redo\|next\|retry\)\>' .
 	\ ':' .
-	\ '\<end\>' .
+        \ '\%(^\|[^.\:@$]\)\@<=\<end\:\@!\>' .
 	\ ',{:},\[:\],(:)'
 
   let b:match_skip =
 	\ "synIDattr(synID(line('.'),col('.'),0),'name') =~ '" .
 	\ "\\<ruby\\%(String\\|StringDelimiter\\|ASCIICode\\|Escape\\|" .
+        \ "Regexp\\|RegexpDelimiter\\|" .
 	\ "Interpolation\\|NoInterpolation\\|Comment\\|Documentation\\|" .
 	\ "ConditionalModifier\\|RepeatModifier\\|OptionalDo\\|" .
 	\ "Function\\|BlockArgument\\|KeywordAsMethod\\|ClassVariable\\|" .
@@ -43,7 +44,7 @@ endif
 setlocal formatoptions-=t formatoptions+=croql
 
 setlocal include=^\\s*\\<\\(load\\>\\\|require\\>\\\|autoload\\s*:\\=[\"']\\=\\h\\w*[\"']\\=,\\)
-setlocal includeexpr=substitute(substitute(v:fname,'::','/','g'),'$','.rb','')
+setlocal includeexpr=substitute(substitute(v:fname,'::','/','g'),'\%(\.rb\)\=$','.rb','')
 setlocal suffixesadd=.rb
 
 if exists("&ofu") && has("ruby")
@@ -66,32 +67,32 @@ if !exists('g:ruby_version_paths')
   let g:ruby_version_paths = {}
 endif
 
-function! s:query_path(root)
+function! s:query_path(root) abort
   let code = "print $:.join %q{,}"
-  if &shell =~# 'sh' && $PATH !~# '\s'
-    let prefix = 'env PATH='.$PATH.' '
+  if &shell =~# 'sh'
+    let prefix = 'env PATH='.shellescape($PATH).' '
   else
     let prefix = ''
   endif
   if &shellxquote == "'"
-    let path_check = prefix.'ruby -e "' . code . '"'
+    let path_check = prefix.'ruby --disable-gems -e "' . code . '"'
   else
-    let path_check = prefix."ruby -e '" . code . "'"
+    let path_check = prefix."ruby --disable-gems -e '" . code . "'"
   endif
 
   let cd = haslocaldir() ? 'lcd' : 'cd'
-  let cwd = getcwd()
+  let cwd = fnameescape(getcwd())
   try
     exe cd fnameescape(a:root)
     let path = split(system(path_check),',')
-    exe cd fnameescape(cwd)
+    exe cd cwd
     return path
   finally
-    exe cd fnameescape(cwd)
+    exe cd cwd
   endtry
 endfunction
 
-function! s:build_path(path)
+function! s:build_path(path) abort
   let path = join(map(copy(a:path), 'v:val ==# "." ? "" : v:val'), ',')
   if &g:path !~# '\v^\.%(,/%(usr|emx)/include)=,,$'
     let path = substitute(&g:path,',,$',',','') . ',' . path
@@ -101,7 +102,7 @@ endfunction
 
 if !exists('b:ruby_version') && !exists('g:ruby_path') && isdirectory(expand('%:p:h'))
   let s:version_file = findfile('.ruby-version', '.;')
-  if !empty(s:version_file)
+  if !empty(s:version_file) && filereadable(s:version_file)
     let b:ruby_version = get(readfile(s:version_file, '', 1), '')
     if !has_key(g:ruby_version_paths, b:ruby_version)
       let g:ruby_version_paths[b:ruby_version] = s:query_path(fnamemodify(s:version_file, ':p:h'))
@@ -135,7 +136,7 @@ if exists('s:ruby_paths') && stridx(&l:t
   let &l:tags = &tags . ',' . join(map(copy(s:ruby_paths),'v:val."/tags"'),',')
 endif
 
-if has("gui_win32") && !exists("b:browsefilter")
+if (has("gui_win32") || has("gui_gtk")) && !exists("b:browsefilter")
   let b:browsefilter = "Ruby Source Files (*.rb)\t*.rb\n" .
                      \ "All Files (*.*)\t*.*\n"
 endif
@@ -145,7 +146,22 @@ let b:undo_ftplugin = "setl fo< inc< ine
       \."| if exists('&ofu') && has('ruby') | setl ofu< | endif"
       \."| if has('balloon_eval') && exists('+bexpr') | setl bexpr< | endif"
 
+function! s:map(mode, flags, map) abort
+  let from = matchstr(a:map, '\S\+')
+  if empty(mapcheck(from, a:mode))
+    exe a:mode.'map' '<buffer>'.(a:0 ? a:1 : '') a:map
+    let b:undo_ftplugin .= '|sil! '.a:mode.'unmap <buffer> '.from
+  endif
+endfunction
+
+cmap <buffer><script><expr> <Plug><cword> substitute(RubyCursorIdentifier(),'^$',"\022\027",'')
+cmap <buffer><script><expr> <Plug><cfile> substitute(RubyCursorFile(),'^$',"\022\006",'')
+let b:undo_ftplugin .= "| sil! cunmap <buffer> <Plug><cword>| sil! cunmap <buffer> <Plug><cfile>"
+
 if !exists("g:no_plugin_maps") && !exists("g:no_ruby_maps")
+  nmap <buffer><script> <SID>:  :<C-U>
+  nmap <buffer><script> <SID>c: :<C-U><C-R>=v:count ? v:count : ''<CR>
+
   nnoremap <silent> <buffer> [m :<C-U>call <SID>searchsyn('\<def\>','rubyDefine','b','n')<CR>
   nnoremap <silent> <buffer> ]m :<C-U>call <SID>searchsyn('\<def\>','rubyDefine','','n')<CR>
   nnoremap <silent> <buffer> [M :<C-U>call <SID>searchsyn('\<end\>','rubyDefine','b','n')<CR>
@@ -168,7 +184,7 @@ if !exists("g:no_plugin_maps") && !exist
         \."| sil! exe 'unmap <buffer> [[' | sil! exe 'unmap <buffer> ]]' | sil! exe 'unmap <buffer> []' | sil! exe 'unmap <buffer> ]['"
         \."| sil! exe 'unmap <buffer> [m' | sil! exe 'unmap <buffer> ]m' | sil! exe 'unmap <buffer> [M' | sil! exe 'unmap <buffer> ]M'"
 
-  if maparg('im','n') == ''
+  if maparg('im','x') == '' && maparg('im','o') == '' && maparg('am','x') == '' && maparg('am','o') == ''
     onoremap <silent> <buffer> im :<C-U>call <SID>wrap_i('[m',']M')<CR>
     onoremap <silent> <buffer> am :<C-U>call <SID>wrap_a('[m',']M')<CR>
     xnoremap <silent> <buffer> im :<C-U>call <SID>wrap_i('[m',']M')<CR>
@@ -178,7 +194,7 @@ if !exists("g:no_plugin_maps") && !exist
           \."| sil! exe 'xunmap <buffer> im' | sil! exe 'xunmap <buffer> am'"
   endif
 
-  if maparg('iM','n') == ''
+  if maparg('iM','x') == '' && maparg('iM','o') == '' && maparg('aM','x') == '' && maparg('aM','o') == ''
     onoremap <silent> <buffer> iM :<C-U>call <SID>wrap_i('[[','][')<CR>
     onoremap <silent> <buffer> aM :<C-U>call <SID>wrap_a('[[','][')<CR>
     xnoremap <silent> <buffer> iM :<C-U>call <SID>wrap_i('[[','][')<CR>
@@ -188,33 +204,24 @@ if !exists("g:no_plugin_maps") && !exist
           \."| sil! exe 'xunmap <buffer> iM' | sil! exe 'xunmap <buffer> aM'"
   endif
 
-  if maparg("\<C-]>",'n') == ''
-    nnoremap <silent> <buffer> <C-]>       :<C-U>exe  v:count1."tag <C-R>=RubyCursorIdentifier()<CR>"<CR>
-    nnoremap <silent> <buffer> g<C-]>      :<C-U>exe         "tjump <C-R>=RubyCursorIdentifier()<CR>"<CR>
-    nnoremap <silent> <buffer> g]          :<C-U>exe       "tselect <C-R>=RubyCursorIdentifier()<CR>"<CR>
-    nnoremap <silent> <buffer> <C-W>]      :<C-U>exe v:count1."stag <C-R>=RubyCursorIdentifier()<CR>"<CR>
-    nnoremap <silent> <buffer> <C-W><C-]>  :<C-U>exe v:count1."stag <C-R>=RubyCursorIdentifier()<CR>"<CR>
-    nnoremap <silent> <buffer> <C-W>g<C-]> :<C-U>exe        "stjump <C-R>=RubyCursorIdentifier()<CR>"<CR>
-    nnoremap <silent> <buffer> <C-W>g]     :<C-U>exe      "stselect <C-R>=RubyCursorIdentifier()<CR>"<CR>
-    nnoremap <silent> <buffer> <C-W>}      :<C-U>exe          "ptag <C-R>=RubyCursorIdentifier()<CR>"<CR>
-    nnoremap <silent> <buffer> <C-W>g}     :<C-U>exe        "ptjump <C-R>=RubyCursorIdentifier()<CR>"<CR>
-    let b:undo_ftplugin = b:undo_ftplugin
-          \."| sil! exe 'nunmap <buffer> <C-]>'| sil! exe 'nunmap <buffer> g<C-]>'| sil! exe 'nunmap <buffer> g]'"
-          \."| sil! exe 'nunmap <buffer> <C-W>]'| sil! exe 'nunmap <buffer> <C-W><C-]>'"
-          \."| sil! exe 'nunmap <buffer> <C-W>g<C-]>'| sil! exe 'nunmap <buffer> <C-W>g]'"
-          \."| sil! exe 'nunmap <buffer> <C-W>}'| sil! exe 'nunmap <buffer> <C-W>g}'"
-  endif
+  call s:map('c', '', '<C-R><C-W> <Plug><cword>')
+  call s:map('c', '', '<C-R><C-F> <Plug><cfile>')
 
-  if maparg("gf",'n') == ''
-    " By using findfile() rather than gf's normal behavior, we prevent
-    " erroneously editing a directory.
-    nnoremap <silent> <buffer> gf         :<C-U>exe <SID>gf(v:count1,"gf",'edit')<CR>
-    nnoremap <silent> <buffer> <C-W>f     :<C-U>exe <SID>gf(v:count1,"\<Lt>C-W>f",'split')<CR>
-    nnoremap <silent> <buffer> <C-W><C-F> :<C-U>exe <SID>gf(v:count1,"\<Lt>C-W>\<Lt>C-F>",'split')<CR>
-    nnoremap <silent> <buffer> <C-W>gf    :<C-U>exe <SID>gf(v:count1,"\<Lt>C-W>gf",'tabedit')<CR>
-    let b:undo_ftplugin = b:undo_ftplugin
-          \."| sil! exe 'nunmap <buffer> gf' | sil! exe 'nunmap <buffer> <C-W>f' | sil! exe 'nunmap <buffer> <C-W><C-F>' | sil! exe 'nunmap <buffer> <C-W>gf'"
-  endif
+  cmap <buffer><script><expr> <SID>tagzv &foldopen =~# 'tag' ? '<Bar>norm! zv' : ''
+  call s:map('n', '<silent>', '<C-]>       <SID>:exe  v:count1."tag <Plug><cword>"<SID>tagzv<CR>')
+  call s:map('n', '<silent>', 'g<C-]>      <SID>:exe         "tjump <Plug><cword>"<SID>tagzv<CR>')
+  call s:map('n', '<silent>', 'g]          <SID>:exe       "tselect <Plug><cword>"<SID>tagzv<CR>')
+  call s:map('n', '<silent>', '<C-W>]      <SID>:exe v:count1."stag <Plug><cword>"<SID>tagzv<CR>')
+  call s:map('n', '<silent>', '<C-W><C-]>  <SID>:exe v:count1."stag <Plug><cword>"<SID>tagzv<CR>')
+  call s:map('n', '<silent>', '<C-W>g<C-]> <SID>:exe        "stjump <Plug><cword>"<SID>tagzv<CR>')
+  call s:map('n', '<silent>', '<C-W>g]     <SID>:exe      "stselect <Plug><cword>"<SID>tagzv<CR>')
+  call s:map('n', '<silent>', '<C-W>}      <SID>:exe v:count1."ptag <Plug><cword>"<CR>')
+  call s:map('n', '<silent>', '<C-W>g}     <SID>:exe        "ptjump <Plug><cword>"<CR>')
+
+  call s:map('n', '<silent>', 'gf           <SID>c:find <Plug><cfile><CR>')
+  call s:map('n', '<silent>', '<C-W>f      <SID>c:sfind <Plug><cfile><CR>')
+  call s:map('n', '<silent>', '<C-W><C-F>  <SID>c:sfind <Plug><cfile><CR>')
+  call s:map('n', '<silent>', '<C-W>gf   <SID>c:tabfind <Plug><cfile><CR>')
 endif
 
 let &cpo = s:cpo_save
@@ -225,7 +232,7 @@ if exists("g:did_ruby_ftplugin_functions
 endif
 let g:did_ruby_ftplugin_functions = 1
 
-function! RubyBalloonexpr()
+function! RubyBalloonexpr() abort
   if !exists('s:ri_found')
     let s:ri_found = executable('ri')
   endif
@@ -274,13 +281,13 @@ function! RubyBalloonexpr()
   endif
 endfunction
 
-function! s:searchsyn(pattern,syn,flags,mode)
+function! s:searchsyn(pattern, syn, flags, mode) abort
+  let cnt = v:count1
   norm! m'
   if a:mode ==# 'v'
     norm! gv
   endif
   let i = 0
-  let cnt = v:count ? v:count : 1
   while i < cnt
     let i = i + 1
     let line = line('.')
@@ -296,11 +303,11 @@ function! s:searchsyn(pattern,syn,flags,
   endwhile
 endfunction
 
-function! s:synname()
+function! s:synname() abort
   return synIDattr(synID(line('.'),col('.'),0),'name')
 endfunction
 
-function! s:wrap_i(back,forward)
+function! s:wrap_i(back,forward) abort
   execute 'norm k'.a:forward
   let line = line('.')
   execute 'norm '.a:back
@@ -310,7 +317,7 @@ function! s:wrap_i(back,forward)
   execute 'norm jV'.a:forward.'k'
 endfunction
 
-function! s:wrap_a(back,forward)
+function! s:wrap_a(back,forward) abort
   execute 'norm '.a:forward
   if line('.') < line('$') && getline(line('.')+1) ==# ''
     let after = 1
@@ -328,37 +335,55 @@ function! s:wrap_a(back,forward)
   endif
 endfunction
 
-function! RubyCursorIdentifier()
+function! RubyCursorIdentifier() abort
   let asciicode    = '\%(\w\|[]})\"'."'".']\)\@<!\%(?\%(\\M-\\C-\|\\C-\\M-\|\\M-\\c\|\\c\\M-\|\\c\|\\C-\|\\M-\)\=\%(\\\o\{1,3}\|\\x\x\{1,2}\|\\\=\S\)\)'
   let number       = '\%(\%(\w\|[]})\"'."'".']\s*\)\@<!-\)\=\%(\<[[:digit:]_]\+\%(\.[[:digit:]_]\+\)\=\%([Ee][[:digit:]_]\+\)\=\>\|\<0[xXbBoOdD][[:xdigit:]_]\+\>\)\|'.asciicode
   let operator     = '\%(\[\]\|<<\|<=>\|[!<>]=\=\|===\=\|[!=]\~\|>>\|\*\*\|\.\.\.\=\|=>\|[~^&|*/%+-]\)'
-  let method       = '\%(\<[_a-zA-Z]\w*\>\%([?!]\|\s*=>\@!\)\=\)'
+  let method       = '\%(\.[_a-zA-Z]\w*\s*=>\@!\|\<[_a-zA-Z]\w*\>[?!]\=\)'
   let global       = '$\%([!$&"'."'".'*+,./:;<=>?@\`~]\|-\=\w\+\>\)'
   let symbolizable = '\%(\%(@@\=\)\w\+\>\|'.global.'\|'.method.'\|'.operator.'\)'
   let pattern      = '\C\s*\%('.number.'\|\%(:\@<!:\)\='.symbolizable.'\)'
   let [lnum, col]  = searchpos(pattern,'bcn',line('.'))
   let raw          = matchstr(getline('.')[col-1 : ],pattern)
-  let stripped     = substitute(substitute(raw,'\s\+=$','=',''),'^\s*:\=','','')
+  let stripped     = substitute(substitute(raw,'\s\+=$','=',''),'^\s*[:.]\=','','')
   return stripped == '' ? expand("<cword>") : stripped
 endfunction
 
-function! s:gf(count,map,edit) abort
-  if getline('.') =~# '^\s*require_relative\s*\(["'']\).*\1\s*$'
-    let target = matchstr(getline('.'),'\(["'']\)\zs.\{-\}\ze\1')
-    return a:edit.' %:h/'.target.'.rb'
-  elseif getline('.') =~# '^\s*\%(require[( ]\|load[( ]\|autoload[( ]:\w\+,\)\s*\s*\%(::\)\=File\.expand_path(\(["'']\)\.\./.*\1,\s*__FILE__)\s*$'
-    let target = matchstr(getline('.'),'\(["'']\)\.\./\zs.\{-\}\ze\1')
-    return a:edit.' %:h/'.target.'.rb'
+function! RubyCursorFile() abort
+  let isfname = &isfname
+  try
+    set isfname+=:
+    let cfile = expand('<cfile>')
+  finally
+    let isfname = &isfname
+  endtry
+  let pre = matchstr(strpart(getline('.'), 0, col('.')-1), '.*\f\@<!')
+  let post = matchstr(strpart(getline('.'), col('.')), '\f\@!.*')
+  let ext = getline('.') =~# '^\s*\%(require\%(_relative\)\=\|autoload\)\>' && cfile !~# '\.rb$' ? '.rb' : ''
+  if s:synname() ==# 'rubyConstant'
+    let cfile = substitute(cfile,'\.\w\+[?!=]\=$','','')
+    let cfile = substitute(cfile,'::','/','g')
+    let cfile = substitute(cfile,'\(\u\+\)\(\u\l\)','\1_\2', 'g')
+    let cfile = substitute(cfile,'\(\l\|\d\)\(\u\)','\1_\2', 'g')
+    return tolower(cfile) . '.rb'
+  elseif getline('.') =~# '^\s*require_relative\s*\(["'']\).*\1\s*$'
+    let cfile = expand('%:p:h') . '/' . matchstr(getline('.'),'\(["'']\)\zs.\{-\}\ze\1') . ext
+  elseif getline('.') =~# '^\s*\%(require[( ]\|load[( ]\|autoload[( ]:\w\+,\)\s*\%(::\)\=File\.expand_path(\(["'']\)\.\./.*\1,\s*__FILE__)\s*$'
+    let target = matchstr(getline('.'),'\(["'']\)\.\.\zs/.\{-\}\ze\1')
+    let cfile = expand('%:p:h') . target . ext
   elseif getline('.') =~# '^\s*\%(require \|load \|autoload :\w\+,\)\s*\(["'']\).*\1\s*$'
-    let target = matchstr(getline('.'),'\(["'']\)\zs.\{-\}\ze\1')
+    let cfile = matchstr(getline('.'),'\(["'']\)\zs.\{-\}\ze\1') . ext
+  elseif pre.post =~# '\<File.expand_path[( ].*[''"]\{2\}, *__FILE__\>' && cfile =~# '^\.\.'
+    let cfile = expand('%:p:h') . strpart(cfile, 2)
   else
-    let target = expand('<cfile>')
+    return substitute(cfile, '\C\v^(.*):(\d+)%(:in)=$', '+\2 \1', '')
   endif
-  let found = findfile(target, &path, a:count)
-  if found ==# ''
-    return 'norm! '.a:count.a:map
+  let cwdpat = '^\M' . substitute(getcwd(), '[\/]', '\\[\\/]', 'g').'\ze\[\/]'
+  let cfile = substitute(cfile, cwdpat, '.', '')
+  if fnameescape(cfile) !=# cfile
+    return '+ '.fnameescape(cfile)
   else
-    return a:edit.' '.fnameescape(found)
+    return cfile
   endif
 endfunction
 
diff --git a/runtime/ftplugin/sass.vim b/runtime/ftplugin/sass.vim
--- a/runtime/ftplugin/sass.vim
+++ b/runtime/ftplugin/sass.vim
@@ -1,7 +1,7 @@
 " Vim filetype plugin
 " Language:	Sass
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2010 Jul 26
+" Last Change:	2016 Aug 29
 
 " Only do this when not done yet for this buffer
 if exists("b:did_ftplugin")
@@ -9,8 +9,9 @@ if exists("b:did_ftplugin")
 endif
 let b:did_ftplugin = 1
 
-let b:undo_ftplugin = "setl cms< def< inc< inex< ofu< sua<"
+let b:undo_ftplugin = "setl com< cms< def< inc< inex< ofu< sua<"
 
+setlocal comments=://
 setlocal commentstring=//\ %s
 setlocal define=^\\s*\\%(@mixin\\\|=\\)
 setlocal includeexpr=substitute(v:fname,'\\%(.*/\\\|^\\)\\zs','_','')
diff --git a/runtime/ftplugin/scss.vim b/runtime/ftplugin/scss.vim
--- a/runtime/ftplugin/scss.vim
+++ b/runtime/ftplugin/scss.vim
@@ -1,12 +1,13 @@
 " Vim filetype plugin
 " Language:	SCSS
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2010 Jul 26
+" Last Change:	2016 Aug 29
 
 if exists("b:did_ftplugin")
   finish
 endif
 
 runtime! ftplugin/sass.vim
+setlocal comments=s1:/*,mb:*,ex:*/,://
 
 " vim:set sw=2:
diff --git a/runtime/indent/cucumber.vim b/runtime/indent/cucumber.vim
--- a/runtime/indent/cucumber.vim
+++ b/runtime/indent/cucumber.vim
@@ -1,7 +1,7 @@
 " Vim indent file
 " Language:	Cucumber
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists("b:did_indent")
   finish
@@ -27,6 +27,7 @@ function! GetCucumberIndent()
   let line  = getline(prevnonblank(v:lnum-1))
   let cline = getline(v:lnum)
   let nline = getline(nextnonblank(v:lnum+1))
+  let sw = exists('*shiftwidth') ? shiftwidth() : &sw
   let syn = s:syn(prevnonblank(v:lnum-1))
   let csyn = s:syn(v:lnum)
   let nsyn = s:syn(nextnonblank(v:lnum+1))
@@ -35,38 +36,38 @@ function! GetCucumberIndent()
     return 0
   elseif csyn ==# 'cucumberExamples' || cline =~# '^\s*\%(Examples\|Scenarios\):'
     " examples heading
-    return 2 * &sw
+    return 2 * sw
   elseif csyn =~# '^cucumber\%(Background\|Scenario\|ScenarioOutline\)$' || cline =~# '^\s*\%(Background\|Scenario\|Scenario Outline\):'
     " background, scenario or outline heading
-    return &sw
+    return sw
   elseif syn ==# 'cucumberFeature' || line =~# '^\s*Feature:'
     " line after feature heading
-    return &sw
+    return sw
   elseif syn ==# 'cucumberExamples' || line =~# '^\s*\%(Examples\|Scenarios\):'
     " line after examples heading
-    return 3 * &sw
+    return 3 * sw
   elseif syn =~# '^cucumber\%(Background\|Scenario\|ScenarioOutline\)$' || line =~# '^\s*\%(Background\|Scenario\|Scenario Outline\):'
     " line after background, scenario or outline heading
-    return 2 * &sw
+    return 2 * sw
   elseif cline =~# '^\s*[@#]' && (nsyn == 'cucumberFeature' || nline =~# '^\s*Feature:' || indent(prevnonblank(v:lnum-1)) <= 0)
     " tag or comment before a feature heading
     return 0
   elseif cline =~# '^\s*@'
     " other tags
-    return &sw
+    return sw
   elseif cline =~# '^\s*[#|]' && line =~# '^\s*|'
     " mid-table
     " preserve indent
     return indent(prevnonblank(v:lnum-1))
   elseif cline =~# '^\s*|' && line =~# '^\s*[^|]'
     " first line of a table, relative indent
-    return indent(prevnonblank(v:lnum-1)) + &sw
+    return indent(prevnonblank(v:lnum-1)) + sw
   elseif cline =~# '^\s*[^|]' && line =~# '^\s*|'
     " line after a table, relative unindent
-    return indent(prevnonblank(v:lnum-1)) - &sw
+    return indent(prevnonblank(v:lnum-1)) - sw
   elseif cline =~# '^\s*#' && getline(v:lnum-1) =~ '^\s*$' && (nsyn =~# '^cucumber\%(Background\|Scenario\|ScenarioOutline\)$' || nline =~# '^\s*\%(Background\|Scenario\|Scenario Outline\):')
     " comments on scenarios
-    return &sw
+    return sw
   endif
   return indent(prevnonblank(v:lnum-1))
 endfunction
diff --git a/runtime/indent/eruby.vim b/runtime/indent/eruby.vim
--- a/runtime/indent/eruby.vim
+++ b/runtime/indent/eruby.vim
@@ -19,6 +19,9 @@ else
 endif
 unlet! b:did_indent
 
+" Force HTML indent to not keep state.
+let b:html_indent_usestate = 0
+
 if &l:indentexpr == ''
   if &l:cindent
     let &l:indentexpr = 'cindent(v:lnum)'
@@ -38,7 +41,18 @@ if exists("*GetErubyIndent")
   finish
 endif
 
+" this file uses line continuations
+let s:cpo_sav = &cpo
+set cpo&vim
+
 function! GetErubyIndent(...)
+  " The value of a single shift-width
+  if exists('*shiftwidth')
+    let sw = shiftwidth()
+  else
+    let sw = &sw
+  endif
+
   if a:0 && a:1 == '.'
     let v:lnum = line('.')
   elseif a:0 && a:1 =~ '^\d'
@@ -52,31 +66,44 @@ function! GetErubyIndent(...)
     let ind = GetRubyIndent(v:lnum)
   else
     exe "let ind = ".b:eruby_subtype_indentexpr
+
+    " Workaround for Andy Wokula's HTML indent. This should be removed after
+    " some time, since the newest version is fixed in a different way.
+    if b:eruby_subtype_indentexpr =~# '^HtmlIndent('
+	  \ && exists('b:indent')
+	  \ && type(b:indent) == type({})
+	  \ && has_key(b:indent, 'lnum')
+      " Force HTML indent to not keep state
+      let b:indent.lnum = -1
+    endif
   endif
   let lnum = prevnonblank(v:lnum-1)
   let line = getline(lnum)
   let cline = getline(v:lnum)
   if cline =~# '^\s*<%[-=]\=\s*\%(}\|end\|else\|\%(ensure\|rescue\|elsif\|when\).\{-\}\)\s*\%([-=]\=%>\|$\)'
-    let ind = ind - &sw
+    let ind = ind - sw
   endif
   if line =~# '\S\s*<%[-=]\=\s*\%(}\|end\).\{-\}\s*\%([-=]\=%>\|$\)'
-    let ind = ind - &sw
+    let ind = ind - sw
   endif
   if line =~# '\%({\|\<do\)\%(\s*|[^|]*|\)\=\s*[-=]\=%>'
-    let ind = ind + &sw
+    let ind = ind + sw
   elseif line =~# '<%[-=]\=\s*\%(module\|class\|def\|if\|for\|while\|until\|else\|elsif\|case\|when\|unless\|begin\|ensure\|rescue\)\>.*%>'
-    let ind = ind + &sw
+    let ind = ind + sw
   endif
   if line =~# '^\s*<%[=#-]\=\s*$' && cline !~# '^\s*end\>'
-    let ind = ind + &sw
+    let ind = ind + sw
   endif
-  if line !~# '^\s*<%' && line =~# '%>\s*$'
-    let ind = ind - &sw
+  if line !~# '^\s*<%' && line =~# '%>\s*$' && line !~# '^\s*end\>'
+    let ind = ind - sw
   endif
   if cline =~# '^\s*[-=]\=%>\s*$'
-    let ind = ind - &sw
+    let ind = ind - sw
   endif
   return ind
 endfunction
 
+let &cpo = s:cpo_sav
+unlet! s:cpo_sav
+
 " vim:set sw=2 sts=2 ts=8 noet:
diff --git a/runtime/indent/fortran.vim b/runtime/indent/fortran.vim
--- a/runtime/indent/fortran.vim
+++ b/runtime/indent/fortran.vim
@@ -1,7 +1,7 @@
 " Vim indent file
 " Language:	Fortran 2008 (and older: Fortran 2003, 95, 90, and 77)
 " Version:	0.45
-" Last Change:	2016 Aug. 18
+" Last Change:	2016 Aug. 29
 " Maintainer:	Ajit J. Thakkar <ajit@unb.ca>; <http://www2.unb.ca/~ajit/>
 " Usage:	For instructions, do :help fortran-indent from Vim
 " Credits:
@@ -152,9 +152,6 @@ function FortranGetIndent(lnum)
   if prevstat =~ '&\s*$' && prev2stat !~ '&\s*$'
     let ind = ind + shiftwidth()
   endif
-  if prevstat =~ '&\s*$' && prevstat =~ '\<else\s*if\>'
-    let ind = ind - shiftwidth()
-  endif
   "Line after last continuation line
   if prevstat !~ '&\s*$' && prev2stat =~ '&\s*$' && prevstat !~? '\<then\>'
     let ind = ind - shiftwidth()
diff --git a/runtime/indent/gitconfig.vim b/runtime/indent/gitconfig.vim
--- a/runtime/indent/gitconfig.vim
+++ b/runtime/indent/gitconfig.vim
@@ -1,7 +1,7 @@
 " Vim indent file
 " Language:	git config file
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists("b:did_indent")
   finish
@@ -20,17 +20,18 @@ if exists("*GetGitconfigIndent")
 endif
 
 function! GetGitconfigIndent()
+  let sw    = exists('*shiftwidth') ? shiftwidth() : &sw
   let line  = getline(prevnonblank(v:lnum-1))
   let cline = getline(v:lnum)
   if line =~  '\\\@<!\%(\\\\\)*\\$'
     " odd number of slashes, in a line continuation
-    return 2 * &sw
+    return 2 * sw
   elseif cline =~ '^\s*\['
     return 0
   elseif cline =~ '^\s*\a'
-    return &sw
+    return sw
   elseif cline == ''       && line =~ '^\['
-    return &sw
+    return sw
   else
     return -1
   endif
diff --git a/runtime/indent/haml.vim b/runtime/indent/haml.vim
--- a/runtime/indent/haml.vim
+++ b/runtime/indent/haml.vim
@@ -1,7 +1,7 @@
 " Vim indent file
 " Language:	Haml
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists("b:did_indent")
   finish
@@ -37,10 +37,11 @@ function! GetHamlIndent()
   let line = substitute(line,'^\s\+','','')
   let indent = indent(lnum)
   let cindent = indent(v:lnum)
+  let sw = exists('*shiftwidth') ? shiftwidth() : &sw
   if cline =~# '\v^-\s*%(elsif|else|when)>'
-    let indent = cindent < indent ? cindent : indent - &sw
+    let indent = cindent < indent ? cindent : indent - sw
   endif
-  let increase = indent + &sw
+  let increase = indent + sw
   if indent == indent(lnum)
     let indent = cindent <= indent ? -1 : increase
   endif
diff --git a/runtime/indent/liquid.vim b/runtime/indent/liquid.vim
--- a/runtime/indent/liquid.vim
+++ b/runtime/indent/liquid.vim
@@ -1,7 +1,7 @@
 " Vim indent file
 " Language:     Liquid
 " Maintainer:   Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists('b:did_indent')
   finish
@@ -54,9 +54,10 @@ function! GetLiquidIndent(...)
   let line  = substitute(line,'\C^\%(\s*{%\s*end\w*\s*%}\)\+','','')
   let line .= matchstr(cline,'\C^\%(\s*{%\s*end\w*\s*%}\)\+')
   let cline = substitute(cline,'\C^\%(\s*{%\s*end\w*\s*%}\)\+','','')
-  let ind += &sw * s:count(line,'{%\s*\%(if\|elsif\|else\|unless\|ifchanged\|case\|when\|for\|empty\|tablerow\|capture\)\>')
-  let ind -= &sw * s:count(line,'{%\s*end\%(if\|unless\|ifchanged\|case\|for\|tablerow\|capture\)\>')
-  let ind -= &sw * s:count(cline,'{%\s*\%(elsif\|else\|when\|empty\)\>')
-  let ind -= &sw * s:count(cline,'{%\s*end\w*$')
+  let sw = exists('*shiftwidth') ? shiftwidth() : &sw
+  let ind += sw * s:count(line,'{%\s*\%(if\|elsif\|else\|unless\|ifchanged\|case\|when\|for\|empty\|tablerow\|capture\)\>')
+  let ind -= sw * s:count(line,'{%\s*end\%(if\|unless\|ifchanged\|case\|for\|tablerow\|capture\)\>')
+  let ind -= sw * s:count(cline,'{%\s*\%(elsif\|else\|when\|empty\)\>')
+  let ind -= sw * s:count(cline,'{%\s*end\w*$')
   return ind
 endfunction
diff --git a/runtime/indent/ruby.vim b/runtime/indent/ruby.vim
--- a/runtime/indent/ruby.vim
+++ b/runtime/indent/ruby.vim
@@ -13,12 +13,23 @@ if exists("b:did_indent")
 endif
 let b:did_indent = 1
 
+if !exists('g:ruby_indent_access_modifier_style')
+  " Possible values: "normal", "indent", "outdent"
+  let g:ruby_indent_access_modifier_style = 'normal'
+endif
+
+if !exists('g:ruby_indent_block_style')
+  " Possible values: "expression", "do"
+  let g:ruby_indent_block_style = 'expression'
+endif
+
 setlocal nosmartindent
 
 " Now, set up our indentation expression and keys that trigger it.
 setlocal indentexpr=GetRubyIndent(v:lnum)
-setlocal indentkeys=0{,0},0),0],!^F,o,O,e
+setlocal indentkeys=0{,0},0),0],!^F,o,O,e,:,.
 setlocal indentkeys+==end,=else,=elsif,=when,=ensure,=rescue,==begin,==end
+setlocal indentkeys+==private,=protected,=public
 
 " Only define the function once.
 if exists("*GetRubyIndent")
@@ -34,7 +45,7 @@ set cpo&vim
 " Regex of syntax group names that are or delimit strings/symbols or are comments.
 let s:syng_strcom = '\<ruby\%(Regexp\|RegexpDelimiter\|RegexpEscape' .
       \ '\|Symbol\|String\|StringDelimiter\|StringEscape\|ASCIICode' .
-      \ '\|Interpolation\|NoInterpolation\|Comment\|Documentation\)\>'
+      \ '\|Interpolation\|InterpolationDelimiter\|NoInterpolation\|Comment\|Documentation\)\>'
 
 " Regex of syntax group names that are strings.
 let s:syng_string =
@@ -49,9 +60,10 @@ let s:skip_expr =
       \ "synIDattr(synID(line('.'),col('.'),1),'name') =~ '".s:syng_strcom."'"
 
 " Regex used for words that, at the start of a line, add a level of indent.
-let s:ruby_indent_keywords = '^\s*\zs\<\%(module\|class\|def\|if\|for' .
-      \ '\|while\|until\|else\|elsif\|case\|when\|unless\|begin\|ensure' .
-      \ '\|rescue\):\@!\>' .
+let s:ruby_indent_keywords =
+      \ '^\s*\zs\<\%(module\|class\|if\|for' .
+      \   '\|while\|until\|else\|elsif\|case\|when\|unless\|begin\|ensure\|rescue' .
+      \   '\|\%(public\|protected\|private\)\=\s*def\):\@!\>' .
       \ '\|\%([=,*/%+-]\|<<\|>>\|:\s\)\s*\zs' .
       \    '\<\%(if\|for\|while\|until\|case\|unless\|begin\):\@!\>'
 
@@ -64,7 +76,8 @@ let s:ruby_deindent_keywords =
 " TODO: the do here should be restricted somewhat (only at end of line)?
 let s:end_start_regex =
       \ '\C\%(^\s*\|[=,*/%+\-|;{]\|<<\|>>\|:\s\)\s*\zs' .
-      \ '\<\%(module\|class\|def\|if\|for\|while\|until\|case\|unless\|begin\):\@!\>' .
+      \ '\<\%(module\|class\|if\|for\|while\|until\|case\|unless\|begin' .
+      \   '\|\%(public\|protected\|private\)\=\s*def\):\@!\>' .
       \ '\|\%(^\|[^.:@$]\)\@<=\<do:\@!\>'
 
 " Regex that defines the middle-match for the 'end' keyword.
@@ -82,16 +95,35 @@ let s:end_skip_expr = s:skip_expr .
 let s:non_bracket_continuation_regex = '\%([\\.,:*/%+]\|\<and\|\<or\|\%(<%\)\@<![=-]\|\W[|&?]\|||\|&&\)\s*\%(#.*\)\=$'
 
 " Regex that defines continuation lines.
-" TODO: this needs to deal with if ...: and so on
 let s:continuation_regex =
       \ '\%(%\@<![({[\\.,:*/%+]\|\<and\|\<or\|\%(<%\)\@<![=-]\|\W[|&?]\|||\|&&\)\s*\%(#.*\)\=$'
 
+" Regex that defines continuable keywords
+let s:continuable_regex =
+      \ '\C\%(^\s*\|[=,*/%+\-|;{]\|<<\|>>\|:\s\)\s*\zs' .
+      \ '\<\%(if\|for\|while\|until\|unless\):\@!\>'
+
 " Regex that defines bracket continuations
 let s:bracket_continuation_regex = '%\@<!\%([({[]\)\s*\%(#.*\)\=$'
 
+" Regex that defines dot continuations
+let s:dot_continuation_regex = '%\@<!\.\s*\%(#.*\)\=$'
+
+" Regex that defines backslash continuations
+let s:backslash_continuation_regex = '%\@<!\\\s*$'
+
+" Regex that defines end of bracket continuation followed by another continuation
+let s:bracket_switch_continuation_regex = '^\([^(]\+\zs).\+\)\+'.s:continuation_regex
+
 " Regex that defines the first part of a splat pattern
 let s:splat_regex = '[[,(]\s*\*\s*\%(#.*\)\=$'
 
+" Regex that describes all indent access modifiers
+let s:access_modifier_regex = '\C^\s*\%(public\|protected\|private\)\s*\%(#.*\)\=$'
+
+" Regex that describes the indent access modifiers (excludes public)
+let s:indent_access_modifier_regex = '\C^\s*\%(protected\|private\)\s*\%(#.*\)\=$'
+
 " Regex that defines blocks.
 "
 " Note that there's a slight problem with this regex and s:continuation_regex.
@@ -102,10 +134,13 @@ let s:splat_regex = '[[,(]\s*\*\s*\%(#.*
 " The reason is that the pipe matches a hanging "|" operator.
 "
 let s:block_regex =
-      \ '\%(\<do:\@!\>\|%\@<!{\)\s*\%(|\s*(*\s*\%([*@&]\=\h\w*,\=\s*\)\%(,\s*(*\s*[*@&]\=\h\w*\s*)*\s*\)*|\)\=\s*\%(#.*\)\=$'
+      \ '\%(\<do:\@!\>\|%\@<!{\)\s*\%(|[^|]*|\)\=\s*\%(#.*\)\=$'
 
 let s:block_continuation_regex = '^\s*[^])}\t ].*'.s:block_regex
 
+" Regex that describes a leading operator (only a method call's dot for now)
+let s:leading_operator_regex = '^\s*[.]'
+
 " 2. Auxiliary Functions {{{1
 " ======================
 
@@ -165,7 +200,21 @@ function s:GetMSL(lnum)
     " Otherwise, terminate search as we have found our MSL already.
     let line = getline(lnum)
 
-    if s:Match(lnum, s:splat_regex)
+    if !s:Match(msl, s:backslash_continuation_regex) &&
+          \ s:Match(lnum, s:backslash_continuation_regex)
+      " If the current line doesn't end in a backslash, but the previous one
+      " does, look for that line's msl
+      "
+      " Example:
+      "   foo = "bar" \
+      "     "baz"
+      "
+      let msl = lnum
+    elseif s:Match(msl, s:leading_operator_regex)
+      " If the current line starts with a leading operator, keep its indent
+      " and keep looking for an MSL.
+      let msl = lnum
+    elseif s:Match(lnum, s:splat_regex)
       " If the above line looks like the "*" of a splat, use the current one's
       " indentation.
       "
@@ -175,7 +224,7 @@ function s:GetMSL(lnum)
       "       something
       "
       return msl
-    elseif s:Match(line, s:non_bracket_continuation_regex) &&
+    elseif s:Match(lnum, s:non_bracket_continuation_regex) &&
           \ s:Match(msl, s:non_bracket_continuation_regex)
       " If the current line is a non-bracket continuation and so is the
       " previous one, keep its indent and continue looking for an MSL.
@@ -186,6 +235,18 @@ function s:GetMSL(lnum)
       "     three
       "
       let msl = lnum
+    elseif s:Match(lnum, s:dot_continuation_regex) &&
+          \ (s:Match(msl, s:bracket_continuation_regex) || s:Match(msl, s:block_continuation_regex))
+      " If the current line is a bracket continuation or a block-starter, but
+      " the previous is a dot, keep going to see if the previous line is the
+      " start of another continuation.
+      "
+      " Example:
+      "   parent.
+      "     method_call {
+      "     three
+      "
+      let msl = lnum
     elseif s:Match(lnum, s:non_bracket_continuation_regex) &&
           \ (s:Match(msl, s:bracket_continuation_regex) || s:Match(msl, s:block_continuation_regex))
       " If the current line is a bracket continuation or a block-starter, but
@@ -299,18 +360,39 @@ function s:ExtraBrackets(lnum)
 endfunction
 
 function s:Match(lnum, regex)
-  let col = match(getline(a:lnum), '\C'.a:regex) + 1
-  return col > 0 && !s:IsInStringOrComment(a:lnum, col) ? col : 0
+  let line   = getline(a:lnum)
+  let offset = match(line, '\C'.a:regex)
+  let col    = offset + 1
+
+  while offset > -1 && s:IsInStringOrComment(a:lnum, col)
+    let offset = match(line, '\C'.a:regex, offset + 1)
+    let col = offset + 1
+  endwhile
+
+  if offset > -1
+    return col
+  else
+    return 0
+  endif
 endfunction
 
-function s:MatchLast(lnum, regex)
-  let line = getline(a:lnum)
-  let col = match(line, '.*\zs' . a:regex)
-  while col != -1 && s:IsInStringOrComment(a:lnum, col)
-    let line = strpart(line, 0, col)
-    let col = match(line, '.*' . a:regex)
-  endwhile
-  return col + 1
+" Locates the containing class/module's definition line, ignoring nested classes
+" along the way.
+"
+function! s:FindContainingClass()
+  let saved_position = getpos('.')
+
+  while searchpair(s:end_start_regex, s:end_middle_regex, s:end_end_regex, 'bW',
+        \ s:end_skip_expr) > 0
+    if expand('<cword>') =~# '\<class\|module\>'
+      let found_lnum = line('.')
+      call setpos('.', saved_position)
+      return found_lnum
+    endif
+  endif
+
+  call setpos('.', saved_position)
+  return 0
 endfunction
 
 " 3. GetRubyIndent Function {{{1
@@ -320,6 +402,13 @@ function GetRubyIndent(...)
   " 3.1. Setup {{{2
   " ----------
 
+  " The value of a single shift-width
+  if exists('*shiftwidth')
+    let sw = shiftwidth()
+  else
+    let sw = &sw
+  endif
+
   " For the current line, use the first argument if given, else v:lnum
   let clnum = a:0 ? a:1 : v:lnum
 
@@ -333,6 +422,24 @@ function GetRubyIndent(...)
   let line = getline(clnum)
   let ind = -1
 
+  " If this line is an access modifier keyword, align according to the closest
+  " class declaration.
+  if g:ruby_indent_access_modifier_style == 'indent'
+    if s:Match(clnum, s:access_modifier_regex)
+      let class_line = s:FindContainingClass()
+      if class_line > 0
+        return indent(class_line) + sw
+      endif
+    endif
+  elseif g:ruby_indent_access_modifier_style == 'outdent'
+    if s:Match(clnum, s:access_modifier_regex)
+      let class_line = s:FindContainingClass()
+      if class_line > 0
+        return indent(class_line)
+      endif
+    endif
+  endif
+
   " If we got a closing bracket on an empty line, find its match and indent
   " according to it.  For parentheses we indent to its column - 1, for the
   " others we indent to the containing line's MSL's level.  Return -1 if fail.
@@ -343,7 +450,9 @@ function GetRubyIndent(...)
     if searchpair(escape(bs[0], '\['), '', bs[1], 'bW', s:skip_expr) > 0
       if line[col-1]==')' && col('.') != col('$') - 1
         let ind = virtcol('.') - 1
-      else
+      elseif g:ruby_indent_block_style == 'do'
+        let ind = indent(line('.'))
+      else " g:ruby_indent_block_style == 'expression'
         let ind = indent(s:GetMSL(line('.')))
       endif
     endif
@@ -366,10 +475,17 @@ function GetRubyIndent(...)
 
       if strpart(line, 0, col('.') - 1) =~ '=\s*$' &&
             \ strpart(line, col('.') - 1, 2) !~ 'do'
+        " assignment to case/begin/etc, on the same line, hanging indent
         let ind = virtcol('.') - 1
+      elseif g:ruby_indent_block_style == 'do'
+        " align to line of the "do", not to the MSL
+        let ind = indent(line('.'))
       elseif getline(msl) =~ '=\s*\(#.*\)\=$'
+        " in the case of assignment to the MSL, align to the starting line,
+        " not to the MSL
         let ind = indent(line('.'))
       else
+        " align to the MSL
         let ind = indent(msl)
       endif
     endif
@@ -389,6 +505,11 @@ function GetRubyIndent(...)
     return 0
   endif
 
+  " If the current line starts with a leading operator, add a level of indent.
+  if s:Match(clnum, s:leading_operator_regex)
+    return indent(s:GetMSL(clnum)) + sw
+  endif
+
   " 3.3. Work on the previous line. {{{2
   " -------------------------------
 
@@ -409,14 +530,50 @@ function GetRubyIndent(...)
   let line = getline(lnum)
   let ind = indent(lnum)
 
+  if g:ruby_indent_access_modifier_style == 'indent'
+    " If the previous line was a private/protected keyword, add a
+    " level of indent.
+    if s:Match(lnum, s:indent_access_modifier_regex)
+      return indent(lnum) + sw
+    endif
+  elseif g:ruby_indent_access_modifier_style == 'outdent'
+    " If the previous line was a private/protected/public keyword, add
+    " a level of indent, since the keyword has been out-dented.
+    if s:Match(lnum, s:access_modifier_regex)
+      return indent(lnum) + sw
+    endif
+  endif
+
+  if s:Match(lnum, s:continuable_regex) && s:Match(lnum, s:continuation_regex)
+    return indent(s:GetMSL(lnum)) + sw + sw
+  endif
+
   " If the previous line ended with a block opening, add a level of indent.
   if s:Match(lnum, s:block_regex)
-    return indent(s:GetMSL(lnum)) + &sw
+    let msl = s:GetMSL(lnum)
+
+    if g:ruby_indent_block_style == 'do'
+      " don't align to the msl, align to the "do"
+      let ind = indent(lnum) + sw
+    elseif getline(msl) =~ '=\s*\(#.*\)\=$'
+      " in the case of assignment to the msl, align to the starting line,
+      " not to the msl
+      let ind = indent(lnum) + sw
+    else
+      let ind = indent(msl) + sw
+    endif
+    return ind
+  endif
+
+  " If the previous line started with a leading operator, use its MSL's level
+  " of indent
+  if s:Match(lnum, s:leading_operator_regex)
+    return indent(s:GetMSL(lnum))
   endif
 
   " If the previous line ended with the "*" of a splat, add a level of indent
   if line =~ s:splat_regex
-    return indent(lnum) + &sw
+    return indent(lnum) + sw
   endif
 
   " If the previous line contained unclosed opening brackets and we are still
@@ -431,22 +588,22 @@ function GetRubyIndent(...)
     if opening.pos != -1
       if opening.type == '(' && searchpair('(', '', ')', 'bW', s:skip_expr) > 0
         if col('.') + 1 == col('$')
-          return ind + &sw
+          return ind + sw
         else
           return virtcol('.')
         endif
       else
         let nonspace = matchend(line, '\S', opening.pos + 1) - 1
-        return nonspace > 0 ? nonspace : ind + &sw
+        return nonspace > 0 ? nonspace : ind + sw
       endif
     elseif closing.pos != -1
       call cursor(lnum, closing.pos + 1)
       normal! %
 
       if s:Match(line('.'), s:ruby_indent_keywords)
-        return indent('.') + &sw
+        return indent('.') + sw
       else
-        return indent('.')
+        return indent(s:GetMSL(line('.')))
       endif
     else
       call cursor(clnum, vcol)
@@ -473,7 +630,7 @@ function GetRubyIndent(...)
   let col = s:Match(lnum, s:ruby_indent_keywords)
   if col > 0
     call cursor(lnum, col)
-    let ind = virtcol('.') - 1 + &sw
+    let ind = virtcol('.') - 1 + sw
     " TODO: make this better (we need to count them) (or, if a searchpair
     " fails, we know that something is lacking an end and thus we indent a
     " level
@@ -490,10 +647,14 @@ function GetRubyIndent(...)
   let p_lnum = lnum
   let lnum = s:GetMSL(lnum)
 
-  " If the previous line wasn't a MSL and is continuation return its indent.
-  " TODO: the || s:IsInString() thing worries me a bit.
+  " If the previous line wasn't a MSL.
   if p_lnum != lnum
-    if s:Match(p_lnum, s:non_bracket_continuation_regex) || s:IsInString(p_lnum,strlen(line))
+    " If previous line ends bracket and begins non-bracket continuation decrease indent by 1.
+    if s:Match(p_lnum, s:bracket_switch_continuation_regex)
+      return ind - 1
+    " If previous line is a continuation return its indent.
+    " TODO: the || s:IsInString() thing worries me a bit.
+    elseif s:Match(p_lnum, s:non_bracket_continuation_regex) || s:IsInString(p_lnum,strlen(line))
       return ind
     endif
   endif
@@ -506,9 +667,9 @@ function GetRubyIndent(...)
   " TODO: this does not take into account contrived things such as
   " module Foo; class Bar; end
   if s:Match(lnum, s:ruby_indent_keywords)
-    let ind = msl_ind + &sw
+    let ind = msl_ind + sw
     if s:Match(lnum, s:end_end_regex)
-      let ind = ind - &sw
+      let ind = ind - sw
     endif
     return ind
   endif
@@ -517,7 +678,7 @@ function GetRubyIndent(...)
   " closing bracket, indent one extra level.
   if s:Match(lnum, s:non_bracket_continuation_regex) && !s:Match(lnum, '^\s*\([\])}]\|end\)')
     if lnum == p_lnum
-      let ind = msl_ind + &sw
+      let ind = msl_ind + sw
     else
       let ind = msl_ind
     endif
diff --git a/runtime/indent/sass.vim b/runtime/indent/sass.vim
--- a/runtime/indent/sass.vim
+++ b/runtime/indent/sass.vim
@@ -1,7 +1,7 @@
 " Vim indent file
 " Language:	Sass
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists("b:did_indent")
   finish
@@ -29,9 +29,7 @@ function! GetSassIndent()
   let indent = indent(lnum)
   let cindent = indent(v:lnum)
   if line !~ s:property && line !~ s:extend && cline =~ s:property
-    return indent + &sw
-  "elseif line =~ s:property && cline !~ s:property
-    "return indent - &sw
+    return indent + (exists('*shiftwidth') ? shiftwidth() : &sw)
   else
     return -1
   endif
diff --git a/runtime/syntax/a65.vim b/runtime/syntax/a65.vim
--- a/runtime/syntax/a65.vim
+++ b/runtime/syntax/a65.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Clemens Kirchgatterer <clemens@1541.org>
 " Last Change:	2014 Jan 05
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -138,29 +135,21 @@ syn match  a65End			excludenl /end$/ con
 syn match  a65Continue	"\\$" contained
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_a65_syntax_inits")
-  if version < 508
-    let did_a65_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink a65Section	Special
-  HiLink a65Address	Special
-  HiLink a65Comment	Comment
-  HiLink a65PreProc	PreProc
-  HiLink a65Number	Number
-  HiLink a65String	String
-  HiLink a65Type	Statement
-  HiLink a65Opcode	Type
-  HiLink a65PC		Error
-  HiLink a65Todo	Todo
-  HiLink a65HiLo	Number
+HiLink a65Section	Special
+HiLink a65Address	Special
+HiLink a65Comment	Comment
+HiLink a65PreProc	PreProc
+HiLink a65Number	Number
+HiLink a65String	String
+HiLink a65Type	Statement
+HiLink a65Opcode	Type
+HiLink a65PC		Error
+HiLink a65Todo	Todo
+HiLink a65HiLo	Number
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "a65"
diff --git a/runtime/syntax/abap.vim b/runtime/syntax/abap.vim
--- a/runtime/syntax/abap.vim
+++ b/runtime/syntax/abap.vim
@@ -5,11 +5,8 @@
 " Last Change: 2013 Jun 13
 "     Comment: Thanks to EPI-USE Labs for all your assistance. :)
 
-" For version  < 6.0: Clear all syntax items
-" For version >= 6.0: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -43,11 +40,7 @@ syn match   abapStringEscape contained "
 syn match   abapNumber  "\-\=\<\d\+\>"
 syn region  abapHex     matchgroup=abapHex start="X'" end="'"
 
-if version >= 600
-  setlocal iskeyword=48-57,_,A-Z,a-z,/
-else
-  set iskeyword=48-57,_,A-Z,a-z,/
-endif
+setlocal iskeyword=48-57,_,A-Z,a-z,/
 
 syn match   abapNamespace        "\</\w\+/"
 
@@ -175,38 +168,30 @@ syn keyword abapTodo     contained TODO 
 syn match   abapTodo     "\#EC\W\+\w\+"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_abap_syntax_inits")
-  if version < 508
-    let did_abap_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink abapError          Error
-  HiLink abapComment        Comment
-  HiLink abapInclude        Include
-  HiLink abapStatement      Statement
-  HiLink abapComplexStatement      Statement
-  HiLink abapSpecial        Special
-  HiLink abapNamespace      Special
-  HiLink abapSpecialTables  Special
-  HiLink abapSymbolOperator abapOperator
-  HiLink abapOperator       Operator
-  HiLink abapCharString     String
-  HiLink abapString         String
-  HiLink abapFloat          Float
-  HiLink abapTypes          Type
-  HiLink abapSymbol         Structure
-  HiLink abapStructure      Structure
-  HiLink abapField          Variable
-  HiLink abapNumber         Number
-  HiLink abapHex            Number
+HiLink abapError          Error
+HiLink abapComment        Comment
+HiLink abapInclude        Include
+HiLink abapStatement      Statement
+HiLink abapComplexStatement      Statement
+HiLink abapSpecial        Special
+HiLink abapNamespace      Special
+HiLink abapSpecialTables  Special
+HiLink abapSymbolOperator abapOperator
+HiLink abapOperator       Operator
+HiLink abapCharString     String
+HiLink abapString         String
+HiLink abapFloat          Float
+HiLink abapTypes          Type
+HiLink abapSymbol         Structure
+HiLink abapStructure      Structure
+HiLink abapField          Variable
+HiLink abapNumber         Number
+HiLink abapHex            Number
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "abap"
 
diff --git a/runtime/syntax/abaqus.vim b/runtime/syntax/abaqus.vim
--- a/runtime/syntax/abaqus.vim
+++ b/runtime/syntax/abaqus.vim
@@ -4,11 +4,8 @@
 " Last Change:	2002 Feb 24
 " Remark:	Huge improvement in folding performance--see filetype plugin
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -25,24 +22,16 @@ syn match abaqusValue	"=\s*[^,]*"lc=1 co
 syn match abaqusBadLine	"^\s\+\*.*" display
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_abaqus_syn_inits")
-	if version < 508
-		let did_abaqus_syn_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	" The default methods for highlighting.  Can be overridden later
-	HiLink abaqusComment	Comment
-	HiLink abaqusKeyword	Statement
-	HiLink abaqusParameter	Identifier
-	HiLink abaqusValue	Constant
-	HiLink abaqusBadLine    Error
+" The default methods for highlighting.  Can be overridden later
+HiLink abaqusComment	Comment
+HiLink abaqusKeyword	Statement
+HiLink abaqusParameter	Identifier
+HiLink abaqusValue	Constant
+HiLink abaqusBadLine    Error
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "abaqus"
diff --git a/runtime/syntax/abc.vim b/runtime/syntax/abc.vim
--- a/runtime/syntax/abc.vim
+++ b/runtime/syntax/abc.vim
@@ -4,11 +4,8 @@
 " URL:		http://perun.hscs.wmin.ac.uk/~jra/vim/syntax/abc.vim
 " Last Change:	27th April 2001
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -36,28 +33,20 @@ syn match abcComment "%.*$"
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_abc_syn_inits")
-  if version < 508
-    let did_abc_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink abcComment		Comment
-  HiLink abcHeadField		Type
-  HiLink abcBodyField		Special
-  HiLink abcBar			Statement
-  HiLink abcTuple			Statement
-  HiLink abcBroken			Statement
-  HiLink abcTie			Statement
-  HiLink abcGuitarChord	Identifier
-  HiLink abcNote			Constant
+HiLink abcComment		Comment
+HiLink abcHeadField		Type
+HiLink abcBodyField		Special
+HiLink abcBar			Statement
+HiLink abcTuple			Statement
+HiLink abcBroken			Statement
+HiLink abcTie			Statement
+HiLink abcGuitarChord	Identifier
+HiLink abcNote			Constant
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "abc"
 
diff --git a/runtime/syntax/abel.vim b/runtime/syntax/abel.vim
--- a/runtime/syntax/abel.vim
+++ b/runtime/syntax/abel.vim
@@ -3,11 +3,8 @@
 " Maintainer:	John Cook <johncook3@gmail.com>
 " Last Change:	2011 Dec 27
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -123,48 +120,40 @@ endif
 syn sync minlines=1
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_abel_syn_inits")
-  if version < 508
-    let did_abel_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default highlighting.
-  HiLink abelHeader		abelStatement
-  HiLink abelSection		abelStatement
-  HiLink abelDeclaration	abelStatement
-  HiLink abelLogicalOperator	abelOperator
-  HiLink abelRangeOperator	abelOperator
-  HiLink abelAlternateOperator	abelOperator
-  HiLink abelArithmeticOperator	abelOperator
-  HiLink abelRelationalOperator	abelOperator
-  HiLink abelAssignmentOperator	abelOperator
-  HiLink abelTruthTableOperator	abelOperator
-  HiLink abelSpecifier		abelStatement
-  HiLink abelOperator		abelStatement
-  HiLink abelStatement		Statement
-  HiLink abelIdentifier		Identifier
-  HiLink abelTypeId		abelType
-  HiLink abelTypeIdChar		abelType
-  HiLink abelType		Type
-  HiLink abelNumber		abelString
-  HiLink abelString		String
-  HiLink abelConstant		Constant
-  HiLink abelComment		Comment
-  HiLink abelExtension		abelSpecial
-  HiLink abelSpecialChar	abelSpecial
-  HiLink abelTypeIdEnd		abelSpecial
-  HiLink abelSpecial		Special
-  HiLink abelDirective		PreProc
-  HiLink abelTodo		Todo
-  HiLink abelError		Error
+" The default highlighting.
+HiLink abelHeader		abelStatement
+HiLink abelSection		abelStatement
+HiLink abelDeclaration	abelStatement
+HiLink abelLogicalOperator	abelOperator
+HiLink abelRangeOperator	abelOperator
+HiLink abelAlternateOperator	abelOperator
+HiLink abelArithmeticOperator	abelOperator
+HiLink abelRelationalOperator	abelOperator
+HiLink abelAssignmentOperator	abelOperator
+HiLink abelTruthTableOperator	abelOperator
+HiLink abelSpecifier		abelStatement
+HiLink abelOperator		abelStatement
+HiLink abelStatement		Statement
+HiLink abelIdentifier		Identifier
+HiLink abelTypeId		abelType
+HiLink abelTypeIdChar		abelType
+HiLink abelType		Type
+HiLink abelNumber		abelString
+HiLink abelString		String
+HiLink abelConstant		Constant
+HiLink abelComment		Comment
+HiLink abelExtension		abelSpecial
+HiLink abelSpecialChar	abelSpecial
+HiLink abelTypeIdEnd		abelSpecial
+HiLink abelSpecial		Special
+HiLink abelDirective		PreProc
+HiLink abelTodo		Todo
+HiLink abelError		Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "abel"
 
diff --git a/runtime/syntax/acedb.vim b/runtime/syntax/acedb.vim
--- a/runtime/syntax/acedb.vim
+++ b/runtime/syntax/acedb.vim
@@ -7,11 +7,8 @@
 " Syntax file to handle all $ACEDB/wspec/*.wrm files, primarily models.wrm
 " AceDB software is available from http://www.acedb.org
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -86,35 +83,27 @@ syn region	acedbString	start=/"/ end=/"/
 " Rest of syntax highlighting rules start here
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_acedb_syn_inits")
-  if version < 508
-    let did_acedb_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink acedbMagic	Special
-  HiLink acedbHyb	Special
-  HiLink acedbType	Type
-  HiLink acedbOption	Type
-  HiLink acedbSubclass	Type
-  HiLink acedbSubtag	Include
-  HiLink acedbFlag	Include
-  HiLink acedbTag	Include
-  HiLink acedbClass	Todo
-  HiLink acedbHelp	Todo
-  HiLink acedbXref	Identifier
-  HiLink acedbModifier	Label
-  HiLink acedbComment	Comment
-  HiLink acedbBlock	ModeMsg
-  HiLink acedbNumber	Number
-  HiLink acedbString	String
+HiLink acedbMagic	Special
+HiLink acedbHyb	Special
+HiLink acedbType	Type
+HiLink acedbOption	Type
+HiLink acedbSubclass	Type
+HiLink acedbSubtag	Include
+HiLink acedbFlag	Include
+HiLink acedbTag	Include
+HiLink acedbClass	Todo
+HiLink acedbHelp	Todo
+HiLink acedbXref	Identifier
+HiLink acedbModifier	Label
+HiLink acedbComment	Comment
+HiLink acedbBlock	ModeMsg
+HiLink acedbNumber	Number
+HiLink acedbString	String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "acedb"
 
diff --git a/runtime/syntax/aflex.vim b/runtime/syntax/aflex.vim
--- a/runtime/syntax/aflex.vim
+++ b/runtime/syntax/aflex.vim
@@ -7,21 +7,14 @@
 " Comment:	Replaced sourcing c.vim file by ada.vim and rename lex*
 "		in aflex*
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-   syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
    finish
 endif
 
 " Read the Ada syntax to start with
-if version < 600
-   so <sfile>:p:h/ada.vim
-else
-   runtime! syntax/ada.vim
-   unlet b:current_syntax
-endif
+runtime! syntax/ada.vim
+unlet b:current_syntax
 
 
 " --- AfLex stuff ---
@@ -69,31 +62,22 @@ syn sync match aflexSyncPat	groupthere a
 syn sync match aflexSyncPat	groupthere aflexPatBlock	"^%%$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink	aflexSlashQuote	aflexPat
+HiLink	aflexBrace		aflexPat
+HiLink aflexAbbrvComment	aflexPatComment
 
-if version >= 508 || !exists("did_aflex_syntax_inits")
-   if version < 508
-      let did_aflex_syntax_inits = 1
-      command -nargs=+ HiLink hi link <args>
-   else
-      command -nargs=+ HiLink hi def link <args>
-   endif
-  HiLink	aflexSlashQuote	aflexPat
-  HiLink	aflexBrace		aflexPat
-  HiLink aflexAbbrvComment	aflexPatComment
-
-  HiLink	aflexAbbrv		SpecialChar
-  HiLink	aflexAbbrvRegExp	Macro
-  HiLink	aflexCFunctions	Function
-  HiLink	aflexMorePat	SpecialChar
-  HiLink	aflexPat		Function
-  HiLink	aflexPatComment	Comment
-  HiLink	aflexPatString	Function
-  HiLink	aflexPatTag		Special
-  HiLink	aflexSep		Delimiter
-  delcommand HiLink
-endif
+HiLink	aflexAbbrv		SpecialChar
+HiLink	aflexAbbrvRegExp	Macro
+HiLink	aflexCFunctions	Function
+HiLink	aflexMorePat	SpecialChar
+HiLink	aflexPat		Function
+HiLink	aflexPatComment	Comment
+HiLink	aflexPatString	Function
+HiLink	aflexPatTag		Special
+HiLink	aflexSep		Delimiter
+delcommand HiLink
 
 let b:current_syntax = "aflex"
 
diff --git a/runtime/syntax/ahdl.vim b/runtime/syntax/ahdl.vim
--- a/runtime/syntax/ahdl.vim
+++ b/runtime/syntax/ahdl.vim
@@ -3,11 +3,8 @@
 " Maintainer:	John Cook <john.cook@kla-tencor.com>
 " Last Change:	2001 Apr 25
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -66,29 +63,21 @@ syn match   ahdlSpecialChar "[\[\]().,;]
 syn sync minlines=1
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_ahdl_syn_inits")
-  if version < 508
-    let did_ahdl_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default highlighting.
-  HiLink ahdlNumber		ahdlString
-  HiLink ahdlMegafunction	ahdlIdentifier
-  HiLink ahdlSpecialChar	SpecialChar
-  HiLink ahdlKeyword		Statement
-  HiLink ahdlString		String
-  HiLink ahdlComment		Comment
-  HiLink ahdlIdentifier		Identifier
-  HiLink ahdlOperator		Operator
-  HiLink ahdlTodo		Todo
+" The default highlighting.
+HiLink ahdlNumber		ahdlString
+HiLink ahdlMegafunction	ahdlIdentifier
+HiLink ahdlSpecialChar	SpecialChar
+HiLink ahdlKeyword		Statement
+HiLink ahdlString		String
+HiLink ahdlComment		Comment
+HiLink ahdlIdentifier		Identifier
+HiLink ahdlOperator		Operator
+HiLink ahdlTodo		Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "ahdl"
 " vim:ts=8
diff --git a/runtime/syntax/amiga.vim b/runtime/syntax/amiga.vim
--- a/runtime/syntax/amiga.vim
+++ b/runtime/syntax/amiga.vim
@@ -5,11 +5,8 @@
 " Version:     7
 " URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_AMIGA
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -72,29 +69,21 @@ syn match	amiComment	";.*$" contains=ami
 syn sync lines=50
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_amiga_syn_inits")
-  if version < 508
-    let did_amiga_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink amiAlias	Type
-  HiLink amiComment	Comment
-  HiLink amiDev	Type
-  HiLink amiEcho	String
-  HiLink amiElse	Statement
-  HiLink amiError	Error
-  HiLink amiKey	Statement
-  HiLink amiNumber	Number
-  HiLink amiString	String
-  HiLink amiTest	Special
+HiLink amiAlias	Type
+HiLink amiComment	Comment
+HiLink amiDev	Type
+HiLink amiEcho	String
+HiLink amiElse	Statement
+HiLink amiError	Error
+HiLink amiKey	Statement
+HiLink amiNumber	Number
+HiLink amiString	String
+HiLink amiTest	Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "amiga"
 
diff --git a/runtime/syntax/aml.vim b/runtime/syntax/aml.vim
--- a/runtime/syntax/aml.vim
+++ b/runtime/syntax/aml.vim
@@ -9,11 +9,8 @@
 "		    of [], in order to avoid -read highlighted,
 "		    or [quote] strings highlighted
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -123,35 +120,27 @@ syn region amlSkip matchgroup=amlOutput 
 syn region amlSkip matchgroup=amlOutput start="&type" end="$" contains=amlVar
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_aml_syntax_inits")
-  if version < 508
-    let did_aml_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink amlComment	Comment
-  HiLink amlNumber	Number
-  HiLink amlQuote	String
-  HiLink amlVar	Identifier
-  HiLink amlVar2	Identifier
-  HiLink amlFunction	PreProc
-  HiLink amlDir	Statement
-  HiLink amlDir2	Statement
-  HiLink amlDirSym	Statement
-  HiLink amlOutput	Statement
-  HiLink amlArcCmd	ModeMsg
-  HiLink amlFormedCmd	amlArcCmd
-  HiLink amlTabCmd	amlArcCmd
-  HiLink amlInfoCmd	amlArcCmd
-  HiLink amlVtrCmd	amlArcCmd
-  HiLink amlFormed	amlArcCmd
-  HiLink amlTab	amlArcCmd
+HiLink amlComment	Comment
+HiLink amlNumber	Number
+HiLink amlQuote	String
+HiLink amlVar	Identifier
+HiLink amlVar2	Identifier
+HiLink amlFunction	PreProc
+HiLink amlDir	Statement
+HiLink amlDir2	Statement
+HiLink amlDirSym	Statement
+HiLink amlOutput	Statement
+HiLink amlArcCmd	ModeMsg
+HiLink amlFormedCmd	amlArcCmd
+HiLink amlTabCmd	amlArcCmd
+HiLink amlInfoCmd	amlArcCmd
+HiLink amlVtrCmd	amlArcCmd
+HiLink amlFormed	amlArcCmd
+HiLink amlTab	amlArcCmd
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "aml"
diff --git a/runtime/syntax/ampl.vim b/runtime/syntax/ampl.vim
--- a/runtime/syntax/ampl.vim
+++ b/runtime/syntax/ampl.vim
@@ -3,9 +3,8 @@
 " Last Change:  2003 May 11
 
 
-if version < 600
- syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
  finish
 endif
 
@@ -115,33 +114,26 @@ syn keyword amplTodo contained	 TODO FIX
 
 
 
-if version >= 508 || !exists("did_ampl_syntax_inits")
-  if version < 508
-    let did_ampl_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting. Can be overridden later.
-  HiLink amplEntityKeyword	Keyword
-  HiLink amplType		Type
-  HiLink amplStatement		Statement
-  HiLink amplOperators		Operator
-  HiLink amplBasicOperators	Operator
-  HiLink amplConditional	Conditional
-  HiLink amplRepeat		Repeat
-  HiLink amplStrings		String
-  HiLink amplNumerics		Number
-  HiLink amplSetFunction	Function
-  HiLink amplBuiltInFunction	Function
-  HiLink amplRandomGenerator	Function
-  HiLink amplComment		Comment
-  HiLink amplDotSuffix		Special
-  HiLink amplPiecewise		Special
+" The default methods for highlighting. Can be overridden later.
+HiLink amplEntityKeyword	Keyword
+HiLink amplType		Type
+HiLink amplStatement		Statement
+HiLink amplOperators		Operator
+HiLink amplBasicOperators	Operator
+HiLink amplConditional	Conditional
+HiLink amplRepeat		Repeat
+HiLink amplStrings		String
+HiLink amplNumerics		Number
+HiLink amplSetFunction	Function
+HiLink amplBuiltInFunction	Function
+HiLink amplRandomGenerator	Function
+HiLink amplComment		Comment
+HiLink amplDotSuffix		Special
+HiLink amplPiecewise		Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "ampl"
 
diff --git a/runtime/syntax/antlr.vim b/runtime/syntax/antlr.vim
--- a/runtime/syntax/antlr.vim
+++ b/runtime/syntax/antlr.vim
@@ -4,11 +4,8 @@
 " LastChange:	02 May 2001
 " Original:	Comes from JavaCC.vim
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-   syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
    finish
 endif
 
@@ -18,12 +15,8 @@ endif
 " Those files usually have the extension  *.jj
 
 " source the java.vim file
-if version < 600
-   so <sfile>:p:h/java.vim
-else
-   runtime! syntax/java.vim
-   unlet b:current_syntax
-endif
+runtime! syntax/java.vim
+unlet b:current_syntax
 
 "remove catching errors caused by wrong parenthesis (does not work in antlr
 "files) (first define them in case they have not been defined in java)
@@ -53,17 +46,10 @@ syn match antlrSep "[|:]\|\.\."
 syn keyword antlrActionToken TOKEN SKIP MORE SPECIAL_TOKEN
 syn keyword antlrError DEBUG IGNORE_IN_BNF
 
-if version >= 508 || !exists("did_antlr_syntax_inits")
-   if version < 508
-      let did_antlr_syntax_inits = 1
-      command -nargs=+ HiLink hi link <args>
-   else
-      command -nargs=+ HiLink hi def link <args>
-   endif
-   HiLink antlrSep Statement
-   HiLink antlrPackages Statement
-  delcommand HiLink
-endif
+command -nargs=+ HiLink hi def link <args>
+HiLink antlrSep Statement
+HiLink antlrPackages Statement
+delcommand HiLink
 
 let b:current_syntax = "antlr"
 
diff --git a/runtime/syntax/apache.vim b/runtime/syntax/apache.vim
--- a/runtime/syntax/apache.vim
+++ b/runtime/syntax/apache.vim
@@ -9,13 +9,9 @@
 "		make it really linewise?
 "		+ add `display' where appropriate
 
-" Setup
-if version >= 600
-	if exists("b:current_syntax")
-		finish
-	endif
-else
-	syntax clear
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+	finish
 endif
 
 syn case ignore
@@ -178,37 +174,30 @@ syn match apacheSection "<\/\=\(<IfVersi
 syn keyword apacheDeclaration VirtualDocumentRoot VirtualDocumentRootIP VirtualScriptAlias VirtualScriptAliasIP
 
 " Define the default highlighting
-if version >= 508 || !exists("did_apache_syntax_inits")
-	if version < 508
-		let did_apache_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink apacheAllowOverride apacheDeclaration
-	HiLink apacheAllowOverrideValue apacheOption
-	HiLink apacheAuthType apacheDeclaration
-	HiLink apacheAuthTypeValue apacheOption
-	HiLink apacheOptionOption apacheOption
-	HiLink apacheDeclaration Function
-	HiLink apacheAnything apacheOption
-	HiLink apacheOption Number
-	HiLink apacheComment Comment
-	HiLink apacheFixme Todo
-	HiLink apacheLimitSectionKeyword apacheLimitSection
-	HiLink apacheLimitSection apacheSection
-	HiLink apacheSection Label
-	HiLink apacheMethodOption Type
-	HiLink apacheAllowDeny Include
-	HiLink apacheAllowDenyValue Identifier
-	HiLink apacheOrder Special
-	HiLink apacheOrderValue String
-	HiLink apacheString String
-	HiLink apacheError Error
-	HiLink apacheUserID Number
+HiLink apacheAllowOverride apacheDeclaration
+HiLink apacheAllowOverrideValue apacheOption
+HiLink apacheAuthType apacheDeclaration
+HiLink apacheAuthTypeValue apacheOption
+HiLink apacheOptionOption apacheOption
+HiLink apacheDeclaration Function
+HiLink apacheAnything apacheOption
+HiLink apacheOption Number
+HiLink apacheComment Comment
+HiLink apacheFixme Todo
+HiLink apacheLimitSectionKeyword apacheLimitSection
+HiLink apacheLimitSection apacheSection
+HiLink apacheSection Label
+HiLink apacheMethodOption Type
+HiLink apacheAllowDeny Include
+HiLink apacheAllowDenyValue Identifier
+HiLink apacheOrder Special
+HiLink apacheOrderValue String
+HiLink apacheString String
+HiLink apacheError Error
+HiLink apacheUserID Number
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "apache"
diff --git a/runtime/syntax/apachestyle.vim b/runtime/syntax/apachestyle.vim
--- a/runtime/syntax/apachestyle.vim
+++ b/runtime/syntax/apachestyle.vim
@@ -20,11 +20,8 @@
 "		</SubSection>
 "	</Section>
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -41,25 +38,17 @@ syn match  apTagOption	contained / [-\/_
 syn match  apTagError	contained /[^>]</ms=s+1
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_apachestyle_syn_inits")
-  if version < 508
-    let did_apachestyle_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink apComment	Comment
-  HiLink apOption	Keyword
-  "HiLink apLastValue	Identifier		ugly?
-  HiLink apTag		Special
-  HiLink apTagOption	Identifier
-  HiLink apTagError	Error
+HiLink apComment	Comment
+HiLink apOption	Keyword
+"HiLink apLastValue	Identifier		ugly?
+HiLink apTag		Special
+HiLink apTagOption	Identifier
+HiLink apTagError	Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "apachestyle"
 " vim: ts=8
diff --git a/runtime/syntax/aptconf.vim b/runtime/syntax/aptconf.vim
--- a/runtime/syntax/aptconf.vim
+++ b/runtime/syntax/aptconf.vim
@@ -3,12 +3,9 @@
 " Maintainer:	Yann Amar <quidame@poivron.org>
 " Last Change:	2015 Dec 22
 
-" For version 5.x: Clear all syntax items
-" For version 6.x and 7.x: Quit when a syntax file was already loaded
+" quit when a syntax file was already loaded
 if !exists("main_syntax")
-  if version < 600
-    syntax clear
-  elseif exists("b:current_syntax")
+  if exists("b:current_syntax")
     finish
   endif
   let main_syntax = 'aptconf'
diff --git a/runtime/syntax/arduino.vim b/runtime/syntax/arduino.vim
--- a/runtime/syntax/arduino.vim
+++ b/runtime/syntax/arduino.vim
@@ -10,20 +10,13 @@
 
 " Thanks to Rik, Erik Nomitch, Adam Obeng and Graeme Cross for helpful feedback!
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " Read the C syntax to start with
-if version < 600
-  so <sfile>:p:h/cpp.vim
-else
-  runtime! syntax/cpp.vim
-endif
+runtime! syntax/cpp.vim
 
 syn keyword arduinoConstant HIGH LOW INPUT OUTPUT
 syn keyword arduinoConstant DEC BIN HEX OCT BYTE
diff --git a/runtime/syntax/asm.vim b/runtime/syntax/asm.vim
--- a/runtime/syntax/asm.vim
+++ b/runtime/syntax/asm.vim
@@ -7,11 +7,8 @@
 
 " Thanks to Ori Avtalion for feedback on the comment markers!
 
-" For version 5.x: Clear all syntax items
-" For version 6.0 and later: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -103,37 +100,29 @@ syn match asmDirective		"\.[A-Za-z][0-9A
 syn case match
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_asm_syntax_inits")
-  if version < 508
-    let did_asm_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+" The default methods for highlighting.  Can be overridden later
+HiLink asmSection	Special
+HiLink asmLabel	Label
+HiLink asmComment	Comment
+HiLink asmTodo	Todo
+HiLink asmDirective	Statement
 
-  " The default methods for highlighting.  Can be overridden later
-  HiLink asmSection	Special
-  HiLink asmLabel	Label
-  HiLink asmComment	Comment
-  HiLink asmTodo	Todo
-  HiLink asmDirective	Statement
-
-  HiLink asmInclude	Include
-  HiLink asmCond	PreCondit
-  HiLink asmMacro	Macro
+HiLink asmInclude	Include
+HiLink asmCond	PreCondit
+HiLink asmMacro	Macro
 
-  HiLink hexNumber	Number
-  HiLink decNumber	Number
-  HiLink octNumber	Number
-  HiLink binNumber	Number
+HiLink hexNumber	Number
+HiLink decNumber	Number
+HiLink octNumber	Number
+HiLink binNumber	Number
 
-  HiLink asmIdentifier	Identifier
-  HiLink asmType	Type
+HiLink asmIdentifier	Identifier
+HiLink asmType	Type
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "asm"
 
diff --git a/runtime/syntax/asm68k.vim b/runtime/syntax/asm68k.vim
--- a/runtime/syntax/asm68k.vim
+++ b/runtime/syntax/asm68k.vim
@@ -8,11 +8,8 @@
 " Feel free to contribute...
 "
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -328,63 +325,55 @@ syn match asm68kDirective	"\<XREF\(\.S\)
 syn case match
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_asm68k_syntax_inits")
-  if version < 508
-    let did_asm68k_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting.  Can be overridden later
-  " Comment Constant Error Identifier PreProc Special Statement Todo Type
-  "
-  " Constant		Boolean Character Number String
-  " Identifier		Function
-  " PreProc		Define Include Macro PreCondit
-  " Special		Debug Delimiter SpecialChar SpecialComment Tag
-  " Statement		Conditional Exception Keyword Label Operator Repeat
-  " Type		StorageClass Structure Typedef
+" The default methods for highlighting.  Can be overridden later
+" Comment Constant Error Identifier PreProc Special Statement Todo Type
+"
+" Constant		Boolean Character Number String
+" Identifier		Function
+" PreProc		Define Include Macro PreCondit
+" Special		Debug Delimiter SpecialChar SpecialComment Tag
+" Statement		Conditional Exception Keyword Label Operator Repeat
+" Type		StorageClass Structure Typedef
 
-  HiLink asm68kComment		Comment
-  HiLink asm68kTodo		Todo
+HiLink asm68kComment		Comment
+HiLink asm68kTodo		Todo
 
-  HiLink hexNumber		Number		" Constant
-  HiLink octNumber		Number		" Constant
-  HiLink binNumber		Number		" Constant
-  HiLink decNumber		Number		" Constant
-  HiLink floatNumber		Number		" Constant
-  HiLink floatExponent		Number		" Constant
-  HiLink floatE			SpecialChar	" Statement
-  "HiLink floatE		Number		" Constant
+HiLink hexNumber		Number		" Constant
+HiLink octNumber		Number		" Constant
+HiLink binNumber		Number		" Constant
+HiLink decNumber		Number		" Constant
+HiLink floatNumber		Number		" Constant
+HiLink floatExponent		Number		" Constant
+HiLink floatE			SpecialChar	" Statement
+"HiLink floatE		Number		" Constant
 
-  HiLink asm68kImmediate	SpecialChar	" Statement
-  "HiLink asm68kSymbol		Constant
+HiLink asm68kImmediate	SpecialChar	" Statement
+"HiLink asm68kSymbol		Constant
 
-  HiLink asm68kString		String		" Constant
-  HiLink asm68kCharError	Error
-  HiLink asm68kStringError	Error
+HiLink asm68kString		String		" Constant
+HiLink asm68kCharError	Error
+HiLink asm68kStringError	Error
 
-  HiLink asm68kReg		Identifier
-  HiLink asm68kOperator		Identifier
+HiLink asm68kReg		Identifier
+HiLink asm68kOperator		Identifier
 
-  HiLink asm68kInclude		Include		" PreProc
-  HiLink asm68kMacro		Macro		" PreProc
-  HiLink asm68kMacroParam	Keyword		" Statement
+HiLink asm68kInclude		Include		" PreProc
+HiLink asm68kMacro		Macro		" PreProc
+HiLink asm68kMacroParam	Keyword		" Statement
 
-  HiLink asm68kDirective	Special
-  HiLink asm68kPreCond		Special
+HiLink asm68kDirective	Special
+HiLink asm68kPreCond		Special
 
 
-  HiLink asm68kOpcode		Statement
-  HiLink asm68kCond		Conditional	" Statement
-  HiLink asm68kRepeat		Repeat		" Statement
+HiLink asm68kOpcode		Statement
+HiLink asm68kCond		Conditional	" Statement
+HiLink asm68kRepeat		Repeat		" Statement
 
-  HiLink asm68kLabel		Type
-  delcommand HiLink
-endif
+HiLink asm68kLabel		Type
+delcommand HiLink
 
 let b:current_syntax = "asm68k"
 
diff --git a/runtime/syntax/asmh8300.vim b/runtime/syntax/asmh8300.vim
--- a/runtime/syntax/asmh8300.vim
+++ b/runtime/syntax/asmh8300.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Kevin Dahlhausen <kdahlhaus@yahoo.com>
 " Last Change:	2002 Sep 19
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -52,33 +49,21 @@ syn case match
 
 
 " Read the general asm syntax
-if version < 600
-  source <sfile>:p:h/asm.vim
-else
-  runtime! syntax/asm.vim
-endif
+runtime! syntax/asm.vim
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_hitachi_syntax_inits")
-  if version < 508
-    let did_hitachi_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink asmOpcode  Statement
+HiLink asmRegister  Identifier
 
-  HiLink asmOpcode  Statement
-  HiLink asmRegister  Identifier
+" My default-color overrides:
+"hi asmOpcode ctermfg=yellow
+"hi asmReg	ctermfg=lightmagenta
 
-  " My default-color overrides:
-  "hi asmOpcode ctermfg=yellow
-  "hi asmReg	ctermfg=lightmagenta
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "asmh8300"
 
diff --git a/runtime/syntax/asn.vim b/runtime/syntax/asn.vim
--- a/runtime/syntax/asn.vim
+++ b/runtime/syntax/asn.vim
@@ -4,11 +4,8 @@
 " URL:		http://www.fleiner.com/vim/syntax/asn.vim
 " Last Change:	2012 Oct 05
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -50,34 +47,26 @@ syn match asnBraces     "[{}]"
 syn sync ccomment asnComment
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_asn_syn_inits")
-  if version < 508
-    let did_asn_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink asnDefinition	Function
-  HiLink asnBraces		Function
-  HiLink asnStructure	Statement
-  HiLink asnBoolValue	Boolean
-  HiLink asnSpecial		Special
-  HiLink asnString		String
-  HiLink asnCharacter	Character
-  HiLink asnSpecialCharacter	asnSpecial
-  HiLink asnNumber		asnValue
-  HiLink asnComment		Comment
-  HiLink asnLineComment	asnComment
-  HiLink asnType		Type
-  HiLink asnTypeInfo		PreProc
-  HiLink asnValue		Number
-  HiLink asnExternal		Include
-  HiLink asnTagModifier	Function
-  HiLink asnFieldOption	Type
-  delcommand HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink asnDefinition	Function
+HiLink asnBraces		Function
+HiLink asnStructure	Statement
+HiLink asnBoolValue	Boolean
+HiLink asnSpecial		Special
+HiLink asnString		String
+HiLink asnCharacter	Character
+HiLink asnSpecialCharacter	asnSpecial
+HiLink asnNumber		asnValue
+HiLink asnComment		Comment
+HiLink asnLineComment	asnComment
+HiLink asnType		Type
+HiLink asnTypeInfo		PreProc
+HiLink asnValue		Number
+HiLink asnExternal		Include
+HiLink asnTagModifier	Function
+HiLink asnFieldOption	Type
+delcommand HiLink
 
 let &cpo = s:cpo_save
 unlet s:cpo_save
diff --git a/runtime/syntax/aspperl.vim b/runtime/syntax/aspperl.vim
--- a/runtime/syntax/aspperl.vim
+++ b/runtime/syntax/aspperl.vim
@@ -4,11 +4,8 @@
 " URL:		http://nim.dhs.org/~edh/aspperl.vim
 " Last Change:	2001 May 09
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -16,14 +13,9 @@ if !exists("main_syntax")
   let main_syntax = 'perlscript'
 endif
 
-if version < 600
-  so <sfile>:p:h/html.vim
-  syn include @AspPerlScript <sfile>:p:h/perl.vim
-else
-  runtime! syntax/html.vim
-  unlet b:current_syntax
-  syn include @AspPerlScript syntax/perl.vim
-endif
+runtime! syntax/html.vim
+unlet b:current_syntax
+syn include @AspPerlScript syntax/perl.vim
 
 syn cluster htmlPreproc add=AspPerlScriptInsideHtmlTags
 
diff --git a/runtime/syntax/aspvbs.vim b/runtime/syntax/aspvbs.vim
--- a/runtime/syntax/aspvbs.vim
+++ b/runtime/syntax/aspvbs.vim
@@ -11,10 +11,8 @@
 " Thanks to Dean Hall <hall@apt7.com> for testing the use of classes in
 " VBScripts which I've been too scared to do.
 
-" Quit when a syntax file was already loaded
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -22,11 +20,7 @@ if !exists("main_syntax")
   let main_syntax = 'aspvbs'
 endif
 
-if version < 600
-  source <sfile>:p:h/html.vim
-else
-  runtime! syntax/html.vim
-endif
+runtime! syntax/html.vim
 unlet b:current_syntax
 
 syn cluster htmlPreProc add=AspVBScriptInsideHtmlTags
@@ -163,31 +157,23 @@ syn sync match htmlHighlight grouphere h
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_aspvbs_syn_inits")
-  if version < 508
-    let did_aspvbs_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  "HiLink AspVBScript		Special
-  HiLink AspVBSLineNumber	Comment
-  HiLink AspVBSNumber		Number
-  HiLink AspVBSError		Error
-  HiLink AspVBSStatement	Statement
-  HiLink AspVBSString		String
-  HiLink AspVBSComment		Comment
-  HiLink AspVBSTodo		Todo
-  HiLink AspVBSFunction		Identifier
-  HiLink AspVBSMethods		PreProc
-  HiLink AspVBSEvents		Special
-  HiLink AspVBSTypeSpecifier	Type
+"HiLink AspVBScript		Special
+HiLink AspVBSLineNumber	Comment
+HiLink AspVBSNumber		Number
+HiLink AspVBSError		Error
+HiLink AspVBSStatement	Statement
+HiLink AspVBSString		String
+HiLink AspVBSComment		Comment
+HiLink AspVBSTodo		Todo
+HiLink AspVBSFunction		Identifier
+HiLink AspVBSMethods		PreProc
+HiLink AspVBSEvents		Special
+HiLink AspVBSTypeSpecifier	Type
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "aspvbs"
 
diff --git a/runtime/syntax/asterisk.vim b/runtime/syntax/asterisk.vim
--- a/runtime/syntax/asterisk.vim
+++ b/runtime/syntax/asterisk.vim
@@ -5,10 +5,9 @@
 " Updated for 1.2 by Tilghman Lesher (Corydon76)
 " Last Change:	2015 Feb 27
 " version 0.4
-"
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -57,42 +56,35 @@ syn match       asteriskSetting         
 syn match       asteriskSetting         "^host\s*=\s*\(dynamic\|\(\d\{1,3}\.\d\{1,3}\.\d\{1,3}\.\d\{1,3}\)\|\([[:alnum:]][[:alnum:]\-\.]*\.[[:alpha:]]{2,10}\)\)" contains=asteriskIP,asteriskHostname
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_conf_syntax_inits")
-  if version < 508
-    let did_conf_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink        asteriskComment		Comment
-  HiLink        asteriskExten		String
-  HiLink        asteriskContext         Preproc
-  HiLink        asteriskPattern         Type
-  HiLink        asteriskApp             Statement
-  HiLink        asteriskInclude         Preproc
-  HiLink        asteriskIncludeBad	Error
-  HiLink        asteriskPriority        Preproc
-  HiLink        asteriskLabel           Type
-  HiLink        asteriskVar             String
-  HiLink        asteriskVarLen          Function
-  HiLink        asteriskExp             Type
-  HiLink        asteriskCodecsPermit    Preproc
-  HiLink        asteriskCodecs          String
-  HiLink        asteriskType            Statement
-  HiLink        asteriskTypeType        Type
-  HiLink        asteriskAuth            String
-  HiLink        asteriskAuthType        Type
-  HiLink        asteriskIPRange         Identifier
-  HiLink        asteriskIP              Identifier
-  HiLink        asteriskPort            Identifier
-  HiLink        asteriskHostname        Identifier
-  HiLink        asteriskSetting         Statement
-  HiLink        asteriskError           Error
- delcommand HiLink
-endif
+HiLink        asteriskComment		Comment
+HiLink        asteriskExten		String
+HiLink        asteriskContext         Preproc
+HiLink        asteriskPattern         Type
+HiLink        asteriskApp             Statement
+HiLink        asteriskInclude         Preproc
+HiLink        asteriskIncludeBad	Error
+HiLink        asteriskPriority        Preproc
+HiLink        asteriskLabel           Type
+HiLink        asteriskVar             String
+HiLink        asteriskVarLen          Function
+HiLink        asteriskExp             Type
+HiLink        asteriskCodecsPermit    Preproc
+HiLink        asteriskCodecs          String
+HiLink        asteriskType            Statement
+HiLink        asteriskTypeType        Type
+HiLink        asteriskAuth            String
+HiLink        asteriskAuthType        Type
+HiLink        asteriskIPRange         Identifier
+HiLink        asteriskIP              Identifier
+HiLink        asteriskPort            Identifier
+HiLink        asteriskHostname        Identifier
+HiLink        asteriskSetting         Statement
+HiLink        asteriskError           Error
+delcommand HiLink
+
 let b:current_syntax = "asterisk" 
 " vim: ts=8 sw=2
 
diff --git a/runtime/syntax/asteriskvm.vim b/runtime/syntax/asteriskvm.vim
--- a/runtime/syntax/asteriskvm.vim
+++ b/runtime/syntax/asteriskvm.vim
@@ -3,10 +3,9 @@
 " Maintainer: Tilghman Lesher (Corydon76)
 " Last Change:	2006 Mar 21
 " version 0.2
-"
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -33,28 +32,20 @@ syn match       mailboxEmail            
 syn match       comma                   "[,|]" contained
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-:if version >= 508 || !exists("did_conf_syntax_inits")
-  if version < 508
-    let did_conf_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink        asteriskvmComment Comment
-  HiLink        asteriskvmContext         Identifier
-  HiLink        asteriskvmZone            Type
-  HiLink        zoneName                String
-  HiLink        zoneDef                 String
-  HiLink        asteriskvmSetting         Type
-  HiLink        asteriskvmSettingBool     Type
+HiLink        asteriskvmComment Comment
+HiLink        asteriskvmContext         Identifier
+HiLink        asteriskvmZone            Type
+HiLink        zoneName                String
+HiLink        zoneDef                 String
+HiLink        asteriskvmSetting         Type
+HiLink        asteriskvmSettingBool     Type
 
-  HiLink        asteriskvmMailbox         Statement
-  HiLink        mailboxEmail            String
- delcommand HiLink
-endif
+HiLink        asteriskvmMailbox         Statement
+HiLink        mailboxEmail            String
+delcommand HiLink
 
 let b:current_syntax = "asteriskvm"
 
diff --git a/runtime/syntax/atlas.vim b/runtime/syntax/atlas.vim
--- a/runtime/syntax/atlas.vim
+++ b/runtime/syntax/atlas.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Inaki Saez <jisaez@sfe.indra.es>
 " Last Change:	2001 May 09
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -61,37 +58,29 @@ syn sync maxlines=100
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_atlas_syntax_inits")
-  if version < 508
-    let did_atlas_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink atlasConditional	Conditional
-  HiLink atlasRepeat		Repeat
-  HiLink atlasStatement	Statement
-  HiLink atlasNumber		Number
-  HiLink atlasHexNumber	Number
-  HiLink atlasOctalNumber	Number
-  HiLink atlasBinNumber	Number
-  HiLink atlasDecimalNumber	Float
-  HiLink atlasFormatString	String
-  HiLink atlasString		String
-  HiLink atlasComment		Comment
-  HiLink atlasComment2		Comment
-  HiLink atlasInclude		Include
-  HiLink atlasDefine		Macro
-  HiLink atlasReserved		PreCondit
-  HiLink atlasStorageClass	StorageClass
-  HiLink atlasIdentifier	NONE
-  HiLink atlasSpecial		Special
+HiLink atlasConditional	Conditional
+HiLink atlasRepeat		Repeat
+HiLink atlasStatement	Statement
+HiLink atlasNumber		Number
+HiLink atlasHexNumber	Number
+HiLink atlasOctalNumber	Number
+HiLink atlasBinNumber	Number
+HiLink atlasDecimalNumber	Float
+HiLink atlasFormatString	String
+HiLink atlasString		String
+HiLink atlasComment		Comment
+HiLink atlasComment2		Comment
+HiLink atlasInclude		Include
+HiLink atlasDefine		Macro
+HiLink atlasReserved		PreCondit
+HiLink atlasStorageClass	StorageClass
+HiLink atlasIdentifier	NONE
+HiLink atlasSpecial		Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "atlas"
 
diff --git a/runtime/syntax/automake.vim b/runtime/syntax/automake.vim
--- a/runtime/syntax/automake.vim
+++ b/runtime/syntax/automake.vim
@@ -18,18 +18,12 @@
 " EXTRA_SOURCES.
 
 " Standard syntax initialization
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+if exists("b:current_syntax")
   finish
 endif
 
 " Read the Makefile syntax to start with
-if version < 600
-  source <sfile>:p:h/make.vim
-else
-  runtime! syntax/make.vim
-endif
+runtime! syntax/make.vim
 
 syn match automakePrimary "^\w\+\(_PROGRAMS\|_LIBRARIES\|_LISP\|_PYTHON\|_JAVA\|_SCRIPTS\|_DATA\|_HEADERS\|_MANS\|_TEXINFOS\|_LTLIBRARIES\)\s*\ze+\=="
 syn match automakePrimary "^TESTS\s*\ze+\=="me=e-1
@@ -59,34 +53,26 @@ syn region  automakeMakeSString start=+'
 syn region  automakeMakeBString start=+`+  skip=+\\`+  end=+`+  contains=makeIdent,makeSString,makeDString,makeNextLine,automakeSubstitution
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_automake_syntax_inits")
-  if version < 508
-    let did_automake_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink automakePrimary     Statement
-  HiLink automakeSecondary   Type
-  HiLink automakeExtra       Special
-  HiLink automakeOptions     Special
-  HiLink automakeClean       Special
-  HiLink automakeSubdirs     Statement
-  HiLink automakeConditional PreProc
-  HiLink automakeSubst       PreProc
-  HiLink automakeComment1    makeComment
-  HiLink automakeComment2    makeComment
-  HiLink automakeMakeError   makeError
-  HiLink automakeBadSubst    makeError
-  HiLink automakeMakeDString makeDString
-  HiLink automakeMakeSString makeSString
-  HiLink automakeMakeBString makeBString
+HiLink automakePrimary     Statement
+HiLink automakeSecondary   Type
+HiLink automakeExtra       Special
+HiLink automakeOptions     Special
+HiLink automakeClean       Special
+HiLink automakeSubdirs     Statement
+HiLink automakeConditional PreProc
+HiLink automakeSubst       PreProc
+HiLink automakeComment1    makeComment
+HiLink automakeComment2    makeComment
+HiLink automakeMakeError   makeError
+HiLink automakeBadSubst    makeError
+HiLink automakeMakeDString makeDString
+HiLink automakeMakeSString makeSString
+HiLink automakeMakeBString makeBString
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "automake"
 
diff --git a/runtime/syntax/ave.vim b/runtime/syntax/ave.vim
--- a/runtime/syntax/ave.vim
+++ b/runtime/syntax/ave.vim
@@ -11,11 +11,8 @@
 " I use some technologies to automatically load avenue scripts
 " into ArcView.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -59,34 +56,26 @@ syn match aveTypos	"=="
 syn match aveTypos	"!="
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting+yet
-if version >= 508 || !exists("did_ave_syn_inits")
-  if version < 508
-	let did_ave_syn_inits = 1
-	command -nargs=+ HiLink hi link <args>
-  else
-	command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting+yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink aveStatement		Statement
+HiLink aveStatement		Statement
 
-  HiLink aveString		String
-  HiLink aveNumber		Number
+HiLink aveString		String
+HiLink aveNumber		Number
 
-  HiLink aveFixVariables	Special
-  HiLink aveVariables		Identifier
-  HiLink globalVariables	Special
-  HiLink aveConst		Special
+HiLink aveFixVariables	Special
+HiLink aveVariables		Identifier
+HiLink globalVariables	Special
+HiLink aveConst		Special
 
-  HiLink aveClassMethods	Function
+HiLink aveClassMethods	Function
 
-  HiLink aveOperator		Operator
-  HiLink aveComment		Comment
+HiLink aveOperator		Operator
+HiLink aveComment		Comment
 
-  HiLink aveTypos		Error
+HiLink aveTypos		Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "ave"
diff --git a/runtime/syntax/ayacc.vim b/runtime/syntax/ayacc.vim
--- a/runtime/syntax/ayacc.vim
+++ b/runtime/syntax/ayacc.vim
@@ -6,21 +6,14 @@
 " Comment:	     Replaced sourcing c.vim file by ada.vim and rename yacc*
 "		in ayacc*
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-   syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
    finish
 endif
 
 " Read the Ada syntax to start with
-if version < 600
-   so <sfile>:p:h/ada.vim
-else
-   runtime! syntax/ada.vim
-   unlet b:current_syntax
-endif
+runtime! syntax/ada.vim
+unlet b:current_syntax
 
 let s:cpo_save = &cpo
 set cpo&vim
@@ -54,35 +47,28 @@ syn match	ayaccSep	"^[ \t]*%}"
 syn match	ayaccCurlyError	"[{}]"
 syn region	ayaccAction	matchgroup=ayaccCurly start="{" end="}" contains=ALLBUT,@ayaccActionGroup
 
-if version >= 508 || !exists("did_ayacc_syntax_inits")
-   if version < 508
-      let did_ayacc_syntax_inits = 1
-      command -nargs=+ HiLink hi link <args>
-   else
-      command -nargs=+ HiLink hi def link <args>
-   endif
+command -nargs=+ HiLink hi def link <args>
 
-  " Internal ayacc highlighting links
-  HiLink ayaccBrkt	ayaccStmt
-  HiLink ayaccKey	ayaccStmt
-  HiLink ayaccOper	ayaccStmt
-  HiLink ayaccUnionStart	ayaccKey
+" Internal ayacc highlighting links
+HiLink ayaccBrkt	ayaccStmt
+HiLink ayaccKey	ayaccStmt
+HiLink ayaccOper	ayaccStmt
+HiLink ayaccUnionStart	ayaccKey
 
-  " External ayacc highlighting links
-  HiLink ayaccCurly	Delimiter
-  HiLink ayaccCurlyError	Error
-  HiLink ayaccDefinition	Function
-  HiLink ayaccDelim	Function
-  HiLink ayaccKeyActn	Special
-  HiLink ayaccSectionSep	Todo
-  HiLink ayaccSep	Delimiter
-  HiLink ayaccStmt	Statement
-  HiLink ayaccType	Type
+" External ayacc highlighting links
+HiLink ayaccCurly	Delimiter
+HiLink ayaccCurlyError	Error
+HiLink ayaccDefinition	Function
+HiLink ayaccDelim	Function
+HiLink ayaccKeyActn	Special
+HiLink ayaccSectionSep	Todo
+HiLink ayaccSep	Delimiter
+HiLink ayaccStmt	Statement
+HiLink ayaccType	Type
 
-  " since Bram doesn't like my Delimiter :|
-  HiLink Delimiter	Type
-  delcommand HiLink
-endif
+" since Bram doesn't like my Delimiter :|
+HiLink Delimiter	Type
+delcommand HiLink
 
 let b:current_syntax = "ayacc"
 
diff --git a/runtime/syntax/b.vim b/runtime/syntax/b.vim
--- a/runtime/syntax/b.vim
+++ b/runtime/syntax/b.vim
@@ -5,11 +5,8 @@
 " LastChange:	8 Dec 2007
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-   syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
    finish
 endif
 
@@ -69,58 +66,50 @@ syn region bPreProc		start="^\s*#\s*\(pr
 syn sync ccomment bComment minlines=10
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
+" Only when an item doesn't have highlighting yet
 
-if version >= 508 || !exists("did_b_syntax_inits")
-   if version < 508
-      let did_b_syntax_inits = 1
-      command -nargs=+ HiLink hi link <args>
-   else
-      command -nargs=+ HiLink hi def link <args>
-   endif
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting.  Can be overridden later
-  HiLink bLabel	Label
-  HiLink bUserLabel	Label
-  HiLink bConditional	Conditional
-  HiLink bRepeat	Repeat
-  HiLink bLogic	Special
-  HiLink bCharacter	Character
-  HiLink bSpecialCharacter bSpecial
-  HiLink bNumber	Number
-  HiLink bFloat	Float
-  HiLink bOctalError	bError
-  HiLink bParenError	bError
+" The default methods for highlighting.  Can be overridden later
+HiLink bLabel	Label
+HiLink bUserLabel	Label
+HiLink bConditional	Conditional
+HiLink bRepeat	Repeat
+HiLink bLogic	Special
+HiLink bCharacter	Character
+HiLink bSpecialCharacter bSpecial
+HiLink bNumber	Number
+HiLink bFloat	Float
+HiLink bOctalError	bError
+HiLink bParenError	bError
 " HiLink bInParen	bError
-  HiLink bCommentError	bError
-  HiLink bBoolean	Identifier
-  HiLink bConstant	Identifier
-  HiLink bGuard	Identifier
-  HiLink bOperator	Operator
-  HiLink bKeywords	Operator
-  HiLink bOps		Identifier
-  HiLink bStructure	Structure
-  HiLink bStorageClass	StorageClass
-  HiLink bInclude	Include
-  HiLink bPreProc	PreProc
-  HiLink bDefine	Macro
-  HiLink bIncluded	bString
-  HiLink bError	Error
-  HiLink bStatement	Statement
-  HiLink bPreCondit	PreCondit
-  HiLink bType		Type
-  HiLink bCommentError	bError
-  HiLink bCommentString bString
-  HiLink bComment2String bString
-  HiLink bCommentSkip	bComment
-  HiLink bString	String
-  HiLink bComment	Comment
-  HiLink bSpecial	SpecialChar
-  HiLink bTodo		Todo
-  "hi link bIdentifier	Identifier
-  delcommand HiLink
-endif
+HiLink bCommentError	bError
+HiLink bBoolean	Identifier
+HiLink bConstant	Identifier
+HiLink bGuard	Identifier
+HiLink bOperator	Operator
+HiLink bKeywords	Operator
+HiLink bOps		Identifier
+HiLink bStructure	Structure
+HiLink bStorageClass	StorageClass
+HiLink bInclude	Include
+HiLink bPreProc	PreProc
+HiLink bDefine	Macro
+HiLink bIncluded	bString
+HiLink bError	Error
+HiLink bStatement	Statement
+HiLink bPreCondit	PreCondit
+HiLink bType		Type
+HiLink bCommentError	bError
+HiLink bCommentString bString
+HiLink bComment2String bString
+HiLink bCommentSkip	bComment
+HiLink bString	String
+HiLink bComment	Comment
+HiLink bSpecial	SpecialChar
+HiLink bTodo		Todo
+"hi link bIdentifier	Identifier
+delcommand HiLink
 
 let b:current_syntax = "b"
 
diff --git a/runtime/syntax/baan.vim b/runtime/syntax/baan.vim
--- a/runtime/syntax/baan.vim
+++ b/runtime/syntax/baan.vim
@@ -4,15 +4,8 @@
 " Originally owned by: Erwin Smit / Her van de Vliert
 " Last change:  v1.17 2006/04/26 10:40:18
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-"
-if version < 600
-  syntax clear
-  if exists("baan_fold")
-	  unlet baan_fold
-  endif
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -1894,40 +1887,32 @@ syn keyword baanBshell bclm.productidlic
 syn keyword baanBshell bclm.set.desktop
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_baan_syn_inits")
-  if version < 508
-    let did_baan_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink baanConditional	Conditional
-  HiLink baan3gl		Statement
-  HiLink baan3glpre		PreProc
-  HiLink baan4gl		Statement
-  HiLink baan4glh		Statement
-  HiLink baansql		Statement
-  HiLink baansqlh		Statement
-  HiLink baanDalHook		Statement
-  HiLink baanNumber		Number
-  HiLink baanString		String
-  HiLink baanOpenStringError	Error
-  HiLink baanConstant		Constant
-  HiLink baanComment		Comment
-  HiLink baanCommenth		Comment
-  HiLink baanUncommented	Comment
-  HiLink baanDLLUsage		Comment
-  HiLink baanFunUsage		Comment
-  HiLink baanIdentifier		Normal
-  HiLink baanBshell		Function
-  HiLink baanType		Type
-  HiLink baanStorageClass	StorageClass
+HiLink baanConditional	Conditional
+HiLink baan3gl		Statement
+HiLink baan3glpre		PreProc
+HiLink baan4gl		Statement
+HiLink baan4glh		Statement
+HiLink baansql		Statement
+HiLink baansqlh		Statement
+HiLink baanDalHook		Statement
+HiLink baanNumber		Number
+HiLink baanString		String
+HiLink baanOpenStringError	Error
+HiLink baanConstant		Constant
+HiLink baanComment		Comment
+HiLink baanCommenth		Comment
+HiLink baanUncommented	Comment
+HiLink baanDLLUsage		Comment
+HiLink baanFunUsage		Comment
+HiLink baanIdentifier		Normal
+HiLink baanBshell		Function
+HiLink baanType		Type
+HiLink baanStorageClass	StorageClass
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "baan"
 
diff --git a/runtime/syntax/basic.vim b/runtime/syntax/basic.vim
--- a/runtime/syntax/basic.vim
+++ b/runtime/syntax/basic.vim
@@ -8,11 +8,8 @@
 " This syntax file not a complete implementation yet.  Send suggestions to the
 " maintainer.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -143,34 +140,26 @@ syn match   basicFilenumber  "#\d\+"
 syn match   basicMathsOperator   "-\|=\|[:<>+\*^/\\]\|AND\|OR"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_basic_syntax_inits")
-  if version < 508
-    let did_basic_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink basicLabel		Label
-  HiLink basicConditional	Conditional
-  HiLink basicRepeat		Repeat
-  HiLink basicLineNumber	Comment
-  HiLink basicNumber		Number
-  HiLink basicError		Error
-  HiLink basicStatement	Statement
-  HiLink basicString		String
-  HiLink basicComment		Comment
-  HiLink basicSpecial		Special
-  HiLink basicTodo		Todo
-  HiLink basicFunction		Identifier
-  HiLink basicTypeSpecifier Type
-  HiLink basicFilenumber basicTypeSpecifier
-  "hi basicMathsOperator term=bold cterm=bold gui=bold
+HiLink basicLabel		Label
+HiLink basicConditional	Conditional
+HiLink basicRepeat		Repeat
+HiLink basicLineNumber	Comment
+HiLink basicNumber		Number
+HiLink basicError		Error
+HiLink basicStatement	Statement
+HiLink basicString		String
+HiLink basicComment		Comment
+HiLink basicSpecial		Special
+HiLink basicTodo		Todo
+HiLink basicFunction		Identifier
+HiLink basicTypeSpecifier Type
+HiLink basicFilenumber basicTypeSpecifier
+"hi basicMathsOperator term=bold cterm=bold gui=bold
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "basic"
 
diff --git a/runtime/syntax/bc.vim b/runtime/syntax/bc.vim
--- a/runtime/syntax/bc.vim
+++ b/runtime/syntax/bc.vim
@@ -5,11 +5,8 @@
 " 		(Dominique Pelle added @Spell)
 " Available on:	www.gjh.sk/~vlado/bc.vim
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -53,27 +50,19 @@ syn match bcParenError			")"
 syn case match
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_bc_syntax_inits")
-  if version < 508
-    let did_bc_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink bcKeyword		Statement
-  HiLink bcType		Type
-  HiLink bcConstant		Constant
-  HiLink bcNumber		Number
-  HiLink bcComment		Comment
-  HiLink bcString		String
-  HiLink bcSpecialChar		SpecialChar
-  HiLink bcParenError		Error
+HiLink bcKeyword		Statement
+HiLink bcType		Type
+HiLink bcConstant		Constant
+HiLink bcNumber		Number
+HiLink bcComment		Comment
+HiLink bcString		String
+HiLink bcSpecialChar		SpecialChar
+HiLink bcParenError		Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "bc"
 " vim: ts=8
diff --git a/runtime/syntax/bib.vim b/runtime/syntax/bib.vim
--- a/runtime/syntax/bib.vim
+++ b/runtime/syntax/bib.vim
@@ -8,11 +8,8 @@
 
 " Initialization
 " ==============
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -91,11 +88,7 @@ syn region bibField contained start="\S\
 syn region bibEntryData contained start=/[{(]/ms=e+1 end=/[})]/me=e-1 contains=bibKey,bibField
 " Actually, 5.8 <= Vim < 6.0 would ignore the `fold' keyword anyway, but Vim<5.8 would produce
 " an error, so we explicitly distinguish versions with and without folding functionality:
-if version < 600
-  syn region bibEntry start=/@\S\+\s*[{(]/ end=/^\s*[})]/ transparent contains=bibType,bibEntryData nextgroup=bibComment
-else
-  syn region bibEntry start=/@\S\+\s*[{(]/ end=/^\s*[})]/ transparent fold contains=bibType,bibEntryData nextgroup=bibComment
-endif
+syn region bibEntry start=/@\S\+\s*[{(]/ end=/^\s*[})]/ transparent fold contains=bibType,bibEntryData nextgroup=bibComment
 syn region bibComment2 start=/@Comment\s*[{(]/ end=/^\s*[})]/me=e-1 contains=@bibCommentContents nextgroup=bibEntry
 
 " Synchronization
@@ -107,25 +100,18 @@ syn sync minlines=50
 " Highlighting defaults
 " =====================
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_bib_syn_inits")
-  if version < 508
-    let did_bib_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink bibType	Identifier
-  HiLink bibEntryKw	Statement
-  HiLink bibNSEntryKw	PreProc
-  HiLink bibKey		Special
-  HiLink bibVariable	Constant
-  HiLink bibUnescapedSpecial	Error
-  HiLink bibComment	Comment
-  HiLink bibComment2	Comment
-  delcommand HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink bibType	Identifier
+HiLink bibEntryKw	Statement
+HiLink bibNSEntryKw	PreProc
+HiLink bibKey		Special
+HiLink bibVariable	Constant
+HiLink bibUnescapedSpecial	Error
+HiLink bibComment	Comment
+HiLink bibComment2	Comment
+delcommand HiLink
 
 let b:current_syntax = "bib"
 
diff --git a/runtime/syntax/bindzone.vim b/runtime/syntax/bindzone.vim
--- a/runtime/syntax/bindzone.vim
+++ b/runtime/syntax/bindzone.vim
@@ -9,11 +9,8 @@
 " 
 " $Id: bindzone.vim 12 2011-07-16 21:09:57Z julian $
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -70,40 +67,32 @@ syn region      zoneParen       containe
 syn match       zoneComment     /;.*/
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_bind_zone_syn_inits")
-  if version < 508
-    let did_bind_zone_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink zoneDirective    Macro
+
+HiLink zoneUnknown      Error
+
+HiLink zoneOrigin       Statement
+HiLink zoneOwnerName    Statement
+HiLink zoneDomain       Identifier
 
-  HiLink zoneDirective    Macro
-  
-  HiLink zoneUnknown      Error
-  
-  HiLink zoneOrigin       Statement
-  HiLink zoneOwnerName    Statement
-  HiLink zoneDomain       Identifier
-  
-  HiLink zoneSpecial      Special
-  HiLink zoneTTL          Constant
-  HiLink zoneClass        Include
-  HiLink zoneRRType       Type
-  
-  HiLink zoneIPAddr       Number
-  HiLink zoneIP6Addr      Number
-  HiLink zoneText         String
-  HiLink zoneNumber       Number
-  HiLink zoneSerial       Special
-  
-  HiLink zoneErrParen     Error
-  HiLink zoneComment      Comment
+HiLink zoneSpecial      Special
+HiLink zoneTTL          Constant
+HiLink zoneClass        Include
+HiLink zoneRRType       Type
 
-  delcommand HiLink
-endif
+HiLink zoneIPAddr       Number
+HiLink zoneIP6Addr      Number
+HiLink zoneText         String
+HiLink zoneNumber       Number
+HiLink zoneSerial       Special
+
+HiLink zoneErrParen     Error
+HiLink zoneComment      Comment
+
+delcommand HiLink
 
 let b:current_syntax = "bindzone"
 
diff --git a/runtime/syntax/blank.vim b/runtime/syntax/blank.vim
--- a/runtime/syntax/blank.vim
+++ b/runtime/syntax/blank.vim
@@ -3,11 +3,8 @@
 " Maintainer:   Rafal M. Sulejman <unefunge@friko2.onet.pl>
 " Last change:  2011 Dec 28 by Thilo Six
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -28,22 +25,14 @@ syn match blankNumber "\[[0-9]\+\]"
 syn case match
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_blank_syntax_inits")
-  if version < 508
-    let did_blank_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink blankInstruction      Statement
-  HiLink blankNumber	       Number
-  HiLink blankString	       String
+HiLink blankInstruction      Statement
+HiLink blankNumber	       Number
+HiLink blankString	       String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "blank"
 
diff --git a/runtime/syntax/bst.vim b/runtime/syntax/bst.vim
--- a/runtime/syntax/bst.vim
+++ b/runtime/syntax/bst.vim
@@ -4,21 +4,12 @@
 " Filenames:    *.bst
 " $Id: bst.vim,v 1.2 2007/05/05 18:24:42 vimboss Exp $
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
-if version < 600
-    command -nargs=1 SetIsk set iskeyword=<args>
-else
-    command -nargs=1 SetIsk setlocal iskeyword=<args>
-endif
-SetIsk 48-57,#,$,',.,A-Z,a-z
-delcommand SetIsk
+setlocal iskeyword=48-57,#,$,',.,A-Z,a-z
 
 syn case ignore
 
@@ -62,27 +53,19 @@ syn keyword bstField          title type
 syn keyword bstField          volume year
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_bst_syn_inits")
-    if version < 508
-        let did_bst_syn_inits = 1
-        command -nargs=+ HiLink hi link <args>
-    else
-        command -nargs=+ HiLink hi def link <args>
-    endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-    HiLink bstComment           Comment
-    HiLink bstString            String
-    HiLink bstCommand           PreProc
-    HiLink bstBuiltIn           Statement
-    HiLink bstField             Special
-    HiLink bstNumber            Number
-    HiLink bstType              Type
-    HiLink bstIdentifier        Identifier
-    HiLink bstError             Error
-    delcommand HiLink
-endif
+HiLink bstComment           Comment
+HiLink bstString            String
+HiLink bstCommand           PreProc
+HiLink bstBuiltIn           Statement
+HiLink bstField             Special
+HiLink bstNumber            Number
+HiLink bstType              Type
+HiLink bstIdentifier        Identifier
+HiLink bstError             Error
+delcommand HiLink
 
 let b:current_syntax = "bst"
 
diff --git a/runtime/syntax/btm.vim b/runtime/syntax/btm.vim
--- a/runtime/syntax/btm.vim
+++ b/runtime/syntax/btm.vim
@@ -11,11 +11,8 @@
 "//- After unary operators like "defined" can assume token type.
 "//  Should there be more of these?
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -184,45 +181,37 @@ syn keyword btmCommand	unlock unset ver 
 syn keyword btmCommand	vscrput y
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_btm_syntax_inits")
-  if version < 508
-    let did_btm_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink btmLabel		Special
-  HiLink btmLabelMark		Special
-  HiLink btmCmdDivider		Special
-  HiLink btmConditional		btmStatement
-  HiLink btmDotBoolOp		btmStatement
-  HiLink btmRepeat		btmStatement
-  HiLink btmEchoCommand	btmStatement
-  HiLink btmEchoParam		btmStatement
-  HiLink btmStatement		Statement
-  HiLink btmTodo		Todo
-  HiLink btmString		String
-  HiLink btmNumber		Number
-  HiLink btmComment		Comment
-  HiLink btmArgument		Identifier
-  HiLink btmVariable		Identifier
-  HiLink btmEcho		String
-  HiLink btmBIFMatch		btmStatement
-  HiLink btmBuiltInFunc		btmStatement
-  HiLink btmBuiltInVar		btmStatement
-  HiLink btmSpecialVar		btmStatement
-  HiLink btmCommand		btmStatement
+HiLink btmLabel		Special
+HiLink btmLabelMark		Special
+HiLink btmCmdDivider		Special
+HiLink btmConditional		btmStatement
+HiLink btmDotBoolOp		btmStatement
+HiLink btmRepeat		btmStatement
+HiLink btmEchoCommand	btmStatement
+HiLink btmEchoParam		btmStatement
+HiLink btmStatement		Statement
+HiLink btmTodo		Todo
+HiLink btmString		String
+HiLink btmNumber		Number
+HiLink btmComment		Comment
+HiLink btmArgument		Identifier
+HiLink btmVariable		Identifier
+HiLink btmEcho		String
+HiLink btmBIFMatch		btmStatement
+HiLink btmBuiltInFunc		btmStatement
+HiLink btmBuiltInVar		btmStatement
+HiLink btmSpecialVar		btmStatement
+HiLink btmCommand		btmStatement
 
-  "optional highlighting
-  "HiLink btmShowTab		Error
-  "HiLink btmShowTabc		Error
-  "hiLink btmIdentifier		Identifier
+"optional highlighting
+"HiLink btmShowTab		Error
+"HiLink btmShowTabc		Error
+"hiLink btmIdentifier		Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "btm"
 
diff --git a/runtime/syntax/bzr.vim b/runtime/syntax/bzr.vim
--- a/runtime/syntax/bzr.vim
+++ b/runtime/syntax/bzr.vim
@@ -11,11 +11,8 @@
 "    Gioele Barabucci
 "       for idea of diff highlighting
 
-" For version 5.x: Clear all syntax items.
-" For version 6.x: Quit when a syntax file was already loaded.
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded.
+if exists("b:current_syntax")
   finish
 endif
 
@@ -40,24 +37,16 @@ syn sync clear
 syn sync match bzrSync  grouphere bzrRegion "^-\{14} This line and the following will be ignored -\{14}$"me=s-1
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already.
-" For version 5.8 and later: only when an item doesn't have highlighting yet.
-if version >= 508 || !exists("did_bzr_syn_inits")
-  if version <= 508
-    let did_bzr_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet.
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink bzrRemoved    Constant
-  HiLink bzrAdded      Identifier
-  HiLink bzrModified   Special
-  HiLink bzrRenamed    Special
-  HiLink bzrUnchanged  Special
-  HiLink bzrUnknown    Special
+HiLink bzrRemoved    Constant
+HiLink bzrAdded      Identifier
+HiLink bzrModified   Special
+HiLink bzrRenamed    Special
+HiLink bzrUnchanged  Special
+HiLink bzrUnknown    Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "bzr"
diff --git a/runtime/syntax/cabal.vim b/runtime/syntax/cabal.vim
--- a/runtime/syntax/cabal.vim
+++ b/runtime/syntax/cabal.vim
@@ -18,11 +18,8 @@
 " v1.0: Cabal syntax in vimball format
 "       (thanks to Magnus Therning)
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -105,27 +102,19 @@ syn match	cabalStatement	"\ctype"
 syn match	cabalStatement	"\cversion"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_cabal_syn_inits")
-  if version < 508
-    let did_cabal_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink cabalVersion       Number
-  HiLink cabalTruth         Boolean
-  HiLink cabalComment       Comment
-  HiLink cabalStatement     Statement
-  HiLink cabalCategory      Type
-  HiLink cabalFunction      Function
-  HiLink cabalConditional   Conditional
-  HiLink cabalOperator      Operator
-  HiLink cabalCompiler      Constant
-  delcommand HiLink
-endif
+HiLink cabalVersion       Number
+HiLink cabalTruth         Boolean
+HiLink cabalComment       Comment
+HiLink cabalStatement     Statement
+HiLink cabalCategory      Type
+HiLink cabalFunction      Function
+HiLink cabalConditional   Conditional
+HiLink cabalOperator      Operator
+HiLink cabalCompiler      Constant
+delcommand HiLink
 
 let b:current_syntax = "cabal"
 
diff --git a/runtime/syntax/cdl.vim b/runtime/syntax/cdl.vim
index 69f124bddff55c782ef98236a847ecb2cbe8de6f..501dcfc7e491d7e543480512bd55d3b44a3e5588
GIT binary patch
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diff --git a/runtime/syntax/cfg.vim b/runtime/syntax/cfg.vim
--- a/runtime/syntax/cfg.vim
+++ b/runtime/syntax/cfg.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Igor N. Prischepoff (igor@tyumbit.ru, pri_igor@mail.ru)
 " Last change:	2012 Aug 11
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists ("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists ("b:current_syntax")
     finish
 endif
 
@@ -36,25 +33,18 @@ syn match  CfgComment	";.*"
 syn match  CfgComment	"\/\/.*"
 
 " Define the default hightlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_cfg_syn_inits")
-    if version < 508
-	let did_cfg_syn_inits = 1
-	command -nargs=+ HiLink hi link <args>
-    else
-	command -nargs=+ HiLink hi def link <args>
-    endif
-    HiLink CfgOnOff     Label
-    HiLink CfgComment	Comment
-    HiLink CfgSection	Type
-    HiLink CfgString	String
-    HiLink CfgParams    Keyword
-    HiLink CfgValues    Constant
-    HiLink CfgDirectory Directory
-    HiLink UncPath      Directory
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink CfgOnOff     Label
+HiLink CfgComment	Comment
+HiLink CfgSection	Type
+HiLink CfgString	String
+HiLink CfgParams    Keyword
+HiLink CfgValues    Constant
+HiLink CfgDirectory Directory
+HiLink UncPath      Directory
 
-    delcommand HiLink
-endif
+delcommand HiLink
+
 let b:current_syntax = "cfg"
 " vim:ts=8
diff --git a/runtime/syntax/ch.vim b/runtime/syntax/ch.vim
--- a/runtime/syntax/ch.vim
+++ b/runtime/syntax/ch.vim
@@ -8,21 +8,14 @@
 " Ch is a C/C++ interpreter with many high level extensions
 "
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " Read the C syntax to start with
-if version < 600
-  so <sfile>:p:h/c.vim
-else
-  runtime! syntax/c.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/c.vim
+unlet b:current_syntax
 
 " Ch extentions
 
@@ -33,20 +26,14 @@ syn keyword	chStructure	class
 syn keyword	chType		string_t array
 
 " Default highlighting
-if version >= 508 || !exists("did_ch_syntax_inits")
-  if version < 508
-    let did_ch_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink chAccess		chStatement
-  HiLink chExceptions		Exception
-  HiLink chStatement		Statement
-  HiLink chType			Type
-  HiLink chStructure		Structure
-  delcommand HiLink
-endif
+command -nargs=+ HiLink hi def link <args>
+
+HiLink chAccess		chStatement
+HiLink chExceptions		Exception
+HiLink chStatement		Statement
+HiLink chType			Type
+HiLink chStructure		Structure
+delcommand HiLink
 
 let b:current_syntax = "ch"
 
diff --git a/runtime/syntax/change.vim b/runtime/syntax/change.vim
--- a/runtime/syntax/change.vim
+++ b/runtime/syntax/change.vim
@@ -7,11 +7,8 @@
 " in the articles by Donald E. Knuth and Silvio Levy cited in "web.vim" and
 " "cweb.vim" respectively.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -21,21 +18,13 @@ syn region changeFromMaterial start="^@x
 syn region changeToMaterial start="^@y.*$"ms=e+1 end="^@z.*$"me=s-1
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_change_syntax_inits")
-  if version < 508
-    let did_change_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink changeFromMaterial String
-  HiLink changeToMaterial Statement
+HiLink changeFromMaterial String
+HiLink changeToMaterial Statement
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "change"
 
diff --git a/runtime/syntax/changelog.vim b/runtime/syntax/changelog.vim
--- a/runtime/syntax/changelog.vim
+++ b/runtime/syntax/changelog.vim
@@ -4,11 +4,8 @@
 " Maintainer:	Corinna Vinschen <vinschen@redhat.com>
 " Last Change:	June 1, 2003
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -28,17 +25,12 @@ endif
 
 syn match	changelogText	"^\s.*$" contains=changelogMail,changelogNumber,changelogMonth,changelogDay,changelogError
 syn match	changelogHeader	"^\S.*$" contains=changelogNumber,changelogMonth,changelogDay,changelogMail
-if version < 600
-  syn region	changelogFiles	start="^\s\+[+*]\s" end=":\s" end="^$" contains=changelogBullet,changelogColon,changelogError keepend
-  syn region	changelogFiles	start="^\s\+[([]" end=":\s" end="^$" contains=changelogBullet,changelogColon,changelogError keepend
-  syn match	changelogColon	contained ":\s"
-else
-  syn region	changelogFiles	start="^\s\+[+*]\s" end=":" end="^$" contains=changelogBullet,changelogColon,changelogFuncs,changelogError keepend
-  syn region	changelogFiles	start="^\s\+[([]" end=":" end="^$" contains=changelogBullet,changelogColon,changelogFuncs,changelogError keepend
-  syn match	changelogFuncs  contained "(.\{-})" extend
-  syn match	changelogFuncs  contained "\[.\{-}]" extend
-  syn match	changelogColon	contained ":"
-endif
+syn region	changelogFiles	start="^\s\+[+*]\s" end=":" end="^$" contains=changelogBullet,changelogColon,changelogFuncs,changelogError keepend
+syn region	changelogFiles	start="^\s\+[([]" end=":" end="^$" contains=changelogBullet,changelogColon,changelogFuncs,changelogError keepend
+syn match	changelogFuncs  contained "(.\{-})" extend
+syn match	changelogFuncs  contained "\[.\{-}]" extend
+syn match	changelogColon	contained ":"
+
 syn match	changelogBullet	contained "^\s\+[+*]\s" contains=changelogError
 syn match	changelogMail	contained "<[A-Za-z0-9\._:+-]\+@[A-Za-z0-9\._-]\+>"
 syn keyword	changelogMonth	contained jan feb mar apr may jun jul aug sep oct nov dec
@@ -46,32 +38,22 @@ syn keyword	changelogDay	contained mon t
 syn match	changelogNumber	contained "[.-]*[0-9]\+"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_changelog_syntax_inits")
-  if version < 508
-    let did_changelog_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink changelogText		Normal
-  HiLink changelogBullet	Type
-  HiLink changelogColon		Type
-  HiLink changelogFiles		Comment
-  if version >= 600
-    HiLink changelogFuncs	Comment
-  endif
-  HiLink changelogHeader	Statement
-  HiLink changelogMail		Special
-  HiLink changelogNumber	Number
-  HiLink changelogMonth		Number
-  HiLink changelogDay		Number
-  HiLink changelogError		Folded
+HiLink changelogText		Normal
+HiLink changelogBullet	Type
+HiLink changelogColon		Type
+HiLink changelogFiles		Comment
+HiLink changelogFuncs	Comment
+HiLink changelogHeader	Statement
+HiLink changelogMail		Special
+HiLink changelogNumber	Number
+HiLink changelogMonth		Number
+HiLink changelogDay		Number
+HiLink changelogError		Folded
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "changelog"
 
diff --git a/runtime/syntax/chaskell.vim b/runtime/syntax/chaskell.vim
--- a/runtime/syntax/chaskell.vim
+++ b/runtime/syntax/chaskell.vim
@@ -9,10 +9,6 @@
 let b:hs_chs=1
 
 " Include standard Haskell highlighting
-if version < 600
-  source <sfile>:p:h/haskell.vim
-else
-  runtime! syntax/haskell.vim
-endif
+runtime! syntax/haskell.vim
 
 " vim: ts=8
diff --git a/runtime/syntax/cheetah.vim b/runtime/syntax/cheetah.vim
--- a/runtime/syntax/cheetah.vim
+++ b/runtime/syntax/cheetah.vim
@@ -8,11 +8,8 @@
 "  PSP-style tags: <% .. %> (obsoleted feature)
 "  doc-strings and header comments (rarely used feature)
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -36,25 +33,17 @@ syn match   cheetahComment "##.*$" displ
 syn region  cheetahMultiLineComment start="#\*" end="\*#"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_cheetah_syn_inits")
-	if version < 508
-		let did_cheetah_syn_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink cheetahPlaceHolder Identifier
-	HiLink cheetahDirective PreCondit
-	HiLink cheetahKeyword Define
-	HiLink cheetahContinuation Special
-	HiLink cheetahComment Comment
-	HiLink cheetahMultiLineComment Comment
+HiLink cheetahPlaceHolder Identifier
+HiLink cheetahDirective PreCondit
+HiLink cheetahKeyword Define
+HiLink cheetahContinuation Special
+HiLink cheetahComment Comment
+HiLink cheetahMultiLineComment Comment
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "cheetah"
 
diff --git a/runtime/syntax/chill.vim b/runtime/syntax/chill.vim
--- a/runtime/syntax/chill.vim
+++ b/runtime/syntax/chill.vim
@@ -11,11 +11,8 @@
 " & Communications LTd.)
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -124,67 +121,59 @@ endif
 exec "syn sync ccomment chillComment minlines=" . chill_minlines
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_ch_syntax_inits")
-  if version < 508
-    let did_ch_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink chillLabel	Label
-  HiLink chillUserLabel	Label
-  HiLink chillConditional	Conditional
-  " hi chillConditional	term=bold ctermfg=red guifg=red gui=bold
+HiLink chillLabel	Label
+HiLink chillUserLabel	Label
+HiLink chillConditional	Conditional
+" hi chillConditional	term=bold ctermfg=red guifg=red gui=bold
 
-  HiLink chillRepeat	Repeat
-  HiLink chillProcess	Repeat
-  HiLink chillSignal	Repeat
-  HiLink chillCharacter	Character
-  HiLink chillSpecialCharacter chillSpecial
-  HiLink chillNumber	Number
-  HiLink chillFloat	Float
-  HiLink chillOctalError	chillError
-  HiLink chillParenError	chillError
-  HiLink chillInParen	chillError
-  HiLink chillCommentError	chillError
-  HiLink chillSpaceError	chillError
-  HiLink chillOperator	Operator
-  HiLink chillStructure	Structure
-  HiLink chillBlock	Operator
-  HiLink chillScope	Operator
-  "hi chillEDML     term=underline ctermfg=DarkRed guifg=Red
-  HiLink chillEDML	PreProc
-  "hi chillBoolConst	term=bold ctermfg=brown guifg=brown
-  HiLink chillBoolConst	Constant
-  "hi chillLogical	term=bold ctermfg=brown guifg=brown
-  HiLink chillLogical	Constant
-  HiLink chillStorageClass	StorageClass
-  HiLink chillInclude	Include
-  HiLink chillPreProc	PreProc
-  HiLink chillDefine	Macro
-  HiLink chillIncluded	chillString
-  HiLink chillError	Error
-  HiLink chillStatement	Statement
-  HiLink chillPreCondit	PreCondit
-  HiLink chillType	Type
-  HiLink chillCommentError	chillError
-  HiLink chillCommentString chillString
-  HiLink chillComment2String chillString
-  HiLink chillCommentSkip	chillComment
-  HiLink chillString	String
-  HiLink chillComment	Comment
-  " hi chillComment	term=None ctermfg=lightblue guifg=lightblue
-  HiLink chillSpecial	SpecialChar
-  HiLink chillTodo	Todo
-  HiLink chillBlock	Statement
-  "HiLink chillIdentifier	Identifier
-  HiLink chillBracket	Delimiter
+HiLink chillRepeat	Repeat
+HiLink chillProcess	Repeat
+HiLink chillSignal	Repeat
+HiLink chillCharacter	Character
+HiLink chillSpecialCharacter chillSpecial
+HiLink chillNumber	Number
+HiLink chillFloat	Float
+HiLink chillOctalError	chillError
+HiLink chillParenError	chillError
+HiLink chillInParen	chillError
+HiLink chillCommentError	chillError
+HiLink chillSpaceError	chillError
+HiLink chillOperator	Operator
+HiLink chillStructure	Structure
+HiLink chillBlock	Operator
+HiLink chillScope	Operator
+"hi chillEDML     term=underline ctermfg=DarkRed guifg=Red
+HiLink chillEDML	PreProc
+"hi chillBoolConst	term=bold ctermfg=brown guifg=brown
+HiLink chillBoolConst	Constant
+"hi chillLogical	term=bold ctermfg=brown guifg=brown
+HiLink chillLogical	Constant
+HiLink chillStorageClass	StorageClass
+HiLink chillInclude	Include
+HiLink chillPreProc	PreProc
+HiLink chillDefine	Macro
+HiLink chillIncluded	chillString
+HiLink chillError	Error
+HiLink chillStatement	Statement
+HiLink chillPreCondit	PreCondit
+HiLink chillType	Type
+HiLink chillCommentError	chillError
+HiLink chillCommentString chillString
+HiLink chillComment2String chillString
+HiLink chillCommentSkip	chillComment
+HiLink chillString	String
+HiLink chillComment	Comment
+" hi chillComment	term=None ctermfg=lightblue guifg=lightblue
+HiLink chillSpecial	SpecialChar
+HiLink chillTodo	Todo
+HiLink chillBlock	Statement
+"HiLink chillIdentifier	Identifier
+HiLink chillBracket	Delimiter
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "chill"
 
diff --git a/runtime/syntax/cl.vim b/runtime/syntax/cl.vim
--- a/runtime/syntax/cl.vim
+++ b/runtime/syntax/cl.vim
@@ -10,19 +10,12 @@
 " Version:              6
 " Last Change:		Mar 06 2013
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
-if version >= 600
-	setlocal iskeyword=@,48-57,_,-
-else
-	set iskeyword=@,48-57,_,-
-endif
+setlocal iskeyword=@,48-57,_,-
 
 syn case ignore
 
@@ -75,40 +68,32 @@ syn keyword	clFunction	asc asize chr nam
 syn keyword	clStatement	clear clear_eol clear_eos close copy create unique with where empty define define ldefine delay_form delete escape exit_block exit_do exit_process field fork format get getfile getnext getprev goto head join maintain message no_join on_eop on_key on_exit on_delete openin openout openapp pause popenin popenout popenio print put range read redisplay refresh restart_block screen select sleep text unlock write and not or do
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if	version >= 508 || !exists("did_cl_syntax_inits")
-	if	version < 508
-		let did_cl_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink clifError	Error
-	HiLink clSpaceError	Error
-	HiLink clWhile		Repeat
-	HiLink clConditional	Conditional
-	HiLink clDebug		Debug
-	HiLink clNeedsWork	Todo
-	HiLink clTodo		Todo
-	HiLink clComment	Comment
-	HiLink clProcedure	Procedure
-	HiLink clBreak		Procedure
-	HiLink clInclude	Include
-	HiLink clSetOption	Statement
-	HiLink clSet		Identifier
-	HiLink clPreProc	PreProc
-	HiLink clOperator	Operator
-	HiLink clNumber		Number
-	HiLink clString		String
-	HiLink clQuote		Delimiter
-	HiLink clReserved	Identifier
-	HiLink clFunction	Function
-	HiLink clStatement	Statement
+HiLink clifError	Error
+HiLink clSpaceError	Error
+HiLink clWhile		Repeat
+HiLink clConditional	Conditional
+HiLink clDebug		Debug
+HiLink clNeedsWork	Todo
+HiLink clTodo		Todo
+HiLink clComment	Comment
+HiLink clProcedure	Procedure
+HiLink clBreak		Procedure
+HiLink clInclude	Include
+HiLink clSetOption	Statement
+HiLink clSet		Identifier
+HiLink clPreProc	PreProc
+HiLink clOperator	Operator
+HiLink clNumber		Number
+HiLink clString		String
+HiLink clQuote		Delimiter
+HiLink clReserved	Identifier
+HiLink clFunction	Function
+HiLink clStatement	Statement
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "cl"
 
diff --git a/runtime/syntax/clean.vim b/runtime/syntax/clean.vim
--- a/runtime/syntax/clean.vim
+++ b/runtime/syntax/clean.vim
@@ -4,11 +4,8 @@
 " Co-Author:	Arthur van Leeuwen <arthurvl@sci.kun.nl>
 " Last Change:	2013 Oct 15 by Jurriën Stutterheim
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -52,49 +49,41 @@ syn match cleanFuncTypeDef "\([a-zA-Z].*
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_clean_syntax_init")
-  if version < 508
-    let did_clean_syntax_init = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-   " Comments
-   HiLink cleanComment      Comment
-   " Constants and denotations
-   HiLink cleanStringDenot  String
-   HiLink cleanCharDenot    Character
-   HiLink cleanIntegerDenot Number
-   HiLink cleanBoolDenot    Boolean
-   HiLink cleanRealDenot    Float
-   " Identifiers
-   " Statements
-   HiLink cleanTypeClass    Keyword
-   HiLink cleanConditional  Conditional
-   HiLink cleanLabel		Label
-   HiLink cleanKeyword      Keyword
-   " Generic Preprocessing
-   HiLink cleanIncludeKeyword      Include
-   HiLink cleanModuleSystem PreProc
-   " Type
-   HiLink cleanBasicType    Type
-   HiLink cleanSpecialType  Type
-   HiLink cleanFuncTypeDef  Typedef
-   " Special
-   HiLink cleanSpecial      Special
-   HiLink cleanList			Special
-   HiLink cleanArray		Special
-   HiLink cleanRecord		Special
-   HiLink cleanTuple		Special
-   " Error
-   " Todo
-   HiLink cleanTodo         Todo
+ " Comments
+ HiLink cleanComment      Comment
+ " Constants and denotations
+ HiLink cleanStringDenot  String
+ HiLink cleanCharDenot    Character
+ HiLink cleanIntegerDenot Number
+ HiLink cleanBoolDenot    Boolean
+ HiLink cleanRealDenot    Float
+ " Identifiers
+ " Statements
+ HiLink cleanTypeClass    Keyword
+ HiLink cleanConditional  Conditional
+ HiLink cleanLabel		Label
+ HiLink cleanKeyword      Keyword
+ " Generic Preprocessing
+ HiLink cleanIncludeKeyword      Include
+ HiLink cleanModuleSystem PreProc
+ " Type
+ HiLink cleanBasicType    Type
+ HiLink cleanSpecialType  Type
+ HiLink cleanFuncTypeDef  Typedef
+ " Special
+ HiLink cleanSpecial      Special
+ HiLink cleanList			Special
+ HiLink cleanArray		Special
+ HiLink cleanRecord		Special
+ HiLink cleanTuple		Special
+ " Error
+ " Todo
+ HiLink cleanTodo         Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "clean"
 
diff --git a/runtime/syntax/clipper.vim b/runtime/syntax/clipper.vim
--- a/runtime/syntax/clipper.vim
+++ b/runtime/syntax/clipper.vim
@@ -4,11 +4,8 @@
 " Some things based on c.vim by Bram Moolenaar and pascal.vim by Mario Eusebio
 " Last Change:	2011 Dec 29 by Thilo Six
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -114,32 +111,24 @@ syntax match clipperComment		"^\*.*"
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_clipper_syntax_inits")
-  if version < 508
-    let did_clipper_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink clipperConditional		Conditional
-  HiLink clipperRepeat			Repeat
-  HiLink clipperNumber			Number
-  HiLink clipperInclude		Include
-  HiLink clipperComment		Comment
-  HiLink clipperOperator		Operator
-  HiLink clipperStorageClass		StorageClass
-  HiLink clipperStatement		Statement
-  HiLink clipperString			String
-  HiLink clipperFunction		Function
-  HiLink clipperLineContinuation	Special
-  HiLink clipperDelimiters		Delimiter
-  HiLink clipperUserVariable		Identifier
+HiLink clipperConditional		Conditional
+HiLink clipperRepeat			Repeat
+HiLink clipperNumber			Number
+HiLink clipperInclude		Include
+HiLink clipperComment		Comment
+HiLink clipperOperator		Operator
+HiLink clipperStorageClass		StorageClass
+HiLink clipperStatement		Statement
+HiLink clipperString			String
+HiLink clipperFunction		Function
+HiLink clipperLineContinuation	Special
+HiLink clipperDelimiters		Delimiter
+HiLink clipperUserVariable		Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "clipper"
 
diff --git a/runtime/syntax/cmake.vim b/runtime/syntax/cmake.vim
--- a/runtime/syntax/cmake.vim
+++ b/runtime/syntax/cmake.vim
@@ -12,11 +12,8 @@
 "               http://www.cmake.org/HTML/Copyright.html
 "               This implies that distribution with Vim is allowed
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 let s:keepcpo= &cpo
@@ -52,32 +49,24 @@ syn keyword cmakeTodo
             \ contained
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_cmake_syntax_inits")
-  if version < 508
-    let did_cmake_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink cmakeStatement Statement
-  HiLink cmakeComment Comment
-  HiLink cmakeString String
-  HiLink cmakeVariableValue Type
-  HiLink cmakeRegistry Underlined
-  HiLink cmakeArguments Identifier
-  HiLink cmakeArgument Constant
-  HiLink cmakeEnvironment Special
-  HiLink cmakeOperators Operator
-  HiLink cmakeMacro PreProc
-  HiLink cmakeError Error
-  HiLink cmakeTodo TODO
-  HiLink cmakeEscaped Special
+HiLink cmakeStatement Statement
+HiLink cmakeComment Comment
+HiLink cmakeString String
+HiLink cmakeVariableValue Type
+HiLink cmakeRegistry Underlined
+HiLink cmakeArguments Identifier
+HiLink cmakeArgument Constant
+HiLink cmakeEnvironment Special
+HiLink cmakeOperators Operator
+HiLink cmakeMacro PreProc
+HiLink cmakeError Error
+HiLink cmakeTodo TODO
+HiLink cmakeEscaped Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "cmake"
 
diff --git a/runtime/syntax/cobol.vim b/runtime/syntax/cobol.vim
--- a/runtime/syntax/cobol.vim
+++ b/runtime/syntax/cobol.vim
@@ -6,20 +6,13 @@
 "               James Mitchell <james_mitchell@acm.org>)
 " Last Change:  2015 Feb 13
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " MOST important - else most of the keywords wont work!
-if version < 600
-  set isk=@,48-57,-
-else
-  setlocal isk=@,48-57,-
-endif
+setlocal isk=@,48-57,-
 
 syn case ignore
 
@@ -157,52 +150,44 @@ else
 endif
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_cobol_syntax_inits")
-  if version < 508
-    let did_cobol_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink cobolBAD      Error
-  HiLink cobolBadID    Error
-  HiLink cobolBadLine  Error
-  if exists("g:cobol_legacy_code")
-      HiLink cobolMarker   Comment
-  else
-      HiLink cobolMarker   Error
-  endif
-  HiLink cobolCALLs    Function
-  HiLink cobolComment  Comment
-  HiLink cobolKeys     Comment
-  HiLink cobolAreaB    Special
-  HiLink cobolCompiler PreProc
-  HiLink cobolCondFlow Special
-  HiLink cobolCopy     PreProc
-  HiLink cobolDeclA    cobolDecl
-  HiLink cobolDecl     Type
-  HiLink cobolExtras   Special
-  HiLink cobolGoTo     Special
-  HiLink cobolConstant Constant
-  HiLink cobolNumber   Constant
-  HiLink cobolPic      Constant
-  HiLink cobolReserved Statement
-  HiLink cobolDivision Label
-  HiLink cobolSection  Label
-  HiLink cobolParagraph Label
-  HiLink cobolDivisionName  Keyword
-  HiLink cobolSectionName   Keyword
-  HiLink cobolParagraphName Keyword
-  HiLink cobolString   Constant
-  HiLink cobolTodo     Todo
-  HiLink cobolWatch    Special
-  HiLink cobolIndicator Special
+HiLink cobolBAD      Error
+HiLink cobolBadID    Error
+HiLink cobolBadLine  Error
+if exists("g:cobol_legacy_code")
+    HiLink cobolMarker   Comment
+else
+    HiLink cobolMarker   Error
+endif
+HiLink cobolCALLs    Function
+HiLink cobolComment  Comment
+HiLink cobolKeys     Comment
+HiLink cobolAreaB    Special
+HiLink cobolCompiler PreProc
+HiLink cobolCondFlow Special
+HiLink cobolCopy     PreProc
+HiLink cobolDeclA    cobolDecl
+HiLink cobolDecl     Type
+HiLink cobolExtras   Special
+HiLink cobolGoTo     Special
+HiLink cobolConstant Constant
+HiLink cobolNumber   Constant
+HiLink cobolPic      Constant
+HiLink cobolReserved Statement
+HiLink cobolDivision Label
+HiLink cobolSection  Label
+HiLink cobolParagraph Label
+HiLink cobolDivisionName  Keyword
+HiLink cobolSectionName   Keyword
+HiLink cobolParagraphName Keyword
+HiLink cobolString   Constant
+HiLink cobolTodo     Todo
+HiLink cobolWatch    Special
+HiLink cobolIndicator Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "cobol"
 
diff --git a/runtime/syntax/coco.vim b/runtime/syntax/coco.vim
--- a/runtime/syntax/coco.vim
+++ b/runtime/syntax/coco.vim
@@ -5,9 +5,8 @@
 " Remark:       Coco/R syntax partially implemented.
 " License:      Vim license
 
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
diff --git a/runtime/syntax/config.vim b/runtime/syntax/config.vim
--- a/runtime/syntax/config.vim
+++ b/runtime/syntax/config.vim
@@ -11,11 +11,8 @@
 " script, so I wrote this quick and dirty patch.
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -37,28 +34,20 @@ syn region  configstring matchgroup=conf
 syn region  configstring matchgroup=configfunction start="AC_MSG_[A-Z]*\ze([^[]" matchgroup=configdelimiter end=")" contains=configdelimiter,@Spell
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_config_syntax_inits")
-  if version < 508
-    let did_config_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink configdelimiter Delimiter
-  HiLink configoperator  Operator
-  HiLink configcomment   Comment
-  HiLink configDnl  	 Comment
-  HiLink configfunction  Function
-  HiLink confignumber    Number
-  HiLink configkeyword   Keyword
-  HiLink configspecial   Special
-  HiLink configstring    String
+HiLink configdelimiter Delimiter
+HiLink configoperator  Operator
+HiLink configcomment   Comment
+HiLink configDnl  	 Comment
+HiLink configfunction  Function
+HiLink confignumber    Number
+HiLink configkeyword   Keyword
+HiLink configspecial   Special
+HiLink configstring    String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "config"
 
diff --git a/runtime/syntax/cpp.vim b/runtime/syntax/cpp.vim
--- a/runtime/syntax/cpp.vim
+++ b/runtime/syntax/cpp.vim
@@ -4,21 +4,14 @@
 " Previous Maintainer:	Ken Shan <ccshan@post.harvard.edu>
 " Last Change:	2016 Jul 07
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " Read the C syntax to start with
-if version < 600
-  so <sfile>:p:h/c.vim
-else
-  runtime! syntax/c.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/c.vim
+unlet b:current_syntax
 
 " C++ extensions
 syn keyword cppStatement	new delete this friend using
@@ -60,29 +53,22 @@ endif
 syn match cppMinMax "[<>]?"
 
 " Default highlighting
-if version >= 508 || !exists("did_cpp_syntax_inits")
-  if version < 508
-    let did_cpp_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink cppAccess		cppStatement
-  HiLink cppCast		cppStatement
-  HiLink cppExceptions		Exception
-  HiLink cppOperator		Operator
-  HiLink cppStatement		Statement
-  HiLink cppModifier		Type
-  HiLink cppType		Type
-  HiLink cppStorageClass	StorageClass
-  HiLink cppStructure		Structure
-  HiLink cppBoolean		Boolean
-  HiLink cppConstant		Constant
-  HiLink cppRawStringDelimiter	Delimiter
-  HiLink cppRawString		String
-  HiLink cppNumber		Number
-  delcommand HiLink
-endif
+command -nargs=+ HiLink hi def link <args>
+HiLink cppAccess		cppStatement
+HiLink cppCast		cppStatement
+HiLink cppExceptions		Exception
+HiLink cppOperator		Operator
+HiLink cppStatement		Statement
+HiLink cppModifier		Type
+HiLink cppType		Type
+HiLink cppStorageClass	StorageClass
+HiLink cppStructure		Structure
+HiLink cppBoolean		Boolean
+HiLink cppConstant		Constant
+HiLink cppRawStringDelimiter	Delimiter
+HiLink cppRawString		String
+HiLink cppNumber		Number
+delcommand HiLink
 
 let b:current_syntax = "cpp"
 
diff --git a/runtime/syntax/crontab.vim b/runtime/syntax/crontab.vim
--- a/runtime/syntax/crontab.vim
+++ b/runtime/syntax/crontab.vim
@@ -10,11 +10,8 @@
 " crontab line format:
 " Minutes   Hours   Days   Months   Days_of_Week   Commands # comments
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -39,41 +36,33 @@ syntax match crontabCmnt "^\s*#.*" conta
 syntax match crontabPercent "[^\\]%.*"lc=1 contained
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_crontab_syn_inits")
-	if version < 508
-		let did_crontab_syn_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink crontabMin		Number
-	HiLink crontabHr		PreProc
-	HiLink crontabDay		Type
+HiLink crontabMin		Number
+HiLink crontabHr		PreProc
+HiLink crontabDay		Type
 
-	HiLink crontabMnth		Number
-	HiLink crontabMnth12		Number
-	HiLink crontabMnthS		Number
-	HiLink crontabMnthN		Number
+HiLink crontabMnth		Number
+HiLink crontabMnth12		Number
+HiLink crontabMnthS		Number
+HiLink crontabMnthN		Number
 
-	HiLink crontabDow		PreProc
-	HiLink crontabDow7		PreProc
-	HiLink crontabDowS		PreProc
-	HiLink crontabDowN		PreProc
+HiLink crontabDow		PreProc
+HiLink crontabDow7		PreProc
+HiLink crontabDowS		PreProc
+HiLink crontabDowN		PreProc
 
-	HiLink crontabNick		Special
-	HiLink crontabVar		Identifier
-	HiLink crontabPercent		Special
+HiLink crontabNick		Special
+HiLink crontabVar		Identifier
+HiLink crontabPercent		Special
 
 " comment out next line for to suppress unix commands coloring.
-	HiLink crontabCmd		Statement
+HiLink crontabCmd		Statement
 
-	HiLink crontabCmnt		Comment
+HiLink crontabCmnt		Comment
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "crontab"
 
diff --git a/runtime/syntax/csc.vim b/runtime/syntax/csc.vim
--- a/runtime/syntax/csc.vim
+++ b/runtime/syntax/csc.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Raul Segura Acevedo <raulseguraaceved@netscape.net>
 " Last change:	2011 Dec 25 by Thilo Six
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -145,7 +142,7 @@ sy	match	cscBPMacro	contained	"!"
 sy	match	cscBPW	"!\s*\a*"	contains=cscBPmacro
 
 " when wanted, highlighting lhs members or erros in asignments (may lag the editing)
-if version >= 600 && exists("csc_asignment")
+if exists("csc_asignment")
 	sy	match	cscEqError	'\("[^"]*"\s*\|[^][\t !%()*+,--/:;<=>{}~]\+\s*\|->\s*\)*=\([^=]\@=\|$\)'
 	sy	region	cscFormula	transparent matchgroup=cscVarName start='\("[^"]*"\|[^][\t !%()*+,--/:;<=>{}~]\+\)\s*=\([^=]\@=\|\n\)' skip='"[^"]*"' end=';' contains=ALLBUT,cscFormula,cscFormulaIn,cscBPMacro,cscCondition
 	sy	region	cscFormulaIn	matchgroup=cscVarName transparent start='\("[^"]*"\|[^][\t !%()*+,--/:;<=>{}~]\+\)\(->\("[^"]*"\|[^][\t !%()*+,--/:;<=>{}~]\+\)\)*\s*=\([^=]\@=\|$\)' skip='"[^"]*"' end=';' contains=ALLBUT,cscFormula,cscFormulaIn,cscBPMacro,cscCondition contained
@@ -158,44 +155,36 @@ endif
 exec "sy sync ccomment cscComment minlines=" . csc_minlines
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_csc_syntax_inits")
-	if version < 508
-		let did_csc_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	hi cscVarName term=bold ctermfg=9 gui=bold guifg=blue
+hi cscVarName term=bold ctermfg=9 gui=bold guifg=blue
 
-	HiLink	cscNumber	Number
-	HiLink	cscOctal	Number
-	HiLink	cscFloat	Float
-	HiLink	cscParenE	Error
-	HiLink	cscCommentE	Error
-	HiLink	cscSpaceE	Error
-	HiLink	cscError	Error
-	HiLink	cscString	String
-	HiLink	cscComment	Comment
-	HiLink	cscTodo		Todo
-	HiLink	cscStatement	Statement
-	HiLink	cscIfError	Error
-	HiLink	cscEqError	Error
-	HiLink	cscFunction	Statement
-	HiLink	cscCondition	Statement
-	HiLink	cscWarn		WarningMsg
+HiLink	cscNumber	Number
+HiLink	cscOctal	Number
+HiLink	cscFloat	Float
+HiLink	cscParenE	Error
+HiLink	cscCommentE	Error
+HiLink	cscSpaceE	Error
+HiLink	cscError	Error
+HiLink	cscString	String
+HiLink	cscComment	Comment
+HiLink	cscTodo		Todo
+HiLink	cscStatement	Statement
+HiLink	cscIfError	Error
+HiLink	cscEqError	Error
+HiLink	cscFunction	Statement
+HiLink	cscCondition	Statement
+HiLink	cscWarn		WarningMsg
 
-	HiLink	cscComE	Error
-	HiLink	cscCom	Statement
-	HiLink	cscComW	WarningMsg
+HiLink	cscComE	Error
+HiLink	cscCom	Statement
+HiLink	cscComW	WarningMsg
 
-	HiLink	cscBPMacro	Identifier
-	HiLink	cscBPW		WarningMsg
+HiLink	cscBPMacro	Identifier
+HiLink	cscBPW		WarningMsg
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "csc"
 
diff --git a/runtime/syntax/csh.vim b/runtime/syntax/csh.vim
--- a/runtime/syntax/csh.vim
+++ b/runtime/syntax/csh.vim
@@ -5,11 +5,8 @@
 " Version:	11
 " URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_CSH
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -100,60 +97,47 @@ syn match cshNumber	"-\=\<\d\+\>"
 "syn match cshIdentifier	"\<[a-zA-Z._][a-zA-Z0-9._]*\>"
 
 " Shell Input Redirection (Here Documents)
-if version < 600
-  syn region cshHereDoc matchgroup=cshRedir start="<<-\=\s*\**END[a-zA-Z_0-9]*\**" matchgroup=cshRedir end="^END[a-zA-Z_0-9]*$"
-  syn region cshHereDoc matchgroup=cshRedir start="<<-\=\s*\**EOF\**" matchgroup=cshRedir end="^EOF$"
-else
-  syn region cshHereDoc matchgroup=cshRedir start="<<-\=\s*\**\z(\h\w*\)\**" matchgroup=cshRedir end="^\z1$"
-endif
+syn region cshHereDoc matchgroup=cshRedir start="<<-\=\s*\**\z(\h\w*\)\**" matchgroup=cshRedir end="^\z1$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_csh_syntax_inits")
-  if version < 508
-    let did_csh_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink cshArgv		cshVariables
+HiLink cshBckQuote	cshCommand
+HiLink cshDblQuote	cshString
+HiLink cshExtVar	cshVariables
+HiLink cshHereDoc	cshString
+HiLink cshNoEndlineBQ	cshNoEndline
+HiLink cshNoEndlineDQ	cshNoEndline
+HiLink cshNoEndlineSQ	cshNoEndline
+HiLink cshQtyWord	cshVariables
+HiLink cshRedir		cshOperator
+HiLink cshSelector	cshVariables
+HiLink cshSetStmt	cshStatement
+HiLink cshSetVariables	cshVariables
+HiLink cshSnglQuote	cshString
+HiLink cshSubst		cshVariables
 
-  HiLink cshArgv		cshVariables
-  HiLink cshBckQuote	cshCommand
-  HiLink cshDblQuote	cshString
-  HiLink cshExtVar	cshVariables
-  HiLink cshHereDoc	cshString
-  HiLink cshNoEndlineBQ	cshNoEndline
-  HiLink cshNoEndlineDQ	cshNoEndline
-  HiLink cshNoEndlineSQ	cshNoEndline
-  HiLink cshQtyWord	cshVariables
-  HiLink cshRedir		cshOperator
-  HiLink cshSelector	cshVariables
-  HiLink cshSetStmt	cshStatement
-  HiLink cshSetVariables	cshVariables
-  HiLink cshSnglQuote	cshString
-  HiLink cshSubst		cshVariables
+HiLink cshCommand	Statement
+HiLink cshComment	Comment
+HiLink cshConditional	Conditional
+HiLink cshIdentifier	Error
+HiLink cshModifier	Special
+HiLink cshNoEndline	Error
+HiLink cshNumber	Number
+HiLink cshOperator	Operator
+HiLink cshRedir		Statement
+HiLink cshRepeat	Repeat
+HiLink cshShellVariables	Special
+HiLink cshSpecial	Special
+HiLink cshStatement	Statement
+HiLink cshString	String
+HiLink cshSubstError	Error
+HiLink cshTodo		Todo
+HiLink cshVariables	Type
 
-  HiLink cshCommand	Statement
-  HiLink cshComment	Comment
-  HiLink cshConditional	Conditional
-  HiLink cshIdentifier	Error
-  HiLink cshModifier	Special
-  HiLink cshNoEndline	Error
-  HiLink cshNumber	Number
-  HiLink cshOperator	Operator
-  HiLink cshRedir		Statement
-  HiLink cshRepeat	Repeat
-  HiLink cshShellVariables	Special
-  HiLink cshSpecial	Special
-  HiLink cshStatement	Statement
-  HiLink cshString	String
-  HiLink cshSubstError	Error
-  HiLink cshTodo		Todo
-  HiLink cshVariables	Type
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "csh"
 
diff --git a/runtime/syntax/csp.vim b/runtime/syntax/csp.vim
--- a/runtime/syntax/csp.vim
+++ b/runtime/syntax/csp.vim
@@ -15,11 +15,8 @@
 "		- The additional syntax for the RT-Tester (pseudo-comments)
 "		  should be optional.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -149,46 +146,38 @@ syn match cspSdlRttComment	"pragma\s\+SD
 syn sync lines=250
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_csp_syn_inits")
-  if version < 508
-    let did_csp_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting.  Can be overridden later
-  " (For vim version <=5.7, the command groups are defined in
-  " $VIMRUNTIME/syntax/synload.vim )
-  HiLink cspComment			Comment
-  HiLink cspNumber			Number
-  HiLink cspConditional			Conditional
-  HiLink cspOperator			Delimiter
-  HiLink cspKeyword			Keyword
-  HiLink cspReserved			SpecialChar
-  HiLink cspInclude			Error
-  HiLink cspIncludeKeyword		Include
-  HiLink cspIncludeArg			Include
-  HiLink cspAssert			PreCondit
-  HiLink cspType			Type
-  HiLink cspProcess			Function
-  HiLink cspTodo			Todo
-  HiLink cspOldRttComment		Define
-  HiLink cspRttPragmaKeyword		Define
-  HiLink cspSdlRttComment		Define
-  HiLink cspRttPragmaArg		Define
-  HiLink cspRttPragmaSdlArg		Define
-  HiLink cspRttPragmaSdlName		Default
-  HiLink cspRttPragmaSdlTailArg		Define
-  HiLink cspRttPragmaSdlTransName	Default
-  HiLink cspRttPragmaSdlTransTailArg	Define
-  HiLink cspReservedIdentifier	Error
-  " (Currently unused vim method: Debug)
+" The default methods for highlighting.  Can be overridden later
+" (For vim version <=5.7, the command groups are defined in
+" $VIMRUNTIME/syntax/synload.vim )
+HiLink cspComment			Comment
+HiLink cspNumber			Number
+HiLink cspConditional			Conditional
+HiLink cspOperator			Delimiter
+HiLink cspKeyword			Keyword
+HiLink cspReserved			SpecialChar
+HiLink cspInclude			Error
+HiLink cspIncludeKeyword		Include
+HiLink cspIncludeArg			Include
+HiLink cspAssert			PreCondit
+HiLink cspType			Type
+HiLink cspProcess			Function
+HiLink cspTodo			Todo
+HiLink cspOldRttComment		Define
+HiLink cspRttPragmaKeyword		Define
+HiLink cspSdlRttComment		Define
+HiLink cspRttPragmaArg		Define
+HiLink cspRttPragmaSdlArg		Define
+HiLink cspRttPragmaSdlName		Default
+HiLink cspRttPragmaSdlTailArg		Define
+HiLink cspRttPragmaSdlTransName	Default
+HiLink cspRttPragmaSdlTransTailArg	Define
+HiLink cspReservedIdentifier	Error
+" (Currently unused vim method: Debug)
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "csp"
 
diff --git a/runtime/syntax/css.vim b/runtime/syntax/css.vim
--- a/runtime/syntax/css.vim
+++ b/runtime/syntax/css.vim
@@ -8,12 +8,9 @@
 " URL:          https://github.com/JulesWang/css.vim
 " Last Change:  2015 Apr.17
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
+" quit when a syntax file was already loaded
 if !exists("main_syntax")
-  if version < 600
-    syntax clear
-  elseif exists("b:current_syntax")
+  if exists("b:current_syntax")
     finish
   endif
   let main_syntax = 'css'
@@ -516,139 +513,131 @@ if main_syntax == "css"
 endif
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_css_syn_inits")
-  if version < 508
-    let did_css_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink cssComment Comment
-  HiLink cssVendor Comment
-  HiLink cssHacks Comment
-  HiLink cssTagName Statement
-  HiLink cssDeprecated Error
-  HiLink cssSelectorOp Special
-  HiLink cssSelectorOp2 Special
-  HiLink cssAttrComma Special
+HiLink cssComment Comment
+HiLink cssVendor Comment
+HiLink cssHacks Comment
+HiLink cssTagName Statement
+HiLink cssDeprecated Error
+HiLink cssSelectorOp Special
+HiLink cssSelectorOp2 Special
+HiLink cssAttrComma Special
 
-  HiLink cssAnimationProp cssProp
-  HiLink cssBackgroundProp cssProp
-  HiLink cssBorderProp cssProp
-  HiLink cssBoxProp cssProp
-  HiLink cssColorProp cssProp
-  HiLink cssContentForPagedMediaProp cssProp
-  HiLink cssDimensionProp cssProp
-  HiLink cssFlexibleBoxProp cssProp
-  HiLink cssFontProp cssProp
-  HiLink cssGeneratedContentProp cssProp
-  HiLink cssGridProp cssProp
-  HiLink cssHyerlinkProp cssProp
-  HiLink cssLineboxProp cssProp
-  HiLink cssListProp cssProp
-  HiLink cssMarqueeProp cssProp
-  HiLink cssMultiColumnProp cssProp
-  HiLink cssPagedMediaProp cssProp
-  HiLink cssPositioningProp cssProp
-  HiLink cssPrintProp cssProp
-  HiLink cssRubyProp cssProp
-  HiLink cssSpeechProp cssProp
-  HiLink cssTableProp cssProp
-  HiLink cssTextProp cssProp
-  HiLink cssTransformProp cssProp
-  HiLink cssTransitionProp cssProp
-  HiLink cssUIProp cssProp
-  HiLink cssIEUIProp cssProp
-  HiLink cssAuralProp cssProp
-  HiLink cssRenderProp cssProp
-  HiLink cssMobileTextProp cssProp
+HiLink cssAnimationProp cssProp
+HiLink cssBackgroundProp cssProp
+HiLink cssBorderProp cssProp
+HiLink cssBoxProp cssProp
+HiLink cssColorProp cssProp
+HiLink cssContentForPagedMediaProp cssProp
+HiLink cssDimensionProp cssProp
+HiLink cssFlexibleBoxProp cssProp
+HiLink cssFontProp cssProp
+HiLink cssGeneratedContentProp cssProp
+HiLink cssGridProp cssProp
+HiLink cssHyerlinkProp cssProp
+HiLink cssLineboxProp cssProp
+HiLink cssListProp cssProp
+HiLink cssMarqueeProp cssProp
+HiLink cssMultiColumnProp cssProp
+HiLink cssPagedMediaProp cssProp
+HiLink cssPositioningProp cssProp
+HiLink cssPrintProp cssProp
+HiLink cssRubyProp cssProp
+HiLink cssSpeechProp cssProp
+HiLink cssTableProp cssProp
+HiLink cssTextProp cssProp
+HiLink cssTransformProp cssProp
+HiLink cssTransitionProp cssProp
+HiLink cssUIProp cssProp
+HiLink cssIEUIProp cssProp
+HiLink cssAuralProp cssProp
+HiLink cssRenderProp cssProp
+HiLink cssMobileTextProp cssProp
 
-  HiLink cssAnimationAttr cssAttr
-  HiLink cssBackgroundAttr cssAttr
-  HiLink cssBorderAttr cssAttr
-  HiLink cssBoxAttr cssAttr
-  HiLink cssContentForPagedMediaAttr cssAttr
-  HiLink cssDimensionAttr cssAttr
-  HiLink cssFlexibleBoxAttr cssAttr
-  HiLink cssFontAttr cssAttr
-  HiLink cssGeneratedContentAttr cssAttr
-  HiLink cssGridAttr cssAttr
-  HiLink cssHyerlinkAttr cssAttr
-  HiLink cssLineboxAttr cssAttr
-  HiLink cssListAttr cssAttr
-  HiLink cssMarginAttr cssAttr
-  HiLink cssMarqueeAttr cssAttr
-  HiLink cssMultiColumnAttr cssAttr
-  HiLink cssPaddingAttr cssAttr
-  HiLink cssPagedMediaAttr cssAttr
-  HiLink cssPositioningAttr cssAttr
-  HiLink cssGradientAttr cssAttr
-  HiLink cssPrintAttr cssAttr
-  HiLink cssRubyAttr cssAttr
-  HiLink cssSpeechAttr cssAttr
-  HiLink cssTableAttr cssAttr
-  HiLink cssTextAttr cssAttr
-  HiLink cssTransformAttr cssAttr
-  HiLink cssTransitionAttr cssAttr
-  HiLink cssUIAttr cssAttr
-  HiLink cssIEUIAttr cssAttr
-  HiLink cssAuralAttr cssAttr
-  HiLink cssRenderAttr cssAttr
-  HiLink cssCommonAttr cssAttr
+HiLink cssAnimationAttr cssAttr
+HiLink cssBackgroundAttr cssAttr
+HiLink cssBorderAttr cssAttr
+HiLink cssBoxAttr cssAttr
+HiLink cssContentForPagedMediaAttr cssAttr
+HiLink cssDimensionAttr cssAttr
+HiLink cssFlexibleBoxAttr cssAttr
+HiLink cssFontAttr cssAttr
+HiLink cssGeneratedContentAttr cssAttr
+HiLink cssGridAttr cssAttr
+HiLink cssHyerlinkAttr cssAttr
+HiLink cssLineboxAttr cssAttr
+HiLink cssListAttr cssAttr
+HiLink cssMarginAttr cssAttr
+HiLink cssMarqueeAttr cssAttr
+HiLink cssMultiColumnAttr cssAttr
+HiLink cssPaddingAttr cssAttr
+HiLink cssPagedMediaAttr cssAttr
+HiLink cssPositioningAttr cssAttr
+HiLink cssGradientAttr cssAttr
+HiLink cssPrintAttr cssAttr
+HiLink cssRubyAttr cssAttr
+HiLink cssSpeechAttr cssAttr
+HiLink cssTableAttr cssAttr
+HiLink cssTextAttr cssAttr
+HiLink cssTransformAttr cssAttr
+HiLink cssTransitionAttr cssAttr
+HiLink cssUIAttr cssAttr
+HiLink cssIEUIAttr cssAttr
+HiLink cssAuralAttr cssAttr
+HiLink cssRenderAttr cssAttr
+HiLink cssCommonAttr cssAttr
 
-  HiLink cssPseudoClassId PreProc
-  HiLink cssPseudoClassLang Constant
-  HiLink cssValueLength Number
-  HiLink cssValueInteger Number
-  HiLink cssValueNumber Number
-  HiLink cssValueAngle Number
-  HiLink cssValueTime Number
-  HiLink cssValueFrequency Number
-  HiLink cssFunction Constant
-  HiLink cssURL String
-  HiLink cssFunctionName Function
-  HiLink cssFunctionComma Function
-  HiLink cssColor Constant
-  HiLink cssIdentifier Function
-  HiLink cssInclude Include
-  HiLink cssIncludeKeyword atKeyword
-  HiLink cssImportant Special
-  HiLink cssBraces Function
-  HiLink cssBraceError Error
-  HiLink cssError Error
-  HiLink cssUnicodeEscape Special
-  HiLink cssStringQQ String
-  HiLink cssStringQ String
-  HiLink cssAttributeSelector String
-  HiLink cssMedia atKeyword
-  HiLink cssMediaType Special
-  HiLink cssMediaComma Normal
-  HiLink cssMediaKeyword Statement
-  HiLink cssMediaProp cssProp
-  HiLink cssMediaAttr cssAttr
-  HiLink cssPage atKeyword
-  HiLink cssPagePseudo PreProc
-  HiLink cssPageMargin atKeyword
-  HiLink cssPageProp cssProp
-  HiLink cssKeyFrame atKeyword
-  HiLink cssKeyFrameSelector Constant
-  HiLink cssFontDescriptor Special
-  HiLink cssFontDescriptorFunction Constant
-  HiLink cssFontDescriptorProp cssProp
-  HiLink cssFontDescriptorAttr cssAttr
-  HiLink cssUnicodeRange Constant
-  HiLink cssClassName Function
-  HiLink cssClassNameDot Function
-  HiLink cssProp StorageClass
-  HiLink cssAttr Constant
-  HiLink cssUnitDecorators Number
-  HiLink cssNoise Noise
-  HiLink atKeyword PreProc
-  delcommand HiLink
-endif
+HiLink cssPseudoClassId PreProc
+HiLink cssPseudoClassLang Constant
+HiLink cssValueLength Number
+HiLink cssValueInteger Number
+HiLink cssValueNumber Number
+HiLink cssValueAngle Number
+HiLink cssValueTime Number
+HiLink cssValueFrequency Number
+HiLink cssFunction Constant
+HiLink cssURL String
+HiLink cssFunctionName Function
+HiLink cssFunctionComma Function
+HiLink cssColor Constant
+HiLink cssIdentifier Function
+HiLink cssInclude Include
+HiLink cssIncludeKeyword atKeyword
+HiLink cssImportant Special
+HiLink cssBraces Function
+HiLink cssBraceError Error
+HiLink cssError Error
+HiLink cssUnicodeEscape Special
+HiLink cssStringQQ String
+HiLink cssStringQ String
+HiLink cssAttributeSelector String
+HiLink cssMedia atKeyword
+HiLink cssMediaType Special
+HiLink cssMediaComma Normal
+HiLink cssMediaKeyword Statement
+HiLink cssMediaProp cssProp
+HiLink cssMediaAttr cssAttr
+HiLink cssPage atKeyword
+HiLink cssPagePseudo PreProc
+HiLink cssPageMargin atKeyword
+HiLink cssPageProp cssProp
+HiLink cssKeyFrame atKeyword
+HiLink cssKeyFrameSelector Constant
+HiLink cssFontDescriptor Special
+HiLink cssFontDescriptorFunction Constant
+HiLink cssFontDescriptorProp cssProp
+HiLink cssFontDescriptorAttr cssAttr
+HiLink cssUnicodeRange Constant
+HiLink cssClassName Function
+HiLink cssClassNameDot Function
+HiLink cssProp StorageClass
+HiLink cssAttr Constant
+HiLink cssUnitDecorators Number
+HiLink cssNoise Noise
+HiLink atKeyword PreProc
+delcommand HiLink
 
 let b:current_syntax = "css"
 
diff --git a/runtime/syntax/cterm.vim b/runtime/syntax/cterm.vim
--- a/runtime/syntax/cterm.vim
+++ b/runtime/syntax/cterm.vim
@@ -4,11 +4,8 @@
 " Last Change:	2002 Apr 13
 " Version Info: @(#)cterm.vim	1.7	97/12/15 09:23:14
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -142,48 +139,40 @@ syn match   ctermCharacter		"'[^\\]'"
 syn match   ctermSpecialCharacter	"'\\.'"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_cterm_syntax_inits")
-  if version < 508
-    let did_cterm_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink ctermStatement		Statement
-	HiLink ctermFunction		Statement
-	HiLink ctermStrFunction	Statement
-	HiLink ctermIntFunction	Statement
-	HiLink ctermLabel		Statement
-	HiLink ctermConditional	Statement
-	HiLink ctermRepeat		Statement
-	HiLink ctermLibFunc		UserDefFunc
-	HiLink ctermType		Type
-	HiLink ctermFuncArg		PreCondit
+HiLink ctermStatement		Statement
+HiLink ctermFunction		Statement
+HiLink ctermStrFunction	Statement
+HiLink ctermIntFunction	Statement
+HiLink ctermLabel		Statement
+HiLink ctermConditional	Statement
+HiLink ctermRepeat		Statement
+HiLink ctermLibFunc		UserDefFunc
+HiLink ctermType		Type
+HiLink ctermFuncArg		PreCondit
 
-	HiLink ctermPreVarRO		PreCondit
-	HiLink ctermPreVarRW		PreConditBold
-	HiLink ctermVar		Type
+HiLink ctermPreVarRO		PreCondit
+HiLink ctermPreVarRW		PreConditBold
+HiLink ctermVar		Type
 
-	HiLink ctermComment		Comment
+HiLink ctermComment		Comment
 
-	HiLink ctermCharacter		SpecialChar
-	HiLink ctermSpecial		Special
-	HiLink ctermSpecialCharacter	SpecialChar
-	HiLink ctermSymbols		Special
-	HiLink ctermString		String
-	HiLink ctermTodo		Todo
-	HiLink ctermOperator		Statement
-	HiLink ctermNumber		Number
+HiLink ctermCharacter		SpecialChar
+HiLink ctermSpecial		Special
+HiLink ctermSpecialCharacter	SpecialChar
+HiLink ctermSymbols		Special
+HiLink ctermString		String
+HiLink ctermTodo		Todo
+HiLink ctermOperator		Statement
+HiLink ctermNumber		Number
 
-	" redefine the colors
-	"hi PreConditBold	term=bold ctermfg=1 cterm=bold guifg=Purple gui=bold
-	"hi Special	term=bold ctermfg=6 guifg=SlateBlue gui=underline
+" redefine the colors
+"hi PreConditBold	term=bold ctermfg=1 cterm=bold guifg=Purple gui=bold
+"hi Special	term=bold ctermfg=6 guifg=SlateBlue gui=underline
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "cterm"
 
diff --git a/runtime/syntax/cuda.vim b/runtime/syntax/cuda.vim
--- a/runtime/syntax/cuda.vim
+++ b/runtime/syntax/cuda.vim
@@ -3,20 +3,13 @@
 " Maintainer:	Timothy B. Terriberry <tterribe@users.sourceforge.net>
 " Last Change:	2007 Oct 13
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " Read the C syntax to start with
-if version < 600
-  source <sfile>:p:h/c.vim
-else
-  runtime! syntax/c.vim
-endif
+runtime! syntax/c.vim
 
 " CUDA extentions
 syn keyword cudaStorageClass	__device__ __global__ __host__
diff --git a/runtime/syntax/cupl.vim b/runtime/syntax/cupl.vim
--- a/runtime/syntax/cupl.vim
+++ b/runtime/syntax/cupl.vim
@@ -3,11 +3,8 @@
 " Maintainer:	John Cook <johncook3@gmail.com>
 " Last Change:	2011 Dec 27
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -95,39 +92,31 @@ syn region cuplComment start=+/\*+ end=+
 syn sync minlines=1
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_cupl_syn_inits")
-  if version < 508
-    let did_cupl_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default highlighting.
-  HiLink cuplHeader	cuplStatement
-  HiLink cuplLogicalOperator	 cuplOperator
-  HiLink cuplRangeOperator	 cuplOperator
-  HiLink cuplArithmeticOperator cuplOperator
-  HiLink cuplAssignmentOperator cuplOperator
-  HiLink cuplEqualityOperator	 cuplOperator
-  HiLink cuplTruthTableOperator cuplOperator
-  HiLink cuplOperator	cuplStatement
-  HiLink cuplFunction	cuplStatement
-  HiLink cuplStatement Statement
-  HiLink cuplNumberRange cuplNumber
-  HiLink cuplNumber	  cuplString
-  HiLink cuplString	String
-  HiLink cuplComment	Comment
-  HiLink cuplExtension   cuplSpecial
-  HiLink cuplSpecialChar cuplSpecial
-  HiLink cuplSpecial	Special
-  HiLink cuplDirective PreProc
-  HiLink cuplTodo	Todo
+" The default highlighting.
+HiLink cuplHeader	cuplStatement
+HiLink cuplLogicalOperator	 cuplOperator
+HiLink cuplRangeOperator	 cuplOperator
+HiLink cuplArithmeticOperator cuplOperator
+HiLink cuplAssignmentOperator cuplOperator
+HiLink cuplEqualityOperator	 cuplOperator
+HiLink cuplTruthTableOperator cuplOperator
+HiLink cuplOperator	cuplStatement
+HiLink cuplFunction	cuplStatement
+HiLink cuplStatement Statement
+HiLink cuplNumberRange cuplNumber
+HiLink cuplNumber	  cuplString
+HiLink cuplString	String
+HiLink cuplComment	Comment
+HiLink cuplExtension   cuplSpecial
+HiLink cuplSpecialChar cuplSpecial
+HiLink cuplSpecial	Special
+HiLink cuplDirective PreProc
+HiLink cuplTodo	Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "cupl"
 
diff --git a/runtime/syntax/cuplsim.vim b/runtime/syntax/cuplsim.vim
--- a/runtime/syntax/cuplsim.vim
+++ b/runtime/syntax/cuplsim.vim
@@ -3,21 +3,14 @@
 " Maintainer:	John Cook <john.cook@kla-tencor.com>
 " Last Change:	2001 Apr 25
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " Read the CUPL syntax to start with
-if version < 600
-  source <sfile>:p:h/cupl.vim
-else
-  runtime! syntax/cupl.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/cupl.vim
+unlet b:current_syntax
 
 " omit definition-specific stuff
 syn clear cuplStatement
@@ -53,28 +46,20 @@ syn match cuplsimOutput +"\x\+"+
 syn sync minlines=1
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_cuplsim_syn_inits")
-  if version < 508
-    let did_cuplsim_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " append to the highlighting links in cupl.vim
-  " The default highlighting.
-  HiLink cuplsimOrder		cuplStatement
-  HiLink cuplsimBase		cuplStatement
-  HiLink cuplsimBaseType	cuplStatement
-  HiLink cuplsimVectors		cuplStatement
-  HiLink cuplsimStimulus	cuplNumber
-  HiLink cuplsimOutput		cuplNumber
-  HiLink cuplsimOrderFormat	cuplNumber
+" append to the highlighting links in cupl.vim
+" The default highlighting.
+HiLink cuplsimOrder		cuplStatement
+HiLink cuplsimBase		cuplStatement
+HiLink cuplsimBaseType	cuplStatement
+HiLink cuplsimVectors		cuplStatement
+HiLink cuplsimStimulus	cuplNumber
+HiLink cuplsimOutput		cuplNumber
+HiLink cuplsimOrderFormat	cuplNumber
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "cuplsim"
 " vim:ts=8
diff --git a/runtime/syntax/cvs.vim b/runtime/syntax/cvs.vim
--- a/runtime/syntax/cvs.vim
+++ b/runtime/syntax/cvs.vim
@@ -4,11 +4,8 @@
 " URL:		http://www.zotikos.com/downloads/cvs.vim
 " Last Change:	Sat Nov 24 23:25:11 CET 2001
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -20,24 +17,16 @@ syn region cvsCom start="Committing in" 
 syn match cvsDir   contained "\S\+$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_cvs_syn_inits")
-	if version < 508
-		let did_cvs_syn_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink cvsLine		Comment
-	HiLink cvsDir		cvsFile
-	HiLink cvsFile		Constant
-	HiLink cvsFiles		cvsCom
-	HiLink cvsTag		cvsCom
-	HiLink cvsCom		Statement
+HiLink cvsLine		Comment
+HiLink cvsDir		cvsFile
+HiLink cvsFile		Constant
+HiLink cvsFiles		cvsCom
+HiLink cvsTag		cvsCom
+HiLink cvsCom		Statement
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "cvs"
diff --git a/runtime/syntax/cweb.vim b/runtime/syntax/cweb.vim
--- a/runtime/syntax/cweb.vim
+++ b/runtime/syntax/cweb.vim
@@ -13,11 +13,8 @@
 " TODO: names, and leaves C/C++ comments as such. (On the other hand,
 " TODO: switching to TeX mode in C/C++ comments might be colour overkill.)
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -25,12 +22,8 @@ endif
 " level in the CWEB syntax, e.g., in the preamble.  In general, a CWEB source
 " code can be seen as a normal TeX document with some C/C++ material
 " interspersed in certain defined regions.
-if version < 600
-  source <sfile>:p:h/tex.vim
-else
-  runtime! syntax/tex.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/tex.vim
+unlet b:current_syntax
 
 " Read the C/C++ syntax too; C/C++ syntax items are treated as such in the
 " C/C++ section of a CWEB chunk or in inner C/C++ context in "|...|" groups.
@@ -63,20 +56,12 @@ syntax region webRestrictedTeX start="@[
 syntax match webIgnoredStuff "@@"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_cweb_syntax_inits")
-  if version < 508
-    let did_cweb_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink webRestrictedTeX String
+HiLink webRestrictedTeX String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "cweb"
 
diff --git a/runtime/syntax/cynlib.vim b/runtime/syntax/cynlib.vim
--- a/runtime/syntax/cynlib.vim
+++ b/runtime/syntax/cynlib.vim
@@ -15,22 +15,15 @@
 
 
 " Remove any old syntax stuff hanging around
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 
 
 " Read the C++ syntax to start with - this includes the C syntax
-if version < 600
-  source <sfile>:p:h/cpp.vim
-else
-  runtime! syntax/cpp.vim
-endif
+runtime! syntax/cpp.vim
 unlet b:current_syntax
 
 " Cynlib extensions
@@ -69,23 +62,15 @@ syn match       cynlibOperator     "<<="
 syn keyword	cynlibType	   In Out InST OutST Int Uint Const Cynclock
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_cynlib_syntax_inits")
-  if version < 508
-    let did_cynlib_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink cynlibOperator   Operator
-  HiLink cynlibMacro      Statement
-  HiLink cynlibFunction   Statement
-  HiLink cynlibppMacro      Statement
-  HiLink cynlibType       Type
+HiLink cynlibOperator   Operator
+HiLink cynlibMacro      Statement
+HiLink cynlibFunction   Statement
+HiLink cynlibppMacro      Statement
+HiLink cynlibType       Type
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "cynlib"
diff --git a/runtime/syntax/cynpp.vim b/runtime/syntax/cynpp.vim
--- a/runtime/syntax/cynpp.vim
+++ b/runtime/syntax/cynpp.vim
@@ -19,21 +19,13 @@
 
 
 
-" Remove any old syntax stuff hanging around
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " Read the Cynlib syntax to start with - this includes the C++ syntax
-if version < 600
-  source <sfile>:p:h/cynlib.vim
-else
-  runtime! syntax/cynlib.vim
-endif
+runtime! syntax/cynlib.vim
 unlet b:current_syntax
 
 
@@ -49,20 +41,12 @@ syn keyword     cynppMacro      Thread E
 syn keyword     cynppMacro      Instantiate
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_cynpp_syntax_inits")
-  if version < 508
-    let did_cynpp_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink cLabel		Label
-  HiLink cynppMacro  Statement
+HiLink cLabel		Label
+HiLink cynppMacro  Statement
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "cynpp"
diff --git a/runtime/syntax/datascript.vim b/runtime/syntax/datascript.vim
--- a/runtime/syntax/datascript.vim
+++ b/runtime/syntax/datascript.vim
@@ -8,9 +8,8 @@
 "
 " http://dstools.sourceforge.net/DataScriptLanguageOverview.html
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 let s:keepcpo= &cpo
diff --git a/runtime/syntax/dcd.vim b/runtime/syntax/dcd.vim
--- a/runtime/syntax/dcd.vim
+++ b/runtime/syntax/dcd.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Christopher Shinn <christopher@lucent.com>
 " Last Change:	2003 Apr 25
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -40,25 +37,17 @@ syn keyword dcdSpecial		PRV1 PRV2 PRV3 P
 syn region  dcdComment		start="\*" end="\;"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_dcd_syntax_inits")
-  if version < 508
-    let did_dcd_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink dcdFunction		Identifier
-  HiLink dcdLabel		Constant
-  HiLink dcdConditional		Conditional
-  HiLink dcdDisplay		Type
-  HiLink dcdStatement		Statement
-  HiLink dcdSpecial		Special
-  HiLink dcdComment		Comment
+HiLink dcdFunction		Identifier
+HiLink dcdLabel		Constant
+HiLink dcdConditional		Conditional
+HiLink dcdDisplay		Type
+HiLink dcdStatement		Statement
+HiLink dcdSpecial		Special
+HiLink dcdComment		Comment
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "dcd"
diff --git a/runtime/syntax/dcl.vim b/runtime/syntax/dcl.vim
--- a/runtime/syntax/dcl.vim
+++ b/runtime/syntax/dcl.vim
@@ -5,11 +5,8 @@
 " Version:	9
 " URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_DCL
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -114,50 +111,42 @@ syn region  dclFuncList	matchgroup=Delim
 syn match   dclError	")"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_dcl_syntax_inits")
-  if version < 508
-    let did_dcl_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
- HiLink dclLogOper	dclError
- HiLink dclLogical	dclOper
- HiLink dclLogSep	dclSep
+HiLink dclLogOper	dclError
+HiLink dclLogical	dclOper
+HiLink dclLogSep	dclSep
 
- HiLink dclAssign	Operator
- HiLink dclCmdProc	Special
- HiLink dclCmdProcStart	Operator
- HiLink dclComment	Comment
- HiLink dclContinue	Statement
- HiLink dclDevice	Identifier
- HiLink dclDirPath	Identifier
- HiLink dclDirPath	Identifier
- HiLink dclDirSep	Delimiter
- HiLink dclError	Error
- HiLink dclExe		Statement
- HiLink dclFilename	NONE
- HiLink dclGotoLabel	Label
- HiLink dclInstr	Statement
- HiLink dclLexical	Function
- HiLink dclMdfy	Type
- HiLink dclMdfyBrkt	Delimiter
- HiLink dclMdfySep	Delimiter
- HiLink dclMdfySet	Type
- HiLink dclMdfySetString	String
- HiLink dclNumber	Number
- HiLink dclOper	Operator
- HiLink dclParam	Special
- HiLink dclSep		Delimiter
- HiLink dclStart	Delimiter
- HiLink dclString	String
- HiLink dclTodo	Todo
+HiLink dclAssign	Operator
+HiLink dclCmdProc	Special
+HiLink dclCmdProcStart	Operator
+HiLink dclComment	Comment
+HiLink dclContinue	Statement
+HiLink dclDevice	Identifier
+HiLink dclDirPath	Identifier
+HiLink dclDirPath	Identifier
+HiLink dclDirSep	Delimiter
+HiLink dclError	Error
+HiLink dclExe		Statement
+HiLink dclFilename	NONE
+HiLink dclGotoLabel	Label
+HiLink dclInstr	Statement
+HiLink dclLexical	Function
+HiLink dclMdfy	Type
+HiLink dclMdfyBrkt	Delimiter
+HiLink dclMdfySep	Delimiter
+HiLink dclMdfySet	Type
+HiLink dclMdfySetString	String
+HiLink dclNumber	Number
+HiLink dclOper	Operator
+HiLink dclParam	Special
+HiLink dclSep		Delimiter
+HiLink dclStart	Delimiter
+HiLink dclString	String
+HiLink dclTodo	Todo
 
- delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "dcl"
 
diff --git a/runtime/syntax/debchangelog.vim b/runtime/syntax/debchangelog.vim
--- a/runtime/syntax/debchangelog.vim
+++ b/runtime/syntax/debchangelog.vim
@@ -7,9 +7,7 @@
 " URL: https://anonscm.debian.org/cgit/pkg-vim/vim.git/plain/runtime/syntax/debchangelog.vim
 
 " Standard syntax initialization
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+if exists("b:current_syntax")
   finish
 endif
 
@@ -36,28 +34,21 @@ syn region debchangelogFooter start="^ [
 syn region debchangelogEntry start="^  " end="$" contains=debchangelogCloses,debchangelogLP oneline
 
 " Associate our matches and regions with pretty colours
-if version >= 508 || !exists("did_debchangelog_syn_inits")
-  if version < 508
-    let did_debchangelog_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink debchangelogHeader		Error
-  HiLink debchangelogFooter		Identifier
-  HiLink debchangelogEntry		Normal
-  HiLink debchangelogCloses		Statement
-  HiLink debchangelogLP			Statement
-  HiLink debchangelogFirstKV		Identifier
-  HiLink debchangelogOtherKV		Identifier
-  HiLink debchangelogName		Comment
-  HiLink debchangelogVersion		Identifier
-  HiLink debchangelogTarget		Identifier
-  HiLink debchangelogEmail		Special
+HiLink debchangelogHeader		Error
+HiLink debchangelogFooter		Identifier
+HiLink debchangelogEntry		Normal
+HiLink debchangelogCloses		Statement
+HiLink debchangelogLP			Statement
+HiLink debchangelogFirstKV		Identifier
+HiLink debchangelogOtherKV		Identifier
+HiLink debchangelogName		Comment
+HiLink debchangelogVersion		Identifier
+HiLink debchangelogTarget		Identifier
+HiLink debchangelogEmail		Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "debchangelog"
 
diff --git a/runtime/syntax/debcontrol.vim b/runtime/syntax/debcontrol.vim
--- a/runtime/syntax/debcontrol.vim
+++ b/runtime/syntax/debcontrol.vim
@@ -7,9 +7,7 @@
 " URL: https://anonscm.debian.org/cgit/pkg-vim/vim.git/plain/runtime/syntax/debcontrol.vim
 
 " Standard syntax initialization
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+if exists("b:current_syntax")
   finish
 endif
 
@@ -86,37 +84,30 @@ syn region debcontrolMultiField start="^
 syn region debcontrolMultiFieldSpell start="^\%(Description\):" skip="^ " end="^$"me=s-1 end="^[^ #]"me=s-1 contains=debcontrolKey,debcontrolEmail,debcontrolVariable,debcontrolComment,@Spell
 
 " Associate our matches and regions with pretty colours
-if version >= 508 || !exists("did_debcontrol_syn_inits")
-  if version < 508
-    let did_debcontrol_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink debcontrolKey		Keyword
-  HiLink debcontrolField	Normal
-  HiLink debcontrolStrictField	Error
-  HiLink debcontrolDeprecatedKey	Error
-  HiLink debcontrolMultiField	Normal
-  HiLink debcontrolArchitecture	Normal
-  HiLink debcontrolMultiArch	Normal
-  HiLink debcontrolName		Normal
-  HiLink debcontrolPriority	Normal
-  HiLink debcontrolSection	Normal
-  HiLink debcontrolPackageType	Normal
-  HiLink debcontrolVariable	Identifier
-  HiLink debcontrolEmail	Identifier
-  HiLink debcontrolVcsSvn	Identifier
-  HiLink debcontrolVcsCvs	Identifier
-  HiLink debcontrolVcsGit	Identifier
-  HiLink debcontrolHTTPUrl	Identifier
-  HiLink debcontrolDmUpload	Identifier
-  HiLink debcontrolComment	Comment
-  HiLink debcontrolElse		Special
+HiLink debcontrolKey		Keyword
+HiLink debcontrolField	Normal
+HiLink debcontrolStrictField	Error
+HiLink debcontrolDeprecatedKey	Error
+HiLink debcontrolMultiField	Normal
+HiLink debcontrolArchitecture	Normal
+HiLink debcontrolMultiArch	Normal
+HiLink debcontrolName		Normal
+HiLink debcontrolPriority	Normal
+HiLink debcontrolSection	Normal
+HiLink debcontrolPackageType	Normal
+HiLink debcontrolVariable	Identifier
+HiLink debcontrolEmail	Identifier
+HiLink debcontrolVcsSvn	Identifier
+HiLink debcontrolVcsCvs	Identifier
+HiLink debcontrolVcsGit	Identifier
+HiLink debcontrolHTTPUrl	Identifier
+HiLink debcontrolDmUpload	Identifier
+HiLink debcontrolComment	Comment
+HiLink debcontrolElse		Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "debcontrol"
 
diff --git a/runtime/syntax/debsources.vim b/runtime/syntax/debsources.vim
--- a/runtime/syntax/debsources.vim
+++ b/runtime/syntax/debsources.vim
@@ -6,9 +6,7 @@
 " URL: https://anonscm.debian.org/cgit/pkg-vim/vim.git/plain/runtime/syntax/debsources.vim
 
 " Standard syntax initialization
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/def.vim b/runtime/syntax/def.vim
--- a/runtime/syntax/def.vim
+++ b/runtime/syntax/def.vim
@@ -5,11 +5,8 @@
 " Last Change:	$Date: 2007/10/02 13:51:24 $
 " $Revision: 1.2 $
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -32,25 +29,17 @@ syn match   defNumber	"0x\x\+"
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_def_syntax_inits")
-  if version < 508
-    let did_def_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink defComment	Comment
-  HiLink defKeyword	Keyword
-  HiLink defStorage	StorageClass
-  HiLink defString	String
-  HiLink defNumber	Number
-  HiLink defOrdinal	Operator
+HiLink defComment	Comment
+HiLink defKeyword	Keyword
+HiLink defStorage	StorageClass
+HiLink defString	String
+HiLink defNumber	Number
+HiLink defOrdinal	Operator
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "def"
 
diff --git a/runtime/syntax/desc.vim b/runtime/syntax/desc.vim
--- a/runtime/syntax/desc.vim
+++ b/runtime/syntax/desc.vim
@@ -3,11 +3,8 @@
 " Maintainer:	René Rebe <rene@exactcode.de>, Piotr Esden-Tempski <esden@rocklinux.org>
 " Last Change:	2006 Aug 14
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -63,40 +60,31 @@ syn region descTagRegion start=/^\[\(F\|
 
 syn region descTagRegion start=/^\[\(L\|LICENSE\)\]/ end=/$/ contains=descTag,descLicense
 
-" For version 5.7 and earlier: only when not done already
-" Define the default highlighting.
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_desc_syntax_inits")
-  if version < 508
-    let did_desc_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink descFlag		Identifier
-  HiLink descLicense		Identifier
-  HiLink descCategory		Identifier
+HiLink descFlag		Identifier
+HiLink descLicense		Identifier
+HiLink descCategory		Identifier
+
+HiLink descTag		Type
+HiLink descUrl		Underlined
+HiLink descEmail		Underlined
 
-  HiLink descTag		Type
-  HiLink descUrl		Underlined
-  HiLink descEmail		Underlined
+" priority tag colors
+HiLink descInstallX		Boolean
+HiLink descInstallO		Type
+HiLink descDash		Operator
+HiLink descDigit		Number
+HiLink descCompilePriority	Number
 
-  " priority tag colors
-  HiLink descInstallX		Boolean
-  HiLink descInstallO		Type
-  HiLink descDash		Operator
-  HiLink descDigit		Number
-  HiLink descCompilePriority	Number
+" download tag colors
+HiLink descSum		Number
+HiLink descTarball		Underlined
 
-  " download tag colors
-  HiLink descSum		Number
-  HiLink descTarball		Underlined
+" tag region colors
+HiLink descText		Comment
 
-  " tag region colors
-  HiLink descText		Comment
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "desc"
diff --git a/runtime/syntax/desktop.vim b/runtime/syntax/desktop.vim
--- a/runtime/syntax/desktop.vim
+++ b/runtime/syntax/desktop.vim
@@ -7,11 +7,8 @@
 " 		(added "Keywords")
 " Version Info: desktop.vim 0.9.4-1.2
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -79,41 +76,33 @@ syn match   dtALocale /\[.\{-}\]\s*=\@=/
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_desktop_syntax_inits")
-	if version < 508
-		let did_dosini_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink dtGroup		 Special
+HiLink dtComment	 Comment
+HiLink dtDelim		 String
 
-	HiLink dtGroup		 Special
-	HiLink dtComment	 Comment
-	HiLink dtDelim		 String
+HiLink dtLocaleKey	 Type
+HiLink dtLocaleName	 Identifier
+HiLink dtXLocale	 Identifier
+HiLink dtALocale	 Identifier
+
+HiLink dtNumericKey	 Type
 
-	HiLink dtLocaleKey	 Type
-	HiLink dtLocaleName	 Identifier
-	HiLink dtXLocale	 Identifier
-	HiLink dtALocale	 Identifier
+HiLink dtBooleanKey	 Type
+HiLink dtBooleanValue	 Constant
 
-	HiLink dtNumericKey	 Type
-
-	HiLink dtBooleanKey	 Type
-	HiLink dtBooleanValue	 Constant
+HiLink dtStringKey	 Type
 
-	HiLink dtStringKey	 Type
+HiLink dtExecKey	 Type
+HiLink dtExecParam	 Special
+HiLink dtTypeKey	 Type
+HiLink dtTypeValue	 Constant
+HiLink dtNotStLabel	 Type
+HiLink dtXAddKey	 Type
 
-	HiLink dtExecKey	 Type
-	HiLink dtExecParam	 Special
-	HiLink dtTypeKey	 Type
-	HiLink dtTypeValue	 Constant
-	HiLink dtNotStLabel	 Type
-	HiLink dtXAddKey	 Type
-
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "desktop"
 
diff --git a/runtime/syntax/diva.vim b/runtime/syntax/diva.vim
--- a/runtime/syntax/diva.vim
+++ b/runtime/syntax/diva.vim
@@ -11,11 +11,7 @@
 " Don't remove any old syntax stuff hanging around! We need stuff
 " from skill.vim.
 if !exists("did_skill_syntax_inits")
-  if version < 600
-	so <sfile>:p:h/skill.vim
-  else
-    runtime! syntax/skill.vim
-  endif
+  runtime! syntax/skill.vim
 endif
 
 syn keyword divaDRCKeywords		area enc notch ovlp sep width
@@ -81,29 +77,21 @@ syn match divaGeomFunctions		"(geom\u\a\
 syn match divaGeomFunctions		"\<geom\u\a\+\(45\|90\)\=("he=e-1
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_diva_syntax_inits")
-	if version < 508
-		let did_diva_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink divaDRCKeywords		Statement
-	HiLink divaMeasKeywords		Statement
-	HiLink divaCtrlFunctions	Conditional
-	HiLink divaExtFunctions		Function
-	HiLink divaDRCFunctions		Function
-	HiLink divaFunctions		Function
-	HiLink divaLayerFunctions	Function
-	HiLink divaChkFunctions		Function
-	HiLink divaLVSFunctions		Function
-	HiLink divaGeomFunctions	Function
+HiLink divaDRCKeywords		Statement
+HiLink divaMeasKeywords		Statement
+HiLink divaCtrlFunctions	Conditional
+HiLink divaExtFunctions		Function
+HiLink divaDRCFunctions		Function
+HiLink divaFunctions		Function
+HiLink divaLayerFunctions	Function
+HiLink divaChkFunctions		Function
+HiLink divaLVSFunctions		Function
+HiLink divaGeomFunctions	Function
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "diva"
 
diff --git a/runtime/syntax/django.vim b/runtime/syntax/django.vim
--- a/runtime/syntax/django.vim
+++ b/runtime/syntax/django.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Dave Hodder <dmh@dmh.org.uk>
 " Last Change:	2014 Jul 13
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -68,29 +65,21 @@ syn region djangoComment start="{%\s*com
 syn region djangoComBlock start="{#" end="#}" contains=djangoTodo
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_django_syn_inits")
-  if version < 508
-    let did_django_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink djangoTagBlock PreProc
-  HiLink djangoVarBlock PreProc
-  HiLink djangoStatement Statement
-  HiLink djangoFilter Identifier
-  HiLink djangoArgument Constant
-  HiLink djangoTagError Error
-  HiLink djangoVarError Error
-  HiLink djangoError Error
-  HiLink djangoComment Comment
-  HiLink djangoComBlock Comment
-  HiLink djangoTodo Todo
+HiLink djangoTagBlock PreProc
+HiLink djangoVarBlock PreProc
+HiLink djangoStatement Statement
+HiLink djangoFilter Identifier
+HiLink djangoArgument Constant
+HiLink djangoTagError Error
+HiLink djangoVarError Error
+HiLink djangoError Error
+HiLink djangoComment Comment
+HiLink djangoComBlock Comment
+HiLink djangoTodo Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "django"
diff --git a/runtime/syntax/dnsmasq.vim b/runtime/syntax/dnsmasq.vim
--- a/runtime/syntax/dnsmasq.vim
+++ b/runtime/syntax/dnsmasq.vim
@@ -20,10 +20,8 @@
 "		endif
 "
 
-" For version 5.x: Clear all syntax items
-if v:version < 600
-    syntax clear
-elseif exists("b:current_syntax") || &compatible
+" quit when a syntax file was already loaded
+if exists("b:current_syntax") || &compatible
     finish
 endif
 
diff --git a/runtime/syntax/docbk.vim b/runtime/syntax/docbk.vim
--- a/runtime/syntax/docbk.vim
+++ b/runtime/syntax/docbk.vim
@@ -13,11 +13,8 @@
 "   http://www.open-oasis.org/docbook/
 "
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -174,26 +171,17 @@ syn region docbkRemark start="<comment>"
 syn region docbkCite   start="<citation>"lc=10 end="</citation>"me=e-11 contains=xmlRegion,xmlEntity,sgmlRegion,sgmlEntity keepend
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_docbk_syn_inits")
-  if version < 508
-    let did_docbk_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-    hi DocbkBold term=bold cterm=bold gui=bold
-  else
-    command -nargs=+ HiLink hi def link <args>
-    hi def DocbkBold term=bold cterm=bold gui=bold
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+hi def DocbkBold term=bold cterm=bold gui=bold
 
-  HiLink docbkKeyword	Statement
-  HiLink docbkRegion	DocbkBold
-  HiLink docbkTitle	Title
-  HiLink docbkRemark	Comment
-  HiLink docbkCite	Constant
+HiLink docbkKeyword	Statement
+HiLink docbkRegion	DocbkBold
+HiLink docbkTitle	Title
+HiLink docbkRemark	Comment
+HiLink docbkCite	Constant
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "docbk"
 
diff --git a/runtime/syntax/dosbatch.vim b/runtime/syntax/dosbatch.vim
--- a/runtime/syntax/dosbatch.vim
+++ b/runtime/syntax/dosbatch.vim
@@ -9,11 +9,8 @@
 " dosbatch_cmdextversion	- 1 = Windows NT, 2 = Windows 2000 [default]
 "
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -111,49 +108,41 @@ syn keyword dosbatchImplicit    sort sta
 syn keyword dosbatchImplicit    vol xcopy
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_dosbatch_syntax_inits")
-  if version < 508
-    let did_dosbatch_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink dosbatchTodo		Todo
 
-  HiLink dosbatchTodo		Todo
+HiLink dosbatchStatement	Statement
+HiLink dosbatchCommands	dosbatchStatement
+HiLink dosbatchLabel		Label
+HiLink dosbatchConditional	Conditional
+HiLink dosbatchRepeat		Repeat
 
-  HiLink dosbatchStatement	Statement
-  HiLink dosbatchCommands	dosbatchStatement
-  HiLink dosbatchLabel		Label
-  HiLink dosbatchConditional	Conditional
-  HiLink dosbatchRepeat		Repeat
-
-  HiLink dosbatchOperator       Operator
-  HiLink dosbatchEchoOperator   dosbatchOperator
-  HiLink dosbatchIfOperator     dosbatchOperator
+HiLink dosbatchOperator       Operator
+HiLink dosbatchEchoOperator   dosbatchOperator
+HiLink dosbatchIfOperator     dosbatchOperator
 
-  HiLink dosbatchArgument	Identifier
-  HiLink dosbatchIdentifier     Identifier
-  HiLink dosbatchVariable	dosbatchIdentifier
+HiLink dosbatchArgument	Identifier
+HiLink dosbatchIdentifier     Identifier
+HiLink dosbatchVariable	dosbatchIdentifier
 
-  HiLink dosbatchSpecialChar	SpecialChar
-  HiLink dosbatchString		String
-  HiLink dosbatchNumber		Number
-  HiLink dosbatchInteger	dosbatchNumber
-  HiLink dosbatchHex		dosbatchNumber
-  HiLink dosbatchBinary		dosbatchNumber
-  HiLink dosbatchOctal		dosbatchNumber
+HiLink dosbatchSpecialChar	SpecialChar
+HiLink dosbatchString		String
+HiLink dosbatchNumber		Number
+HiLink dosbatchInteger	dosbatchNumber
+HiLink dosbatchHex		dosbatchNumber
+HiLink dosbatchBinary		dosbatchNumber
+HiLink dosbatchOctal		dosbatchNumber
 
-  HiLink dosbatchComment	Comment
-  HiLink dosbatchImplicit	Function
-
-  HiLink dosbatchSwitch		Special
+HiLink dosbatchComment	Comment
+HiLink dosbatchImplicit	Function
 
-  HiLink dosbatchCmd		PreProc
+HiLink dosbatchSwitch		Special
 
-  delcommand HiLink
-endif
+HiLink dosbatchCmd		PreProc
+
+delcommand HiLink
 
 let b:current_syntax = "dosbatch"
 
diff --git a/runtime/syntax/dosini.vim b/runtime/syntax/dosini.vim
--- a/runtime/syntax/dosini.vim
+++ b/runtime/syntax/dosini.vim
@@ -9,11 +9,8 @@
 " Last Change:            2011 Nov 8
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -28,23 +25,15 @@ syn region dosiniHeader   start="^\s*\["
 syn match  dosiniComment  "^[#;].*$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_dosini_syntax_inits")
-  if version < 508
-    let did_dosini_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink dosiniNumber   Number
-  HiLink dosiniHeader   Special
-  HiLink dosiniComment  Comment
-  HiLink dosiniLabel    Type
+HiLink dosiniNumber   Number
+HiLink dosiniHeader   Special
+HiLink dosiniComment  Comment
+HiLink dosiniLabel    Type
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "dosini"
 
diff --git a/runtime/syntax/dot.vim b/runtime/syntax/dot.vim
--- a/runtime/syntax/dot.vim
+++ b/runtime/syntax/dot.vim
@@ -6,11 +6,8 @@
 " Last Change:  2011 May 17 - improved identifier matching + two new keywords
 "               2001 May 04 - initial version
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -74,36 +71,28 @@ syn sync minlines=50
 syn sync maxlines=500
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_dot_syntax_inits")
-  if version < 508
-    let did_dot_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink dotParErr	 Error
-  HiLink dotBraceErr	 Error
-  HiLink dotBrackErr	 Error
+HiLink dotParErr	 Error
+HiLink dotBraceErr	 Error
+HiLink dotBrackErr	 Error
+
+HiLink dotComment	 Comment
+HiLink dotTodo	 Todo
 
-  HiLink dotComment	 Comment
-  HiLink dotTodo	 Todo
-
-  HiLink dotParEncl	 Keyword
-  HiLink dotBrackEncl	 Keyword
-  HiLink dotBraceEncl	 Keyword
+HiLink dotParEncl	 Keyword
+HiLink dotBrackEncl	 Keyword
+HiLink dotBraceEncl	 Keyword
 
-  HiLink dotKeyword	 Keyword
-  HiLink dotType	 Type
-  HiLink dotKeyChar	 Keyword
+HiLink dotKeyword	 Keyword
+HiLink dotType	 Type
+HiLink dotKeyChar	 Keyword
 
-  HiLink dotString	 String
-  HiLink dotIdentifier	 Identifier
+HiLink dotString	 String
+HiLink dotIdentifier	 Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "dot"
 
diff --git a/runtime/syntax/dracula.vim b/runtime/syntax/dracula.vim
--- a/runtime/syntax/dracula.vim
+++ b/runtime/syntax/dracula.vim
@@ -8,11 +8,8 @@
 "		the purposes of Design Rule Checking, Layout vs. Schematic
 "		verification, and Layout Parameter Extraction.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -61,24 +58,16 @@ syn match   draculaPreProc "^#.*"
 syn sync lines=50
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_dracula_syn_inits")
-  if version < 508
-    let did_dracula_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink draculaIdentifier Identifier
-  HiLink draculaStatement  Statement
-  HiLink draculaType       Type
-  HiLink draculaComment    Comment
-  HiLink draculaPreProc    PreProc
+HiLink draculaIdentifier Identifier
+HiLink draculaStatement  Statement
+HiLink draculaType       Type
+HiLink draculaComment    Comment
+HiLink draculaPreProc    PreProc
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "dracula"
 
diff --git a/runtime/syntax/dtd.vim b/runtime/syntax/dtd.vim
--- a/runtime/syntax/dtd.vim
+++ b/runtime/syntax/dtd.vim
@@ -126,41 +126,33 @@ syn keyword dtdTodo contained TODO FIXME
 syn sync lines=250
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_dtd_syn_inits")
-    if version < 508
-	let did_dtd_syn_inits = 1
-	command -nargs=+ HiLink hi link <args>
-    else
-	command -nargs=+ HiLink hi def link <args>
-    endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+" The default highlighting.
+HiLink dtdFunction		Function
+HiLink dtdTag		Normal
+HiLink dtdType		Type
+HiLink dtdAttrType		dtdType
+HiLink dtdAttrDef		dtdType
+HiLink dtdConstant		Constant
+HiLink dtdString		dtdConstant
+HiLink dtdEnum		dtdConstant
+HiLink dtdCard		dtdFunction
 
-    " The default highlighting.
-    HiLink dtdFunction		Function
-    HiLink dtdTag		Normal
-    HiLink dtdType		Type
-    HiLink dtdAttrType		dtdType
-    HiLink dtdAttrDef		dtdType
-    HiLink dtdConstant		Constant
-    HiLink dtdString		dtdConstant
-    HiLink dtdEnum		dtdConstant
-    HiLink dtdCard		dtdFunction
+HiLink dtdEntity		Statement
+HiLink dtdEntityPunct	dtdType
+HiLink dtdParamEntityInst	dtdConstant
+HiLink dtdParamEntityPunct	dtdType
+HiLink dtdParamEntityDecl	dtdType
+HiLink dtdParamEntityDPunct dtdComment
 
-    HiLink dtdEntity		Statement
-    HiLink dtdEntityPunct	dtdType
-    HiLink dtdParamEntityInst	dtdConstant
-    HiLink dtdParamEntityPunct	dtdType
-    HiLink dtdParamEntityDecl	dtdType
-    HiLink dtdParamEntityDPunct dtdComment
+HiLink dtdComment		Comment
+HiLink dtdTagName		Statement
+HiLink dtdError		Error
+HiLink dtdTodo		Todo
 
-    HiLink dtdComment		Comment
-    HiLink dtdTagName		Statement
-    HiLink dtdError		Error
-    HiLink dtdTodo		Todo
-
-    delcommand HiLink
-endif
+delcommand HiLink
 
 let &cpo = s:dtd_cpo_save
 unlet s:dtd_cpo_save
diff --git a/runtime/syntax/dtml.vim b/runtime/syntax/dtml.vim
--- a/runtime/syntax/dtml.vim
+++ b/runtime/syntax/dtml.vim
@@ -9,20 +9,13 @@
 " hacked out of the Zope Quick Reference in case someone finds something
 " sensible to do with them. I certainly haven't.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " First load the HTML syntax
-if version < 600
-  source <sfile>:p:h/html.vim
-else
-  runtime! syntax/html.vim
-endif
+runtime! syntax/html.vim
 
 syn case match
 
@@ -196,25 +189,17 @@ syn match   htmlTagN     contained +<\s*
 syn match   htmlTagN     contained +</\s*[-a-zA-Z0-9]\++hs=s+2 contains=htmlTagName,htmlSpecialTagName,dtmlIsTag,dtmlAttribute,dtmlMethod,@htmlTagNameCluster
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_dtml_syntax_inits")
-  if version < 508
-    let did_dtml_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink dtmlIsTag			PreProc
-  HiLink dtmlAttribute		Identifier
-  HiLink dtmlMethod			Function
-  HiLink dtmlComment		Comment
-  HiLink dtmlTODO			Todo
-  HiLink dtmlSpecialChar    Special
+HiLink dtmlIsTag			PreProc
+HiLink dtmlAttribute		Identifier
+HiLink dtmlMethod			Function
+HiLink dtmlComment		Comment
+HiLink dtmlTODO			Todo
+HiLink dtmlSpecialChar    Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "dtml"
 
diff --git a/runtime/syntax/dtrace.vim b/runtime/syntax/dtrace.vim
--- a/runtime/syntax/dtrace.vim
+++ b/runtime/syntax/dtrace.vim
@@ -10,19 +10,14 @@
 " http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libdtrace/common/dt_lex.l
 " http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libdtrace/common/dt_grammar.y
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " Read the C syntax to start with
-if version < 600
-  so <sfile>:p:h/c.vim
-else
-  runtime! syntax/c.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/c.vim
+unlet b:current_syntax
 
 syn clear cCommentL  " dtrace doesn't support // style comments
 
diff --git a/runtime/syntax/dylan.vim b/runtime/syntax/dylan.vim
--- a/runtime/syntax/dylan.vim
+++ b/runtime/syntax/dylan.vim
@@ -8,21 +8,14 @@
 " syntax files.
 
 " Part 1:  Syntax definition
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 syn case ignore
 
-if version < 600
-  set lisp
-else
-  setlocal lisp
-endif
+setlocal lisp
 
 " Highlight special characters (those that have backslashes) differently
 syn match	dylanSpecial		display contained "\\\(x\x\+\|\o\{1,3}\|.\|$\)"
@@ -67,42 +60,34 @@ syn region	dylanPrecondit		start="^\s*#\
 syn region	dylanHeader	start="^[Mm]odule:" end="^$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_dylan_syntax_inits")
-  if version < 508
-    let did_dylan_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink dylanBlock		PreProc
-  HiLink dylanBoolean		Boolean
-  HiLink dylanCharacter		Character
-  HiLink dylanClass		Structure
-  HiLink dylanClassMods		StorageClass
-  HiLink dylanComment		Comment
-  HiLink dylanConditional	Conditional
-  HiLink dylanConstant		Constant
-  HiLink dylanException		Exception
-  HiLink dylanHeader		Macro
-  HiLink dylanImport		Include
-  HiLink dylanLabel		Label
-  HiLink dylanMiscMods		StorageClass
-  HiLink dylanNumber		Number
-  HiLink dylanOther		Keyword
-  HiLink dylanOperator		Operator
-  HiLink dylanParamDefs		Keyword
-  HiLink dylanPrecondit		PreCondit
-  HiLink dylanRepeat		Repeat
-  HiLink dylanSimpleDefs	Keyword
-  HiLink dylanStatement		Macro
-  HiLink dylanString		String
-  HiLink dylanVariable		Identifier
+HiLink dylanBlock		PreProc
+HiLink dylanBoolean		Boolean
+HiLink dylanCharacter		Character
+HiLink dylanClass		Structure
+HiLink dylanClassMods		StorageClass
+HiLink dylanComment		Comment
+HiLink dylanConditional	Conditional
+HiLink dylanConstant		Constant
+HiLink dylanException		Exception
+HiLink dylanHeader		Macro
+HiLink dylanImport		Include
+HiLink dylanLabel		Label
+HiLink dylanMiscMods		StorageClass
+HiLink dylanNumber		Number
+HiLink dylanOther		Keyword
+HiLink dylanOperator		Operator
+HiLink dylanParamDefs		Keyword
+HiLink dylanPrecondit		PreCondit
+HiLink dylanRepeat		Repeat
+HiLink dylanSimpleDefs	Keyword
+HiLink dylanStatement		Macro
+HiLink dylanString		String
+HiLink dylanVariable		Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "dylan"
 
diff --git a/runtime/syntax/dylanintr.vim b/runtime/syntax/dylanintr.vim
--- a/runtime/syntax/dylanintr.vim
+++ b/runtime/syntax/dylanintr.vim
@@ -4,11 +4,8 @@
 " Last Change:	Fri Sep 29 13:53:27 PDT 2000
 "
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -26,26 +23,18 @@ syn match	dylanintrInclude	"^\s*#\s*incl
 "syn keyword intrMods pointer struct
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_dylan_intr_syntax_inits")
-  if version < 508
-    let did_dylan_intr_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink dylanintrInfo		Special
-  HiLink dylanintrInterface	Operator
-  HiLink dylanintrMods		Type
-  HiLink dylanintrClass		StorageClass
-  HiLink dylanintrType		Type
-  HiLink dylanintrIncluded	String
-  HiLink dylanintrInclude	Include
+HiLink dylanintrInfo		Special
+HiLink dylanintrInterface	Operator
+HiLink dylanintrMods		Type
+HiLink dylanintrClass		StorageClass
+HiLink dylanintrType		Type
+HiLink dylanintrIncluded	String
+HiLink dylanintrInclude	Include
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "dylanintr"
 
diff --git a/runtime/syntax/dylanlid.vim b/runtime/syntax/dylanlid.vim
--- a/runtime/syntax/dylanlid.vim
+++ b/runtime/syntax/dylanlid.vim
@@ -5,11 +5,8 @@
 " Last Change:	Fri Sep 29 13:50:20 PDT 2000
 "
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -21,21 +18,13 @@ syn region	dylanlidEntry		matchgroup=Sta
 syn sync	lines=50
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_dylan_lid_syntax_inits")
-  if version < 508
-    let did_dylan_lid_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink dylanlidInfo		Type
-  HiLink dylanlidEntry		String
+HiLink dylanlidInfo		Type
+HiLink dylanlidEntry		String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "dylanlid"
 
diff --git a/runtime/syntax/ecd.vim b/runtime/syntax/ecd.vim
--- a/runtime/syntax/ecd.vim
+++ b/runtime/syntax/ecd.vim
@@ -8,10 +8,8 @@
 " This syntax file was derived from apachestyle.vim
 " by Christian Hammers <ch@westend.com>
 
-" Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -31,26 +29,18 @@ syn match  ecdTagN	contained +<[/\s]*[-a
 syn match  ecdTagError	contained "[^>]<"ms=s+1
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_ecd_syn_inits")
-  if version < 508
-    let did_ecd_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink ecdComment	Comment
-  HiLink ecdAttr	Type
-  HiLink ecdAttrN	Statement
-  HiLink ecdAttrV	Value
-  HiLink ecdTag		Function
-  HiLink ecdTagN	Statement
-  HiLink ecdTagError	Error
+HiLink ecdComment	Comment
+HiLink ecdAttr	Type
+HiLink ecdAttrN	Statement
+HiLink ecdAttrV	Value
+HiLink ecdTag		Function
+HiLink ecdTagN	Statement
+HiLink ecdTagError	Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "ecd"
 " vim: ts=8
diff --git a/runtime/syntax/edif.vim b/runtime/syntax/edif.vim
--- a/runtime/syntax/edif.vim
+++ b/runtime/syntax/edif.vim
@@ -8,18 +8,12 @@
 "   IEC 61690-1 (EDIF Version 3 0 0)
 "   IEC 61690-2 (EDIF Version 4 0 0)
 
-" Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
-if version >= 600
- setlocal iskeyword=48-57,-,+,A-Z,a-z,_,&
-else
- set iskeyword=A-Z,a-z,_,&
-endif
+setlocal iskeyword=48-57,-,+,A-Z,a-z,_,&
 
 syn region	edifList	matchgroup=Delimiter start="(" end=")" contains=edifList,edifKeyword,edifString,edifNumber
 
@@ -37,28 +31,17 @@ syn match       edifKeyword     "(\@<=\s
 syn match       edifError       ")"
 
 " synchronization
-if version < 600
-  syntax sync maxlines=250
-else
-  syntax sync fromstart
-endif
+syntax sync fromstart
 
 " Define the default highlighting.
-if version >= 508 || !exists("did_edif_syntax_inits")
-  if version < 508
-    let did_edif_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink edifInString		SpecialChar
-  HiLink edifKeyword		Keyword
-  HiLink edifNumber		Number
-  HiLink edifInStringError	edifError
-  HiLink edifError		Error
-  HiLink edifString		String
-  delcommand HiLink
-endif
+HiLink edifInString		SpecialChar
+HiLink edifKeyword		Keyword
+HiLink edifNumber		Number
+HiLink edifInStringError	edifError
+HiLink edifError		Error
+HiLink edifString		String
+delcommand HiLink
 
 let b:current_syntax = "edif"
diff --git a/runtime/syntax/eiffel.vim b/runtime/syntax/eiffel.vim
--- a/runtime/syntax/eiffel.vim
+++ b/runtime/syntax/eiffel.vim
@@ -5,11 +5,8 @@
 " Contributions from: Thilo Six
 " 
 " URL: https://github.com/eiffelhub/vim-eiffel
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -141,68 +138,60 @@ endif
 syn sync lines=40
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_eiffel_syntax_inits")
-  if version < 508
-    let did_eiffel_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink eiffelKeyword		Statement
-  HiLink eiffelProperty		Statement
-  HiLink eiffelInheritClause	Statement
-  HiLink eiffelStatement	Statement
-  HiLink eiffelDeclaration	Statement
-  HiLink eiffelAssertion	Statement
-  HiLink eiffelDebug		Statement
-  HiLink eiffelException	Statement
-  HiLink eiffelGenericCreate	Statement
+HiLink eiffelKeyword		Statement
+HiLink eiffelProperty		Statement
+HiLink eiffelInheritClause	Statement
+HiLink eiffelStatement	Statement
+HiLink eiffelDeclaration	Statement
+HiLink eiffelAssertion	Statement
+HiLink eiffelDebug		Statement
+HiLink eiffelException	Statement
+HiLink eiffelGenericCreate	Statement
 
-  HiLink eiffelAgent		Statement
-  HiLink eiffelConvert		Statement
+HiLink eiffelAgent		Statement
+HiLink eiffelConvert		Statement
 
-  HiLink eiffelTopStruct	PreProc
+HiLink eiffelTopStruct	PreProc
 
-  HiLink eiffelAll		Special
-  HiLink eiffelAnchored		Special
-  HiLink eiffelBitType		Special
+HiLink eiffelAll		Special
+HiLink eiffelAnchored		Special
+HiLink eiffelBitType		Special
 
 
-  HiLink eiffelBool		Boolean
-  HiLink eiffelString		String
-  HiLink eiffelCharacter	Character
-  HiLink eiffelClassName	Type
-  HiLink eiffelNumber		Number
+HiLink eiffelBool		Boolean
+HiLink eiffelString		String
+HiLink eiffelCharacter	Character
+HiLink eiffelClassName	Type
+HiLink eiffelNumber		Number
 
-  HiLink eiffelStringEscape	Special
+HiLink eiffelStringEscape	Special
 
-  HiLink eiffelOperator		Special
-  HiLink eiffelArray		Special
-  HiLink eiffelExport		Special
-  HiLink eiffelCreation		Special
-  HiLink eiffelBrackets		Special
-  HiLink eiffelGeneric		Special
-  HiLink eiffelGenericDecl	Special
-  HiLink eiffelConstraint	Special
-  HiLink eiffelCreate		Special
+HiLink eiffelOperator		Special
+HiLink eiffelArray		Special
+HiLink eiffelExport		Special
+HiLink eiffelCreation		Special
+HiLink eiffelBrackets		Special
+HiLink eiffelGeneric		Special
+HiLink eiffelGenericDecl	Special
+HiLink eiffelConstraint	Special
+HiLink eiffelCreate		Special
 
-  HiLink eiffelPredefined	Constant
+HiLink eiffelPredefined	Constant
 
-  HiLink eiffelComment		Comment
+HiLink eiffelComment		Comment
 
-  HiLink eiffelError		Error
-  HiLink eiffelBadConstant	Error
-  HiLink eiffelStringError	Error
-  HiLink eiffelParenError	Error
-  HiLink eiffelBracketError	Error
+HiLink eiffelError		Error
+HiLink eiffelBadConstant	Error
+HiLink eiffelStringError	Error
+HiLink eiffelParenError	Error
+HiLink eiffelBracketError	Error
 
-  HiLink eiffelTodo		Todo
+HiLink eiffelTodo		Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "eiffel"
 
diff --git a/runtime/syntax/elf.vim b/runtime/syntax/elf.vim
--- a/runtime/syntax/elf.vim
+++ b/runtime/syntax/elf.vim
@@ -10,11 +10,8 @@
 "      This is the Applix Inc., Macro and Builder programming language.
 "      It has nothing in common with the binary format called ELF.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -63,32 +60,24 @@ syn match elfParens "[\[\]()]"
 syn match elfPunct "[,;]"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_elf_syn_inits")
-	if version < 508
-		let did_elf_syn_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-   endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting. Can be overridden later.
-  HiLink elfComment Comment
-  HiLink elfPPCom Include
-  HiLink elfKeyword Keyword
-  HiLink elfSpecial Special
-  HiLink elfEnvironment Special
-  HiLink elfBraceError Error
-  HiLink elfConditional Conditional
-  HiLink elfMacro Function
-  HiLink elfNumber Number
-  HiLink elfString String
-  HiLink elfParens Delimiter
-  HiLink elfPunct Delimiter
+" The default methods for highlighting. Can be overridden later.
+HiLink elfComment Comment
+HiLink elfPPCom Include
+HiLink elfKeyword Keyword
+HiLink elfSpecial Special
+HiLink elfEnvironment Special
+HiLink elfBraceError Error
+HiLink elfConditional Conditional
+HiLink elfMacro Function
+HiLink elfNumber Number
+HiLink elfString String
+HiLink elfParens Delimiter
+HiLink elfPunct Delimiter
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "elf"
 
diff --git a/runtime/syntax/elmfilt.vim b/runtime/syntax/elmfilt.vim
--- a/runtime/syntax/elmfilt.vim
+++ b/runtime/syntax/elmfilt.vim
@@ -5,11 +5,8 @@
 " Version:	6
 " URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_ELMFILT
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -38,33 +35,25 @@ syn region	elmfiltString	contained	start
 syn match	elmfiltSpaceError	contained	"\s.*$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_elmfilt_syntax_inits")
-  if version < 508
-    let did_elmfilt_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink elmfiltAction	Statement
-  HiLink elmfiltArg	Special
-  HiLink elmfiltComment	Comment
-  HiLink elmfiltCond	Statement
-  HiLink elmfiltIf	Statement
-  HiLink elmfiltMatch	Special
-  HiLink elmfiltMatchError	Error
-  HiLink elmfiltNumber	Number
-  HiLink elmfiltOper	Operator
-  HiLink elmfiltOperKey	Type
-  HiLink elmfiltParenError	Error
-  HiLink elmfiltSpaceError	Error
-  HiLink elmfiltString	String
-  HiLink elmfiltThenError	Error
+HiLink elmfiltAction	Statement
+HiLink elmfiltArg	Special
+HiLink elmfiltComment	Comment
+HiLink elmfiltCond	Statement
+HiLink elmfiltIf	Statement
+HiLink elmfiltMatch	Special
+HiLink elmfiltMatchError	Error
+HiLink elmfiltNumber	Number
+HiLink elmfiltOper	Operator
+HiLink elmfiltOperKey	Type
+HiLink elmfiltParenError	Error
+HiLink elmfiltSpaceError	Error
+HiLink elmfiltString	String
+HiLink elmfiltThenError	Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "elmfilt"
 " vim: ts=9
diff --git a/runtime/syntax/erlang.vim b/runtime/syntax/erlang.vim
--- a/runtime/syntax/erlang.vim
+++ b/runtime/syntax/erlang.vim
@@ -28,11 +28,8 @@
 "
 "     syn keyword erlangAttribute myattr1 myattr2 contained
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -42,9 +39,7 @@ set cpo&vim
 " Case sensitive
 syn case match
 
-if version >= 600
-  setlocal iskeyword+=$,@-@
-endif
+setlocal iskeyword+=$,@-@
 
 " Comments
 syn match erlangComment           '%.*$' contains=erlangCommentAnnotation,erlangTodo
@@ -147,115 +142,107 @@ let b:erlang_syntax_synced = 1
 let s:old_style = (exists("g:erlang_old_style_highlight") &&
                   \g:erlang_old_style_highlight == 1)
 
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_erlang_inits")
-  if version < 508
-    let did_erlang_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " Comments
-  HiLink erlangComment Comment
-  HiLink erlangCommentAnnotation Special
-  HiLink erlangTodo Todo
-  HiLink erlangShebang Comment
+" Comments
+HiLink erlangComment Comment
+HiLink erlangCommentAnnotation Special
+HiLink erlangTodo Todo
+HiLink erlangShebang Comment
 
-  " Numbers
-  HiLink erlangNumberInteger Number
-  HiLink erlangNumberFloat Float
+" Numbers
+HiLink erlangNumberInteger Number
+HiLink erlangNumberFloat Float
+
+" Strings, atoms, characters
+HiLink erlangString String
 
-  " Strings, atoms, characters
-  HiLink erlangString String
+if s:old_style
+HiLink erlangQuotedAtom Type
+else
+HiLink erlangQuotedAtom String
+endif
 
-  if s:old_style
-    HiLink erlangQuotedAtom Type
-  else
-    HiLink erlangQuotedAtom String
-  endif
+HiLink erlangStringModifier Special
+HiLink erlangQuotedAtomModifier Special
+HiLink erlangModifier Special
 
-  HiLink erlangStringModifier Special
-  HiLink erlangQuotedAtomModifier Special
-  HiLink erlangModifier Special
-
-  " Operators, separators
-  HiLink erlangOperator Operator
-  HiLink erlangRightArrow Operator
-  if s:old_style
-    HiLink erlangBracket Normal
-    HiLink erlangPipe Normal
-  else
-    HiLink erlangBracket Delimiter
-    HiLink erlangPipe Delimiter
-  endif
+" Operators, separators
+HiLink erlangOperator Operator
+HiLink erlangRightArrow Operator
+if s:old_style
+HiLink erlangBracket Normal
+HiLink erlangPipe Normal
+else
+HiLink erlangBracket Delimiter
+HiLink erlangPipe Delimiter
+endif
 
-  " Atoms, functions, variables, macros
-  if s:old_style
-    HiLink erlangAtom Normal
-    HiLink erlangLocalFuncCall Normal
-    HiLink erlangLocalFuncRef Normal
-    HiLink erlangGlobalFuncCall Function
-    HiLink erlangGlobalFuncRef Function
-    HiLink erlangVariable Normal
-    HiLink erlangMacro Normal
-    HiLink erlangRecord Normal
-  else
-    HiLink erlangAtom String
-    HiLink erlangLocalFuncCall Normal
-    HiLink erlangLocalFuncRef Normal
-    HiLink erlangGlobalFuncCall Normal
-    HiLink erlangGlobalFuncRef Normal
-    HiLink erlangVariable Identifier
-    HiLink erlangMacro Macro
-    HiLink erlangRecord Structure
-  endif
+" Atoms, functions, variables, macros
+if s:old_style
+HiLink erlangAtom Normal
+HiLink erlangLocalFuncCall Normal
+HiLink erlangLocalFuncRef Normal
+HiLink erlangGlobalFuncCall Function
+HiLink erlangGlobalFuncRef Function
+HiLink erlangVariable Normal
+HiLink erlangMacro Normal
+HiLink erlangRecord Normal
+else
+HiLink erlangAtom String
+HiLink erlangLocalFuncCall Normal
+HiLink erlangLocalFuncRef Normal
+HiLink erlangGlobalFuncCall Normal
+HiLink erlangGlobalFuncRef Normal
+HiLink erlangVariable Identifier
+HiLink erlangMacro Macro
+HiLink erlangRecord Structure
+endif
 
-  " Bitstrings
-  if !s:old_style
-    HiLink erlangBitType Type
-  endif
+" Bitstrings
+if !s:old_style
+HiLink erlangBitType Type
+endif
 
-  " Constants and Directives
-  if s:old_style
-    HiLink erlangAttribute Type
-    HiLink erlangMacroDef Type
-    HiLink erlangUnknownAttribute Normal
-    HiLink erlangInclude Type
-    HiLink erlangRecordDef Type
-    HiLink erlangDefine Type
-    HiLink erlangPreCondit Type
-    HiLink erlangType Type
-  else
-    HiLink erlangAttribute Keyword
-    HiLink erlangMacroDef Macro
-    HiLink erlangUnknownAttribute Normal
-    HiLink erlangInclude Include
-    HiLink erlangRecordDef Keyword
-    HiLink erlangDefine Define
-    HiLink erlangPreCondit PreCondit
-    HiLink erlangType Type
-  endif
+" Constants and Directives
+if s:old_style
+HiLink erlangAttribute Type
+HiLink erlangMacroDef Type
+HiLink erlangUnknownAttribute Normal
+HiLink erlangInclude Type
+HiLink erlangRecordDef Type
+HiLink erlangDefine Type
+HiLink erlangPreCondit Type
+HiLink erlangType Type
+else
+HiLink erlangAttribute Keyword
+HiLink erlangMacroDef Macro
+HiLink erlangUnknownAttribute Normal
+HiLink erlangInclude Include
+HiLink erlangRecordDef Keyword
+HiLink erlangDefine Define
+HiLink erlangPreCondit PreCondit
+HiLink erlangType Type
+endif
 
-  " Keywords
-  HiLink erlangKeyword Keyword
+" Keywords
+HiLink erlangKeyword Keyword
 
-  " Build-in-functions (BIFs)
-  HiLink erlangBIF Function
+" Build-in-functions (BIFs)
+HiLink erlangBIF Function
 
-  if s:old_style
-    HiLink erlangBoolean Statement
-    HiLink erlangExtra Statement
-    HiLink erlangSignal Statement
-  else
-    HiLink erlangBoolean Boolean
-    HiLink erlangExtra Statement
-    HiLink erlangSignal Statement
-  endif
+if s:old_style
+HiLink erlangBoolean Statement
+HiLink erlangExtra Statement
+HiLink erlangSignal Statement
+else
+HiLink erlangBoolean Boolean
+HiLink erlangExtra Statement
+HiLink erlangSignal Statement
+endif
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "erlang"
 
diff --git a/runtime/syntax/eruby.vim b/runtime/syntax/eruby.vim
--- a/runtime/syntax/eruby.vim
+++ b/runtime/syntax/eruby.vim
@@ -22,7 +22,7 @@ elseif !exists("b:eruby_subtype") && mai
   let s:lines = getline(1)."\n".getline(2)."\n".getline(3)."\n".getline(4)."\n".getline(5)."\n".getline("$")
   let b:eruby_subtype = matchstr(s:lines,'eruby_subtype=\zs\w\+')
   if b:eruby_subtype == ''
-    let b:eruby_subtype = matchstr(substitute(expand("%:t"),'\c\%(\.erb\|\.eruby\|\.erubis\)\+$','',''),'\.\zs\w\+$')
+    let b:eruby_subtype = matchstr(substitute(expand("%:t"),'\c\%(\.erb\|\.eruby\|\.erubis\)\+$','',''),'\.\zs\w\+\%(\ze+\w\+\)\=$')
   endif
   if b:eruby_subtype == 'rhtml'
     let b:eruby_subtype = 'html'
diff --git a/runtime/syntax/esmtprc.vim b/runtime/syntax/esmtprc.vim
--- a/runtime/syntax/esmtprc.vim
+++ b/runtime/syntax/esmtprc.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Kornel Kielczewski <kornel@gazeta.pl>
 " Last Change:	16 Feb 2005
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/esqlc.vim b/runtime/syntax/esqlc.vim
--- a/runtime/syntax/esqlc.vim
+++ b/runtime/syntax/esqlc.vim
@@ -3,20 +3,13 @@
 " Maintainer:	Jonathan A. George <jageorge@tel.gte.com>
 " Last Change:	2001 May 09
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " Read the C++ syntax to start with
-if version < 600
-  source <sfile>:p:h/cpp.vim
-else
-  runtime! syntax/cpp.vim
-endif
+runtime! syntax/cpp.vim
 
 " ESQL-C extentions
 
@@ -52,24 +45,16 @@ syntax keyword esqlcStatement	rename rev
 syntax keyword esqlcStatement	truncate update
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_esqlc_syntax_inits")
-  if version < 508
-    let did_esqlc_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink esqlcOperator	Operator
-  HiLink esqlcStatement	Statement
-  HiLink esqlcKeyword	esqlcSpecial
-  HiLink esqlcSpecial	Special
-  HiLink esqlcPreProc	PreProc
+HiLink esqlcOperator	Operator
+HiLink esqlcStatement	Statement
+HiLink esqlcKeyword	esqlcSpecial
+HiLink esqlcSpecial	Special
+HiLink esqlcPreProc	PreProc
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "esqlc"
 
diff --git a/runtime/syntax/esterel.vim b/runtime/syntax/esterel.vim
--- a/runtime/syntax/esterel.vim
+++ b/runtime/syntax/esterel.vim
@@ -6,11 +6,8 @@
 " Last Change:		Tue May  6 13:29:56 CEST 2008
 " Version:			0.8
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -65,26 +62,19 @@ syn match esterelNone			"\<else\s\+if\>$
 syn match esterelNone			"\<else\s\+if\>\s"
 
 " Class Linking
-if version >= 508 || !exists("did_esterel_syntax_inits")
-  if version < 508
-    let did_esterel_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink esterelStatement		Statement
-	HiLink esterelType			Type
-	HiLink esterelComment		Comment
-	HiLink esterelBoolean		Number
-	HiLink esterelExpressions	Number
-	HiLink esterelIO			String
-	HiLink esterelOperator		Type
-	HiLink esterelSysCall		Type
-	HiLink esterelFunctions		Type
-	HiLink esterelSpecial		Special
+HiLink esterelStatement		Statement
+HiLink esterelType			Type
+HiLink esterelComment		Comment
+HiLink esterelBoolean		Number
+HiLink esterelExpressions	Number
+HiLink esterelIO			String
+HiLink esterelOperator		Type
+HiLink esterelSysCall		Type
+HiLink esterelFunctions		Type
+HiLink esterelSpecial		Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "esterel"
diff --git a/runtime/syntax/euphoria3.vim b/runtime/syntax/euphoria3.vim
--- a/runtime/syntax/euphoria3.vim
+++ b/runtime/syntax/euphoria3.vim
@@ -5,10 +5,8 @@
 " Remark:       Euphoria has two syntax files, euphoria3.vim and euphoria4.vim; 
 "               For details see :help ft-euphoria-syntax
 
-" Quit if a (custom) syntax file was already loaded (compatible with Vim 5.8): 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/euphoria4.vim b/runtime/syntax/euphoria4.vim
--- a/runtime/syntax/euphoria4.vim
+++ b/runtime/syntax/euphoria4.vim
@@ -5,10 +5,8 @@
 " Remark:       Euphoria has two syntax files, euphoria3.vim and euphoria4.vim; 
 "               For details see :help ft-euphoria-syntax
 
-" Quit if a (custom) syntax file was already loaded (compatible with Vim 5.8): 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/eviews.vim b/runtime/syntax/eviews.vim
--- a/runtime/syntax/eviews.vim
+++ b/runtime/syntax/eviews.vim
@@ -4,19 +4,12 @@
 " Last Change:  2006 Apr 30
 " Filenames:	*.prg
 " URL:	http://uosis.mif.vu.lt/~zemlys/vim-syntax/eviews.vim
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
-if version >= 600
-  setlocal iskeyword=@,48-57,_,.
-else
-  set iskeyword=@,48-57,_,.
-endif
+setlocal iskeyword=@,48-57,_,.
 
 syn case match
 
@@ -69,35 +62,27 @@ syn match eCurlyError /[)\]]/ contained
 syn match eParenError /[\]}]/ contained
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_r_syn_inits")
-  if version < 508
-    let did_r_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink eComment     Comment
-  HiLink eConstant    Identifier
-  HiLink eStringId    Identifier
-  HiLink eCommand     Type
-  HiLink eString      String
-  HiLink eNumber      Number
-  HiLink eBoolean     Boolean
-  HiLink eFloat       Float
-  HiLink eConditional Conditional
-  HiLink eProgLang    Statement
-  HiLink eOVP	      Statement
-  HiLink eStdCmd      Statement
-  HiLink eIdentifier  Normal
-  HiLink eDelimiter   Delimiter
-  HiLink eError       Error
-  HiLink eBraceError  Error
-  HiLink eCurlyError  Error
-  HiLink eParenError  Error
-  delcommand HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink eComment     Comment
+HiLink eConstant    Identifier
+HiLink eStringId    Identifier
+HiLink eCommand     Type
+HiLink eString      String
+HiLink eNumber      Number
+HiLink eBoolean     Boolean
+HiLink eFloat       Float
+HiLink eConditional Conditional
+HiLink eProgLang    Statement
+HiLink eOVP	      Statement
+HiLink eStdCmd      Statement
+HiLink eIdentifier  Normal
+HiLink eDelimiter   Delimiter
+HiLink eError       Error
+HiLink eBraceError  Error
+HiLink eCurlyError  Error
+HiLink eParenError  Error
+delcommand HiLink
 
 let b:current_syntax="eviews"
 
diff --git a/runtime/syntax/exim.vim b/runtime/syntax/exim.vim
--- a/runtime/syntax/exim.vim
+++ b/runtime/syntax/exim.vim
@@ -6,12 +6,9 @@
 " URL: http://trific.ath.cx/Ftp/vim/syntax/exim.vim
 
 " Setup
-if version >= 600
-	if exists("b:current_syntax")
-		finish
-	endif
-else
-	syntax clear
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+	finish
 endif
 
 syn case match
@@ -91,27 +88,20 @@ syn keyword eximKeyword server_prompts s
 syn keyword eximKeyword server_secret client_name client_secret
 
 " Define the default highlighting
-if version >= 508 || !exists("did_exim_syntax_inits")
-	if version < 508
-		let did_exim_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink eximComment Comment
-	HiLink eximFixme Todo
-	HiLink eximEnd Keyword
-	HiLink eximNumber Number
-	HiLink eximDriverName Constant
-	HiLink eximConstant Constant
-	HiLink eximTime Constant
-	HiLink eximKeyword Type
-	HiLink eximSpecialChar Special
-	HiLink eximMacroName Preproc
-	HiLink eximTransport Identifier
+HiLink eximComment Comment
+HiLink eximFixme Todo
+HiLink eximEnd Keyword
+HiLink eximNumber Number
+HiLink eximDriverName Constant
+HiLink eximConstant Constant
+HiLink eximTime Constant
+HiLink eximKeyword Type
+HiLink eximSpecialChar Special
+HiLink eximMacroName Preproc
+HiLink eximTransport Identifier
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "exim"
diff --git a/runtime/syntax/expect.vim b/runtime/syntax/expect.vim
--- a/runtime/syntax/expect.vim
+++ b/runtime/syntax/expect.vim
@@ -4,11 +4,8 @@
 " Last Change:	2012 Jun 01
 " 		(Dominique Pelle added @Spell)
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -81,35 +78,27 @@ syn match   expectComment	"#.*$" contain
 syn match   expectSharpBang	"\%^#!.*"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_expect_syntax_inits")
-  if version < 508
-    let did_expect_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink expectSharpBang	PreProc
-  HiLink expectVariables	Special
-  HiLink expectCommand		Function
-  HiLink expectStatement	Statement
-  HiLink expectConditional	Conditional
-  HiLink expectRepeat		Repeat
-  HiLink expectExpectOpts	Keyword
-  HiLink expectOutVar		Special
-  HiLink expectSpecial		Special
-  HiLink expectNumber		Number
+HiLink expectSharpBang	PreProc
+HiLink expectVariables	Special
+HiLink expectCommand		Function
+HiLink expectStatement	Statement
+HiLink expectConditional	Conditional
+HiLink expectRepeat		Repeat
+HiLink expectExpectOpts	Keyword
+HiLink expectOutVar		Special
+HiLink expectSpecial		Special
+HiLink expectNumber		Number
 
-  HiLink expectString		String
+HiLink expectString		String
 
-  HiLink expectComment		Comment
-  HiLink expectTodo		Todo
-  "HiLink expectIdentifier	Identifier
+HiLink expectComment		Comment
+HiLink expectTodo		Todo
+"HiLink expectIdentifier	Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "expect"
 
diff --git a/runtime/syntax/exports.vim b/runtime/syntax/exports.vim
--- a/runtime/syntax/exports.vim
+++ b/runtime/syntax/exports.vim
@@ -6,11 +6,8 @@
 " Notes:		This file includes both SysV and BSD 'isms
 " URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_EXPORTS
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -39,32 +36,24 @@ syn match exportsSeparator	"[,:]"
 syn match exportsComment	"^\s*#.*$"	contains=@Spell
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_exports_syntax_inits")
-  if version < 508
-    let did_exports_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink exportsKeyOptSet	exportsKeySettings
-  HiLink exportsOptSet	exportsSettings
+HiLink exportsKeyOptSet	exportsKeySettings
+HiLink exportsOptSet	exportsSettings
 
-  HiLink exportsComment	Comment
-  HiLink exportsKeyOptions	Type
-  HiLink exportsKeySettings	Keyword
-  HiLink exportsOptions	Constant
-  HiLink exportsSeparator	Constant
-  HiLink exportsSettings	Constant
+HiLink exportsComment	Comment
+HiLink exportsKeyOptions	Type
+HiLink exportsKeySettings	Keyword
+HiLink exportsOptions	Constant
+HiLink exportsSeparator	Constant
+HiLink exportsSettings	Constant
 
-  HiLink exportsOptError	Error
-  HiLink exportsOptSetError	Error
-  HiLink exportsSetError	Error
+HiLink exportsOptError	Error
+HiLink exportsOptSetError	Error
+HiLink exportsSetError	Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "exports"
 " vim: ts=10
diff --git a/runtime/syntax/fasm.vim b/runtime/syntax/fasm.vim
--- a/runtime/syntax/fasm.vim
+++ b/runtime/syntax/fasm.vim
@@ -6,9 +6,8 @@
 " FASM Home:	http://flatassembler.net/
 " FASM Version: 1.56
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/fdcc.vim b/runtime/syntax/fdcc.vim
--- a/runtime/syntax/fdcc.vim
+++ b/runtime/syntax/fdcc.vim
@@ -4,11 +4,8 @@
 " Last Change:	2004 May 16
 " Remarks:      FDCC (Formal Definitions of Cultural Conventions) see ISO TR 14652
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -58,56 +55,48 @@ syn region fdccBlank matchgroup=fdccLCNa
 syn region fdccBlank matchgroup=fdccLCAddress start=/^LC_ADDRESS$/ end=/^END LC_ADDRESS$/ contains=fdccKeywordAddress,fdccString,fdccComment,fdccNumber
 
 
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_fdcc_syn_inits")
-  if version < 508
-    let did_fdcc_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink fdccBlank		 Blank
+HiLink fdccBlank		 Blank
 
-  HiLink fdccTodo		 Todo
-  HiLink fdccComment		 Comment
-  HiLink fdccVariable		 Type
+HiLink fdccTodo		 Todo
+HiLink fdccComment		 Comment
+HiLink fdccVariable		 Type
 
-  HiLink fdccLCIdentification	 Statement
-  HiLink fdccLCCtype		 Statement
-  HiLink fdccLCCollate		 Statement
-  HiLink fdccLCMonetary		 Statement
-  HiLink fdccLCNumeric		 Statement
-  HiLink fdccLCTime		 Statement
-  HiLink fdccLCMessages		 Statement
-  HiLink fdccLCPaper		 Statement
-  HiLink fdccLCTelephone	 Statement
-  HiLink fdccLCMeasurement	 Statement
-  HiLink fdccLCName		 Statement
-  HiLink fdccLCAddress		 Statement
+HiLink fdccLCIdentification	 Statement
+HiLink fdccLCCtype		 Statement
+HiLink fdccLCCollate		 Statement
+HiLink fdccLCMonetary		 Statement
+HiLink fdccLCNumeric		 Statement
+HiLink fdccLCTime		 Statement
+HiLink fdccLCMessages		 Statement
+HiLink fdccLCPaper		 Statement
+HiLink fdccLCTelephone	 Statement
+HiLink fdccLCMeasurement	 Statement
+HiLink fdccLCName		 Statement
+HiLink fdccLCAddress		 Statement
 
-  HiLink fdccUnicodeInValid	 Error
-  HiLink fdccUnicodeValid	 String
-  HiLink fdccString		 String
-  HiLink fdccNumber		 Blank
+HiLink fdccUnicodeInValid	 Error
+HiLink fdccUnicodeValid	 String
+HiLink fdccString		 String
+HiLink fdccNumber		 Blank
 
-  HiLink fdccKeywordIdentification fdccKeyword
-  HiLink fdccKeywordCtype	   fdccKeyword
-  HiLink fdccKeywordCollate	   fdccKeyword
-  HiLink fdccKeywordMonetary	   fdccKeyword
-  HiLink fdccKeywordNumeric	   fdccKeyword
-  HiLink fdccKeywordTime	   fdccKeyword
-  HiLink fdccKeywordMessages	   fdccKeyword
-  HiLink fdccKeywordPaper	   fdccKeyword
-  HiLink fdccKeywordTelephone	   fdccKeyword
-  HiLink fdccKeywordMeasurement    fdccKeyword
-  HiLink fdccKeywordName	   fdccKeyword
-  HiLink fdccKeywordAddress	   fdccKeyword
-  HiLink fdccKeyword		   Identifier
+HiLink fdccKeywordIdentification fdccKeyword
+HiLink fdccKeywordCtype	   fdccKeyword
+HiLink fdccKeywordCollate	   fdccKeyword
+HiLink fdccKeywordMonetary	   fdccKeyword
+HiLink fdccKeywordNumeric	   fdccKeyword
+HiLink fdccKeywordTime	   fdccKeyword
+HiLink fdccKeywordMessages	   fdccKeyword
+HiLink fdccKeywordPaper	   fdccKeyword
+HiLink fdccKeywordTelephone	   fdccKeyword
+HiLink fdccKeywordMeasurement    fdccKeyword
+HiLink fdccKeywordName	   fdccKeyword
+HiLink fdccKeywordAddress	   fdccKeyword
+HiLink fdccKeyword		   Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "fdcc"
 
diff --git a/runtime/syntax/fgl.vim b/runtime/syntax/fgl.vim
--- a/runtime/syntax/fgl.vim
+++ b/runtime/syntax/fgl.vim
@@ -7,11 +7,8 @@
 " - Conditionally allow case insensitive keywords (Julian Bridle)
 "
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -119,28 +116,20 @@ syn match fglSpecial	"--@"
 syn sync ccomment fglComment
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_fgl_syntax_inits")
-  if version < 508
-    let did_fgl_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink fglComment	Comment
-  "HiLink fglKeyword	fglSpecial
-  HiLink fglKeyword	fglStatement
-  HiLink fglNumber	Number
-  HiLink fglOperator	fglStatement
-  HiLink fglSpecial	Special
-  HiLink fglStatement	Statement
-  HiLink fglString	String
-  HiLink fglType	Type
+HiLink fglComment	Comment
+"HiLink fglKeyword	fglSpecial
+HiLink fglKeyword	fglStatement
+HiLink fglNumber	Number
+HiLink fglOperator	fglStatement
+HiLink fglSpecial	Special
+HiLink fglStatement	Statement
+HiLink fglString	String
+HiLink fglType	Type
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "fgl"
 
diff --git a/runtime/syntax/flexwiki.vim b/runtime/syntax/flexwiki.vim
--- a/runtime/syntax/flexwiki.vim
+++ b/runtime/syntax/flexwiki.vim
@@ -14,10 +14,8 @@
 " regexes, which use a different syntax than Vim (fewer \s).
 " The primary test case is FlexWiki\FormattingRules.wiki
 
-" Quit if syntax file is already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
diff --git a/runtime/syntax/focexec.vim b/runtime/syntax/focexec.vim
--- a/runtime/syntax/focexec.vim
+++ b/runtime/syntax/focexec.vim
@@ -11,11 +11,8 @@
 " I think some of these things should get different hilights -
 "  should MODIFY commands look different than TABLE?
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -69,32 +66,24 @@ syn match   focexecNumber	"\<\d\+\.\d*\>
 syn match   focexecComment	"-\*.*"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_focexec_syntax_inits")
-  if version < 508
-    let did_focexec_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink focexecString1		String
-  HiLink focexecString2		String
-  HiLink focexecNumber		Number
-  HiLink focexecComment		Comment
-  HiLink focexecTable		Keyword
-  HiLink focexecModify		Keyword
-  HiLink focexecNormal		Keyword
-  HiLink focexecSet		Keyword
-  HiLink focexecDash		Keyword
-  HiLink focexecFileDef		Keyword
-  HiLink focexecJoin		Keyword
-  HiLink focexecAmperVar	Identifier
-  HiLink focexecFuse		Function
+HiLink focexecString1		String
+HiLink focexecString2		String
+HiLink focexecNumber		Number
+HiLink focexecComment		Comment
+HiLink focexecTable		Keyword
+HiLink focexecModify		Keyword
+HiLink focexecNormal		Keyword
+HiLink focexecSet		Keyword
+HiLink focexecDash		Keyword
+HiLink focexecFileDef		Keyword
+HiLink focexecJoin		Keyword
+HiLink focexecAmperVar	Identifier
+HiLink focexecFuse		Function
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "focexec"
 
diff --git a/runtime/syntax/form.vim b/runtime/syntax/form.vim
--- a/runtime/syntax/form.vim
+++ b/runtime/syntax/form.vim
@@ -11,11 +11,8 @@
 " This syntax file is still in development. Please send suggestions
 " to the maintainer.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -109,49 +106,41 @@ syn match   formDirective	"^\=\.[a-zA-z]
 syn sync ccomment formComment minlines=10
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_form_syn_inits")
-  if version < 508
-    let did_form_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink formConditional	Conditional
+HiLink formNumber		Number
+HiLink formStatement		Statement
+HiLink formComment		Comment
+HiLink formPreProc		PreProc
+HiLink formDirective		PreProc
+HiLink formType		Type
+HiLink formString		String
+HiLink formNestedString	String
+HiLink formReserved           Error
+HiLink formTodo               Todo
+HiLink formSpecial            SpecialChar
 
-  HiLink formConditional	Conditional
-  HiLink formNumber		Number
-  HiLink formStatement		Statement
-  HiLink formComment		Comment
-  HiLink formPreProc		PreProc
-  HiLink formDirective		PreProc
-  HiLink formType		Type
-  HiLink formString		String
-  HiLink formNestedString	String
-  HiLink formReserved           Error
-  HiLink formTodo               Todo
-  HiLink formSpecial            SpecialChar
+if !exists("form_enhanced_color")
+HiLink formHeaderStatement	Statement
+else
+" enhanced color mode
+HiLink formHeaderStatement	HeaderStatement
+" dark and a light background for local types
+if &background == "dark"
+hi HeaderStatement term=underline ctermfg=LightGreen guifg=LightGreen gui=bold
+else
+hi HeaderStatement term=underline ctermfg=DarkGreen guifg=SeaGreen gui=bold
+endif
+" change slightly the default for dark gvim
+if has("gui_running") && &background == "dark"
+hi Conditional guifg=LightBlue gui=bold
+hi Statement guifg=LightYellow
+endif
+endif
 
-  if !exists("form_enhanced_color")
-    HiLink formHeaderStatement	Statement
-  else
-  " enhanced color mode
-    HiLink formHeaderStatement	HeaderStatement
-    " dark and a light background for local types
-    if &background == "dark"
-      hi HeaderStatement term=underline ctermfg=LightGreen guifg=LightGreen gui=bold
-    else
-      hi HeaderStatement term=underline ctermfg=DarkGreen guifg=SeaGreen gui=bold
-    endif
-    " change slightly the default for dark gvim
-    if has("gui_running") && &background == "dark"
-      hi Conditional guifg=LightBlue gui=bold
-      hi Statement guifg=LightYellow
-    endif
-  endif
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
   let b:current_syntax = "form"
 
diff --git a/runtime/syntax/forth.vim b/runtime/syntax/forth.vim
--- a/runtime/syntax/forth.vim
+++ b/runtime/syntax/forth.vim
@@ -80,11 +80,8 @@
 "
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -104,11 +101,7 @@ syn match forthTodo contained 'Copyright
 
 " Characters allowed in keywords
 " I don't know if 128-255 are allowed in ANS-FORTH
-if version >= 600
-    setlocal iskeyword=!,@,33-35,%,$,38-64,A-Z,91-96,a-z,123-126,128-255
-else
-    set iskeyword=!,@,33-35,%,$,38-64,A-Z,91-96,a-z,123-126,128-255
-endif
+setlocal iskeyword=!,@,33-35,%,$,38-64,A-Z,91-96,a-z,123-126,128-255
 
 " when wanted, highlight trailing white space
 if exists("forth_space_errors")
@@ -289,56 +282,48 @@ syn match forthLocals '{ }' " otherwise,
 syn region forthDeprecated start='locals|' end='|'
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_forth_syn_inits")
-    if version < 508
-	let did_forth_syn_inits = 1
-	command -nargs=+ HiLink hi link <args>
-    else
-	command -nargs=+ HiLink hi def link <args>
-    endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-    " The default methods for highlighting. Can be overridden later.
-    HiLink forthTodo Todo
-    HiLink forthOperators Operator
-    HiLink forthMath Number
-    HiLink forthInteger Number
-    HiLink forthFloat Float
-    HiLink forthStack Special
-    HiLink forthRstack Special
-    HiLink forthFStack Special
-    HiLink forthSP Special
-    HiLink forthMemory Function
-    HiLink forthAdrArith Function
-    HiLink forthMemBlks Function
-    HiLink forthCond Conditional
-    HiLink forthLoop Repeat
-    HiLink forthColonDef Define
-    HiLink forthEndOfColonDef Define
-    HiLink forthDefine Define
-    HiLink forthDebug Debug
-    HiLink forthAssembler Include
-    HiLink forthCharOps Character
-    HiLink forthConversion String
-    HiLink forthForth Statement
-    HiLink forthVocs Statement
-    HiLink forthString String
-    HiLink forthComment Comment
-    HiLink forthClassDef Define
-    HiLink forthEndOfClassDef Define
-    HiLink forthObjectDef Define
-    HiLink forthEndOfObjectDef Define
-    HiLink forthInclude Include
-    HiLink forthLocals Type " nothing else uses type and locals must stand out
-    HiLink forthDeprecated Error " if you must, change to Type
-    HiLink forthFileMode Function
-    HiLink forthFileWords Statement
-    HiLink forthBlocks Statement
-    HiLink forthSpaceError Error
+" The default methods for highlighting. Can be overridden later.
+HiLink forthTodo Todo
+HiLink forthOperators Operator
+HiLink forthMath Number
+HiLink forthInteger Number
+HiLink forthFloat Float
+HiLink forthStack Special
+HiLink forthRstack Special
+HiLink forthFStack Special
+HiLink forthSP Special
+HiLink forthMemory Function
+HiLink forthAdrArith Function
+HiLink forthMemBlks Function
+HiLink forthCond Conditional
+HiLink forthLoop Repeat
+HiLink forthColonDef Define
+HiLink forthEndOfColonDef Define
+HiLink forthDefine Define
+HiLink forthDebug Debug
+HiLink forthAssembler Include
+HiLink forthCharOps Character
+HiLink forthConversion String
+HiLink forthForth Statement
+HiLink forthVocs Statement
+HiLink forthString String
+HiLink forthComment Comment
+HiLink forthClassDef Define
+HiLink forthEndOfClassDef Define
+HiLink forthObjectDef Define
+HiLink forthEndOfObjectDef Define
+HiLink forthInclude Include
+HiLink forthLocals Type " nothing else uses type and locals must stand out
+HiLink forthDeprecated Error " if you must, change to Type
+HiLink forthFileMode Function
+HiLink forthFileWords Statement
+HiLink forthBlocks Statement
+HiLink forthSpaceError Error
 
-    delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "forth"
 
diff --git a/runtime/syntax/fortran.vim b/runtime/syntax/fortran.vim
--- a/runtime/syntax/fortran.vim
+++ b/runtime/syntax/fortran.vim
@@ -1,7 +1,7 @@
 " Vim syntax file
 " Language:	Fortran 2008 (and older: Fortran 2003, 95, 90, and 77)
 " Version:	0.98
-" Last Change:	2016 Aug. 26
+" Last Change:	2016 Aug. 29
 " Maintainer:	Ajit J. Thakkar <ajit@unb.ca>; <http://www2.unb.ca/~ajit/>
 " Usage:	For instructions, do :help fortran-syntax from Vim
 " Credits:
@@ -11,7 +11,7 @@
 "  Andrej Panjkov, Bram Moolenaar, Thomas Olsen, Michael Sternberg, Christian Reile,
 "  Walter Dieudonné, Alexander Wagner, Roman Bertle, Charles Rendleman,
 "  Andrew Griffiths, Joe Krahn, Hendrik Merx, Matt Thompson, Jan Hermann,
-"  Stefano Zaghi and Vishnu Krishnan.
+"  Stefano Zaghi and Vishnu V. Krishnan.
 
 if exists("b:current_syntax")
   finish
@@ -368,6 +368,7 @@ else
 endif
 
 syn match fortranComment	excludenl "!.*$" contains=@fortranCommentGroup,@spell
+syn match fortranOpenMP		excludenl 		"^\s*!\$\(OMP\)\=\s.*$"
 
 "cpp is often used with Fortran
 syn match	cPreProc		"^\s*#\s*\(define\|ifdef\)\>.*"
@@ -517,6 +518,7 @@ hi def link cIncluded		fortranString
 hi def link cInclude		Include
 hi def link cPreProc		PreProc
 hi def link cPreCondit		PreCondit
+hi def link fortranOpenMP       PreProc
 hi def link fortranParenError	Error
 hi def link fortranComment	Comment
 hi def link fortranSerialNumber	Todo
diff --git a/runtime/syntax/foxpro.vim b/runtime/syntax/foxpro.vim
--- a/runtime/syntax/foxpro.vim
+++ b/runtime/syntax/foxpro.vim
@@ -13,9 +13,8 @@
 " 		corrected highlighting of comments at end of line (&&)
 " 
 " 
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -691,37 +690,29 @@ syn match foxproParenErr ")"
 syn sync minlines=1 maxlines=3
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_foxpro_syn_inits")
-    if version < 508
-	let did_foxpro_syn_inits = 1
-	command -nargs=+ HiLink hi link <args>
-    else
-	command -nargs=+ HiLink hi def link <args>
-    endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-    HiLink foxproSpecial  Special
-    HiLink foxproAtSymbol Special
-    HiLink foxproAtCmd    Statement
-    HiLink foxproPreProc  PreProc
-    HiLink foxproFunc     Identifier
-    HiLink foxproCmd      Statement
-    HiLink foxproEnBlk    Type
-    HiLink foxproSysVar   String
-    HiLink foxproString   String
-    HiLink foxproConst    Constant
-    HiLink foxproNumber   Number
-    HiLink foxproFloat    Float
-    HiLink foxproComment  Comment
-    HiLink foxproParenErr Error
-    HiLink foxproCBConst  PreProc
-    HiLink foxproCBField  Special
-    HiLink foxproCBVar    Identifier
-    HiLink foxproCBWin    Special
-    HiLink foxproCBObject Identifier
+HiLink foxproSpecial  Special
+HiLink foxproAtSymbol Special
+HiLink foxproAtCmd    Statement
+HiLink foxproPreProc  PreProc
+HiLink foxproFunc     Identifier
+HiLink foxproCmd      Statement
+HiLink foxproEnBlk    Type
+HiLink foxproSysVar   String
+HiLink foxproString   String
+HiLink foxproConst    Constant
+HiLink foxproNumber   Number
+HiLink foxproFloat    Float
+HiLink foxproComment  Comment
+HiLink foxproParenErr Error
+HiLink foxproCBConst  PreProc
+HiLink foxproCBField  Special
+HiLink foxproCBVar    Identifier
+HiLink foxproCBWin    Special
+HiLink foxproCBObject Identifier
 
-    delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "foxpro"
diff --git a/runtime/syntax/fstab.vim b/runtime/syntax/fstab.vim
--- a/runtime/syntax/fstab.vim
+++ b/runtime/syntax/fstab.vim
@@ -19,9 +19,8 @@
 "   let fstab_unknown_device_errors = 0
 "     do not highlight unknown devices as errors
 
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -229,65 +228,58 @@ syn match fsFreqPass /\s\+.\{-}$/ contai
 " Whole line comments
 syn match fsCommentLine /^#.*$/ contains=@Spell
 
-if version >= 508 || !exists("did_config_syntax_inits")
-	if version < 508
-		let did_config_syntax_inits = 1
-		command! -nargs=+ HiLink hi link <args>
-	else
-		command! -nargs=+ HiLink hi def link <args>
-	endif
+command! -nargs=+ HiLink hi def link <args>
 
-	HiLink fsOperator Operator
-	HiLink fsComment Comment
-	HiLink fsCommentLine Comment
+HiLink fsOperator Operator
+HiLink fsComment Comment
+HiLink fsCommentLine Comment
 
-	HiLink fsTypeKeyword Type
-	HiLink fsDeviceKeyword Identifier
-	HiLink fsDeviceLabel String
-	HiLink fsDeviceUUID String
-	HiLink fsDeviceSshfs String
-	HiLink fsFreqPassNumber Number
+HiLink fsTypeKeyword Type
+HiLink fsDeviceKeyword Identifier
+HiLink fsDeviceLabel String
+HiLink fsDeviceUUID String
+HiLink fsDeviceSshfs String
+HiLink fsFreqPassNumber Number
 
-	if exists('fstab_unknown_fs_errors') && fstab_unknown_fs_errors == 1
-		HiLink fsTypeUnknown Error
-	endif
+if exists('fstab_unknown_fs_errors') && fstab_unknown_fs_errors == 1
+HiLink fsTypeUnknown Error
+endif
 
-	if !exists('fstab_unknown_device_errors') || fstab_unknown_device_errors == 1
-		HiLink fsDeviceError Error
-	endif
+if !exists('fstab_unknown_device_errors') || fstab_unknown_device_errors == 1
+HiLink fsDeviceError Error
+endif
+
+HiLink fsMountPointError Error
+HiLink fsMountPointKeyword Keyword
+HiLink fsFreqPassError Error
 
-	HiLink fsMountPointError Error
-	HiLink fsMountPointKeyword Keyword
-	HiLink fsFreqPassError Error
+HiLink fsOptionsGeneral Type
+HiLink fsOptionsKeywords Keyword
+HiLink fsOptionsNumber Number
+HiLink fsOptionsNumberOctal Number
+HiLink fsOptionsString String
+HiLink fsOptionsSize Number
+HiLink fsOptionsExt2Check String
+HiLink fsOptionsExt2Errors String
+HiLink fsOptionsExt3Journal String
+HiLink fsOptionsExt3Data String
+HiLink fsOptionsExt4Journal String
+HiLink fsOptionsExt4Data String
+HiLink fsOptionsExt4Barrier Number
+HiLink fsOptionsFatCheck String
+HiLink fsOptionsConv String
+HiLink fsOptionsFatType Number
+HiLink fsOptionsYesNo String
+HiLink fsOptionsHpfsCase String
+HiLink fsOptionsIsoMap String
+HiLink fsOptionsReiserHash String
+HiLink fsOptionsSshYesNoAsk String
+HiLink fsOptionsUfsType String
+HiLink fsOptionsUfsError String
 
-	HiLink fsOptionsGeneral Type
-	HiLink fsOptionsKeywords Keyword
-	HiLink fsOptionsNumber Number
-	HiLink fsOptionsNumberOctal Number
-	HiLink fsOptionsString String
-	HiLink fsOptionsSize Number
-	HiLink fsOptionsExt2Check String
-	HiLink fsOptionsExt2Errors String
-	HiLink fsOptionsExt3Journal String
-	HiLink fsOptionsExt3Data String
-	HiLink fsOptionsExt4Journal String
-	HiLink fsOptionsExt4Data String
-	HiLink fsOptionsExt4Barrier Number
-	HiLink fsOptionsFatCheck String
-	HiLink fsOptionsConv String
-	HiLink fsOptionsFatType Number
-	HiLink fsOptionsYesNo String
-	HiLink fsOptionsHpfsCase String
-	HiLink fsOptionsIsoMap String
-	HiLink fsOptionsReiserHash String
-	HiLink fsOptionsSshYesNoAsk String
-	HiLink fsOptionsUfsType String
-	HiLink fsOptionsUfsError String
+HiLink fsOptionsVfatShortname String
 
-	HiLink fsOptionsVfatShortname String
-
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "fstab"
 
diff --git a/runtime/syntax/fvwm2m4.vim b/runtime/syntax/fvwm2m4.vim
--- a/runtime/syntax/fvwm2m4.vim
+++ b/runtime/syntax/fvwm2m4.vim
@@ -5,12 +5,9 @@
 " URI: http://physics.muni.cz/~yeti/download/syntax/fvwmm4.vim
 
 " Setup
-if version >= 600
-  if exists('b:current_syntax')
-    finish
-  endif
-else
-  syntax clear
+" quit when a syntax file was already loaded
+if exists('b:current_syntax')
+  finish
 endif
 
 " Let included files know they are included
@@ -19,19 +16,11 @@ if !exists('main_syntax')
 endif
 
 " Include M4 syntax
-if version >= 600
-  runtime! syntax/m4.vim
-else
-  so <sfile>:p:h/m4.vim
-endif
+runtime! syntax/m4.vim
 unlet b:current_syntax
 
 " Include Fvwm2 syntax (Fvwm1 doesn't have M4 preprocessor)
-if version >= 600
-  runtime! syntax/fvwm.vim
-else
-  so <sfile>:p:h/fvwm.vim
-endif
+runtime! syntax/fvwm.vim
 unlet b:current_syntax
 
 " That's all!
diff --git a/runtime/syntax/gdb.vim b/runtime/syntax/gdb.vim
--- a/runtime/syntax/gdb.vim
+++ b/runtime/syntax/gdb.vim
@@ -4,11 +4,8 @@
 " URL:		http://www.fleiner.com/vim/syntax/gdb.vim
 " Last Change:	2012 Oct 05
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -87,27 +84,19 @@ endif
 exec "syn sync ccomment gdbComment minlines=" . gdb_minlines
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_gdb_syn_inits")
-  if version < 508
-    let did_gdb_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink gdbFuncDef	Function
-  HiLink gdbComment	Comment
-  HiLink gdbStatement	Statement
-  HiLink gdbString	String
-  HiLink gdbCharacter	Character
-  HiLink gdbVariable	Identifier
-  HiLink gdbSet		Constant
-  HiLink gdbInfo	Type
-  HiLink gdbDocument	Special
-  HiLink gdbNumber	Number
-  delcommand HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink gdbFuncDef	Function
+HiLink gdbComment	Comment
+HiLink gdbStatement	Statement
+HiLink gdbString	String
+HiLink gdbCharacter	Character
+HiLink gdbVariable	Identifier
+HiLink gdbSet		Constant
+HiLink gdbInfo	Type
+HiLink gdbDocument	Special
+HiLink gdbNumber	Number
+delcommand HiLink
 
 let b:current_syntax = "gdb"
 
diff --git a/runtime/syntax/gdmo.vim b/runtime/syntax/gdmo.vim
--- a/runtime/syntax/gdmo.vim
+++ b/runtime/syntax/gdmo.vim
@@ -5,11 +5,8 @@
 " URL:		http://classicalprogrammer.wikidot.com/local--files/vim-syntax-file-for-gdmo/gdmo.vim
 " Last change:	8th June, 2011
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -64,32 +61,24 @@ syn match gdmoBraces     "[{}]"
 syn sync ccomment gdmoComment
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_gdmo_syntax_inits")
-  if version < 508
-    let did_gdmo_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink gdmoCategory	      Structure
-  HiLink gdmoRelationship     Macro
-  HiLink gdmoDefinition       Statement
-  HiLink gdmoReference	      Type
-  HiLink gdmoExtension	      Operator
-  HiLink gdmoBraces	      Function
-  HiLink gdmoSpecial	      Special
-  HiLink gdmoString	      String
-  HiLink gdmoCharacter	      Character
-  HiLink gdmoSpecialCharacter gdmoSpecial
-  HiLink gdmoComment	      Comment
-  HiLink gdmoLineComment      gdmoComment
-  HiLink gdmoType	      Type
+HiLink gdmoCategory	      Structure
+HiLink gdmoRelationship     Macro
+HiLink gdmoDefinition       Statement
+HiLink gdmoReference	      Type
+HiLink gdmoExtension	      Operator
+HiLink gdmoBraces	      Function
+HiLink gdmoSpecial	      Special
+HiLink gdmoString	      String
+HiLink gdmoCharacter	      Character
+HiLink gdmoSpecialCharacter gdmoSpecial
+HiLink gdmoComment	      Comment
+HiLink gdmoLineComment      gdmoComment
+HiLink gdmoType	      Type
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "gdmo"
 
diff --git a/runtime/syntax/gedcom.vim b/runtime/syntax/gedcom.vim
--- a/runtime/syntax/gedcom.vim
+++ b/runtime/syntax/gedcom.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Paul Johnson (pjcj@transeda.com)
 " Version 1.059 - 23rd December 1999
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -41,26 +38,18 @@ syntax match gedcom_date "\d\{1,2}\s\+\(
 syntax match gedcom_date ".*" contained
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_gedcom_syntax_inits")
-  if version < 508
-    let did_gedcom_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink gedcom_record Statement
-  HiLink gedcom_id Comment
-  HiLink gedcom_ii PreProc
-  HiLink gedcom_in Type
-  HiLink gedcom_name PreProc
-  HiLink gedcom_cname Type
-  HiLink gedcom_surname Identifier
-  HiLink gedcom_date Constant
+HiLink gedcom_record Statement
+HiLink gedcom_id Comment
+HiLink gedcom_ii PreProc
+HiLink gedcom_in Type
+HiLink gedcom_name PreProc
+HiLink gedcom_cname Type
+HiLink gedcom_surname Identifier
+HiLink gedcom_date Constant
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "gedcom"
diff --git a/runtime/syntax/gitcommit.vim b/runtime/syntax/gitcommit.vim
--- a/runtime/syntax/gitcommit.vim
+++ b/runtime/syntax/gitcommit.vim
@@ -2,7 +2,7 @@
 " Language:	git commit file
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
 " Filenames:	*.git/COMMIT_EDITMSG
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists("b:current_syntax")
   finish
@@ -39,9 +39,10 @@ syn region  gitcommitDiscarded	start=/^#
 syn region  gitcommitSelected	start=/^# Changes to be committed:/ end=/^#$\|^#\@!/ contains=gitcommitHeader,gitcommitHead,gitcommitSelectedType fold
 syn region  gitcommitUnmerged	start=/^# Unmerged paths:/ end=/^#$\|^#\@!/ contains=gitcommitHeader,gitcommitHead,gitcommitUnmergedType fold
 
-syn match   gitcommitDiscardedType	"\t\@<=[a-z][a-z ]*[a-z]: "he=e-2	contained containedin=gitcommitComment nextgroup=gitcommitDiscardedFile skipwhite
-syn match   gitcommitSelectedType	"\t\@<=[a-z][a-z ]*[a-z]: "he=e-2	contained containedin=gitcommitComment nextgroup=gitcommitSelectedFile skipwhite
-syn match   gitcommitUnmergedType	"\t\@<=[a-z][a-z ]*[a-z]: "he=e-2	contained containedin=gitcommitComment nextgroup=gitcommitUnmergedFile skipwhite
+
+syn match   gitcommitDiscardedType	"\t\@<=[[:lower:]][^:]*[[:lower:]]: "he=e-2	contained containedin=gitcommitComment nextgroup=gitcommitDiscardedFile skipwhite
+syn match   gitcommitSelectedType	"\t\@<=[[:lower:]][^:]*[[:lower:]]: "he=e-2	contained containedin=gitcommitComment nextgroup=gitcommitSelectedFile skipwhite
+syn match   gitcommitUnmergedType	"\t\@<=[[:lower:]][^:]*[[:lower:]]: "he=e-2	contained containedin=gitcommitComment nextgroup=gitcommitUnmergedFile skipwhite
 syn match   gitcommitDiscardedFile	".\{-\}\%($\| -> \)\@=" contained nextgroup=gitcommitDiscardedArrow
 syn match   gitcommitSelectedFile	".\{-\}\%($\| -> \)\@=" contained nextgroup=gitcommitSelectedArrow
 syn match   gitcommitUnmergedFile	".\{-\}\%($\| -> \)\@=" contained nextgroup=gitcommitSelectedArrow
diff --git a/runtime/syntax/gitrebase.vim b/runtime/syntax/gitrebase.vim
--- a/runtime/syntax/gitrebase.vim
+++ b/runtime/syntax/gitrebase.vim
@@ -2,7 +2,7 @@
 " Language:	git rebase --interactive
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
 " Filenames:	git-rebase-todo
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists("b:current_syntax")
   finish
@@ -18,6 +18,7 @@ syn match   gitrebaseEdit   "\v^e%(dit)=
 syn match   gitrebaseSquash "\v^s%(quash)=>" nextgroup=gitrebaseCommit skipwhite
 syn match   gitrebaseFixup  "\v^f%(ixup)=>"  nextgroup=gitrebaseCommit skipwhite
 syn match   gitrebaseExec   "\v^%(x|exec)>" nextgroup=gitrebaseCommand skipwhite
+syn match   gitrebaseDrop   "\v^d%(rop)=>"   nextgroup=gitrebaseCommit skipwhite
 syn match   gitrebaseSummary ".*"               contains=gitrebaseHash contained
 syn match   gitrebaseCommand ".*"                                      contained
 syn match   gitrebaseComment "^#.*"             contains=gitrebaseHash
@@ -31,6 +32,7 @@ hi def link gitrebaseEdit           PreP
 hi def link gitrebaseSquash         Type
 hi def link gitrebaseFixup          Special
 hi def link gitrebaseExec           Function
+hi def link gitrebaseDrop           Comment
 hi def link gitrebaseSummary        String
 hi def link gitrebaseComment        Comment
 hi def link gitrebaseSquashError    Error
diff --git a/runtime/syntax/gitsendemail.vim b/runtime/syntax/gitsendemail.vim
--- a/runtime/syntax/gitsendemail.vim
+++ b/runtime/syntax/gitsendemail.vim
@@ -1,14 +1,18 @@
 " Vim syntax file
 " Language:	git send-email message
 " Maintainer:	Tim Pope
-" Filenames:	*.msg.[0-9]* (first line is "From ... # This line is ignored.")
-" Last Change:	2010 May 21
+" Filenames:	.gitsendemail.*
+" Last Change:	2016 Aug 29
 
 if exists("b:current_syntax")
   finish
 endif
 
 runtime! syntax/mail.vim
+unlet! b:current_syntax
+syn include @gitsendemailDiff syntax/diff.vim
+syn region gitsendemailDiff start=/\%(^diff --\%(git\|cc\|combined\) \)\@=/ end=/^-- %/ fold contains=@gitsendemailDiff
+
 syn case match
 
 syn match   gitsendemailComment "\%^From.*#.*"
diff --git a/runtime/syntax/gkrellmrc.vim b/runtime/syntax/gkrellmrc.vim
--- a/runtime/syntax/gkrellmrc.vim
+++ b/runtime/syntax/gkrellmrc.vim
@@ -6,19 +6,12 @@
 " URL: http://trific.ath.cx/Ftp/vim/syntax/gkrellmrc.vim
 
 " Setup
-if version >= 600
-	if exists("b:current_syntax")
-		finish
-	endif
-else
-	syntax clear
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+	finish
 endif
 
-if version >= 600
-	setlocal iskeyword=_,-,a-z,A-Z,48-57
-else
-	set iskeyword=_,-,a-z,A-Z,48-57
-endif
+setlocal iskeyword=_,-,a-z,A-Z,48-57
 
 syn case match
 
@@ -55,37 +48,30 @@ syn keyword gkrellmrcStyleCmd StyleMeter
 syn keyword gkrellmrcStyleItem textcolor alt_textcolor font alt_font transparency border label_position margin margins left_margin right_margin top_margin bottom_margin krell_depth krell_yoff krell_x_hot krell_expand krell_left_margin krell_right_margin
 
 " Define the default highlighting
-if version >= 508 || !exists("did_gtkrc_syntax_inits")
-	if version < 508
-		let did_gtkrc_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+command -nargs=+ HiLink hi def link <args>
+
+HiLink gkrellmrcComment Comment
+HiLink gkrellmrcFixme Todo
 
-	HiLink gkrellmrcComment Comment
-	HiLink gkrellmrcFixme Todo
+HiLink gkrellmrcString gkrellmrcConstant
+HiLink gkrellmrcNumber gkrellmrcConstant
+HiLink gkrellmrcRGBColor gkrellmrcConstant
+HiLink gkrellmrcExpandMode gkrellmrcConstant
+HiLink gkrellmrcConstant Constant
 
-	HiLink gkrellmrcString gkrellmrcConstant
-	HiLink gkrellmrcNumber gkrellmrcConstant
-	HiLink gkrellmrcRGBColor gkrellmrcConstant
-	HiLink gkrellmrcExpandMode gkrellmrcConstant
-	HiLink gkrellmrcConstant Constant
-
-	HiLink gkrellmrcMeterName gkrellmrcClass
-	HiLink gkrellmrcChartName gkrellmrcClass
-	HiLink gkrellmrcSpecialClassName gkrellmrcClass
-	HiLink gkrellmrcClass Type
+HiLink gkrellmrcMeterName gkrellmrcClass
+HiLink gkrellmrcChartName gkrellmrcClass
+HiLink gkrellmrcSpecialClassName gkrellmrcClass
+HiLink gkrellmrcClass Type
 
-	HiLink gkrellmrcGlobal gkrellmrcItem
-	HiLink gkrellmrcBuiltinExt gkrellmrcItem
-	HiLink gkrellmrcStyleItem gkrellmrcItem
-	HiLink gkrellmrcItem Function
+HiLink gkrellmrcGlobal gkrellmrcItem
+HiLink gkrellmrcBuiltinExt gkrellmrcItem
+HiLink gkrellmrcStyleItem gkrellmrcItem
+HiLink gkrellmrcItem Function
 
-	HiLink gkrellmrcSetCmd Special
-	HiLink gkrellmrcStyleCmd Statement
+HiLink gkrellmrcSetCmd Special
+HiLink gkrellmrcStyleCmd Statement
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "gkrellmrc"
diff --git a/runtime/syntax/gnash.vim b/runtime/syntax/gnash.vim
--- a/runtime/syntax/gnash.vim
+++ b/runtime/syntax/gnash.vim
@@ -15,11 +15,8 @@
 "		Vim is Charityware, see ":help Uganda"
 "
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax") || &compatible
+" quit when a syntax file was already loaded
+if exists("b:current_syntax") || &compatible
     finish
 endif
 
diff --git a/runtime/syntax/gnuplot.vim b/runtime/syntax/gnuplot.vim
--- a/runtime/syntax/gnuplot.vim
+++ b/runtime/syntax/gnuplot.vim
@@ -20,9 +20,8 @@
 " For vim version 5.x: Clear all syntax items
 " For vim version 6.x: Quit when a syntax file was already loaded
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -501,54 +500,46 @@ syn keyword gnuplotStatement	shell splot
 syn keyword gnuplotStatement	unset update
 
 " ---- Define the default highlighting ---- "
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_gnuplot_syntax_inits")
-  if version < 508
-    let did_gnuplot_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+" ---- Comments ---- "
+HiLink gnuplotComment		Comment
 
-  " ---- Comments ---- "
-  HiLink gnuplotComment		Comment
+" ---- Constants ---- "
+HiLink gnuplotString		String
+HiLink gnuplotNumber		Number
+HiLink gnuplotFloat		Float
 
-  " ---- Constants ---- "
-  HiLink gnuplotString		String
-  HiLink gnuplotNumber		Number
-  HiLink gnuplotFloat		Float
+" ---- Identifiers ---- "
+HiLink gnuplotIdentifier	Identifier
 
-  " ---- Identifiers ---- "
-  HiLink gnuplotIdentifier	Identifier
+" ---- Statements ---- "
+HiLink gnuplotConditional	Conditional
+HiLink gnuplotRepeat		Repeat
+HiLink gnuplotKeyword		Keyword
+HiLink gnuplotOperator	Operator
 
-  " ---- Statements ---- "
-  HiLink gnuplotConditional	Conditional
-  HiLink gnuplotRepeat		Repeat
-  HiLink gnuplotKeyword		Keyword
-  HiLink gnuplotOperator	Operator
+" ---- PreProcs ---- "
+HiLink gnuplotMacro		Macro
 
-  " ---- PreProcs ---- "
-  HiLink gnuplotMacro		Macro
-
-  " ---- Types ---- "
-  HiLink gnuplotStatement	Type
-  HiLink gnuplotFunc		Identifier
+" ---- Types ---- "
+HiLink gnuplotStatement	Type
+HiLink gnuplotFunc		Identifier
 
-  " ---- Specials ---- "
-  HiLink gnuplotSpecial		Special
-  HiLink gnuplotUnit		Special
-  HiLink gnuplotExternal	Special
+" ---- Specials ---- "
+HiLink gnuplotSpecial		Special
+HiLink gnuplotUnit		Special
+HiLink gnuplotExternal	Special
 
-  " ---- Errors ---- "
-  HiLink gnuplotError		Error
-  HiLink gnuplotOctalError	Error
+" ---- Errors ---- "
+HiLink gnuplotError		Error
+HiLink gnuplotOctalError	Error
 
-  " ---- Todos ---- "
-  HiLink gnuplotTodo		Todo
+" ---- Todos ---- "
+HiLink gnuplotTodo		Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "gnuplot"
 
diff --git a/runtime/syntax/gp.vim b/runtime/syntax/gp.vim
--- a/runtime/syntax/gp.vim
+++ b/runtime/syntax/gp.vim
@@ -4,9 +4,8 @@
 " Last change:	2012 Jan 08
 " URL:		http://pari.math.u-bordeaux.fr
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -59,33 +58,26 @@ syntax region gpParen		transparent start
 syntax match gpParenError	")"
 syntax match gpInParen contained "[{}]"
 
-if version >= 508 || !exists("did_gp_syn_inits")
-  if version < 508
-    let did_gp_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink gpConditional		Conditional
-  HiLink gpRepeat		Repeat
-  HiLink gpError		Error
-  HiLink gpParenError		gpError
-  HiLink gpInParen		gpError
-  HiLink gpStatement		Statement
-  HiLink gpString		String
-  HiLink gpComment		Comment
-  HiLink gpInterface		Type
-  HiLink gpInput		Type
-  HiLink gpInterfaceKey		Statement
-  HiLink gpFunction		Function
-  HiLink gpScope		Type
-  " contained ones
-  HiLink gpSpecial		Special
-  HiLink gpTodo			Todo
-  HiLink gpArgs			Type
-  delcommand HiLink
-endif
+HiLink gpConditional		Conditional
+HiLink gpRepeat		Repeat
+HiLink gpError		Error
+HiLink gpParenError		gpError
+HiLink gpInParen		gpError
+HiLink gpStatement		Statement
+HiLink gpString		String
+HiLink gpComment		Comment
+HiLink gpInterface		Type
+HiLink gpInput		Type
+HiLink gpInterfaceKey		Statement
+HiLink gpFunction		Function
+HiLink gpScope		Type
+" contained ones
+HiLink gpSpecial		Special
+HiLink gpTodo			Todo
+HiLink gpArgs			Type
+delcommand HiLink
 
 let b:current_syntax = "gp"
 let &cpo = s:cpo_save
diff --git a/runtime/syntax/grads.vim b/runtime/syntax/grads.vim
--- a/runtime/syntax/grads.vim
+++ b/runtime/syntax/grads.vim
@@ -7,11 +7,8 @@
 " This syntax file defines highlighting for only very few features of
 " the GrADS scripting language.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -53,34 +50,26 @@ syn match gradsComment	"\*.*"
 " syn match gradsTypos	"!="
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't hgs highlighting+yet
-if version >= 508 || !exists("did_gs_syn_inits")
-  if version < 508
-	let did_gs_syn_inits = 1
-	command -nargs=+ HiLink hi link <args>
-  else
-	command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't hgs highlighting+yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink gradsStatement		Statement
+HiLink gradsStatement		Statement
 
-  HiLink gradsString		String
-  HiLink gradsNumber		Number
+HiLink gradsString		String
+HiLink gradsNumber		Number
 
-  HiLink gradsFixVariables	Special
-  HiLink gradsVariables		Identifier
-  HiLink gradsglobalVariables	Special
-  HiLink gradsConst		Special
+HiLink gradsFixVariables	Special
+HiLink gradsVariables		Identifier
+HiLink gradsglobalVariables	Special
+HiLink gradsConst		Special
 
-  HiLink gradsClassMethods	Function
+HiLink gradsClassMethods	Function
 
-  HiLink gradsOperator		Operator
-  HiLink gradsComment		Comment
+HiLink gradsOperator		Operator
+HiLink gradsComment		Comment
 
-  HiLink gradsTypos		Error
+HiLink gradsTypos		Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "grads"
diff --git a/runtime/syntax/gretl.vim b/runtime/syntax/gretl.vim
--- a/runtime/syntax/gretl.vim
+++ b/runtime/syntax/gretl.vim
@@ -4,20 +4,13 @@
 " Last Change:  2006 Apr 30
 " Filenames:	*.inp *.gretl
 " URL:	http://uosis.mif.vu.lt/~zemlys/vim-syntax/gretl.vim
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
-if version >= 600
-  setlocal iskeyword=@,48-57,_,.
-else
-  set iskeyword=@,48-57,_,.
-endif
+setlocal iskeyword=@,48-57,_,.
 
 syn case match
 
@@ -68,34 +61,26 @@ syn match gBCend /\*)/
 syn region gBlockComment matchgroup=gCommentStart start="(\*" end="\*)"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_r_syn_inits")
-  if version < 508
-    let did_r_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink gComment      Comment
-  HiLink gCommentStart Comment
-  HiLink gBlockComment Comment
-  HiLink gString       String
-  HiLink gNumber       Number
-  HiLink gBoolean      Boolean
-  HiLink gFloat        Float
-  HiLink gCommands     Repeat	
-  HiLink gGenrFunc     Type
-  HiLink gDelimiter    Delimiter
-  HiLink gError        Error
-  HiLink gBraceError   Error
-  HiLink gCurlyError   Error
-  HiLink gParenError   Error
-  HiLink gIdentifier   Normal
-  HiLink gVariable     Identifier
-  HiLink gArrow	       Repeat
-  delcommand HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink gComment      Comment
+HiLink gCommentStart Comment
+HiLink gBlockComment Comment
+HiLink gString       String
+HiLink gNumber       Number
+HiLink gBoolean      Boolean
+HiLink gFloat        Float
+HiLink gCommands     Repeat	
+HiLink gGenrFunc     Type
+HiLink gDelimiter    Delimiter
+HiLink gError        Error
+HiLink gBraceError   Error
+HiLink gCurlyError   Error
+HiLink gParenError   Error
+HiLink gIdentifier   Normal
+HiLink gVariable     Identifier
+HiLink gArrow	       Repeat
+delcommand HiLink
 
 let b:current_syntax="gretl"
 
diff --git a/runtime/syntax/groovy.vim b/runtime/syntax/groovy.vim
--- a/runtime/syntax/groovy.vim
+++ b/runtime/syntax/groovy.vim
@@ -44,11 +44,9 @@
 " Let me know if you like it or send me patches, so that I can improve it
 " when I have time
 
-" Quit when a syntax file was already loaded
+" quit when a syntax file was already loaded
 if !exists("main_syntax")
-  if version < 600
-    syntax clear
-  elseif exists("b:current_syntax")
+  if exists("b:current_syntax")
     finish
   endif
   " we define it here so that included files can test for it
@@ -59,11 +57,7 @@ let s:cpo_save = &cpo
 set cpo&vim
 
 " don't use standard HiLink, it will not work with included syntax files
-if version < 508
-  command! -nargs=+ GroovyHiLink hi link <args>
-else
-  command! -nargs=+ GroovyHiLink hi def link <args>
-endif
+command! -nargs=+ GroovyHiLink hi def link <args>
 
 " ##########################
 " Java stuff taken from java.vim
@@ -329,23 +323,21 @@ if exists("groovy_highlight_debug")
 
   syn cluster groovyTop add=groovyDebug
 
-  if version >= 508 || !exists("did_c_syn_inits")
-    GroovyHiLink groovyDebug                 Debug
-    GroovyHiLink groovyDebugString           DebugString
-    GroovyHiLink groovyDebugStringError      groovyError
-    GroovyHiLink groovyDebugType             DebugType
-    GroovyHiLink groovyDebugBoolean          DebugBoolean
-    GroovyHiLink groovyDebugNumber           Debug
-    GroovyHiLink groovyDebugSpecial          DebugSpecial
-    GroovyHiLink groovyDebugSpecialCharacter DebugSpecial
-    GroovyHiLink groovyDebugCharacter        DebugString
-    GroovyHiLink groovyDebugParen            Debug
+  GroovyHiLink groovyDebug                 Debug
+  GroovyHiLink groovyDebugString           DebugString
+  GroovyHiLink groovyDebugStringError      groovyError
+  GroovyHiLink groovyDebugType             DebugType
+  GroovyHiLink groovyDebugBoolean          DebugBoolean
+  GroovyHiLink groovyDebugNumber           Debug
+  GroovyHiLink groovyDebugSpecial          DebugSpecial
+  GroovyHiLink groovyDebugSpecialCharacter DebugSpecial
+  GroovyHiLink groovyDebugCharacter        DebugString
+  GroovyHiLink groovyDebugParen            Debug
 
-    GroovyHiLink DebugString               String
-    GroovyHiLink DebugSpecial              Special
-    GroovyHiLink DebugBoolean              Boolean
-    GroovyHiLink DebugType                 Type
-  endif
+  GroovyHiLink DebugString               String
+  GroovyHiLink DebugSpecial              Special
+  GroovyHiLink DebugBoolean              Boolean
+  GroovyHiLink DebugType                 Type
 endif
 
 " Match all Exception classes
@@ -398,59 +390,54 @@ syn match   groovyParenError       "\]"
 
 " ###############################
 " java.vim default highlighting
-if version >= 508 || !exists("did_groovy_syn_inits")
-  if version < 508
-    let did_groovy_syn_inits = 1
-  endif
-  GroovyHiLink groovyFuncDef		Function
-  GroovyHiLink groovyBraces		Function
-  GroovyHiLink groovyBranch		Conditional
-  GroovyHiLink groovyUserLabelRef	groovyUserLabel
-  GroovyHiLink groovyLabel		Label
-  GroovyHiLink groovyUserLabel		Label
-  GroovyHiLink groovyConditional	Conditional
-  GroovyHiLink groovyRepeat		Repeat
-  GroovyHiLink groovyExceptions		Exception
-  GroovyHiLink groovyAssert 		Statement
-  GroovyHiLink groovyStorageClass	StorageClass
-  GroovyHiLink groovyMethodDecl		groovyStorageClass
-  GroovyHiLink groovyClassDecl		groovyStorageClass
-  GroovyHiLink groovyScopeDecl		groovyStorageClass
-  GroovyHiLink groovyBoolean		Boolean
-  GroovyHiLink groovySpecial		Special
-  GroovyHiLink groovySpecialError	Error
-  GroovyHiLink groovySpecialCharError	Error
-  GroovyHiLink groovyString		String
-  GroovyHiLink groovyRegexChar		String
-  GroovyHiLink groovyCharacter		Character
-  GroovyHiLink groovySpecialChar	SpecialChar
-  GroovyHiLink groovyNumber		Number
-  GroovyHiLink groovyError		Error
-  GroovyHiLink groovyStringError	Error
-  GroovyHiLink groovyStatement		Statement
-  GroovyHiLink groovyOperator		Operator
-  GroovyHiLink groovyComment		Comment
-  GroovyHiLink groovyDocComment		Comment
-  GroovyHiLink groovyLineComment	Comment
-  GroovyHiLink groovyConstant		Constant
-  GroovyHiLink groovyTypedef		Typedef
-  GroovyHiLink groovyTodo		Todo
+GroovyHiLink groovyFuncDef		Function
+GroovyHiLink groovyBraces		Function
+GroovyHiLink groovyBranch		Conditional
+GroovyHiLink groovyUserLabelRef	groovyUserLabel
+GroovyHiLink groovyLabel		Label
+GroovyHiLink groovyUserLabel		Label
+GroovyHiLink groovyConditional	Conditional
+GroovyHiLink groovyRepeat		Repeat
+GroovyHiLink groovyExceptions		Exception
+GroovyHiLink groovyAssert 		Statement
+GroovyHiLink groovyStorageClass	StorageClass
+GroovyHiLink groovyMethodDecl		groovyStorageClass
+GroovyHiLink groovyClassDecl		groovyStorageClass
+GroovyHiLink groovyScopeDecl		groovyStorageClass
+GroovyHiLink groovyBoolean		Boolean
+GroovyHiLink groovySpecial		Special
+GroovyHiLink groovySpecialError	Error
+GroovyHiLink groovySpecialCharError	Error
+GroovyHiLink groovyString		String
+GroovyHiLink groovyRegexChar		String
+GroovyHiLink groovyCharacter		Character
+GroovyHiLink groovySpecialChar	SpecialChar
+GroovyHiLink groovyNumber		Number
+GroovyHiLink groovyError		Error
+GroovyHiLink groovyStringError	Error
+GroovyHiLink groovyStatement		Statement
+GroovyHiLink groovyOperator		Operator
+GroovyHiLink groovyComment		Comment
+GroovyHiLink groovyDocComment		Comment
+GroovyHiLink groovyLineComment	Comment
+GroovyHiLink groovyConstant		Constant
+GroovyHiLink groovyTypedef		Typedef
+GroovyHiLink groovyTodo		Todo
 
-  GroovyHiLink groovyCommentTitle	SpecialComment
-  GroovyHiLink groovyDocTags		Special
-  GroovyHiLink groovyDocParam		Function
-  GroovyHiLink groovyCommentStar	groovyComment
-
-  GroovyHiLink groovyType		Type
-  GroovyHiLink groovyExternal		Include
+GroovyHiLink groovyCommentTitle	SpecialComment
+GroovyHiLink groovyDocTags		Special
+GroovyHiLink groovyDocParam		Function
+GroovyHiLink groovyCommentStar	groovyComment
 
-  GroovyHiLink htmlComment		Special
-  GroovyHiLink htmlCommentPart		Special
-  GroovyHiLink groovySpaceError		Error
-  GroovyHiLink groovyJDKBuiltin         Special
-  GroovyHiLink groovyJDKOperOverl       Operator
-  GroovyHiLink groovyJDKMethods         Function
-endif
+GroovyHiLink groovyType		Type
+GroovyHiLink groovyExternal		Include
+
+GroovyHiLink htmlComment		Special
+GroovyHiLink htmlCommentPart		Special
+GroovyHiLink groovySpaceError		Error
+GroovyHiLink groovyJDKBuiltin         Special
+GroovyHiLink groovyJDKOperOverl       Operator
+GroovyHiLink groovyJDKMethods         Function
 
 delcommand GroovyHiLink
 
diff --git a/runtime/syntax/gsp.vim b/runtime/syntax/gsp.vim
--- a/runtime/syntax/gsp.vim
+++ b/runtime/syntax/gsp.vim
@@ -5,11 +5,8 @@
 " Filenames:    *.gsp
 " URL:		http://www.constructicon.com/~nharward/vim/syntax/gsp.vim
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -18,21 +15,13 @@ if !exists("main_syntax")
 endif
 
 " Source HTML syntax
-if version < 600
-  source <sfile>:p:h/html.vim
-else
-  runtime! syntax/html.vim
-endif
+runtime! syntax/html.vim
 unlet b:current_syntax
 
 syn case match
 
 " Include Java syntax
-if version < 600
-  syn include @gspJava <sfile>:p:h/java.vim
-else
-  syn include @gspJava syntax/java.vim
-endif
+syn include @gspJava syntax/java.vim
 
 let s:cpo_save = &cpo
 set cpo&vim
diff --git a/runtime/syntax/gtkrc.vim b/runtime/syntax/gtkrc.vim
--- a/runtime/syntax/gtkrc.vim
+++ b/runtime/syntax/gtkrc.vim
@@ -6,19 +6,12 @@
 " URL: http://trific.ath.cx/Ftp/vim/syntax/gtkrc.vim
 
 " Setup
-if version >= 600
-	if exists("b:current_syntax")
-		finish
-	endif
-else
-	syntax clear
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+	finish
 endif
 
-if version >= 600
-	setlocal iskeyword=_,-,a-z,A-Z,48-57
-else
-	set iskeyword=_,-,a-z,A-Z,48-57
-endif
+setlocal iskeyword=_,-,a-z,A-Z,48-57
 
 syn case match
 
@@ -86,57 +79,50 @@ syn sync minlines=50
 syn sync match gtkrcSyncClass groupthere NONE "^\s*class\>"
 
 " Define the default highlighting
-if version >= 508 || !exists("did_gtkrc_syntax_inits")
-	if version < 508
-		let did_gtkrc_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink gtkrcComment Comment
-	HiLink gtkrcFixme Todo
+HiLink gtkrcComment Comment
+HiLink gtkrcFixme Todo
+
+HiLink gtkrcInclude Preproc
 
-	HiLink gtkrcInclude Preproc
-
-	HiLink gtkrcACString gtkrcString
-	HiLink gtkrcBString gtkrcString
-	HiLink gtkrcString String
-	HiLink gtkrcNumber Number
-	HiLink gtkrcStateName gtkrcConstant
-	HiLink gtkrcPriorityName gtkrcConstant
-	HiLink gtkrcTextDirName gtkrcConstant
-	HiLink gtkrcSettingsName Function
-	HiLink gtkrcStockName Function
-	HiLink gtkrcConstant Constant
+HiLink gtkrcACString gtkrcString
+HiLink gtkrcBString gtkrcString
+HiLink gtkrcString String
+HiLink gtkrcNumber Number
+HiLink gtkrcStateName gtkrcConstant
+HiLink gtkrcPriorityName gtkrcConstant
+HiLink gtkrcTextDirName gtkrcConstant
+HiLink gtkrcSettingsName Function
+HiLink gtkrcStockName Function
+HiLink gtkrcConstant Constant
 
-	HiLink gtkrcPathSpecial gtkrcSpecial
-	HiLink gtkrcWPathSpecial gtkrcSpecial
-	HiLink gtkrcRGBColor gtkrcSpecial
-	HiLink gtkrcKeyMod gtkrcSpecial
-	HiLink gtkrcSpecial Special
+HiLink gtkrcPathSpecial gtkrcSpecial
+HiLink gtkrcWPathSpecial gtkrcSpecial
+HiLink gtkrcRGBColor gtkrcSpecial
+HiLink gtkrcKeyMod gtkrcSpecial
+HiLink gtkrcSpecial Special
 
-	HiLink gtkrcTop gtkrcKeyword
-	HiLink gtkrcPathSet gtkrcKeyword
-	HiLink gtkrcStyleKeyword gtkrcKeyword
-	HiLink gtkrcFunction gtkrcKeyword
-	HiLink gtkrcBind gtkrcKeyword
-	HiLink gtkrcKeyword Keyword
+HiLink gtkrcTop gtkrcKeyword
+HiLink gtkrcPathSet gtkrcKeyword
+HiLink gtkrcStyleKeyword gtkrcKeyword
+HiLink gtkrcFunction gtkrcKeyword
+HiLink gtkrcBind gtkrcKeyword
+HiLink gtkrcKeyword Keyword
 
-	HiLink gtkrcClassNameGnome gtkrcGtkClass
-	HiLink gtkrcClassName gtkrcGtkClass
-	HiLink gtkrcFunctionName gtkrcGtkClass
-	HiLink gtkrcGtkClass Type
-
-	HiLink gtkrcImage gtkrcOtherword
-	HiLink gtkrcOtherword Function
+HiLink gtkrcClassNameGnome gtkrcGtkClass
+HiLink gtkrcClassName gtkrcGtkClass
+HiLink gtkrcFunctionName gtkrcGtkClass
+HiLink gtkrcGtkClass Type
 
-	HiLink gtkrcParenError gtkrcError
-	HiLink gtkrcBraceError gtkrcError
-	HiLink gtkrcBracketError gtkrcError
-	HiLink gtkrcError Error
+HiLink gtkrcImage gtkrcOtherword
+HiLink gtkrcOtherword Function
 
-	delcommand HiLink
-endif
+HiLink gtkrcParenError gtkrcError
+HiLink gtkrcBraceError gtkrcError
+HiLink gtkrcBracketError gtkrcError
+HiLink gtkrcError Error
+
+delcommand HiLink
 
 let b:current_syntax = "gtkrc"
diff --git a/runtime/syntax/haml.vim b/runtime/syntax/haml.vim
--- a/runtime/syntax/haml.vim
+++ b/runtime/syntax/haml.vim
@@ -2,7 +2,7 @@
 " Language:	Haml
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
 " Filenames:	*.haml
-" Last Change:	2010 Aug 09
+" Last Change:	2016 Aug 29
 
 if exists("b:current_syntax")
   finish
@@ -67,7 +67,7 @@ syn region  hamlJavascriptFilter matchgr
 syn region  hamlCSSFilter        matchgroup=hamlFilter start="^\z(\s*\):css\s*$"        end="^\%(\z1 \| *$\)\@!" contains=@htmlCss,hamlInterpolation keepend
 syn region  hamlSassFilter       matchgroup=hamlFilter start="^\z(\s*\):sass\s*$"       end="^\%(\z1 \| *$\)\@!" contains=@hamlSassTop
 
-syn region  hamlJavascriptBlock start="^\z(\s*\)%script" nextgroup=@hamlComponent,hamlError end="^\%(\z1 \| *$\)\@!" contains=@hamlTop,@htmlJavaScript keepend
+syn region  hamlJavascriptBlock start="^\z(\s*\)%script\%((type=[\"']text/javascript[\"'])\)\=\s*$" nextgroup=@hamlComponent,hamlError end="^\%(\z1 \| *$\)\@!" contains=@hamlTop,@htmlJavaScript keepend
 syn region  hamlCssBlock        start="^\z(\s*\)%style" nextgroup=@hamlComponent,hamlError  end="^\%(\z1 \| *$\)\@!" contains=@hamlTop,@htmlCss keepend
 syn match   hamlError "\$" contained
 
diff --git a/runtime/syntax/hamster.vim b/runtime/syntax/hamster.vim
--- a/runtime/syntax/hamster.vim
+++ b/runtime/syntax/hamster.vim
@@ -12,10 +12,8 @@
 " for news and mail, a build-in script language, the GUI allows translation to
 " other languages, it can be used in a network and that's not all features...
 "
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -358,24 +356,16 @@ syn cluster hamsterComment	contains=hams
 syn sync ccomment hamsterHashComment
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_hamster_syn_inits")
-    if version < 508
-        let did_hamster_syn_inits = 1
-        command -nargs=+ HiLink hi link <args>
-    else
-        command -nargs=+ HiLink hi def link <args>
-    endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-    HiLink hamsterHashComment	Comment
-    HiLink hamsterSpecial	Special
-    HiLink hamsterStatement	Statement
-    HiLink hamsterString	String
-    HiLink hamsterFunction	Function
+HiLink hamsterHashComment	Comment
+HiLink hamsterSpecial	Special
+HiLink hamsterStatement	Statement
+HiLink hamsterString	String
+HiLink hamsterFunction	Function
 
-    delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "hamster"
 
diff --git a/runtime/syntax/haskell.vim b/runtime/syntax/haskell.vim
--- a/runtime/syntax/haskell.vim
+++ b/runtime/syntax/haskell.vim
@@ -32,10 +32,8 @@
 "	       to attribution of work.
 " 2008 Dec 15: Added comments as contained element in import statements
 
-" Remove any old syntax stuff hanging around
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -127,67 +125,59 @@ syntax match	cCommentStartError display 
 syn region	cCppString	start=+L\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial contained
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_hs_syntax_inits")
-  if version < 508
-    let did_hs_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink hsModule			  hsStructure
-  HiLink hsImport			  Include
-  HiLink hsImportMod			  hsImport
-  HiLink hsInfix			  PreProc
-  HiLink hsStructure			  Structure
-  HiLink hsStatement			  Statement
-  HiLink hsConditional			  Conditional
-  HiLink hsSpecialChar			  SpecialChar
-  HiLink hsTypedef			  Typedef
-  HiLink hsVarSym			  hsOperator
-  HiLink hsConSym			  hsOperator
-  HiLink hsOperator			  Operator
-  if exists("hs_highlight_delimiters")
-    " Some people find this highlighting distracting.
-    HiLink hsDelimiter			  Delimiter
-  endif
-  HiLink hsSpecialCharError		  Error
-  HiLink hsString			  String
-  HiLink hsCharacter			  Character
-  HiLink hsNumber			  Number
-  HiLink hsFloat			  Float
-  HiLink hsConditional			  Conditional
-  HiLink hsLiterateComment		  hsComment
-  HiLink hsBlockComment		  hsComment
-  HiLink hsLineComment			  hsComment
-  HiLink hsComment			  Comment
-  HiLink hsPragma			  SpecialComment
-  HiLink hsBoolean			  Boolean
-  HiLink hsType			  Type
-  HiLink hsMaybe			  hsEnumConst
-  HiLink hsOrdering			  hsEnumConst
-  HiLink hsEnumConst			  Constant
-  HiLink hsDebug			  Debug
+HiLink hsModule			  hsStructure
+HiLink hsImport			  Include
+HiLink hsImportMod			  hsImport
+HiLink hsInfix			  PreProc
+HiLink hsStructure			  Structure
+HiLink hsStatement			  Statement
+HiLink hsConditional			  Conditional
+HiLink hsSpecialChar			  SpecialChar
+HiLink hsTypedef			  Typedef
+HiLink hsVarSym			  hsOperator
+HiLink hsConSym			  hsOperator
+HiLink hsOperator			  Operator
+if exists("hs_highlight_delimiters")
+" Some people find this highlighting distracting.
+HiLink hsDelimiter			  Delimiter
+endif
+HiLink hsSpecialCharError		  Error
+HiLink hsString			  String
+HiLink hsCharacter			  Character
+HiLink hsNumber			  Number
+HiLink hsFloat			  Float
+HiLink hsConditional			  Conditional
+HiLink hsLiterateComment		  hsComment
+HiLink hsBlockComment		  hsComment
+HiLink hsLineComment			  hsComment
+HiLink hsComment			  Comment
+HiLink hsPragma			  SpecialComment
+HiLink hsBoolean			  Boolean
+HiLink hsType			  Type
+HiLink hsMaybe			  hsEnumConst
+HiLink hsOrdering			  hsEnumConst
+HiLink hsEnumConst			  Constant
+HiLink hsDebug			  Debug
 
-  HiLink cCppString		hsString
-  HiLink cCommentStart		hsComment
-  HiLink cCommentError		hsError
-  HiLink cCommentStartError	hsError
-  HiLink cInclude		Include
-  HiLink cPreProc		PreProc
-  HiLink cDefine		Macro
-  HiLink cIncluded		hsString
-  HiLink cError			Error
-  HiLink cPreCondit		PreCondit
-  HiLink cComment		Comment
-  HiLink cCppSkip		cCppOut
-  HiLink cCppOut2		cCppOut
-  HiLink cCppOut		Comment
+HiLink cCppString		hsString
+HiLink cCommentStart		hsComment
+HiLink cCommentError		hsError
+HiLink cCommentStartError	hsError
+HiLink cInclude		Include
+HiLink cPreProc		PreProc
+HiLink cDefine		Macro
+HiLink cIncluded		hsString
+HiLink cError			Error
+HiLink cPreCondit		PreCondit
+HiLink cComment		Comment
+HiLink cCppSkip		cCppOut
+HiLink cCppOut2		cCppOut
+HiLink cCppOut		Comment
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "haskell"
 
diff --git a/runtime/syntax/haste.vim b/runtime/syntax/haste.vim
--- a/runtime/syntax/haste.vim
+++ b/runtime/syntax/haste.vim
@@ -12,11 +12,8 @@
 if exists("b:current_syntax")
     finish
 endif
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/hastepreproc.vim b/runtime/syntax/hastepreproc.vim
--- a/runtime/syntax/hastepreproc.vim
+++ b/runtime/syntax/hastepreproc.vim
@@ -5,24 +5,13 @@
 "		files
 " Version:	0.5
 
-" HASTE
+" quit when a syntax file was already loaded
 if exists("b:current_syntax")
-    finish
-endif
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
   finish
 endif
-" Read the C syntax to start with
-if version < 600
-    so <sfile>:p:h/haste.vim
-else
-    runtime! syntax/haste.vim
-    unlet b:current_syntax
-endif
+" Read the haste syntax to start with
+runtime! syntax/haste.vim
+unlet b:current_syntax
 
 " case is significant
 syn case match
diff --git a/runtime/syntax/hb.vim b/runtime/syntax/hb.vim
--- a/runtime/syntax/hb.vim
+++ b/runtime/syntax/hb.vim
@@ -4,11 +4,8 @@
 " URL:		http://bachue.com/hb/vim/syntax/hb.vim
 " Last Change:	2012 Jan 08 by Thilo Six
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -63,31 +60,23 @@ syn region HBText matchgroup=HBDirective
 syn match HBComment "^#.*$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_hb_syntax_inits")
-  if version < 508
-    let did_hb_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink HBhtmlString			 String
+HiLink HBhtmlTagN			 Function
+HiLink htmlSpecialChar		 String
 
-  HiLink HBhtmlString			 String
-  HiLink HBhtmlTagN			 Function
-  HiLink htmlSpecialChar		 String
+HiLink HBInvalidLine Error
+HiLink HBFoobar Comment
+hi HBFileName guibg=lightgray guifg=black
+HiLink HBDirectiveError Error
+HiLink HBDirectiveBlockEnd HBDirectiveKeyword
+hi HBDirectiveKeyword guibg=lightgray guifg=darkgreen
+HiLink HBComment Comment
+HiLink HBhtmlTagSk Statement
 
-  HiLink HBInvalidLine Error
-  HiLink HBFoobar Comment
-  hi HBFileName guibg=lightgray guifg=black
-  HiLink HBDirectiveError Error
-  HiLink HBDirectiveBlockEnd HBDirectiveKeyword
-  hi HBDirectiveKeyword guibg=lightgray guifg=darkgreen
-  HiLink HBComment Comment
-  HiLink HBhtmlTagSk Statement
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 syn sync match Normal grouphere NONE "^:\s*$"
 syn sync match Normal grouphere NONE "^:\s*lib\s\+[^ \t]\+$"
diff --git a/runtime/syntax/hercules.vim b/runtime/syntax/hercules.vim
--- a/runtime/syntax/hercules.vim
+++ b/runtime/syntax/hercules.vim
@@ -7,11 +7,8 @@
 "		that an IC's physical design matches its logical design and
 "		satisfies manufacturing rules.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -101,32 +98,23 @@ syn match     herculesOutput "error\s*=\
 syn sync      lines=100
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_hercules_syntax_inits")
-  if version < 508
-    let did_hercules_syntax_inits = 1
-    " Default methods for highlighting.
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink herculesStatement  Statement
-  HiLink herculesType       Type
-  HiLink herculesComment    Comment
-  HiLink herculesPreProc    PreProc
-  HiLink herculesTodo       Todo
-  HiLink herculesOutput     Include
-  HiLink herculesCmdCmnt    Identifier
-  HiLink herculesNumber     Number
-  HiLink herculesBraceError herculesError
-  HiLink herculesCurlyError herculesError
-  HiLink herculesParenError herculesError
-  HiLink herculesError      Error
+HiLink herculesStatement  Statement
+HiLink herculesType       Type
+HiLink herculesComment    Comment
+HiLink herculesPreProc    PreProc
+HiLink herculesTodo       Todo
+HiLink herculesOutput     Include
+HiLink herculesCmdCmnt    Identifier
+HiLink herculesNumber     Number
+HiLink herculesBraceError herculesError
+HiLink herculesCurlyError herculesError
+HiLink herculesParenError herculesError
+HiLink herculesError      Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "hercules"
 
diff --git a/runtime/syntax/hex.vim b/runtime/syntax/hex.vim
--- a/runtime/syntax/hex.vim
+++ b/runtime/syntax/hex.vim
@@ -25,11 +25,8 @@
 " States in parentheses in the upper format description indicate that they
 " should not appear in a valid file.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -68,34 +65,26 @@ syn match hexChecksum "[0-9a-fA-F]\{2}$"
 syn region hexExtAdrBlock start="^:[0-9a-fA-F]\{7}[24]" skip="^:[0-9a-fA-F]\{7}0" end="^:"me=s-1 fold transparent
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_hex_syntax_inits")
-  if version < 508
-    let did_hex_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting. Can be overridden later
-  HiLink hexRecStart            hexRecType
-  HiLink hexDataByteCount       Constant
-  hi def hexAddressFieldUnknown term=italic cterm=italic gui=italic
-  HiLink hexDataAddress         Comment
-  HiLink hexNoAddress           DiffAdd
-  HiLink hexRecTypeUnknown      hexRecType
-  HiLink hexRecType             WarningMsg
-  hi def hexDataFieldUnknown    term=italic cterm=italic gui=italic
-  hi def hexDataOdd             term=bold cterm=bold gui=bold
-  hi def hexDataEven            term=NONE cterm=NONE gui=NONE
-  HiLink hexDataUnexpected      Error
-  HiLink hexExtendedAddress     hexDataAddress
-  HiLink hexStartAddress        hexDataAddress
-  HiLink hexChecksum            DiffChange
+" The default methods for highlighting. Can be overridden later
+HiLink hexRecStart            hexRecType
+HiLink hexDataByteCount       Constant
+hi def hexAddressFieldUnknown term=italic cterm=italic gui=italic
+HiLink hexDataAddress         Comment
+HiLink hexNoAddress           DiffAdd
+HiLink hexRecTypeUnknown      hexRecType
+HiLink hexRecType             WarningMsg
+hi def hexDataFieldUnknown    term=italic cterm=italic gui=italic
+hi def hexDataOdd             term=bold cterm=bold gui=bold
+hi def hexDataEven            term=NONE cterm=NONE gui=NONE
+HiLink hexDataUnexpected      Error
+HiLink hexExtendedAddress     hexDataAddress
+HiLink hexStartAddress        hexDataAddress
+HiLink hexChecksum            DiffChange
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "hex"
 
diff --git a/runtime/syntax/hog.vim b/runtime/syntax/hog.vim
--- a/runtime/syntax/hog.vim
+++ b/runtime/syntax/hog.vim
@@ -4,9 +4,8 @@
 " Last Change: 2015 Oct 24  -> Rename syntax items from Snort -> Hog
 "              2012 Oct 24  -> Originalish release
 
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
diff --git a/runtime/syntax/hostsaccess.vim b/runtime/syntax/hostsaccess.vim
--- a/runtime/syntax/hostsaccess.vim
+++ b/runtime/syntax/hostsaccess.vim
@@ -15,12 +15,8 @@ if exists("b:current_syntax")
 endif
 
 " For a starter we just use conf.vim for highlighting
-if version < 600
-  so <sfile>:p:h/conf.vim
-else
-  runtime! syntax/conf.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/conf.vim
+unlet b:current_syntax
 
 
 let b:current_syntax = "hostsaccess"
diff --git a/runtime/syntax/html.vim b/runtime/syntax/html.vim
--- a/runtime/syntax/html.vim
+++ b/runtime/syntax/html.vim
@@ -7,12 +7,9 @@
 
 " Please check :help html.vim for some comments and a description of the options
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
+" quit when a syntax file was already loaded
 if !exists("main_syntax")
-  if version < 600
-    syntax clear
-  elseif exists("b:current_syntax")
+  if exists("b:current_syntax")
     finish
   endif
   let main_syntax = 'html'
@@ -22,11 +19,7 @@ let s:cpo_save = &cpo
 set cpo&vim
 
 " don't use standard HiLink, it will not work with included syntax files
-if version < 508
-  command! -nargs=+ HtmlHiLink hi link <args>
-else
-  command! -nargs=+ HtmlHiLink hi def link <args>
-endif
+command! -nargs=+ HtmlHiLink hi def link <args>
 
 syntax spell toplevel
 
@@ -221,72 +214,67 @@ if main_syntax == "html"
 endif
 
 " The default highlighting.
-if version >= 508 || !exists("did_html_syn_inits")
-  if version < 508
-    let did_html_syn_inits = 1
+HtmlHiLink htmlTag                     Function
+HtmlHiLink htmlEndTag                  Identifier
+HtmlHiLink htmlArg                     Type
+HtmlHiLink htmlTagName                 htmlStatement
+HtmlHiLink htmlSpecialTagName          Exception
+HtmlHiLink htmlValue                     String
+HtmlHiLink htmlSpecialChar             Special
+
+if !exists("html_no_rendering")
+  HtmlHiLink htmlH1                      Title
+  HtmlHiLink htmlH2                      htmlH1
+  HtmlHiLink htmlH3                      htmlH2
+  HtmlHiLink htmlH4                      htmlH3
+  HtmlHiLink htmlH5                      htmlH4
+  HtmlHiLink htmlH6                      htmlH5
+  HtmlHiLink htmlHead                    PreProc
+  HtmlHiLink htmlTitle                   Title
+  HtmlHiLink htmlBoldItalicUnderline     htmlBoldUnderlineItalic
+  HtmlHiLink htmlUnderlineBold           htmlBoldUnderline
+  HtmlHiLink htmlUnderlineItalicBold     htmlBoldUnderlineItalic
+  HtmlHiLink htmlUnderlineBoldItalic     htmlBoldUnderlineItalic
+  HtmlHiLink htmlItalicUnderline         htmlUnderlineItalic
+  HtmlHiLink htmlItalicBold              htmlBoldItalic
+  HtmlHiLink htmlItalicBoldUnderline     htmlBoldUnderlineItalic
+  HtmlHiLink htmlItalicUnderlineBold     htmlBoldUnderlineItalic
+  HtmlHiLink htmlLink                    Underlined
+  HtmlHiLink htmlLeadingSpace            None
+  if !exists("html_my_rendering")
+    hi def htmlBold                term=bold cterm=bold gui=bold
+    hi def htmlBoldUnderline       term=bold,underline cterm=bold,underline gui=bold,underline
+    hi def htmlBoldItalic          term=bold,italic cterm=bold,italic gui=bold,italic
+    hi def htmlBoldUnderlineItalic term=bold,italic,underline cterm=bold,italic,underline gui=bold,italic,underline
+    hi def htmlUnderline           term=underline cterm=underline gui=underline
+    hi def htmlUnderlineItalic     term=italic,underline cterm=italic,underline gui=italic,underline
+    hi def htmlItalic              term=italic cterm=italic gui=italic
   endif
-  HtmlHiLink htmlTag                     Function
-  HtmlHiLink htmlEndTag                  Identifier
-  HtmlHiLink htmlArg                     Type
-  HtmlHiLink htmlTagName                 htmlStatement
-  HtmlHiLink htmlSpecialTagName          Exception
-  HtmlHiLink htmlValue                     String
-  HtmlHiLink htmlSpecialChar             Special
-  
-  if !exists("html_no_rendering")
-    HtmlHiLink htmlH1                      Title
-    HtmlHiLink htmlH2                      htmlH1
-    HtmlHiLink htmlH3                      htmlH2
-    HtmlHiLink htmlH4                      htmlH3
-    HtmlHiLink htmlH5                      htmlH4
-    HtmlHiLink htmlH6                      htmlH5
-    HtmlHiLink htmlHead                    PreProc
-    HtmlHiLink htmlTitle                   Title
-    HtmlHiLink htmlBoldItalicUnderline     htmlBoldUnderlineItalic
-    HtmlHiLink htmlUnderlineBold           htmlBoldUnderline
-    HtmlHiLink htmlUnderlineItalicBold     htmlBoldUnderlineItalic
-    HtmlHiLink htmlUnderlineBoldItalic     htmlBoldUnderlineItalic
-    HtmlHiLink htmlItalicUnderline         htmlUnderlineItalic
-    HtmlHiLink htmlItalicBold              htmlBoldItalic
-    HtmlHiLink htmlItalicBoldUnderline     htmlBoldUnderlineItalic
-    HtmlHiLink htmlItalicUnderlineBold     htmlBoldUnderlineItalic
-    HtmlHiLink htmlLink                    Underlined
-    HtmlHiLink htmlLeadingSpace            None
-    if !exists("html_my_rendering")
-      hi def htmlBold                term=bold cterm=bold gui=bold
-      hi def htmlBoldUnderline       term=bold,underline cterm=bold,underline gui=bold,underline
-      hi def htmlBoldItalic          term=bold,italic cterm=bold,italic gui=bold,italic
-      hi def htmlBoldUnderlineItalic term=bold,italic,underline cterm=bold,italic,underline gui=bold,italic,underline
-      hi def htmlUnderline           term=underline cterm=underline gui=underline
-      hi def htmlUnderlineItalic     term=italic,underline cterm=italic,underline gui=italic,underline
-      hi def htmlItalic              term=italic cterm=italic gui=italic
-    endif
-  endif
-  
-  HtmlHiLink htmlPreStmt            PreProc
-  HtmlHiLink htmlPreError           Error
-  HtmlHiLink htmlPreProc            PreProc
-  HtmlHiLink htmlPreAttr            String
-  HtmlHiLink htmlPreProcAttrName    PreProc
-  HtmlHiLink htmlPreProcAttrError   Error
-  HtmlHiLink htmlSpecial            Special
-  HtmlHiLink htmlSpecialChar        Special
-  HtmlHiLink htmlString             String
-  HtmlHiLink htmlStatement          Statement
-  HtmlHiLink htmlComment            Comment
-  HtmlHiLink htmlCommentPart        Comment
-  HtmlHiLink htmlValue              String
-  HtmlHiLink htmlCommentError       htmlError
-  HtmlHiLink htmlTagError           htmlError
-  HtmlHiLink htmlEvent              javaScript
-  HtmlHiLink htmlError              Error
-  
-  HtmlHiLink javaScript             Special
-  HtmlHiLink javaScriptExpression   javaScript
-  HtmlHiLink htmlCssStyleComment    Comment
-  HtmlHiLink htmlCssDefinition      Special
 endif
 
+HtmlHiLink htmlPreStmt            PreProc
+HtmlHiLink htmlPreError           Error
+HtmlHiLink htmlPreProc            PreProc
+HtmlHiLink htmlPreAttr            String
+HtmlHiLink htmlPreProcAttrName    PreProc
+HtmlHiLink htmlPreProcAttrError   Error
+HtmlHiLink htmlSpecial            Special
+HtmlHiLink htmlSpecialChar        Special
+HtmlHiLink htmlString             String
+HtmlHiLink htmlStatement          Statement
+HtmlHiLink htmlComment            Comment
+HtmlHiLink htmlCommentPart        Comment
+HtmlHiLink htmlValue              String
+HtmlHiLink htmlCommentError       htmlError
+HtmlHiLink htmlTagError           htmlError
+HtmlHiLink htmlEvent              javaScript
+HtmlHiLink htmlError              Error
+
+HtmlHiLink javaScript             Special
+HtmlHiLink javaScriptExpression   javaScript
+HtmlHiLink htmlCssStyleComment    Comment
+HtmlHiLink htmlCssDefinition      Special
+
 delcommand HtmlHiLink
 
 let b:current_syntax = "html"
diff --git a/runtime/syntax/htmlcheetah.vim b/runtime/syntax/htmlcheetah.vim
--- a/runtime/syntax/htmlcheetah.vim
+++ b/runtime/syntax/htmlcheetah.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Max Ischenko <mfi@ukr.net>
 " Last Change: 2003-05-11
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -15,14 +12,9 @@ if !exists("main_syntax")
   let main_syntax = 'html'
 endif
 
-if version < 600
-  so <sfile>:p:h/cheetah.vim
-  so <sfile>:p:h/html.vim
-else
-  runtime! syntax/cheetah.vim
-  runtime! syntax/html.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/cheetah.vim
+runtime! syntax/html.vim
+unlet b:current_syntax
 
 syntax cluster htmlPreproc add=cheetahPlaceHolder
 syntax cluster htmlString add=cheetahPlaceHolder
diff --git a/runtime/syntax/htmldjango.vim b/runtime/syntax/htmldjango.vim
--- a/runtime/syntax/htmldjango.vim
+++ b/runtime/syntax/htmldjango.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Dave Hodder <dmh@dmh.org.uk>
 " Last Change:	2014 Jul 13
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -15,14 +12,9 @@ if !exists("main_syntax")
   let main_syntax = 'html'
 endif
 
-if version < 600
-  so <sfile>:p:h/django.vim
-  so <sfile>:p:h/html.vim
-else
-  runtime! syntax/django.vim
-  runtime! syntax/html.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/django.vim
+runtime! syntax/html.vim
+unlet b:current_syntax
 
 syn cluster djangoBlocks add=djangoTagBlock,djangoVarBlock,djangoComment,djangoComBlock
 
diff --git a/runtime/syntax/htmlm4.vim b/runtime/syntax/htmlm4.vim
--- a/runtime/syntax/htmlm4.vim
+++ b/runtime/syntax/htmlm4.vim
@@ -4,11 +4,8 @@
 " URL:		http://www.fleiner.com/vim/syntax/htmlm4.vim
 " Last Change:	2001 Apr 30
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -17,19 +14,12 @@ if !exists("main_syntax")
   let main_syntax='htmlm4'
 endif
 
-if version < 600
-  so <sfile>:p:h/html.vim
-else
-  runtime! syntax/html.vim
-endif
+runtime! syntax/html.vim
 unlet b:current_syntax
 syn case match
 
-if version < 600
-  so <sfile>:p:h/m4.vim
-else
-  runtime! syntax/m4.vim
-endif
+runtime! syntax/m4.vim
+
 unlet b:current_syntax
 syn cluster htmlPreproc add=@m4Top
 syn cluster m4StringContents add=htmlTag,htmlEndTag
diff --git a/runtime/syntax/htmlos.vim b/runtime/syntax/htmlos.vim
--- a/runtime/syntax/htmlos.vim
+++ b/runtime/syntax/htmlos.vim
@@ -6,11 +6,8 @@
 " Last Change:	2003 May 11
 "
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -18,12 +15,8 @@ if !exists("main_syntax")
   let main_syntax = 'htmlos'
 endif
 
-if version < 600
-  so <sfile>:p:h/html.vim
-else
-  runtime! syntax/html.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/html.vim
+unlet b:current_syntax
 
 syn cluster htmlPreproc add=htmlosRegion
 
@@ -121,42 +114,34 @@ else
 endif
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_htmlos_syn_inits")
-  if version < 508
-    let did_htmlos_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting.  Can be overridden later
-  HiLink	 htmlosSpecialIdentifier	Operator
-  HiLink	 htmlosIdentifier	Identifier
-  HiLink	 htmlosStorageClass	StorageClass
-  HiLink	 htmlosComment	Comment
-  HiLink	 htmlosBoolean	Boolean
-  HiLink	 htmlosStringSingle	String
-  HiLink	 htmlosStringDouble	String
-  HiLink	 htmlosNumber	Number
-  HiLink	 htmlosFloat	Float
-  HiLink	 htmlosFunctions	Function
-  HiLink	 htmlosRepeat	Repeat
-  HiLink	 htmlosConditional	Conditional
-  HiLink	 htmlosLabel	Label
-  HiLink	 htmlosStatement	Statement
-  HiLink	 htmlosKeyword	Statement
-  HiLink	 htmlosType	Type
-  HiLink	 htmlosDefine	Define
-  HiLink	 htmlosParent	Delimiter
-  HiLink	 htmlosError	Error
-  HiLink	 htmlosTodo	Todo
-  HiLink	htmlosOperator	Operator
-  HiLink	htmlosRelation	Operator
+" The default methods for highlighting.  Can be overridden later
+HiLink	 htmlosSpecialIdentifier	Operator
+HiLink	 htmlosIdentifier	Identifier
+HiLink	 htmlosStorageClass	StorageClass
+HiLink	 htmlosComment	Comment
+HiLink	 htmlosBoolean	Boolean
+HiLink	 htmlosStringSingle	String
+HiLink	 htmlosStringDouble	String
+HiLink	 htmlosNumber	Number
+HiLink	 htmlosFloat	Float
+HiLink	 htmlosFunctions	Function
+HiLink	 htmlosRepeat	Repeat
+HiLink	 htmlosConditional	Conditional
+HiLink	 htmlosLabel	Label
+HiLink	 htmlosStatement	Statement
+HiLink	 htmlosKeyword	Statement
+HiLink	 htmlosType	Type
+HiLink	 htmlosDefine	Define
+HiLink	 htmlosParent	Delimiter
+HiLink	 htmlosError	Error
+HiLink	 htmlosTodo	Todo
+HiLink	htmlosOperator	Operator
+HiLink	htmlosRelation	Operator
 
-  delcommand HiLink
-endif
+delcommand HiLink
 let b:current_syntax = "htmlos"
 
 if main_syntax == 'htmlos'
diff --git a/runtime/syntax/ia64.vim b/runtime/syntax/ia64.vim
--- a/runtime/syntax/ia64.vim
+++ b/runtime/syntax/ia64.vim
@@ -6,11 +6,8 @@
 " File Version: 0.7
 " Last Change:  2006 Sep 08
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -19,11 +16,7 @@ endif
 syn case ignore
 
 "  Identifier Keyword characters (defines \k)
-if version >= 600
-	setlocal iskeyword=@,48-57,#,$,.,:,?,@-@,_,~
-else
-	set iskeyword=@,48-57,#,$,.,:,?,@-@,_,~
-endif
+setlocal iskeyword=@,48-57,#,$,.,:,?,@-@,_,~
 
 syn sync minlines=5
 
@@ -268,43 +261,35 @@ syn match ia64data "real\([48]\|1[06]\)\
 syn match ia64data "stringz\=\(\(\(\.ua\)\=\(\.msb\|\.lsb\)\=\)\|\(\(\.msb\|\.lsb\)\=\(\.ua\)\=\)\)\=\>"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_ia64_syn_inits")
-	if version < 508
-		let did_ia64_syn_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	"put masm groups with our groups
-	HiLink masmOperator	ia64operator
-	HiLink masmDirective	ia64Directive
-	HiLink masmOpcode	ia64Opcode
-	HiLink masmIdentifier	ia64Identifier
-	HiLink masmFloat	ia64Float
+"put masm groups with our groups
+HiLink masmOperator	ia64operator
+HiLink masmDirective	ia64Directive
+HiLink masmOpcode	ia64Opcode
+HiLink masmIdentifier	ia64Identifier
+HiLink masmFloat	ia64Float
 
-	"ia64 specific stuff
-	HiLink ia64Label	Define
-	HiLink ia64Comment	Comment
-	HiLink ia64Directive	Type
-	HiLink ia64opcode	Statement
-	HiLink ia64registers	Operator
-	HiLink ia64string	String
-	HiLink ia64Hex		Number
-	HiLink ia64Binary	Number
-	HiLink ia64Octal	Number
-	HiLink ia64Float	Float
-	HiLink ia64Decimal	Number
-	HiLink ia64Identifier	Identifier
-	HiLink ia64data		Type
-	HiLink ia64delimiter	Delimiter
-	HiLink ia64operator	Operator
-	HiLink ia64Todo		Todo
+"ia64 specific stuff
+HiLink ia64Label	Define
+HiLink ia64Comment	Comment
+HiLink ia64Directive	Type
+HiLink ia64opcode	Statement
+HiLink ia64registers	Operator
+HiLink ia64string	String
+HiLink ia64Hex		Number
+HiLink ia64Binary	Number
+HiLink ia64Octal	Number
+HiLink ia64Float	Float
+HiLink ia64Decimal	Number
+HiLink ia64Identifier	Identifier
+HiLink ia64data		Type
+HiLink ia64delimiter	Delimiter
+HiLink ia64operator	Operator
+HiLink ia64Todo		Todo
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "ia64"
 
diff --git a/runtime/syntax/icemenu.vim b/runtime/syntax/icemenu.vim
--- a/runtime/syntax/icemenu.vim
+++ b/runtime/syntax/icemenu.vim
@@ -6,10 +6,8 @@
 " Comment:	Icewm is a lightweight window manager.  This adds syntax
 "		highlighting when editing your user's menu file (~/.icewm/menu).
 
-" clear existing syntax
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
diff --git a/runtime/syntax/icon.vim b/runtime/syntax/icon.vim
--- a/runtime/syntax/icon.vim
+++ b/runtime/syntax/icon.vim
@@ -4,11 +4,8 @@
 " URL:		ftp://ftp.halcyon.com/pub/users/wturner/icon.vim
 " Last Change:	2003 May 11
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -157,56 +154,48 @@ exec "syn sync ccomment iconComment minl
 
 " Define the default highlighting.
 
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting
-if version >= 508 || !exists("did_icon_syn_inits")
-  if version < 508
-    let did_icon_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting.  Can be overridden later
+" The default methods for highlighting.  Can be overridden later
+
+" HiLink iconSpecialCharacter	iconSpecial
 
-  " HiLink iconSpecialCharacter	iconSpecial
-
-  HiLink iconOctalError		iconError
-  HiLink iconParenError		iconError
-  HiLink iconInParen		iconError
-  HiLink iconCommentError	iconError
-  HiLink iconSpaceError		iconError
-  HiLink iconCommentError	iconError
-  HiLink iconIncluded		iconString
-  HiLink iconCommentString	iconString
-  HiLink iconComment2String	iconString
-  HiLink iconCommentSkip	iconComment
+HiLink iconOctalError		iconError
+HiLink iconParenError		iconError
+HiLink iconInParen		iconError
+HiLink iconCommentError	iconError
+HiLink iconSpaceError		iconError
+HiLink iconCommentError	iconError
+HiLink iconIncluded		iconString
+HiLink iconCommentString	iconString
+HiLink iconComment2String	iconString
+HiLink iconCommentSkip	iconComment
 
-  HiLink iconUserLabel		Label
-  HiLink iconCharacter		Character
-  HiLink iconNumber			Number
-  HiLink iconRadix			Number
-  HiLink iconFloat			Float
-  HiLink iconInclude		Include
-  HiLink iconPreProc		PreProc
-  HiLink iconDefine			Macro
-  HiLink iconError			Error
-  HiLink iconStatement		Statement
-  HiLink iconPreCondit		PreCondit
-  HiLink iconString			String
-  HiLink iconCset			String
-  HiLink iconComment		Comment
-  HiLink iconSpecial		SpecialChar
-  HiLink iconTodo			Todo
-  HiLink iconStorageClass	StorageClass
-  HiLink iconFunction		Statement
-  HiLink iconReserved		Label
-  HiLink iconKeyword		Operator
+HiLink iconUserLabel		Label
+HiLink iconCharacter		Character
+HiLink iconNumber			Number
+HiLink iconRadix			Number
+HiLink iconFloat			Float
+HiLink iconInclude		Include
+HiLink iconPreProc		PreProc
+HiLink iconDefine			Macro
+HiLink iconError			Error
+HiLink iconStatement		Statement
+HiLink iconPreCondit		PreCondit
+HiLink iconString			String
+HiLink iconCset			String
+HiLink iconComment		Comment
+HiLink iconSpecial		SpecialChar
+HiLink iconTodo			Todo
+HiLink iconStorageClass	StorageClass
+HiLink iconFunction		Statement
+HiLink iconReserved		Label
+HiLink iconKeyword		Operator
 
-  "HiLink iconIdentifier	Identifier
+"HiLink iconIdentifier	Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "icon"
 
diff --git a/runtime/syntax/idlang.vim b/runtime/syntax/idlang.vim
--- a/runtime/syntax/idlang.vim
+++ b/runtime/syntax/idlang.vim
@@ -4,11 +4,8 @@
 " Created by: Hermann Rochholz <Hermann.Rochholz AT gmx.de>
 
 " Remove any old syntax stuff hanging around
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -219,35 +216,27 @@ syn keyword idlangRoutine XSQ_TEST XSURF
 syn keyword idlangRoutine XVOLUME_WRITE_IMAGE XYOUTS ZOOM ZOOM_24
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_idlang_syn_inits")
-  if version < 508
-    let did_idlang_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-else
-    command -nargs=+ HiLink hi def link <args>
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink idlangConditional	Conditional
-  HiLink idlangRoutine	Type
-  HiLink idlangStatement	Statement
-  HiLink idlangContinueLine	Todo
-  HiLink idlangRealNumber	Float
-  HiLink idlangNumber	Number
-  HiLink idlangString	String
-  HiLink idlangOperator	Operator
-  HiLink idlangComment	Comment
-  HiLink idlangTodo	Todo
-  HiLink idlangPreCondit	Identifier
-  HiLink idlangDblCommaError	Error
-  HiLink idlangStop	Error
-  HiLink idlangStrucvar	PreProc
-  HiLink idlangSystem	Identifier
-  HiLink idlangKeyword	Special
+HiLink idlangConditional	Conditional
+HiLink idlangRoutine	Type
+HiLink idlangStatement	Statement
+HiLink idlangContinueLine	Todo
+HiLink idlangRealNumber	Float
+HiLink idlangNumber	Number
+HiLink idlangString	String
+HiLink idlangOperator	Operator
+HiLink idlangComment	Comment
+HiLink idlangTodo	Todo
+HiLink idlangPreCondit	Identifier
+HiLink idlangDblCommaError	Error
+HiLink idlangStop	Error
+HiLink idlangStrucvar	PreProc
+HiLink idlangSystem	Identifier
+HiLink idlangKeyword	Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "idlang"
 " vim: ts=18
diff --git a/runtime/syntax/inform.vim b/runtime/syntax/inform.vim
--- a/runtime/syntax/inform.vim
+++ b/runtime/syntax/inform.vim
@@ -4,10 +4,8 @@
 " URL:		http://www.gowarthomas.com/informvim
 " Last Change:  2006 April 20
 
-" Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -294,13 +292,8 @@ endif
 
 " Handling for different versions of VIM.
 
-if version >= 600
-  setlocal iskeyword+=$
-  command -nargs=+ SynDisplay syntax <args> display
-else
-  set iskeyword+=$
-  command -nargs=+ SynDisplay syntax <args>
-endif
+setlocal iskeyword+=$
+command -nargs=+ SynDisplay syntax <args> display
 
 " Grammar sections.
 
@@ -347,61 +340,54 @@ syn sync maxlines=500
 delcommand SynDisplay
 
 " The default highlighting.
-if version >= 508 || !exists("did_inform_syn_inits")
-  if version < 508
-    let did_inform_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink informDefine		Define
-  HiLink informType		Type
-  HiLink informInclude		Include
-  HiLink informPreCondit	PreCondit
-  HiLink informPreProc		PreProc
-  HiLink informGramPreProc	PreProc
-  HiLink informAsm		Special
-  if !exists("inform_suppress_obsolete")
-    HiLink informAsmObsolete		informError
-    HiLink informKeywordObsolete	informError
-  else
-    HiLink informAsmObsolete		Special
-    HiLink informKeywordObsolete	Keyword
-  endif
-  HiLink informPredicate	Operator
-  HiLink informSysFunc		Identifier
-  HiLink informSysConst		Identifier
-  HiLink informConditional	Conditional
-  HiLink informRepeat		Repeat
-  HiLink informStatement	Statement
-  HiLink informOperator		Operator
-  HiLink informKeyword		Keyword
-  HiLink informGrammar		Keyword
-  HiLink informDictString	String
-  HiLink informNumber		Number
-  HiLink informError		Error
-  HiLink informString		String
-  HiLink informComment		Comment
-  HiLink informAccent		Special
-  HiLink informStringUnicode	Special
-  HiLink informStringCode	Special
-  HiLink informTodo		Todo
-  if !exists("inform_highlight_simple")
-    HiLink informLibAttrib	Identifier
-    HiLink informLibProp	Identifier
-    HiLink informLibObj		Identifier
-    HiLink informLibRoutine	Identifier
-    HiLink informLibVariable	Identifier
-    HiLink informLibConst	Identifier
-    HiLink informLibAction	Identifier
-  endif
-  HiLink informBadDictString	informError
-  HiLink informBadAccent	informError
-  HiLink informBadStrUnicode	informError
+HiLink informDefine		Define
+HiLink informType		Type
+HiLink informInclude		Include
+HiLink informPreCondit	PreCondit
+HiLink informPreProc		PreProc
+HiLink informGramPreProc	PreProc
+HiLink informAsm		Special
+if !exists("inform_suppress_obsolete")
+HiLink informAsmObsolete		informError
+HiLink informKeywordObsolete	informError
+else
+HiLink informAsmObsolete		Special
+HiLink informKeywordObsolete	Keyword
+endif
+HiLink informPredicate	Operator
+HiLink informSysFunc		Identifier
+HiLink informSysConst		Identifier
+HiLink informConditional	Conditional
+HiLink informRepeat		Repeat
+HiLink informStatement	Statement
+HiLink informOperator		Operator
+HiLink informKeyword		Keyword
+HiLink informGrammar		Keyword
+HiLink informDictString	String
+HiLink informNumber		Number
+HiLink informError		Error
+HiLink informString		String
+HiLink informComment		Comment
+HiLink informAccent		Special
+HiLink informStringUnicode	Special
+HiLink informStringCode	Special
+HiLink informTodo		Todo
+if !exists("inform_highlight_simple")
+HiLink informLibAttrib	Identifier
+HiLink informLibProp	Identifier
+HiLink informLibObj		Identifier
+HiLink informLibRoutine	Identifier
+HiLink informLibVariable	Identifier
+HiLink informLibConst	Identifier
+HiLink informLibAction	Identifier
+endif
+HiLink informBadDictString	informError
+HiLink informBadAccent	informError
+HiLink informBadStrUnicode	informError
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "inform"
 
diff --git a/runtime/syntax/inittab.vim b/runtime/syntax/inittab.vim
--- a/runtime/syntax/inittab.vim
+++ b/runtime/syntax/inittab.vim
@@ -6,12 +6,9 @@
 " URL: http://physics.muni.cz/~yeti/download/syntax/inittab.vim
 
 " Setup
-if version >= 600
-  if exists("b:current_syntax")
-    finish
-  endif
-else
-  syntax clear
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+  finish
 endif
 
 syn case match
@@ -45,31 +42,24 @@ syn match inittabProcessPlus "+" contain
 syn region inittabProcess start="/" end="$" transparent oneline contained contains=@inittabSh,inittabComment
 
 " Define the default highlighting
-if version >= 508 || !exists("did_inittab_syntax_inits")
-  if version < 508
-    let did_inittab_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
+
+HiLink inittabComment Comment
+HiLink inittabFixme Todo
+HiLink inittabActionName Type
+HiLink inittabError Error
+HiLink inittabId Identifier
+HiLink inittabRunLevels Special
 
-  HiLink inittabComment Comment
-  HiLink inittabFixme Todo
-  HiLink inittabActionName Type
-  HiLink inittabError Error
-  HiLink inittabId Identifier
-  HiLink inittabRunLevels Special
+HiLink inittabColonProcess inittabColon
+HiLink inittabColonAction inittabColon
+HiLink inittabColonRunLevels inittabColon
+HiLink inittabColon PreProc
 
-  HiLink inittabColonProcess inittabColon
-  HiLink inittabColonAction inittabColon
-  HiLink inittabColonRunLevels inittabColon
-  HiLink inittabColon PreProc
+HiLink inittabShString String
+HiLink inittabShOption Special
+HiLink inittabShCommand Statement
 
-  HiLink inittabShString String
-  HiLink inittabShOption Special
-  HiLink inittabShCommand Statement
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "inittab"
diff --git a/runtime/syntax/ipfilter.vim b/runtime/syntax/ipfilter.vim
--- a/runtime/syntax/ipfilter.vim
+++ b/runtime/syntax/ipfilter.vim
@@ -9,11 +9,8 @@
 " not correctly identified.
 " Please send comments to hendrik@scholz.net
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/ishd.vim b/runtime/syntax/ishd.vim
--- a/runtime/syntax/ishd.vim
+++ b/runtime/syntax/ishd.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Robert M. Cortopassi <cortopar@mindspring.com>
 " Last Change:	2001 May 09
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -387,35 +384,27 @@ syn cluster	ishdPreProcGroup	contains=is
 syn region	ishdDefine		start="^\s*#\s*\(define\|undef\)\>" end="$" contains=ALLBUT,@ishdPreProcGroup
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_is_syntax_inits")
-  if version < 508
-    let did_is_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink ishdNumber	    Number
-  HiLink ishdError	    Error
-  HiLink ishdStatement	    Statement
-  HiLink ishdString	    String
-  HiLink ishdComment	    Comment
-  HiLink ishdTodo	    Todo
-  HiLink ishdFunction	    Identifier
-  HiLink ishdConstant	    PreProc
-  HiLink ishdType	    Type
-  HiLink ishdInclude	    Include
-  HiLink ishdDefine	    Macro
-  HiLink ishdIncluded	    String
-  HiLink ishdPreCondit	    PreCondit
-  HiLink ishdHashIf0Skip   ishdHashIf0
-  HiLink ishdHashIf0End    ishdHashIf0
-  HiLink ishdHashIf0	    Comment
+HiLink ishdNumber	    Number
+HiLink ishdError	    Error
+HiLink ishdStatement	    Statement
+HiLink ishdString	    String
+HiLink ishdComment	    Comment
+HiLink ishdTodo	    Todo
+HiLink ishdFunction	    Identifier
+HiLink ishdConstant	    PreProc
+HiLink ishdType	    Type
+HiLink ishdInclude	    Include
+HiLink ishdDefine	    Macro
+HiLink ishdIncluded	    String
+HiLink ishdPreCondit	    PreCondit
+HiLink ishdHashIf0Skip   ishdHashIf0
+HiLink ishdHashIf0End    ishdHashIf0
+HiLink ishdHashIf0	    Comment
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "ishd"
 
diff --git a/runtime/syntax/iss.vim b/runtime/syntax/iss.vim
--- a/runtime/syntax/iss.vim
+++ b/runtime/syntax/iss.vim
@@ -9,11 +9,8 @@
 "  - Pascal scripting syntax is not recognized.
 "  - Embedded double quotes confuse string matches. e.g. "asfd""asfa"
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -105,44 +102,36 @@ syn keyword issTasksFlags checkedonce do
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_iss_syntax_inits")
-  if version < 508
-    let did_iss_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+" The default methods for highlighting.  Can be overridden later
+HiLink issSection	Special
+HiLink issComment	Comment
+HiLink issDirective	Type
+HiLink issParam	Type
+HiLink issFolder	Special
+HiLink issString	String
+HiLink issURL	Include
+HiLink issPreProc	PreProc 
 
-   " The default methods for highlighting.  Can be overridden later
-   HiLink issSection	Special
-   HiLink issComment	Comment
-   HiLink issDirective	Type
-   HiLink issParam	Type
-   HiLink issFolder	Special
-   HiLink issString	String
-   HiLink issURL	Include
-   HiLink issPreProc	PreProc 
+HiLink issDirsFlags		Keyword
+HiLink issFilesCopyMode	Keyword
+HiLink issFilesAttribs	Keyword
+HiLink issFilesPermissions	Keyword
+HiLink issFilesFlags		Keyword
+HiLink issIconsFlags		Keyword
+HiLink issINIFlags		Keyword
+HiLink issRegRootKey		Keyword
+HiLink issRegValueType	Keyword
+HiLink issRegFlags		Keyword
+HiLink issRunFlags		Keyword
+HiLink issTypesFlags		Keyword
+HiLink issComponentsFlags	Keyword
+HiLink issInstallDeleteType	Keyword
+HiLink issTasksFlags		Keyword
 
-   HiLink issDirsFlags		Keyword
-   HiLink issFilesCopyMode	Keyword
-   HiLink issFilesAttribs	Keyword
-   HiLink issFilesPermissions	Keyword
-   HiLink issFilesFlags		Keyword
-   HiLink issIconsFlags		Keyword
-   HiLink issINIFlags		Keyword
-   HiLink issRegRootKey		Keyword
-   HiLink issRegValueType	Keyword
-   HiLink issRegFlags		Keyword
-   HiLink issRunFlags		Keyword
-   HiLink issTypesFlags		Keyword
-   HiLink issComponentsFlags	Keyword
-   HiLink issInstallDeleteType	Keyword
-   HiLink issTasksFlags		Keyword
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "iss"
 
diff --git a/runtime/syntax/ist.vim b/runtime/syntax/ist.vim
--- a/runtime/syntax/ist.vim
+++ b/runtime/syntax/ist.vim
@@ -3,22 +3,15 @@
 " Maintainer:	Peter Meszaros <pmeszaros@effice.hu>
 " Last Change:	2012 Jan 08 by Thilo Six
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 let s:cpo_save = &cpo
 set cpo&vim
 
-if version >= 600
-  setlocal iskeyword=$,@,48-57,_
-else
-  set iskeyword=$,@,48-57,_
-endif
+setlocal iskeyword=$,@,48-57,_
 
 syn case ignore
 syn keyword IstInpSpec  actual  arg_close arg_open encap       escape
@@ -45,28 +38,20 @@ syn match   IstSpecial	   "\\\\\|{\|}\|#
 syn match   IstTodo	   "DEBUG\|TODO"	 contained
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_dummy_syn_inits")
-  if version < 508
-    let did_dummy_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink IstInpSpec	Type
-  HiLink IstOutSpec	Identifier
-  HiLink IstString	String
-  HiLink IstNumber	Number
-  HiLink IstComment	Comment
-  HiLink IstTodo	Todo
-  HiLink IstSpecial	Special
-  HiLink IstDoubleQuote	Label
-  HiLink IstCharacter	Label
+HiLink IstInpSpec	Type
+HiLink IstOutSpec	Identifier
+HiLink IstString	String
+HiLink IstNumber	Number
+HiLink IstComment	Comment
+HiLink IstTodo	Todo
+HiLink IstSpecial	Special
+HiLink IstDoubleQuote	Label
+HiLink IstCharacter	Label
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "ist"
 
diff --git a/runtime/syntax/jal.vim b/runtime/syntax/jal.vim
--- a/runtime/syntax/jal.vim
+++ b/runtime/syntax/jal.vim
@@ -9,11 +9,8 @@
 "
 " TODO test.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -171,77 +168,69 @@ endif
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_jal_syn_inits")
-if version < 508
-  let did_jal_syn_inits = 1
-  command -nargs=+ HiLink hi link <args>
-else
-  command -nargs=+ HiLink hi def link <args>
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink jalAcces		jalStatement
-  HiLink jalBoolean		Boolean
-  HiLink jalBit			Boolean
-  HiLink jalComment		Comment
-  HiLink jalConditional		Conditional
-  HiLink jalConstant		Constant
-  HiLink jalDelimiter		Identifier
-  HiLink jalDirective		PreProc
-  HiLink jalException		Exception
-  HiLink jalFloat		Float
-  HiLink jalFunction		Function
-  HiLink jalPsudoVarsKey	Function
-  HiLink jalLabel		Label
-  HiLink jalMatrixDelimiter	Identifier
-  HiLink jalModifier		Type
-  HiLink jalNumber		Number
-  HiLink jalBinNumber		Number
-  HiLink jalHexNumber		Number
-  HiLink jalOperator		Operator
-  HiLink jalPredefined		Constant
-  HiLink jalPreProc		PreProc
-  HiLink jalRepeat		Repeat
-  HiLink jalStatement		Statement
-  HiLink jalString		String
-  HiLink jalStringEscape	Special
-  HiLink jalStringEscapeGPC	Special
-  HiLink jalStringError		Error
-  HiLink jalStruct		jalStatement
-  HiLink jalSymbolOperator	jalOperator
-  HiLink jalTodo		Todo
-  HiLink jalType		Type
-  HiLink jalUnclassified	Statement
-  HiLink jalAsm			Assembler
-  HiLink jalError		Error
-  HiLink jalAsmKey		Statement
-  HiLink jalPIC			Statement
+HiLink jalAcces		jalStatement
+HiLink jalBoolean		Boolean
+HiLink jalBit			Boolean
+HiLink jalComment		Comment
+HiLink jalConditional		Conditional
+HiLink jalConstant		Constant
+HiLink jalDelimiter		Identifier
+HiLink jalDirective		PreProc
+HiLink jalException		Exception
+HiLink jalFloat		Float
+HiLink jalFunction		Function
+HiLink jalPsudoVarsKey	Function
+HiLink jalLabel		Label
+HiLink jalMatrixDelimiter	Identifier
+HiLink jalModifier		Type
+HiLink jalNumber		Number
+HiLink jalBinNumber		Number
+HiLink jalHexNumber		Number
+HiLink jalOperator		Operator
+HiLink jalPredefined		Constant
+HiLink jalPreProc		PreProc
+HiLink jalRepeat		Repeat
+HiLink jalStatement		Statement
+HiLink jalString		String
+HiLink jalStringEscape	Special
+HiLink jalStringEscapeGPC	Special
+HiLink jalStringError		Error
+HiLink jalStruct		jalStatement
+HiLink jalSymbolOperator	jalOperator
+HiLink jalTodo		Todo
+HiLink jalType		Type
+HiLink jalUnclassified	Statement
+HiLink jalAsm			Assembler
+HiLink jalError		Error
+HiLink jalAsmKey		Statement
+HiLink jalPIC			Statement
 
-  HiLink jalShowTab		Error
+HiLink jalShowTab		Error
 
-  HiLink picTodo		Todo
-  HiLink picComment		Comment
-  HiLink picDirective		Statement
-  HiLink picLabel		Label
-  HiLink picString		String
+HiLink picTodo		Todo
+HiLink picComment		Comment
+HiLink picDirective		Statement
+HiLink picLabel		Label
+HiLink picString		String
 
-  HiLink picOpcode		Keyword
-  HiLink picRegister		Structure
-  HiLink picRegisterPart	Special
-  HiLink picPinDir		SPecial
-  HiLink picPortDir		SPecial
+HiLink picOpcode		Keyword
+HiLink picRegister		Structure
+HiLink picRegisterPart	Special
+HiLink picPinDir		SPecial
+HiLink picPortDir		SPecial
 
-  HiLink picASCII		String
-  HiLink picBinary		Number
-  HiLink picDecimal		Number
-  HiLink picHexadecimal		Number
-  HiLink picOctal		Number
+HiLink picASCII		String
+HiLink picBinary		Number
+HiLink picDecimal		Number
+HiLink picHexadecimal		Number
+HiLink picOctal		Number
 
-  HiLink picIdentifier		Identifier
+HiLink picIdentifier		Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "jal"
diff --git a/runtime/syntax/jam.vim b/runtime/syntax/jam.vim
--- a/runtime/syntax/jam.vim
+++ b/runtime/syntax/jam.vim
@@ -3,22 +3,15 @@
 " Maintainer:	Ralf Lemke (ralflemk@t-online.de)
 " Last change:	2012 Jan 08 by Thilo Six
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 let s:cpo_save = &cpo
 set cpo&vim
 
-if version >= 600
-  setlocal iskeyword=@,48-57,_,-
-else
-  set iskeyword=@,48-57,_,-
-endif
+setlocal iskeyword=@,48-57,_,-
 
 " A bunch of useful jam keywords
 syn keyword	jamStatement	break call dbms flush global include msg parms proc public receive return send unload vars
@@ -167,88 +160,80 @@ syntax match	jamCommentError	"\*/"
 syntax match    jamOperator3Error   "*/"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_jam_syn_inits")
-  if version < 508
-    let did_jam_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-    HiLink jamCommentL		jamComment
-    HiLink jamCommentL2		jamComment
-    HiLink jamOperator3Error	jamError
-    HiLink jamConditional	Conditional
-    HiLink jamRepeat		Repeat
-    HiLink jamCharacter		Character
-    HiLink jamSpecialCharacter	jamSpecial
-    HiLink jamNumber		Number
-    HiLink jamParenError	jamError
-    HiLink jamErrInParen	jamError
-    HiLink jamErrInBracket	jamError
-    HiLink jamCommentError	jamError
-    HiLink jamSpaceError	jamError
-    HiLink jamSpecialError	jamError
-    HiLink jamOperator1		jamOperator
-    HiLink jamOperator2		jamOperator
-    HiLink jamOperator3		jamOperator
-    HiLink jamOperator4		jamOperator
-    HiLink jamOperator5		jamOperator
-    HiLink jamOperator6		jamOperator
-    HiLink jamOperator7		jamOperator
-    HiLink jamOperator8		jamOperator
-    HiLink jamOperator9		jamOperator
-    HiLink jamOperator10	jamOperator
-    HiLink jamOperator11	jamOperator
-    HiLink jamOperator12	jamOperator
-    HiLink jamOperator13	jamOperator
-    HiLink jamOperator14	jamOperator
-    HiLink jamError		Error
-    HiLink jamStatement		Statement
-    HiLink jamPreCondit		PreCondit
-    HiLink jamCommentError	jamError
-    HiLink jamCommentString	jamString
-    HiLink jamComment2String	jamString
-    HiLink jamCommentSkip	jamComment
-    HiLink jamString		String
-    HiLink jamComment		Comment
-    HiLink jamSpecial		SpecialChar
-    HiLink jamTodo		Todo
-    HiLink jamCppSkip		jamCppOut
-    HiLink jamCppOut2		jamCppOut
-    HiLink jamCppOut		Comment
-    HiLink jamDBState1		Identifier
-    HiLink jamDBState2		Identifier
-    HiLink jamSQLState1		jamSQL
-    HiLink jamSQLState2		jamSQL
-    HiLink jamLibFunc1		jamLibFunc
-    HiLink jamLibFunc2		jamLibFunc
-    HiLink jamLibFunc3		jamLibFunc
-    HiLink jamLibFunc4		jamLibFunc
-    HiLink jamLibFunc5		jamLibFunc
-    HiLink jamLibFunc6		jamLibFunc
-    HiLink jamLibFunc7		jamLibFunc
-    HiLink jamLibFunc8		jamLibFunc
-    HiLink jamLibFunc9		jamLibFunc
-    HiLink jamVariable1		jamVariablen
-    HiLink jamVariable2		jamVariablen
-    HiLink jamVariable3		jamVariablen
-    HiLink jamVariable4		jamVariablen
-    HiLink jamVariable5		jamVariablen
-    HiLink jamVariable6		jamVariablen
-    HiLink jamVariable7		jamVariablen
-    HiLink jamVariable8		jamVariablen
-    HiLink jamVariable9		jamVariablen
-    HiLink jamVariable10	jamVariablen
-    HiLink jamVariablen		Constant
-    HiLink jamSQL		Type
-    HiLink jamLibFunc		PreProc
-    HiLink jamOperator		Special
+HiLink jamCommentL		jamComment
+HiLink jamCommentL2		jamComment
+HiLink jamOperator3Error	jamError
+HiLink jamConditional	Conditional
+HiLink jamRepeat		Repeat
+HiLink jamCharacter		Character
+HiLink jamSpecialCharacter	jamSpecial
+HiLink jamNumber		Number
+HiLink jamParenError	jamError
+HiLink jamErrInParen	jamError
+HiLink jamErrInBracket	jamError
+HiLink jamCommentError	jamError
+HiLink jamSpaceError	jamError
+HiLink jamSpecialError	jamError
+HiLink jamOperator1		jamOperator
+HiLink jamOperator2		jamOperator
+HiLink jamOperator3		jamOperator
+HiLink jamOperator4		jamOperator
+HiLink jamOperator5		jamOperator
+HiLink jamOperator6		jamOperator
+HiLink jamOperator7		jamOperator
+HiLink jamOperator8		jamOperator
+HiLink jamOperator9		jamOperator
+HiLink jamOperator10	jamOperator
+HiLink jamOperator11	jamOperator
+HiLink jamOperator12	jamOperator
+HiLink jamOperator13	jamOperator
+HiLink jamOperator14	jamOperator
+HiLink jamError		Error
+HiLink jamStatement		Statement
+HiLink jamPreCondit		PreCondit
+HiLink jamCommentError	jamError
+HiLink jamCommentString	jamString
+HiLink jamComment2String	jamString
+HiLink jamCommentSkip	jamComment
+HiLink jamString		String
+HiLink jamComment		Comment
+HiLink jamSpecial		SpecialChar
+HiLink jamTodo		Todo
+HiLink jamCppSkip		jamCppOut
+HiLink jamCppOut2		jamCppOut
+HiLink jamCppOut		Comment
+HiLink jamDBState1		Identifier
+HiLink jamDBState2		Identifier
+HiLink jamSQLState1		jamSQL
+HiLink jamSQLState2		jamSQL
+HiLink jamLibFunc1		jamLibFunc
+HiLink jamLibFunc2		jamLibFunc
+HiLink jamLibFunc3		jamLibFunc
+HiLink jamLibFunc4		jamLibFunc
+HiLink jamLibFunc5		jamLibFunc
+HiLink jamLibFunc6		jamLibFunc
+HiLink jamLibFunc7		jamLibFunc
+HiLink jamLibFunc8		jamLibFunc
+HiLink jamLibFunc9		jamLibFunc
+HiLink jamVariable1		jamVariablen
+HiLink jamVariable2		jamVariablen
+HiLink jamVariable3		jamVariablen
+HiLink jamVariable4		jamVariablen
+HiLink jamVariable5		jamVariablen
+HiLink jamVariable6		jamVariablen
+HiLink jamVariable7		jamVariablen
+HiLink jamVariable8		jamVariablen
+HiLink jamVariable9		jamVariablen
+HiLink jamVariable10	jamVariablen
+HiLink jamVariablen		Constant
+HiLink jamSQL		Type
+HiLink jamLibFunc		PreProc
+HiLink jamOperator		Special
 
-    delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "jam"
 
diff --git a/runtime/syntax/jargon.vim b/runtime/syntax/jargon.vim
--- a/runtime/syntax/jargon.vim
+++ b/runtime/syntax/jargon.vim
@@ -3,11 +3,8 @@
 " Maintainer:	<rms@poczta.onet.pl>
 " Last Change:	2001 May 26
 "
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -17,20 +14,12 @@ syn match jargonUrl	 +\(http\|ftp\)://[^
 syn match jargonMark	/{[^}]*}/
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_jargon_syntax_inits")
-	if version < 508
-		let did_jargon_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
-	HiLink jargonChaptTitle	Title
-	HiLink jargonEmailAddr	 Comment
-	HiLink jargonUrl	 Comment
-	HiLink jargonMark	Label
-	delcommand HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink jargonChaptTitle	Title
+HiLink jargonEmailAddr	 Comment
+HiLink jargonUrl	 Comment
+HiLink jargonMark	Label
+delcommand HiLink
 
 let b:current_syntax = "jargon"
diff --git a/runtime/syntax/java.vim b/runtime/syntax/java.vim
--- a/runtime/syntax/java.vim
+++ b/runtime/syntax/java.vim
@@ -6,11 +6,9 @@
 
 " Please check :help java.vim for comments on some of the options available.
 
-" Quit when a syntax file was already loaded
+" quit when a syntax file was already loaded
 if !exists("main_syntax")
-  if version < 600
-    syntax clear
-  elseif exists("b:current_syntax")
+  if exists("b:current_syntax")
     finish
   endif
   " we define it here so that included files can test for it
@@ -22,11 +20,7 @@ let s:cpo_save = &cpo
 set cpo&vim
 
 " don't use standard HiLink, it will not work with included syntax files
-if version < 508
-  command! -nargs=+ JavaHiLink hi link <args>
-else
-  command! -nargs=+ JavaHiLink hi def link <args>
-endif
+command! -nargs=+ JavaHiLink hi def link <args>
 
 " some characters that cannot be in a java program (outside a string)
 syn match javaError "[\\@`]"
@@ -242,23 +236,21 @@ if exists("java_highlight_debug")
 
   syn cluster javaTop add=javaDebug
 
-  if version >= 508 || !exists("did_c_syn_inits")
-    JavaHiLink javaDebug		 Debug
-    JavaHiLink javaDebugString		 DebugString
-    JavaHiLink javaDebugStringError	 javaError
-    JavaHiLink javaDebugType		 DebugType
-    JavaHiLink javaDebugBoolean		 DebugBoolean
-    JavaHiLink javaDebugNumber		 Debug
-    JavaHiLink javaDebugSpecial		 DebugSpecial
-    JavaHiLink javaDebugSpecialCharacter DebugSpecial
-    JavaHiLink javaDebugCharacter	 DebugString
-    JavaHiLink javaDebugParen		 Debug
+  JavaHiLink javaDebug		 Debug
+  JavaHiLink javaDebugString		 DebugString
+  JavaHiLink javaDebugStringError	 javaError
+  JavaHiLink javaDebugType		 DebugType
+  JavaHiLink javaDebugBoolean		 DebugBoolean
+  JavaHiLink javaDebugNumber		 Debug
+  JavaHiLink javaDebugSpecial		 DebugSpecial
+  JavaHiLink javaDebugSpecialCharacter DebugSpecial
+  JavaHiLink javaDebugCharacter	 DebugString
+  JavaHiLink javaDebugParen		 Debug
 
-    JavaHiLink DebugString		 String
-    JavaHiLink DebugSpecial		 Special
-    JavaHiLink DebugBoolean		 Boolean
-    JavaHiLink DebugType		 Type
-  endif
+  JavaHiLink DebugString		 String
+  JavaHiLink DebugSpecial		 Special
+  JavaHiLink DebugBoolean		 Boolean
+  JavaHiLink DebugType		 Type
 endif
 
 if exists("java_mark_braces_in_parens_as_errors")
@@ -291,59 +283,54 @@ endif
 exec "syn sync ccomment javaComment minlines=" . java_minlines
 
 " The default highlighting.
-if version >= 508 || !exists("did_java_syn_inits")
-  if version < 508
-    let did_java_syn_inits = 1
-  endif
-  JavaHiLink javaLambdaDef		Function
-  JavaHiLink javaFuncDef		Function
-  JavaHiLink javaVarArg			Function
-  JavaHiLink javaBraces			Function
-  JavaHiLink javaBranch			Conditional
-  JavaHiLink javaUserLabelRef		javaUserLabel
-  JavaHiLink javaLabel			Label
-  JavaHiLink javaUserLabel		Label
-  JavaHiLink javaConditional		Conditional
-  JavaHiLink javaRepeat			Repeat
-  JavaHiLink javaExceptions		Exception
-  JavaHiLink javaAssert			Statement
-  JavaHiLink javaStorageClass		StorageClass
-  JavaHiLink javaMethodDecl		javaStorageClass
-  JavaHiLink javaClassDecl		javaStorageClass
-  JavaHiLink javaScopeDecl		javaStorageClass
-  JavaHiLink javaBoolean		Boolean
-  JavaHiLink javaSpecial		Special
-  JavaHiLink javaSpecialError		Error
-  JavaHiLink javaSpecialCharError	Error
-  JavaHiLink javaString			String
-  JavaHiLink javaCharacter		Character
-  JavaHiLink javaSpecialChar		SpecialChar
-  JavaHiLink javaNumber			Number
-  JavaHiLink javaError			Error
-  JavaHiLink javaStringError		Error
-  JavaHiLink javaStatement		Statement
-  JavaHiLink javaOperator		Operator
-  JavaHiLink javaComment		Comment
-  JavaHiLink javaDocComment		Comment
-  JavaHiLink javaLineComment		Comment
-  JavaHiLink javaConstant		Constant
-  JavaHiLink javaTypedef		Typedef
-  JavaHiLink javaTodo			Todo
-  JavaHiLink javaAnnotation		PreProc
+JavaHiLink javaLambdaDef		Function
+JavaHiLink javaFuncDef		Function
+JavaHiLink javaVarArg			Function
+JavaHiLink javaBraces			Function
+JavaHiLink javaBranch			Conditional
+JavaHiLink javaUserLabelRef		javaUserLabel
+JavaHiLink javaLabel			Label
+JavaHiLink javaUserLabel		Label
+JavaHiLink javaConditional		Conditional
+JavaHiLink javaRepeat			Repeat
+JavaHiLink javaExceptions		Exception
+JavaHiLink javaAssert			Statement
+JavaHiLink javaStorageClass		StorageClass
+JavaHiLink javaMethodDecl		javaStorageClass
+JavaHiLink javaClassDecl		javaStorageClass
+JavaHiLink javaScopeDecl		javaStorageClass
+JavaHiLink javaBoolean		Boolean
+JavaHiLink javaSpecial		Special
+JavaHiLink javaSpecialError		Error
+JavaHiLink javaSpecialCharError	Error
+JavaHiLink javaString			String
+JavaHiLink javaCharacter		Character
+JavaHiLink javaSpecialChar		SpecialChar
+JavaHiLink javaNumber			Number
+JavaHiLink javaError			Error
+JavaHiLink javaStringError		Error
+JavaHiLink javaStatement		Statement
+JavaHiLink javaOperator		Operator
+JavaHiLink javaComment		Comment
+JavaHiLink javaDocComment		Comment
+JavaHiLink javaLineComment		Comment
+JavaHiLink javaConstant		Constant
+JavaHiLink javaTypedef		Typedef
+JavaHiLink javaTodo			Todo
+JavaHiLink javaAnnotation		PreProc
 
-  JavaHiLink javaCommentTitle		SpecialComment
-  JavaHiLink javaDocTags		Special
-  JavaHiLink javaDocParam		Function
-  JavaHiLink javaDocSeeTagParam		Function
-  JavaHiLink javaCommentStar		javaComment
+JavaHiLink javaCommentTitle		SpecialComment
+JavaHiLink javaDocTags		Special
+JavaHiLink javaDocParam		Function
+JavaHiLink javaDocSeeTagParam		Function
+JavaHiLink javaCommentStar		javaComment
 
-  JavaHiLink javaType			Type
-  JavaHiLink javaExternal		Include
+JavaHiLink javaType			Type
+JavaHiLink javaExternal		Include
 
-  JavaHiLink htmlComment		Special
-  JavaHiLink htmlCommentPart		Special
-  JavaHiLink javaSpaceError		Error
-endif
+JavaHiLink htmlComment		Special
+JavaHiLink htmlCommentPart		Special
+JavaHiLink javaSpaceError		Error
 
 delcommand JavaHiLink
 
diff --git a/runtime/syntax/javacc.vim b/runtime/syntax/javacc.vim
--- a/runtime/syntax/javacc.vim
+++ b/runtime/syntax/javacc.vim
@@ -7,11 +7,8 @@
 " Uses java.vim, and adds a few special things for JavaCC Parser files.
 " Those files usually have the extension  *.jj
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -19,11 +16,7 @@ let s:cpo_save = &cpo
 set cpo&vim
 
 " source the java.vim file
-if version < 600
-  source <sfile>:p:h/java.vim
-else
-  runtime! syntax/java.vim
-endif
+runtime! syntax/java.vim
 unlet b:current_syntax
 
 "remove catching errors caused by wrong parenthesis (does not work in javacc
@@ -58,22 +51,14 @@ syn keyword javaccActionToken TOKEN SKIP
 syn keyword javaccError DEBUG IGNORE_IN_BNF
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_css_syn_inits")
-  if version < 508
-    let did_css_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink javaccSpecToken Statement
-  HiLink javaccActionToken Type
-  HiLink javaccPackages javaScopeDecl
-  HiLink javaccToken String
-  HiLink javaccError Error
-  delcommand HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink javaccSpecToken Statement
+HiLink javaccActionToken Type
+HiLink javaccPackages javaScopeDecl
+HiLink javaccToken String
+HiLink javaccError Error
+delcommand HiLink
 
 let b:current_syntax = "javacc"
 let &cpo = s:cpo_save
diff --git a/runtime/syntax/javascript.vim b/runtime/syntax/javascript.vim
--- a/runtime/syntax/javascript.vim
+++ b/runtime/syntax/javascript.vim
@@ -10,15 +10,12 @@
 " Last Change:	2012 Oct 05
 " 		2013 Jun 12: adjusted javaScriptRegexpString (Kevin Locke)
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
 " tuning parameters:
 " unlet javaScript_fold
 
 if !exists("main_syntax")
-  if version < 600
-    syntax clear
-  elseif exists("b:current_syntax")
+  " quit when a syntax file was already loaded
+  if exists("b:current_syntax")
     finish
   endif
   let main_syntax = 'javascript'
@@ -29,11 +26,6 @@ endif
 let s:cpo_save = &cpo
 set cpo&vim
 
-" Drop fold if it set but vim doesn't support it.
-if version < 600 && exists("javaScript_fold")
-  unlet javaScript_fold
-endif
-
 
 syn keyword javaScriptCommentTodo      TODO FIXME XXX TBD contained
 syn match   javaScriptLineComment      "\/\/.*" contains=@Spell,javaScriptCommentTodo
@@ -87,51 +79,43 @@ if main_syntax == "javascript"
 endif
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_javascript_syn_inits")
-  if version < 508
-    let did_javascript_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink javaScriptComment		Comment
-  HiLink javaScriptLineComment		Comment
-  HiLink javaScriptCommentTodo		Todo
-  HiLink javaScriptSpecial		Special
-  HiLink javaScriptStringS		String
-  HiLink javaScriptStringD		String
-  HiLink javaScriptCharacter		Character
-  HiLink javaScriptSpecialCharacter	javaScriptSpecial
-  HiLink javaScriptNumber		javaScriptValue
-  HiLink javaScriptConditional		Conditional
-  HiLink javaScriptRepeat		Repeat
-  HiLink javaScriptBranch		Conditional
-  HiLink javaScriptOperator		Operator
-  HiLink javaScriptType			Type
-  HiLink javaScriptStatement		Statement
-  HiLink javaScriptFunction		Function
-  HiLink javaScriptBraces		Function
-  HiLink javaScriptError		Error
-  HiLink javaScrParenError		javaScriptError
-  HiLink javaScriptNull			Keyword
-  HiLink javaScriptBoolean		Boolean
-  HiLink javaScriptRegexpString		String
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink javaScriptComment		Comment
+HiLink javaScriptLineComment		Comment
+HiLink javaScriptCommentTodo		Todo
+HiLink javaScriptSpecial		Special
+HiLink javaScriptStringS		String
+HiLink javaScriptStringD		String
+HiLink javaScriptCharacter		Character
+HiLink javaScriptSpecialCharacter	javaScriptSpecial
+HiLink javaScriptNumber		javaScriptValue
+HiLink javaScriptConditional		Conditional
+HiLink javaScriptRepeat		Repeat
+HiLink javaScriptBranch		Conditional
+HiLink javaScriptOperator		Operator
+HiLink javaScriptType			Type
+HiLink javaScriptStatement		Statement
+HiLink javaScriptFunction		Function
+HiLink javaScriptBraces		Function
+HiLink javaScriptError		Error
+HiLink javaScrParenError		javaScriptError
+HiLink javaScriptNull			Keyword
+HiLink javaScriptBoolean		Boolean
+HiLink javaScriptRegexpString		String
 
-  HiLink javaScriptIdentifier		Identifier
-  HiLink javaScriptLabel		Label
-  HiLink javaScriptException		Exception
-  HiLink javaScriptMessage		Keyword
-  HiLink javaScriptGlobal		Keyword
-  HiLink javaScriptMember		Keyword
-  HiLink javaScriptDeprecated		Exception 
-  HiLink javaScriptReserved		Keyword
-  HiLink javaScriptDebug		Debug
-  HiLink javaScriptConstant		Label
+HiLink javaScriptIdentifier		Identifier
+HiLink javaScriptLabel		Label
+HiLink javaScriptException		Exception
+HiLink javaScriptMessage		Keyword
+HiLink javaScriptGlobal		Keyword
+HiLink javaScriptMember		Keyword
+HiLink javaScriptDeprecated		Exception 
+HiLink javaScriptReserved		Keyword
+HiLink javaScriptDebug		Debug
+HiLink javaScriptConstant		Label
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "javascript"
 if main_syntax == 'javascript'
diff --git a/runtime/syntax/jess.vim b/runtime/syntax/jess.vim
--- a/runtime/syntax/jess.vim
+++ b/runtime/syntax/jess.vim
@@ -4,19 +4,12 @@
 " Last change:	September 14, 2000
 " Based on lisp.vim by : Dr. Charles E. Campbell, Jr.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
-if version < 600
-  set iskeyword=42,43,45,47-58,60-62,64-90,97-122,_
-else
-  setlocal iskeyword=42,43,45,47-58,60-62,64-90,97-122,_
-endif
+setlocal iskeyword=42,43,45,47-58,60-62,64-90,97-122,_
 
 " Lists
 syn match	jessSymbol	![^()'`,"; \t]\+!	contained
@@ -125,36 +118,28 @@ syn match	jessComment	";.*$"
 syn sync lines=100
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_jess_syntax_inits")
-  if version < 508
-    let did_jess_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink jessAtomNmbr	jessNumber
-  HiLink jessAtomMark	jessMark
+HiLink jessAtomNmbr	jessNumber
+HiLink jessAtomMark	jessMark
 
-  HiLink jessAtom		Identifier
-  HiLink jessAtomBarSymbol	Special
-  HiLink jessBarSymbol	Special
-  HiLink jessComment	Comment
-  HiLink jessConcat	Statement
-  HiLink jessDeclaration	Statement
-  HiLink jessFunc		Statement
-  HiLink jessKey		Type
-  HiLink jessMark		Delimiter
-  HiLink jessNumber	Number
-  HiLink jessParenError	Error
-  HiLink jessSpecial	Type
-  HiLink jessString	String
-  HiLink jessVar		Identifier
+HiLink jessAtom		Identifier
+HiLink jessAtomBarSymbol	Special
+HiLink jessBarSymbol	Special
+HiLink jessComment	Comment
+HiLink jessConcat	Statement
+HiLink jessDeclaration	Statement
+HiLink jessFunc		Statement
+HiLink jessKey		Type
+HiLink jessMark		Delimiter
+HiLink jessNumber	Number
+HiLink jessParenError	Error
+HiLink jessSpecial	Type
+HiLink jessString	String
+HiLink jessVar		Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "jess"
 
diff --git a/runtime/syntax/jgraph.vim b/runtime/syntax/jgraph.vim
--- a/runtime/syntax/jgraph.vim
+++ b/runtime/syntax/jgraph.vim
@@ -5,11 +5,8 @@
 " this syntax file is not yet complete
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -36,23 +33,15 @@ syn match  jgraphNumber		 "\-\=\.\d\+\>"
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_jgraph_syn_inits")
-  if version < 508
-    let did_jgraph_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink jgraphComment	Comment
-  HiLink jgraphCmd	Identifier
-  HiLink jgraphType	Type
-  HiLink jgraphNumber	Number
+HiLink jgraphComment	Comment
+HiLink jgraphCmd	Identifier
+HiLink jgraphType	Type
+HiLink jgraphNumber	Number
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "jgraph"
diff --git a/runtime/syntax/jproperties.vim b/runtime/syntax/jproperties.vim
--- a/runtime/syntax/jproperties.vim
+++ b/runtime/syntax/jproperties.vim
@@ -43,11 +43,8 @@ endif
 
 " =============================================================================
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -120,28 +117,20 @@ syn match   jpropertiesComment		"^\s*[#!
 syn keyword jpropertiesTodo		TODO FIXME XXX contained
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_jproperties_syntax_inits")
-  if version < 508
-    let did_jproperties_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink jpropertiesComment	Comment
-	HiLink jpropertiesTodo		Todo
-	HiLink jpropertiesIdentifier	Identifier
-	HiLink jpropertiesString	String
-	HiLink jpropertiesExtendString	String
-	HiLink jpropertiesCharacter	Character
-	HiLink jpropertiesSpecial	Special
-	HiLink jpropertiesSpecialChar	SpecialChar
-	HiLink jpropertiesError	Error
+HiLink jpropertiesComment	Comment
+HiLink jpropertiesTodo		Todo
+HiLink jpropertiesIdentifier	Identifier
+HiLink jpropertiesString	String
+HiLink jpropertiesExtendString	String
+HiLink jpropertiesCharacter	Character
+HiLink jpropertiesSpecial	Special
+HiLink jpropertiesSpecialChar	SpecialChar
+HiLink jpropertiesError	Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "jproperties"
 
diff --git a/runtime/syntax/json.vim b/runtime/syntax/json.vim
--- a/runtime/syntax/json.vim
+++ b/runtime/syntax/json.vim
@@ -5,9 +5,8 @@
 " Version:      0.12
 
 if !exists("main_syntax")
-  if version < 600
-    syntax clear
-  elseif exists("b:current_syntax")
+  " quit when a syntax file was already loaded
+  if exists("b:current_syntax")
     finish
   endif
   let main_syntax = 'json'
@@ -93,39 +92,31 @@ syn region  jsonFold matchgroup=jsonBrac
 syn region  jsonFold matchgroup=jsonBraces start="\[" end=/]\(\_s\+\ze"\)\@!/ transparent fold
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_json_syn_inits")
-  if version < 508
-    let did_json_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink jsonPadding         Operator
-  HiLink jsonString          String
-  HiLink jsonTest          Label
-  HiLink jsonEscape          Special
-  HiLink jsonNumber          Number
-  HiLink jsonBraces          Delimiter
-  HiLink jsonNull            Function
-  HiLink jsonBoolean         Boolean
-  HiLink jsonKeyword         Label
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink jsonPadding         Operator
+HiLink jsonString          String
+HiLink jsonTest          Label
+HiLink jsonEscape          Special
+HiLink jsonNumber          Number
+HiLink jsonBraces          Delimiter
+HiLink jsonNull            Function
+HiLink jsonBoolean         Boolean
+HiLink jsonKeyword         Label
 
-	if (!exists("g:vim_json_warnings") || g:vim_json_warnings==1)
-	  HiLink jsonNumError        Error
-	  HiLink jsonCommentError    Error
-	  HiLink jsonSemicolonError  Error
-	  HiLink jsonTrailingCommaError     Error
-	  HiLink jsonMissingCommaError      Error
-	  HiLink jsonStringSQError        	Error
-	  HiLink jsonNoQuotesError        	Error
-	  HiLink jsonTripleQuotesError     	Error
-  endif
-  HiLink jsonQuote           Quote
-  HiLink jsonNoise           Noise
-  delcommand HiLink
+if (!exists("g:vim_json_warnings") || g:vim_json_warnings==1)
+HiLink jsonNumError        Error
+HiLink jsonCommentError    Error
+HiLink jsonSemicolonError  Error
+HiLink jsonTrailingCommaError     Error
+HiLink jsonMissingCommaError      Error
+HiLink jsonStringSQError        	Error
+HiLink jsonNoQuotesError        	Error
+HiLink jsonTripleQuotesError     	Error
 endif
+HiLink jsonQuote           Quote
+HiLink jsonNoise           Noise
+delcommand HiLink
 
 let b:current_syntax = "json"
 if main_syntax == 'json'
diff --git a/runtime/syntax/jsp.vim b/runtime/syntax/jsp.vim
--- a/runtime/syntax/jsp.vim
+++ b/runtime/syntax/jsp.vim
@@ -6,11 +6,8 @@
 " Credits : Patch by Darren Greaves (recognizes <jsp:...> tags)
 "	    Patch by Thomas Kimpton (recognizes jspExpr inside HTML tags)
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -19,11 +16,7 @@ if !exists("main_syntax")
 endif
 
 " Source HTML syntax
-if version < 600
-  source <sfile>:p:h/html.vim
-else
-  runtime! syntax/html.vim
-endif
+runtime! syntax/html.vim
 unlet b:current_syntax
 
 " Next syntax items are case-sensitive
@@ -52,29 +45,21 @@ syn clear htmlTag
 syn region htmlTag start=+<[^/%]+ end=+>+ contains=htmlTagN,htmlString,htmlArg,htmlValue,htmlTagError,htmlEvent,htmlCssDefinition,@htmlPreproc,@htmlArgCluster,jspExpr,javaScript
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_jsp_syn_inits")
-  if version < 508
-    let did_jsp_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  " java.vim has redefined htmlComment highlighting
-  HiLink htmlComment	 Comment
-  HiLink htmlCommentPart Comment
-  " Be consistent with html highlight settings
-  HiLink jspComment	 htmlComment
-  HiLink jspTag		 htmlTag
-  HiLink jspDirective	 jspTag
-  HiLink jspDirName	 htmlTagName
-  HiLink jspDirArg	 htmlArg
-  HiLink jspCommand	 jspTag
-  HiLink jspCommandName  htmlTagName
-  HiLink jspCommandArg	 htmlArg
-  delcommand HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+" java.vim has redefined htmlComment highlighting
+HiLink htmlComment	 Comment
+HiLink htmlCommentPart Comment
+" Be consistent with html highlight settings
+HiLink jspComment	 htmlComment
+HiLink jspTag		 htmlTag
+HiLink jspDirective	 jspTag
+HiLink jspDirName	 htmlTagName
+HiLink jspDirArg	 htmlArg
+HiLink jspCommand	 jspTag
+HiLink jspCommandName  htmlTagName
+HiLink jspCommandArg	 htmlArg
+delcommand HiLink
 
 if main_syntax == 'jsp'
   unlet main_syntax
diff --git a/runtime/syntax/kix.vim b/runtime/syntax/kix.vim
--- a/runtime/syntax/kix.vim
+++ b/runtime/syntax/kix.vim
@@ -19,10 +19,8 @@
 "	Work out how to error too many "(", i.e. (() should be an error.
 "	Similarly, "if" without "endif" and similar constructs should error.
 
-" Clear legacy syntax rules for version 5.x, exit if already processed for version 6+
-if version < 600
-	syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -130,52 +128,44 @@ syn match   kixExpression	"<\|>\|<=\|>=\
 
 
 " Default highlighting.
-" Version < 5.8 set default highlight if file not already processed.
-" Version >= 5.8 set default highlight only if it doesn't already have a value.
-if version > 508 || !exists("did_kix_syn_inits")
-	if version < 508
-		let did_kix_syn_inits=1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Set default highlight only if it doesn't already have a value.
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink kixDoubleString		String
-	HiLink kixSingleString		String
-	HiLink kixStatement		Statement
-	HiLink kixRepeat		Repeat
-	HiLink kixComment		Comment
-	HiLink kixBuiltin		Function
-	HiLink kixLocalVar		Special
-	HiLink kixMacro			Special
-	HiLink kixEnvVar		Special
-	HiLink kixLabel			Type
-	HiLink kixFunction		Function
-	HiLink kixInteger		Number
-	HiLink kixHex			Number
-	HiLink kixFloat			Number
-	HiLink kixOperator		Operator
-	HiLink kixExpression		Operator
+HiLink kixDoubleString		String
+HiLink kixSingleString		String
+HiLink kixStatement		Statement
+HiLink kixRepeat		Repeat
+HiLink kixComment		Comment
+HiLink kixBuiltin		Function
+HiLink kixLocalVar		Special
+HiLink kixMacro			Special
+HiLink kixEnvVar		Special
+HiLink kixLabel			Type
+HiLink kixFunction		Function
+HiLink kixInteger		Number
+HiLink kixHex			Number
+HiLink kixFloat			Number
+HiLink kixOperator		Operator
+HiLink kixExpression		Operator
 
-	HiLink kixParenCloseError	Error
-	HiLink kixBrackCloseError	Error
-	HiLink kixStringError		Error
+HiLink kixParenCloseError	Error
+HiLink kixBrackCloseError	Error
+HiLink kixStringError		Error
 
-	HiLink kixWhileError		Error
-	HiLink kixWhileOK		Conditional
-	HiLink kixDoError		Error
-	HiLink kixDoOK			Conditional
-	HiLink kixIfError		Error
-	HiLink kixIfOK			Conditional
-	HiLink kixSelectError		Error
-	HiLink kixSelectOK		Conditional
-	HiLink kixForNextError		Error
-	HiLink kixForNextOK		Conditional
-	HiLink kixForEachError		Error
-	HiLink kixForEachOK		Conditional
+HiLink kixWhileError		Error
+HiLink kixWhileOK		Conditional
+HiLink kixDoError		Error
+HiLink kixDoOK			Conditional
+HiLink kixIfError		Error
+HiLink kixIfOK			Conditional
+HiLink kixSelectError		Error
+HiLink kixSelectOK		Conditional
+HiLink kixForNextError		Error
+HiLink kixForNextOK		Conditional
+HiLink kixForEachError		Error
+HiLink kixForEachOK		Conditional
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "kix"
 
diff --git a/runtime/syntax/kscript.vim b/runtime/syntax/kscript.vim
--- a/runtime/syntax/kscript.vim
+++ b/runtime/syntax/kscript.vim
@@ -4,11 +4,8 @@
 " URL:		http://aquila.rezel.enst.fr/thomas/vim/kscript.vim
 " CVS:		$Id: kscript.vim,v 1.1 2004/06/13 17:40:02 vimboss Exp $
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -37,33 +34,25 @@ syn region	kscriptString		start=+"""+  e
 syn region	kscriptString		start=+'''+  end=+'''+
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_kscript_syntax_inits")
-  if version < 508
-    let did_kscript_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink kscriptConditional		Conditional
-  HiLink kscriptRepeat			Repeat
-  HiLink kscriptExceptions		Statement
-  HiLink kscriptFunction		Function
-  HiLink kscriptConst			Constant
-  HiLink kscriptStatement		Statement
-  HiLink kscriptLabel			Label
-  HiLink kscriptStorageClass		StorageClass
-  HiLink kscriptType			Type
-  HiLink kscriptTodo			Todo
-  HiLink kscriptComment		Comment
-  HiLink kscriptString			String
-  HiLink kscriptPreCondit		PreCondit
-  HiLink kscriptHardCoded		Statement
+HiLink kscriptConditional		Conditional
+HiLink kscriptRepeat			Repeat
+HiLink kscriptExceptions		Statement
+HiLink kscriptFunction		Function
+HiLink kscriptConst			Constant
+HiLink kscriptStatement		Statement
+HiLink kscriptLabel			Label
+HiLink kscriptStorageClass		StorageClass
+HiLink kscriptType			Type
+HiLink kscriptTodo			Todo
+HiLink kscriptComment		Comment
+HiLink kscriptString			String
+HiLink kscriptPreCondit		PreCondit
+HiLink kscriptHardCoded		Statement
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "kscript"
 
diff --git a/runtime/syntax/kwt.vim b/runtime/syntax/kwt.vim
--- a/runtime/syntax/kwt.vim
+++ b/runtime/syntax/kwt.vim
@@ -3,21 +3,14 @@
 " Maintainer:	Michael Piefel <entwurf@piefel.de>
 " Last Change:	2 May 2001
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
 " Read the C++ syntax to start with
-if version < 600
-  source <sfile>:p:h/cpp.vim
-else
-  runtime! syntax/cpp.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/cpp.vim
+unlet b:current_syntax
 
 " kimwitu++ extentions
 
@@ -58,27 +51,19 @@ syn region kwtUnpBody		transparent keepe
 syn region kwtRewBody		transparent keepend extend fold start="->\s*<" start="^\s*<" end="\s>\s\=;\=$" end="^>\s\=;\=$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_kwt_syn_inits")
-    if version < 508
-	let did_kwt_syn_inits = 1
-	command -nargs=+ HiLink hi link <args>
-    else
-	command -nargs=+ HiLink hi def link <args>
-    endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-    HiLink kwtStatement	cppStatement
-    HiLink kwtDecl	cppStatement
-    HiLink kwtCast	cppStatement
-    HiLink kwtSep	Delimiter
-    HiLink kwtViews	Label
-    HiLink kwtPhylum	Type
-    HiLink kwtOption	PreProc
-    "HiLink cText	Comment
+HiLink kwtStatement	cppStatement
+HiLink kwtDecl	cppStatement
+HiLink kwtCast	cppStatement
+HiLink kwtSep	Delimiter
+HiLink kwtViews	Label
+HiLink kwtPhylum	Type
+HiLink kwtOption	PreProc
+"HiLink cText	Comment
 
-    delcommand HiLink
-endif
+delcommand HiLink
 
 syn sync lines=300
 
diff --git a/runtime/syntax/lace.vim b/runtime/syntax/lace.vim
--- a/runtime/syntax/lace.vim
+++ b/runtime/syntax/lace.vim
@@ -9,11 +9,8 @@
 " it to the maintainer at <utilities@eiffel.com>
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -85,50 +82,42 @@ syn region laceParen		transparent start=
 syn sync lines=40
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_lace_syntax_inits")
-  if version < 508
-    let did_lace_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink laceTopStruct			PreProc
 
-  HiLink laceTopStruct			PreProc
+HiLink laceOptionClause		Statement
+HiLink laceOptionMark			Constant
+HiLink laceClusterProp		Label
+HiLink laceAdaptClassName		Label
+HiLink laceExternal			Statement
+HiLink laceCluster			ModeMsg
 
-  HiLink laceOptionClause		Statement
-  HiLink laceOptionMark			Constant
-  HiLink laceClusterProp		Label
-  HiLink laceAdaptClassName		Label
-  HiLink laceExternal			Statement
-  HiLink laceCluster			ModeMsg
-
-  HiLink laceEscape				Special
+HiLink laceEscape				Special
 
-  HiLink laceBool				Boolean
-  HiLink laceString				String
-  HiLink laceCharacter			Character
-  HiLink laceClassName			Type
-  HiLink laceNumber				Number
+HiLink laceBool				Boolean
+HiLink laceString				String
+HiLink laceCharacter			Character
+HiLink laceClassName			Type
+HiLink laceNumber				Number
 
-  HiLink laceOperator			Special
-  HiLink laceArray				Special
-  HiLink laceExport				Special
-  HiLink laceCreation			Special
-  HiLink laceBrackets			Special
-  HiLink laceConstraint			Special
-
-  HiLink laceComment			Comment
+HiLink laceOperator			Special
+HiLink laceArray				Special
+HiLink laceExport				Special
+HiLink laceCreation			Special
+HiLink laceBrackets			Special
+HiLink laceConstraint			Special
 
-  HiLink laceError				Error
-  HiLink laceStringError		Error
-  HiLink laceParenError			Error
-  HiLink laceBracketError		Error
-  HiLink laceTodo				Todo
+HiLink laceComment			Comment
 
-  delcommand HiLink
-endif
+HiLink laceError				Error
+HiLink laceStringError		Error
+HiLink laceParenError			Error
+HiLink laceBracketError		Error
+HiLink laceTodo				Todo
+
+delcommand HiLink
 
 let b:current_syntax = "lace"
 
diff --git a/runtime/syntax/latte.vim b/runtime/syntax/latte.vim
--- a/runtime/syntax/latte.vim
+++ b/runtime/syntax/latte.vim
@@ -7,11 +7,8 @@
 " I based this on the TeX and Scheme syntax files (but mostly scheme).
 " See http://www.latte.org for info on the language.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -20,11 +17,7 @@ syn match latteOther "\\{"
 syn match latteOther "\\}"
 syn match latteOther "\\\\"
 
-if version < 600
-  set iskeyword=33,43,45,48-57,63,65-90,95,97-122,_
-else
-  setlocal iskeyword=33,43,45,48-57,63,65-90,95,97-122,_
-endif
+setlocal iskeyword=33,43,45,48-57,63,65-90,95,97-122,_
 
 syn region latteVar matchgroup=SpecialChar start=!\\[A-Za-z_]!rs=s+1 end=![^A-Za-z0-9?!+_-]!me=e-1 contains=ALLBUT,latteNumber,latteOther
 syn region latteVar matchgroup=SpecialChar start=!\\[=\&][A-Za-z_]!rs=s+2 end=![^A-Za-z0-9?!+_-]!me=e-1 contains=ALLBUT,latteNumber,latteOther
@@ -70,29 +63,21 @@ syn sync match matchPlace grouphere NONE
 " ... i.e. synchronize on a line that starts at the left margin
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_latte_syntax_inits")
-  if version < 508
-    let did_latte_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink latteSyntax		Statement
+HiLink latteVar			Function
 
-  HiLink latteSyntax		Statement
-  HiLink latteVar			Function
-
-  HiLink latteString		String
-  HiLink latteQuote			String
+HiLink latteString		String
+HiLink latteQuote			String
 
-  HiLink latteDelimiter		Delimiter
-  HiLink latteOperator		Operator
+HiLink latteDelimiter		Delimiter
+HiLink latteOperator		Operator
 
-  HiLink latteComment		Comment
-  HiLink latteError			Error
+HiLink latteComment		Comment
+HiLink latteError			Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "latte"
diff --git a/runtime/syntax/ldif.vim b/runtime/syntax/ldif.vim
--- a/runtime/syntax/ldif.vim
+++ b/runtime/syntax/ldif.vim
@@ -3,9 +3,8 @@
 " Maintainer:	Zak Johnson <zakj@nox.cx>
 " Last Change:	2003-12-30
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -21,23 +20,16 @@ syn region ldifFileValue   matchgroup=ld
 
 syn region ldifComment start=/^#/ end=/\_$/ skip=/\n /
 
-if version >= 508 || !exists("did_ldif_syn_inits")
-  if version < 508
-    let did_ldif_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink ldifAttribute		Type
-  HiLink ldifOption		Identifier
-  HiLink ldifPunctuation	Normal
-  HiLink ldifStringValue	String
-  HiLink ldifBase64Value	Special
-  HiLink ldifFileValue		Special
-  HiLink ldifComment		Comment
+HiLink ldifAttribute		Type
+HiLink ldifOption		Identifier
+HiLink ldifPunctuation	Normal
+HiLink ldifStringValue	String
+HiLink ldifBase64Value	Special
+HiLink ldifFileValue		Special
+HiLink ldifComment		Comment
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "ldif"
diff --git a/runtime/syntax/lex.vim b/runtime/syntax/lex.vim
--- a/runtime/syntax/lex.vim
+++ b/runtime/syntax/lex.vim
@@ -8,11 +8,8 @@
 " Option:
 "   lex_uses_cpp : if this variable exists, then C++ is loaded rather than C
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/lhaskell.vim b/runtime/syntax/lhaskell.vim
--- a/runtime/syntax/lhaskell.vim
+++ b/runtime/syntax/lhaskell.vim
@@ -36,11 +36,8 @@
 "
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -84,15 +81,10 @@ endif
 
 " If user wants us to highlight TeX syntax or guess thinks it's TeX, read it.
 if b:lhs_markup == "tex"
-    if version < 600
-	source <sfile>:p:h/tex.vim
-	set isk+=_
-    else
-	runtime! syntax/tex.vim
-	unlet b:current_syntax
-	" Tex.vim removes "_" from 'iskeyword', but we need it for Haskell.
-	setlocal isk+=_
-    endif
+    runtime! syntax/tex.vim
+    unlet b:current_syntax
+    " Tex.vim removes "_" from 'iskeyword', but we need it for Haskell.
+    setlocal isk+=_
     syntax cluster lhsTeXContainer contains=tex.*Zone,texAbstract
 else
     syntax cluster lhsTeXContainer contains=.*
@@ -100,11 +92,7 @@ endif
 
 " Literate Haskell is Haskell in between text, so at least read Haskell
 " highlighting
-if version < 600
-    syntax include @haskellTop <sfile>:p:h/haskell.vim
-else
-    syntax include @haskellTop syntax/haskell.vim
-endif
+syntax include @haskellTop syntax/haskell.vim
 
 syntax region lhsHaskellBirdTrack start="^>" end="\%(^[^>]\)\@=" contains=@haskellTop,lhsBirdTrack containedin=@lhsTeXContainer
 syntax region lhsHaskellBeginEndBlock start="^\\begin{code}\s*$" matchgroup=NONE end="\%(^\\end{code}.*$\)\@=" contains=@haskellTop,beginCodeBegin containedin=@lhsTeXContainer
@@ -115,23 +103,15 @@ syntax match beginCodeBegin "^\\begin" n
 syntax region beginCodeCode  matchgroup=texDelimiter start="{" end="}"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_tex_syntax_inits")
-  if version < 508
-    let did_tex_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink lhsBirdTrack Comment
 
-  HiLink lhsBirdTrack Comment
+HiLink beginCodeBegin	      texCmdName
+HiLink beginCodeCode	      texSection
 
-  HiLink beginCodeBegin	      texCmdName
-  HiLink beginCodeCode	      texSection
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 " Restore cursor to original position, as it may have been disturbed
 " by the searches in our guessing code
diff --git a/runtime/syntax/lifelines.vim b/runtime/syntax/lifelines.vim
--- a/runtime/syntax/lifelines.vim
+++ b/runtime/syntax/lifelines.vim
@@ -11,9 +11,8 @@
 " For version 5.x: Clear all syntax items
 " For version 6.x: Quit when a syntax file was already loaded
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -110,9 +109,7 @@ syn match	lifelinesNumber	"-\=\<\d\+\.\d
 syn match	lifelinesNumber	"-\=\.\d\+\>"
 
 " folding using {}
-if version >= 600
-	syn region lifelinesFoldBlock	start="{" end="}" transparent fold
-endif
+syn region lifelinesFoldBlock	start="{" end="}" transparent fold
 
 "catch errors caused by wrong parenthesis
 "adapted from original c.vim written by Bram Moolenaar
@@ -123,44 +120,36 @@ syn match	lifelinesParenError	")"
 syn match	lifelinesErrInParen	contained "[{}]"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
+" Only when an item doesn't have highlighting yet
 
-if version >= 508 || !exists("did_lifelines_syn_inits")
-  if version < 508
-    let did_lifelines_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink lifelinesConditional	Conditional
-  HiLink lifelinesArithm	Operator
-  HiLink lifelinesLogical	Conditional
-  HiLink lifelinesInclude	Include
-  HiLink lifelinesComment	Comment
-  HiLink lifelinesStatement	Statement
-  HiLink lifelinesUser		Statement
-  HiLink lifelinesFunct		Statement
-  HiLink lifelinesTable		Statement
-  HiLink lifelinesGedcom	Statement
-  HiLink lifelinesList		Statement
-  HiLink lifelinesRepeat	Repeat
-  HiLink lifelinesFam		Statement
-  HiLink lifelinesIndi		Statement
-  HiLink lifelinesProc		Statement
-  HiLink lifelinesDef		Statement
-  HiLink lifelinesString	String
-  HiLink lifelinesSpecial	Special
-  HiLink lifelinesNumber	Number
-  HiLink lifelinesParenError	Error
-  HiLink lifelinesErrInParen	Error
-  HiLink lifelinesError		Error
-  HiLink lifelinesTodo		Todo
-  HiLink lifelinesDecl		PreProc
+HiLink lifelinesConditional	Conditional
+HiLink lifelinesArithm	Operator
+HiLink lifelinesLogical	Conditional
+HiLink lifelinesInclude	Include
+HiLink lifelinesComment	Comment
+HiLink lifelinesStatement	Statement
+HiLink lifelinesUser		Statement
+HiLink lifelinesFunct		Statement
+HiLink lifelinesTable		Statement
+HiLink lifelinesGedcom	Statement
+HiLink lifelinesList		Statement
+HiLink lifelinesRepeat	Repeat
+HiLink lifelinesFam		Statement
+HiLink lifelinesIndi		Statement
+HiLink lifelinesProc		Statement
+HiLink lifelinesDef		Statement
+HiLink lifelinesString	String
+HiLink lifelinesSpecial	Special
+HiLink lifelinesNumber	Number
+HiLink lifelinesParenError	Error
+HiLink lifelinesErrInParen	Error
+HiLink lifelinesError		Error
+HiLink lifelinesTodo		Todo
+HiLink lifelinesDecl		PreProc
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "lifelines"
 
diff --git a/runtime/syntax/lilo.vim b/runtime/syntax/lilo.vim
--- a/runtime/syntax/lilo.vim
+++ b/runtime/syntax/lilo.vim
@@ -5,21 +5,12 @@
 " Last Change: 2010-02-03
 
 " Setup
-if version >= 600
-  if exists("b:current_syntax")
-    finish
-  endif
-else
-  syntax clear
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+  finish
 endif
 
-if version >= 600
-  command -nargs=1 SetIsk setlocal iskeyword=<args>
-else
-  command -nargs=1 SetIsk set iskeyword=<args>
-endif
-SetIsk @,48-57,.,-,_
-delcommand SetIsk
+setlocal iskeyword=@,48-57,.,-,_
 
 syn case ignore
 
@@ -128,65 +119,58 @@ syn match liloDecNumberPListComment "#.*
 syn match liloAnythingComment "#.*$" contained nextgroup=liloAnything,liloAnythingComment,liloError skipwhite skipempty
 
 " Define the default highlighting
-if version >= 508 || !exists("did_lilo_syntax_inits")
-  if version < 508
-    let did_lilo_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink liloEqPath             liloEquals
-  HiLink liloEqWord             liloEquals
-  HiLink liloEqVga              liloEquals
-  HiLink liloEqDecNumber        liloEquals
-  HiLink liloEqHexNumber        liloEquals
-  HiLink liloEqNumber           liloEquals
-  HiLink liloEqString           liloEquals
-  HiLink liloEqAnything         liloEquals
-  HiLink liloEquals             Special
+HiLink liloEqPath             liloEquals
+HiLink liloEqWord             liloEquals
+HiLink liloEqVga              liloEquals
+HiLink liloEqDecNumber        liloEquals
+HiLink liloEqHexNumber        liloEquals
+HiLink liloEqNumber           liloEquals
+HiLink liloEqString           liloEquals
+HiLink liloEqAnything         liloEquals
+HiLink liloEquals             Special
 
-  HiLink liloError              Error
+HiLink liloError              Error
 
-  HiLink liloEqPathComment      liloComment
-  HiLink liloEqVgaComment       liloComment
-  HiLink liloEqDecNumberComment liloComment
-  HiLink liloEqHexNumberComment liloComment
-  HiLink liloEqStringComment    liloComment
-  HiLink liloEqAnythingComment  liloComment
-  HiLink liloPathComment        liloComment
-  HiLink liloVgaComment         liloComment
-  HiLink liloDecNumberComment   liloComment
-  HiLink liloHexNumberComment   liloComment
-  HiLink liloNumberComment      liloComment
-  HiLink liloStringComment      liloComment
-  HiLink liloAnythingComment    liloComment
-  HiLink liloComment            Comment
+HiLink liloEqPathComment      liloComment
+HiLink liloEqVgaComment       liloComment
+HiLink liloEqDecNumberComment liloComment
+HiLink liloEqHexNumberComment liloComment
+HiLink liloEqStringComment    liloComment
+HiLink liloEqAnythingComment  liloComment
+HiLink liloPathComment        liloComment
+HiLink liloVgaComment         liloComment
+HiLink liloDecNumberComment   liloComment
+HiLink liloHexNumberComment   liloComment
+HiLink liloNumberComment      liloComment
+HiLink liloStringComment      liloComment
+HiLink liloAnythingComment    liloComment
+HiLink liloComment            Comment
 
-  HiLink liloDiskOpt            liloOption
-  HiLink liloKernelOpt          liloOption
-  HiLink liloImageOpt           liloOption
-  HiLink liloOption             Keyword
+HiLink liloDiskOpt            liloOption
+HiLink liloKernelOpt          liloOption
+HiLink liloImageOpt           liloOption
+HiLink liloOption             Keyword
 
-  HiLink liloDecNumber          liloNumber
-  HiLink liloHexNumber          liloNumber
-  HiLink liloDecNumberP         liloNumber
-  HiLink liloNumber             Number
-  HiLink liloString             String
-  HiLink liloPath               Constant
+HiLink liloDecNumber          liloNumber
+HiLink liloHexNumber          liloNumber
+HiLink liloDecNumberP         liloNumber
+HiLink liloNumber             Number
+HiLink liloString             String
+HiLink liloPath               Constant
 
-  HiLink liloSpecial            Special
-  HiLink liloLabel              Title
-  HiLink liloDecNumberList      Special
-  HiLink liloDecNumberPList     Special
-  HiLink liloAnything           Normal
-  HiLink liloEnviron            Identifier
-  HiLink liloVgaKeyword         Identifier
-  HiLink liloImage              Type
-  HiLink liloChRules            Preproc
-  HiLink liloDisk               Preproc
+HiLink liloSpecial            Special
+HiLink liloLabel              Title
+HiLink liloDecNumberList      Special
+HiLink liloDecNumberPList     Special
+HiLink liloAnything           Normal
+HiLink liloEnviron            Identifier
+HiLink liloVgaKeyword         Identifier
+HiLink liloImage              Type
+HiLink liloChRules            Preproc
+HiLink liloDisk               Preproc
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "lilo"
diff --git a/runtime/syntax/lisp.vim b/runtime/syntax/lisp.vim
--- a/runtime/syntax/lisp.vim
+++ b/runtime/syntax/lisp.vim
@@ -561,60 +561,57 @@ syn sync lines=100
 
 " ---------------------------------------------------------------------
 " Define Highlighting: {{{1
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508
-  command -nargs=+ HiLink hi def link <args>
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink lispCommentRegion	lispComment
-  HiLink lispAtomNmbr		lispNumber
-  HiLink lispAtomMark		lispMark
-  HiLink lispInStringString	lispString
+HiLink lispCommentRegion	lispComment
+HiLink lispAtomNmbr		lispNumber
+HiLink lispAtomMark		lispMark
+HiLink lispInStringString	lispString
 
-  HiLink lispAtom		Identifier
-  HiLink lispAtomBarSymbol	Special
-  HiLink lispBarSymbol		Special
-  HiLink lispComment		Comment
-  HiLink lispConcat		Statement
-  HiLink lispDecl		Statement
-  HiLink lispFunc		Statement
-  HiLink lispKey		Type
-  HiLink lispMark		Delimiter
-  HiLink lispNumber		Number
-  HiLink lispParenError		Error
-  HiLink lispEscapeSpecial	Type
-  HiLink lispString		String
-  HiLink lispTodo		Todo
-  HiLink lispVar		Statement
+HiLink lispAtom		Identifier
+HiLink lispAtomBarSymbol	Special
+HiLink lispBarSymbol		Special
+HiLink lispComment		Comment
+HiLink lispConcat		Statement
+HiLink lispDecl		Statement
+HiLink lispFunc		Statement
+HiLink lispKey		Type
+HiLink lispMark		Delimiter
+HiLink lispNumber		Number
+HiLink lispParenError		Error
+HiLink lispEscapeSpecial	Type
+HiLink lispString		String
+HiLink lispTodo		Todo
+HiLink lispVar		Statement
 
-  if exists("g:lisp_rainbow") && g:lisp_rainbow != 0
-   if &bg == "dark"
-    hi def hlLevel0 ctermfg=red         guifg=red1
-    hi def hlLevel1 ctermfg=yellow      guifg=orange1
-    hi def hlLevel2 ctermfg=green       guifg=yellow1
-    hi def hlLevel3 ctermfg=cyan        guifg=greenyellow
-    hi def hlLevel4 ctermfg=magenta     guifg=green1
-    hi def hlLevel5 ctermfg=red         guifg=springgreen1
-    hi def hlLevel6 ctermfg=yellow      guifg=cyan1
-    hi def hlLevel7 ctermfg=green       guifg=slateblue1
-    hi def hlLevel8 ctermfg=cyan        guifg=magenta1
-    hi def hlLevel9 ctermfg=magenta     guifg=purple1
-   else
-    hi def hlLevel0 ctermfg=red         guifg=red3
-    hi def hlLevel1 ctermfg=darkyellow  guifg=orangered3
-    hi def hlLevel2 ctermfg=darkgreen   guifg=orange2
-    hi def hlLevel3 ctermfg=blue        guifg=yellow3
-    hi def hlLevel4 ctermfg=darkmagenta guifg=olivedrab4
-    hi def hlLevel5 ctermfg=red         guifg=green4
-    hi def hlLevel6 ctermfg=darkyellow  guifg=paleturquoise3
-    hi def hlLevel7 ctermfg=darkgreen   guifg=deepskyblue4
-    hi def hlLevel8 ctermfg=blue        guifg=darkslateblue
-    hi def hlLevel9 ctermfg=darkmagenta guifg=darkviolet
-   endif
-  endif
+if exists("g:lisp_rainbow") && g:lisp_rainbow != 0
+ if &bg == "dark"
+  hi def hlLevel0 ctermfg=red         guifg=red1
+  hi def hlLevel1 ctermfg=yellow      guifg=orange1
+  hi def hlLevel2 ctermfg=green       guifg=yellow1
+  hi def hlLevel3 ctermfg=cyan        guifg=greenyellow
+  hi def hlLevel4 ctermfg=magenta     guifg=green1
+  hi def hlLevel5 ctermfg=red         guifg=springgreen1
+  hi def hlLevel6 ctermfg=yellow      guifg=cyan1
+  hi def hlLevel7 ctermfg=green       guifg=slateblue1
+  hi def hlLevel8 ctermfg=cyan        guifg=magenta1
+  hi def hlLevel9 ctermfg=magenta     guifg=purple1
+ else
+  hi def hlLevel0 ctermfg=red         guifg=red3
+  hi def hlLevel1 ctermfg=darkyellow  guifg=orangered3
+  hi def hlLevel2 ctermfg=darkgreen   guifg=orange2
+  hi def hlLevel3 ctermfg=blue        guifg=yellow3
+  hi def hlLevel4 ctermfg=darkmagenta guifg=olivedrab4
+  hi def hlLevel5 ctermfg=red         guifg=green4
+  hi def hlLevel6 ctermfg=darkyellow  guifg=paleturquoise3
+  hi def hlLevel7 ctermfg=darkgreen   guifg=deepskyblue4
+  hi def hlLevel8 ctermfg=blue        guifg=darkslateblue
+  hi def hlLevel9 ctermfg=darkmagenta guifg=darkviolet
+ endif
+endif
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "lisp"
 
diff --git a/runtime/syntax/lite.vim b/runtime/syntax/lite.vim
--- a/runtime/syntax/lite.vim
+++ b/runtime/syntax/lite.vim
@@ -8,11 +8,8 @@
 " Options	lite_sql_query = 1 for SQL syntax highligthing inside strings
 "		lite_minlines = x     to sync at least x lines backwards
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -138,39 +135,31 @@ if main_syntax == 'lite'
 endif
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_lite_syn_inits")
-  if version < 508
-    let did_lite_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink liteComment		Comment
-  HiLink liteString		String
-  HiLink liteNumber		Number
-  HiLink liteFloat		Float
-  HiLink liteIdentifier	Identifier
-  HiLink liteGlobalIdentifier	Identifier
-  HiLink liteIntVar		Identifier
-  HiLink liteFunctions		Function
-  HiLink liteRepeat		Repeat
-  HiLink liteConditional	Conditional
-  HiLink liteStatement		Statement
-  HiLink liteType		Type
-  HiLink liteInclude		Include
-  HiLink liteDefine		Define
-  HiLink liteSpecialChar	SpecialChar
-  HiLink liteParentError	liteError
-  HiLink liteError		Error
-  HiLink liteTodo		Todo
-  HiLink liteOperator		Operator
-  HiLink liteRelation		Operator
+HiLink liteComment		Comment
+HiLink liteString		String
+HiLink liteNumber		Number
+HiLink liteFloat		Float
+HiLink liteIdentifier	Identifier
+HiLink liteGlobalIdentifier	Identifier
+HiLink liteIntVar		Identifier
+HiLink liteFunctions		Function
+HiLink liteRepeat		Repeat
+HiLink liteConditional	Conditional
+HiLink liteStatement		Statement
+HiLink liteType		Type
+HiLink liteInclude		Include
+HiLink liteDefine		Define
+HiLink liteSpecialChar	SpecialChar
+HiLink liteParentError	liteError
+HiLink liteError		Error
+HiLink liteTodo		Todo
+HiLink liteOperator		Operator
+HiLink liteRelation		Operator
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "lite"
 
diff --git a/runtime/syntax/logtalk.vim b/runtime/syntax/logtalk.vim
--- a/runtime/syntax/logtalk.vim
+++ b/runtime/syntax/logtalk.vim
@@ -5,11 +5,8 @@
 " Last Change:	February 4, 2012
 
 
-" Quit when a syntax file was already loaded:
-
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -389,59 +386,49 @@ syn sync ccomment logtalkBlockComment ma
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-if version >= 508 || !exists("did_logtalk_syn_inits")
-	if version < 508
-		let did_logtalk_syn_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+HiLink	logtalkBlockComment	Comment
+HiLink	logtalkLineComment	Comment
+
+HiLink	logtalkOpenEntityDir	Normal
+HiLink	logtalkOpenEntityDirTag	PreProc
 
-	HiLink	logtalkBlockComment	Comment
-	HiLink	logtalkLineComment	Comment
-
-	HiLink	logtalkOpenEntityDir	Normal
-	HiLink	logtalkOpenEntityDirTag	PreProc
+HiLink	logtalkIfContainer	PreProc
+HiLink	logtalkIf		PreProc
+HiLink	logtalkElseIf		PreProc
+HiLink	logtalkElse		PreProc
 
-	HiLink	logtalkIfContainer	PreProc
-	HiLink	logtalkIf		PreProc
-	HiLink	logtalkElseIf		PreProc
-	HiLink	logtalkElse		PreProc
+HiLink	logtalkEntity		Normal
 
-	HiLink	logtalkEntity		Normal
+HiLink	logtalkEntityRel	Normal
+HiLink	logtalkEntityRelTag	PreProc
 
-	HiLink	logtalkEntityRel	Normal
-	HiLink	logtalkEntityRelTag	PreProc
+HiLink	logtalkCloseEntityDir	PreProc
 
-	HiLink	logtalkCloseEntityDir	PreProc
-
-	HiLink	logtalkDir		Normal
-	HiLink	logtalkDirTag		PreProc
+HiLink	logtalkDir		Normal
+HiLink	logtalkDirTag		PreProc
 
-	HiLink	logtalkAtom		String
-	HiLink	logtalkString		String
-	HiLink	logtalkEscapeSequence	SpecialChar
+HiLink	logtalkAtom		String
+HiLink	logtalkString		String
+HiLink	logtalkEscapeSequence	SpecialChar
 
-	HiLink	logtalkNumber		Number
+HiLink	logtalkNumber		Number
 
-	HiLink	logtalkKeyword		Keyword
+HiLink	logtalkKeyword		Keyword
 
-	HiLink	logtalkBuiltIn		Keyword
-	HiLink	logtalkBuiltInMethod	Keyword
+HiLink	logtalkBuiltIn		Keyword
+HiLink	logtalkBuiltInMethod	Keyword
 
-	HiLink	logtalkOperator		Operator
+HiLink	logtalkOperator		Operator
 
-	HiLink	logtalkExtCall		Normal
-	HiLink	logtalkExtCallTag	Operator
+HiLink	logtalkExtCall		Normal
+HiLink	logtalkExtCallTag	Operator
 
-	HiLink	logtalkVariable		Identifier
+HiLink	logtalkVariable		Identifier
 
-	delcommand HiLink
-
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "logtalk"
diff --git a/runtime/syntax/lotos.vim b/runtime/syntax/lotos.vim
--- a/runtime/syntax/lotos.vim
+++ b/runtime/syntax/lotos.vim
@@ -7,11 +7,8 @@
 " I'm not sure I understand all of the syntax highlight language,
 " but this file seems to do the job for standard LOTOS.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -56,26 +53,18 @@ syn keyword lotosType   using
 syn sync lines=250
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_lotos_syntax_inits")
-  if version < 508
-    let did_lotos_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink lotosStatement		Statement
-  HiLink lotosProcess		Label
-  HiLink lotosOperator		Operator
-  HiLink lotosSort		Function
-  HiLink lotosType		Type
-  HiLink lotosComment		Comment
-  HiLink lotosDelimiter		String
+HiLink lotosStatement		Statement
+HiLink lotosProcess		Label
+HiLink lotosOperator		Operator
+HiLink lotosSort		Function
+HiLink lotosType		Type
+HiLink lotosComment		Comment
+HiLink lotosDelimiter		String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "lotos"
 
diff --git a/runtime/syntax/lout.vim b/runtime/syntax/lout.vim
--- a/runtime/syntax/lout.vim
+++ b/runtime/syntax/lout.vim
@@ -16,11 +16,8 @@
 " See the discussion at http://thread.gmane.org/gmane.editors.vim.devel/32151
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -36,11 +33,7 @@ syn sync lines=1000
 
 " Characters allowed in keywords
 " I don't know if 128-255 are allowed in ANS-FORHT
-if version >= 600
-	setlocal iskeyword=@,48-57,.,@-@,_,192-255
-else
-	set iskeyword=@,48-57,.,@-@,_,192-255
-endif
+setlocal iskeyword=@,48-57,.,@-@,_,192-255
 
 " Some special keywords
 syn keyword loutTodo contained TODO lout Lout LOUT
@@ -106,44 +99,36 @@ syn region loutBoldItalic matchgroup=lou
 syn region loutHeadings matchgroup=loutHeads start='@\(\(Title\)\|\(Caption\)\)\s*{' matchgroup=loutHeads end='}' contains=ALLBUT,loutBraceError
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_lout_syn_inits")
-	if version < 508
-		let did_lout_syn_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	" The default methods for highlighting. Can be overrriden later.
-	HiLink loutTodo Todo
-	HiLink loutDefine Define
-	HiLink loutEOmlDef Define
-	HiLink loutFunction Function
-	HiLink loutBraceError Error
-	HiLink loutNULL Special
-	HiLink loutComment Comment
-	HiLink loutSpecial Special
-	HiLink loutSymbols Character
-	HiLink loutInclude Include
-	HiLink loutKeyword Keyword
-	HiLink loutTag Tag
-	HiLink loutMath Number
+" The default methods for highlighting. Can be overrriden later.
+HiLink loutTodo Todo
+HiLink loutDefine Define
+HiLink loutEOmlDef Define
+HiLink loutFunction Function
+HiLink loutBraceError Error
+HiLink loutNULL Special
+HiLink loutComment Comment
+HiLink loutSpecial Special
+HiLink loutSymbols Character
+HiLink loutInclude Include
+HiLink loutKeyword Keyword
+HiLink loutTag Tag
+HiLink loutMath Number
 
-	" HiLink Not really needed here, but I think it is more consistent.
-	HiLink loutMBraces loutMath
-	hi loutItalic term=italic cterm=italic gui=italic
-	HiLink loutIBraces loutItalic
-	hi loutBold term=bold cterm=bold gui=bold
-	HiLink loutBBraces loutBold
-	hi loutBoldItalic term=bold,italic cterm=bold,italic gui=bold,italic
-	HiLink loutBIBraces loutBoldItalic
-	hi loutHeadings term=bold cterm=bold guifg=indianred
-	HiLink loutHeads loutHeadings
+" HiLink Not really needed here, but I think it is more consistent.
+HiLink loutMBraces loutMath
+hi loutItalic term=italic cterm=italic gui=italic
+HiLink loutIBraces loutItalic
+hi loutBold term=bold cterm=bold gui=bold
+HiLink loutBBraces loutBold
+hi loutBoldItalic term=bold,italic cterm=bold,italic gui=bold,italic
+HiLink loutBIBraces loutBoldItalic
+hi loutHeadings term=bold cterm=bold guifg=indianred
+HiLink loutHeads loutHeadings
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "lout"
 
diff --git a/runtime/syntax/lpc.vim b/runtime/syntax/lpc.vim
--- a/runtime/syntax/lpc.vim
+++ b/runtime/syntax/lpc.vim
@@ -9,11 +9,8 @@
 
 " Nodule: This is the start nodule. {{{1
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -360,94 +357,86 @@ endif
 " Nodule: Highlight links {{{1
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_lpc_syn_inits")
-  if version < 508
-    let did_lpc_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink lpcModifier		lpcStorageClass
+HiLink lpcModifier		lpcStorageClass
 
-  HiLink lpcQuotedFmt		lpcFormat
-  HiLink lpcFormat		lpcSpecial
-  HiLink lpcCppString		lpcString	" Cpp means
-						" C Pre-Processor
-  HiLink lpcCommentL		lpcComment
-  HiLink lpcCommentStart	lpcComment
-  HiLink lpcUserLabel		lpcLabel
-  HiLink lpcSpecialCharacter	lpcSpecial
-  HiLink lpcOctal		lpcPreProc
-  HiLink lpcOctalZero		lpcSpecial  " LPC will treat octal numbers
-					    " as decimals, programmers should
-					    " be aware of that.
-  HiLink lpcEfunError		lpcError
-  HiLink lpcKeywdError		lpcError
-  HiLink lpcOctalError		lpcError
-  HiLink lpcParenError		lpcError
-  HiLink lpcErrInParen		lpcError
-  HiLink lpcErrInBracket	lpcError
-  HiLink lpcCommentError	lpcError
-  HiLink lpcCommentStartError	lpcError
-  HiLink lpcSpaceError		lpcError
-  HiLink lpcSpecialError	lpcError
-  HiLink lpcErrFunc		lpcError
+HiLink lpcQuotedFmt		lpcFormat
+HiLink lpcFormat		lpcSpecial
+HiLink lpcCppString		lpcString	" Cpp means
+					      " C Pre-Processor
+HiLink lpcCommentL		lpcComment
+HiLink lpcCommentStart	lpcComment
+HiLink lpcUserLabel		lpcLabel
+HiLink lpcSpecialCharacter	lpcSpecial
+HiLink lpcOctal		lpcPreProc
+HiLink lpcOctalZero		lpcSpecial  " LPC will treat octal numbers
+					  " as decimals, programmers should
+					  " be aware of that.
+HiLink lpcEfunError		lpcError
+HiLink lpcKeywdError		lpcError
+HiLink lpcOctalError		lpcError
+HiLink lpcParenError		lpcError
+HiLink lpcErrInParen		lpcError
+HiLink lpcErrInBracket	lpcError
+HiLink lpcCommentError	lpcError
+HiLink lpcCommentStartError	lpcError
+HiLink lpcSpaceError		lpcError
+HiLink lpcSpecialError	lpcError
+HiLink lpcErrFunc		lpcError
+
+if exists("lpc_pre_v22")
+    HiLink lpcOldEfuns	lpc_efuns
+    HiLink lpcNewEfuns	lpcError
+else
+    HiLink lpcOldEfuns	lpcReserved
+    HiLink lpcNewEfuns	lpc_efuns
+endif
+HiLink lpc_efuns		lpcFunction
 
-  if exists("lpc_pre_v22")
-      HiLink lpcOldEfuns	lpc_efuns
-      HiLink lpcNewEfuns	lpcError
-  else
-      HiLink lpcOldEfuns	lpcReserved
-      HiLink lpcNewEfuns	lpc_efuns
-  endif
-  HiLink lpc_efuns		lpcFunction
+HiLink lpcReserved		lpcPreProc
+HiLink lpcTextString		lpcString   " This should be preprocessors, but
+HiLink lpcArrayString		lpcPreProc  " let's make some difference
+					  " between text and array
 
-  HiLink lpcReserved		lpcPreProc
-  HiLink lpcTextString		lpcString   " This should be preprocessors, but
-  HiLink lpcArrayString		lpcPreProc  " let's make some difference
-					    " between text and array
+HiLink lpcIncluded		lpcString
+HiLink lpcCommentString	lpcString
+HiLink lpcComment2String	lpcString
+HiLink lpcCommentSkip		lpcComment
+HiLink lpcCommentFunc		lpcComment
 
-  HiLink lpcIncluded		lpcString
-  HiLink lpcCommentString	lpcString
-  HiLink lpcComment2String	lpcString
-  HiLink lpcCommentSkip		lpcComment
-  HiLink lpcCommentFunc		lpcComment
-
-  HiLink lpcCppSkip		lpcCppOut
-  HiLink lpcCppOut2		lpcCppOut
-  HiLink lpcCppOut		lpcComment
+HiLink lpcCppSkip		lpcCppOut
+HiLink lpcCppOut2		lpcCppOut
+HiLink lpcCppOut		lpcComment
 
-  " Standard type below
-  HiLink lpcApplies		Special
-  HiLink lpcCharacter		Character
-  HiLink lpcComment		Comment
-  HiLink lpcConditional		Conditional
-  HiLink lpcConstant		Constant
-  HiLink lpcDefine		Macro
-  HiLink lpcError		Error
-  HiLink lpcFloat		Float
-  HiLink lpcFunction		Function
-  HiLink lpcIdentifier		Identifier
-  HiLink lpcInclude		Include
-  HiLink lpcLabel		Label
-  HiLink lpcNumber		Number
-  HiLink lpcOperator		Operator
-  HiLink lpcPreCondit		PreCondit
-  HiLink lpcPreProc		PreProc
-  HiLink lpcRepeat		Repeat
-  HiLink lpcStatement		Statement
-  HiLink lpcStorageClass	StorageClass
-  HiLink lpcString		String
-  HiLink lpcStructure		Structure
-  HiLink lpcSpecial		LineNr
-  HiLink lpcTodo		Todo
-  HiLink lpcType		Type
+" Standard type below
+HiLink lpcApplies		Special
+HiLink lpcCharacter		Character
+HiLink lpcComment		Comment
+HiLink lpcConditional		Conditional
+HiLink lpcConstant		Constant
+HiLink lpcDefine		Macro
+HiLink lpcError		Error
+HiLink lpcFloat		Float
+HiLink lpcFunction		Function
+HiLink lpcIdentifier		Identifier
+HiLink lpcInclude		Include
+HiLink lpcLabel		Label
+HiLink lpcNumber		Number
+HiLink lpcOperator		Operator
+HiLink lpcPreCondit		PreCondit
+HiLink lpcPreProc		PreProc
+HiLink lpcRepeat		Repeat
+HiLink lpcStatement		Statement
+HiLink lpcStorageClass	StorageClass
+HiLink lpcString		String
+HiLink lpcStructure		Structure
+HiLink lpcSpecial		LineNr
+HiLink lpcTodo		Todo
+HiLink lpcType		Type
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 " Nodule: This is the end nodule. {{{1
 
diff --git a/runtime/syntax/lprolog.vim b/runtime/syntax/lprolog.vim
--- a/runtime/syntax/lprolog.vim
+++ b/runtime/syntax/lprolog.vim
@@ -7,11 +7,8 @@
 "               2001 Apr 26 - Upgraded for new Vim version
 "               2000 Jun  5 - Initial release
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -96,41 +93,33 @@ syn sync maxlines=500
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_lprolog_syntax_inits")
-  if version < 508
-    let did_lprolog_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink lprologComment     Comment
-  HiLink lprologTodo	    Todo
+HiLink lprologComment     Comment
+HiLink lprologTodo	    Todo
 
-  HiLink lprologKeyword     Keyword
-  HiLink lprologSpecial     Special
-  HiLink lprologOperator    Operator
-  HiLink lprologIdentifier  Normal
+HiLink lprologKeyword     Keyword
+HiLink lprologSpecial     Special
+HiLink lprologOperator    Operator
+HiLink lprologIdentifier  Normal
 
-  HiLink lprologInteger     Number
-  HiLink lprologReal	    Number
-  HiLink lprologString	    String
+HiLink lprologInteger     Number
+HiLink lprologReal	    Number
+HiLink lprologString	    String
 
-  HiLink lprologCommentErr  Error
-  HiLink lprologBrackErr    Error
-  HiLink lprologParenErr    Error
+HiLink lprologCommentErr  Error
+HiLink lprologBrackErr    Error
+HiLink lprologParenErr    Error
 
-  HiLink lprologModuleName  Special
-  HiLink lprologTypeName    Identifier
+HiLink lprologModuleName  Special
+HiLink lprologTypeName    Identifier
 
-  HiLink lprologVariable    Keyword
-  HiLink lprologAtom	    Normal
-  HiLink lprologClause	    Type
+HiLink lprologVariable    Keyword
+HiLink lprologAtom	    Normal
+HiLink lprologClause	    Type
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "lprolog"
 
diff --git a/runtime/syntax/lscript.vim b/runtime/syntax/lscript.vim
--- a/runtime/syntax/lscript.vim
+++ b/runtime/syntax/lscript.vim
@@ -9,11 +9,8 @@
 " and b) I'm not so crash hot at LotusScript either. If you see any problems
 " feel free to email me with them.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -179,34 +176,26 @@ syn region  lscriptLineNumber	start="^\d
 syn match   lscriptTypeSpecifier	"[a-zA-Z0-9][\$%&!#]"ms=s+1
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_lscript_syntax_inits")
-  if version < 508
-    let did_lscript_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  hi lscriptNotesType	term=underline ctermfg=DarkGreen guifg=SeaGreen gui=bold
+hi lscriptNotesType	term=underline ctermfg=DarkGreen guifg=SeaGreen gui=bold
 
-  HiLink lscriptNotesConst	lscriptNotesType
-  HiLink lscriptLineNumber	Comment
-  HiLink lscriptDatatype	Type
-  HiLink lscriptNumber		Number
-  HiLink lscriptError		Error
-  HiLink lscriptStatement	Statement
-  HiLink lscriptString		String
-  HiLink lscriptComment		Comment
-  HiLink lscriptTodo		Todo
-  HiLink lscriptFunction	Identifier
-  HiLink lscriptMethods		PreProc
-  HiLink lscriptEvents		Special
-  HiLink lscriptTypeSpecifier	Type
+HiLink lscriptNotesConst	lscriptNotesType
+HiLink lscriptLineNumber	Comment
+HiLink lscriptDatatype	Type
+HiLink lscriptNumber		Number
+HiLink lscriptError		Error
+HiLink lscriptStatement	Statement
+HiLink lscriptString		String
+HiLink lscriptComment		Comment
+HiLink lscriptTodo		Todo
+HiLink lscriptFunction	Identifier
+HiLink lscriptMethods		PreProc
+HiLink lscriptEvents		Special
+HiLink lscriptTypeSpecifier	Type
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "lscript"
 
diff --git a/runtime/syntax/lss.vim b/runtime/syntax/lss.vim
--- a/runtime/syntax/lss.vim
+++ b/runtime/syntax/lss.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Scott Bigham <dsb@killerbunnies.org>
 " Last Change:	2004 Oct 06
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -70,63 +67,56 @@ syn case match
 syn match lssComment "#.*$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_lss_syntax_inits")
-  if version < 508
-    let did_lss_syntax_inits = 1
-  endif
+" Only when an item doesn't have highlighting yet
+hi def link lssComment Comment
+hi def link lssElement Identifier
 
-  hi def link lssComment Comment
-  hi def link lssElement Identifier
-
-  hi def lssBold		term=bold cterm=bold
-  hi def lssReverse		term=reverse cterm=reverse
-  hi def lssUnderline		term=underline cterm=underline
-  hi def lssStandout		term=standout cterm=standout
+hi def lssBold		term=bold cterm=bold
+hi def lssReverse		term=reverse cterm=reverse
+hi def lssUnderline		term=underline cterm=underline
+hi def lssStandout		term=standout cterm=standout
 
-  hi def lssRedFg		ctermfg=red
-  hi def lssBlueFg		ctermfg=blue
-  hi def lssGreenFg		ctermfg=green
-  hi def lssBrownFg		ctermfg=brown
-  hi def lssMagentaFg		ctermfg=magenta
-  hi def lssCyanFg		ctermfg=cyan
-  hi def lssGrayFg		ctermfg=gray
-  if $COLORTERM == "rxvt"
-    " On rxvt's, bright colors are activated by setting the bold attribute.
-    hi def lssLightgrayFg	ctermfg=gray cterm=bold
-    hi def lssBrightredFg	ctermfg=red cterm=bold
-    hi def lssBrightgreenFg	ctermfg=green cterm=bold
-    hi def lssYellowFg		ctermfg=yellow cterm=bold
-    hi def lssBrightblueFg	ctermfg=blue cterm=bold
-    hi def lssBrightmagentaFg	ctermfg=magenta cterm=bold
-    hi def lssBrightcyanFg	ctermfg=cyan cterm=bold
-  else
-    hi def lssLightgrayFg	ctermfg=lightgray
-    hi def lssBrightredFg	ctermfg=lightred
-    hi def lssBrightgreenFg	ctermfg=lightgreen
-    hi def lssYellowFg		ctermfg=yellow
-    hi def lssBrightblueFg	ctermfg=lightblue
-    hi def lssBrightmagentaFg	ctermfg=lightmagenta
-    hi def lssBrightcyanFg	ctermfg=lightcyan
-  endif
+hi def lssRedFg		ctermfg=red
+hi def lssBlueFg		ctermfg=blue
+hi def lssGreenFg		ctermfg=green
+hi def lssBrownFg		ctermfg=brown
+hi def lssMagentaFg		ctermfg=magenta
+hi def lssCyanFg		ctermfg=cyan
+hi def lssGrayFg		ctermfg=gray
+if $COLORTERM == "rxvt"
+  " On rxvt's, bright colors are activated by setting the bold attribute.
+  hi def lssLightgrayFg	ctermfg=gray cterm=bold
+  hi def lssBrightredFg	ctermfg=red cterm=bold
+  hi def lssBrightgreenFg	ctermfg=green cterm=bold
+  hi def lssYellowFg		ctermfg=yellow cterm=bold
+  hi def lssBrightblueFg	ctermfg=blue cterm=bold
+  hi def lssBrightmagentaFg	ctermfg=magenta cterm=bold
+  hi def lssBrightcyanFg	ctermfg=cyan cterm=bold
+else
+  hi def lssLightgrayFg	ctermfg=lightgray
+  hi def lssBrightredFg	ctermfg=lightred
+  hi def lssBrightgreenFg	ctermfg=lightgreen
+  hi def lssYellowFg		ctermfg=yellow
+  hi def lssBrightblueFg	ctermfg=lightblue
+  hi def lssBrightmagentaFg	ctermfg=lightmagenta
+  hi def lssBrightcyanFg	ctermfg=lightcyan
+endif
 
-  hi def lssRedBg		ctermbg=red
-  hi def lssBlueBg		ctermbg=blue
-  hi def lssGreenBg		ctermbg=green
-  hi def lssBrownBg		ctermbg=brown
-  hi def lssMagentaBg		ctermbg=magenta
-  hi def lssCyanBg		ctermbg=cyan
-  hi def lssLightgrayBg		ctermbg=lightgray
-  hi def lssGrayBg		ctermbg=gray
-  hi def lssBrightredBg		ctermbg=lightred
-  hi def lssBrightgreenBg	ctermbg=lightgreen
-  hi def lssYellowBg		ctermbg=yellow
-  hi def lssBrightblueBg	ctermbg=lightblue
-  hi def lssBrightmagentaBg	ctermbg=lightmagenta
-  hi def lssBrightcyanBg	ctermbg=lightcyan
-  hi def lssWhiteBg		ctermbg=white ctermfg=black
-endif
+hi def lssRedBg		ctermbg=red
+hi def lssBlueBg		ctermbg=blue
+hi def lssGreenBg		ctermbg=green
+hi def lssBrownBg		ctermbg=brown
+hi def lssMagentaBg		ctermbg=magenta
+hi def lssCyanBg		ctermbg=cyan
+hi def lssLightgrayBg		ctermbg=lightgray
+hi def lssGrayBg		ctermbg=gray
+hi def lssBrightredBg		ctermbg=lightred
+hi def lssBrightgreenBg	ctermbg=lightgreen
+hi def lssYellowBg		ctermbg=yellow
+hi def lssBrightblueBg	ctermbg=lightblue
+hi def lssBrightmagentaBg	ctermbg=lightmagenta
+hi def lssBrightcyanBg	ctermbg=lightcyan
+hi def lssWhiteBg		ctermbg=white ctermfg=black
 
 let b:current_syntax = "lss"
 
diff --git a/runtime/syntax/lua.vim b/runtime/syntax/lua.vim
--- a/runtime/syntax/lua.vim
+++ b/runtime/syntax/lua.vim
@@ -7,11 +7,8 @@
 "		lua_subversion = 0 (4.0, 5.0) or 1 (5.1) or 2 (5.2)
 "		default 5.2
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -325,40 +322,32 @@ elseif lua_version == 5
 endif
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_lua_syntax_inits")
-  if version < 508
-    let did_lua_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink luaStatement		Statement
-  HiLink luaRepeat		Repeat
-  HiLink luaFor			Repeat
-  HiLink luaString		String
-  HiLink luaString2		String
-  HiLink luaNumber		Number
-  HiLink luaOperator		Operator
-  HiLink luaIn			Operator
-  HiLink luaConstant		Constant
-  HiLink luaCond		Conditional
-  HiLink luaElse		Conditional
-  HiLink luaFunction		Function
-  HiLink luaComment		Comment
-  HiLink luaTodo		Todo
-  HiLink luaTable		Structure
-  HiLink luaError		Error
-  HiLink luaParenError		Error
-  HiLink luaBraceError		Error
-  HiLink luaSpecial		SpecialChar
-  HiLink luaFunc		Identifier
-  HiLink luaLabel		Label
+HiLink luaStatement		Statement
+HiLink luaRepeat		Repeat
+HiLink luaFor			Repeat
+HiLink luaString		String
+HiLink luaString2		String
+HiLink luaNumber		Number
+HiLink luaOperator		Operator
+HiLink luaIn			Operator
+HiLink luaConstant		Constant
+HiLink luaCond		Conditional
+HiLink luaElse		Conditional
+HiLink luaFunction		Function
+HiLink luaComment		Comment
+HiLink luaTodo		Todo
+HiLink luaTable		Structure
+HiLink luaError		Error
+HiLink luaParenError		Error
+HiLink luaBraceError		Error
+HiLink luaSpecial		SpecialChar
+HiLink luaFunc		Identifier
+HiLink luaLabel		Label
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "lua"
 
diff --git a/runtime/syntax/m4.vim b/runtime/syntax/m4.vim
--- a/runtime/syntax/m4.vim
+++ b/runtime/syntax/m4.vim
@@ -8,15 +8,12 @@
 " capital letters and have at least one argument (i.e. the '('
 " must be there). Let me know if this is a problem.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
+" quit when a syntax file was already loaded
 if !exists("main_syntax")
-  if version < 600
-    syntax clear
-  elseif exists("b:current_syntax")
-  finish
-endif
-" we define it here so that included files can test for it
+  if exists("b:current_syntax")
+	finish
+  endif
+  " we define it here so that included files can test for it
   let main_syntax='m4'
 endif
 
@@ -39,30 +36,22 @@ syn region m4String   start="`" end="'" 
 syn cluster m4Top     contains=m4Comment,m4Constants,m4Special,m4Variable,m4String,m4Paren,m4Command,m4Statement,m4Function
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_m4_syn_inits")
-  if version < 508
-    let did_m4_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink m4Delimiter Delimiter
-  HiLink m4Comment   Comment
-  HiLink m4Function  Function
-  HiLink m4Keyword   Keyword
-  HiLink m4Special   Special
-  HiLink m4String    String
-  HiLink m4Statement Statement
-  HiLink m4Preproc   PreProc
-  HiLink m4Type      Type
-  HiLink m4Special   Special
-  HiLink m4Variable  Special
-  HiLink m4Constants Constant
-  HiLink m4Builtin   Statement
-  delcommand HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink m4Delimiter Delimiter
+HiLink m4Comment   Comment
+HiLink m4Function  Function
+HiLink m4Keyword   Keyword
+HiLink m4Special   Special
+HiLink m4String    String
+HiLink m4Statement Statement
+HiLink m4Preproc   PreProc
+HiLink m4Type      Type
+HiLink m4Special   Special
+HiLink m4Variable  Special
+HiLink m4Constants Constant
+HiLink m4Builtin   Statement
+delcommand HiLink
 
 let b:current_syntax = "m4"
 
diff --git a/runtime/syntax/make.vim b/runtime/syntax/make.vim
--- a/runtime/syntax/make.vim
+++ b/runtime/syntax/make.vim
@@ -4,11 +4,8 @@
 " URL:		http://www.fleiner.com/vim/syntax/make.vim
 " Last Change:	2015 Feb 28
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -101,40 +98,32 @@ syn sync match makeCommandSync groupther
 syn sync match makeCommandSync groupthere makeCommands "^[A-Za-z0-9_./$()%-][A-Za-z0-9_./\t $()%-]*:\{1,2}\s*$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_make_syn_inits")
-  if version < 508
-    let did_make_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink makeNextLine		makeSpecial
-  HiLink makeCmdNextLine	makeSpecial
-  HiLink makeSpecTarget		Statement
-  if !exists("make_no_commands")
-    HiLink makeCommands		Number
-  endif
-  HiLink makeImplicit		Function
-  HiLink makeTarget		Function
-  HiLink makeInclude		Include
-  HiLink makePreCondit		PreCondit
-  HiLink makeStatement		Statement
-  HiLink makeIdent		Identifier
-  HiLink makeSpecial		Special
-  HiLink makeComment		Comment
-  HiLink makeDString		String
-  HiLink makeSString		String
-  HiLink makeBString		Function
-  HiLink makeError		Error
-  HiLink makeTodo		Todo
-  HiLink makeDefine		Define
-  HiLink makeCommandError	Error
-  HiLink makeConfig		PreCondit
-  delcommand HiLink
+HiLink makeNextLine		makeSpecial
+HiLink makeCmdNextLine	makeSpecial
+HiLink makeSpecTarget		Statement
+if !exists("make_no_commands")
+HiLink makeCommands		Number
 endif
+HiLink makeImplicit		Function
+HiLink makeTarget		Function
+HiLink makeInclude		Include
+HiLink makePreCondit		PreCondit
+HiLink makeStatement		Statement
+HiLink makeIdent		Identifier
+HiLink makeSpecial		Special
+HiLink makeComment		Comment
+HiLink makeDString		String
+HiLink makeSString		String
+HiLink makeBString		Function
+HiLink makeError		Error
+HiLink makeTodo		Todo
+HiLink makeDefine		Define
+HiLink makeCommandError	Error
+HiLink makeConfig		PreCondit
+delcommand HiLink
 
 let b:current_syntax = "make"
 
diff --git a/runtime/syntax/man.vim b/runtime/syntax/man.vim
--- a/runtime/syntax/man.vim
+++ b/runtime/syntax/man.vim
@@ -9,20 +9,13 @@
 "	* manSubHeading
 "	* manSynopsis (only for sections 2 and 3)
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " Get the CTRL-H syntax to handle backspaced text
-if version >= 600
-  runtime! syntax/ctrlh.vim
-else
-  source <sfile>:p:h/ctrlh.vim
-endif
+runtime! syntax/ctrlh.vim
 
 syn case ignore
 syn match  manReference       "\f\+([1-9][a-z]\=)"
@@ -41,26 +34,18 @@ endif
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_man_syn_inits")
-  if version < 508
-    let did_man_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink manTitle	    Title
-  HiLink manSectionHeading  Statement
-  HiLink manOptionDesc	    Constant
-  HiLink manLongOptionDesc  Constant
-  HiLink manReference	    PreProc
-  HiLink manSubHeading      Function
-  HiLink manCFuncDefinition Function
+HiLink manTitle	    Title
+HiLink manSectionHeading  Statement
+HiLink manOptionDesc	    Constant
+HiLink manLongOptionDesc  Constant
+HiLink manReference	    PreProc
+HiLink manSubHeading      Function
+HiLink manCFuncDefinition Function
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "man"
 
diff --git a/runtime/syntax/maple.vim b/runtime/syntax/maple.vim
--- a/runtime/syntax/maple.vim
+++ b/runtime/syntax/maple.vim
@@ -21,11 +21,8 @@
 " but only the contents of packages of Maple V Release 4, and the top-level
 " routines of Release 4.  <Jacques Carette - carette@mcmaster.ca>
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -551,82 +548,74 @@ endif
 " =====================================================================
 
 " Highlighting: Define the default highlighting. {{{1
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_maplev_syntax_inits")
-  if version < 508
-    let did_maplev_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " Maple->Maple Links {{{2
-  HiLink mvBraceError	mvError
-  HiLink mvCurlyError	mvError
-  HiLink mvDebug		mvTodo
-  HiLink mvParenError	mvError
-  HiLink mvPkg_DEtools	mvPkgFunc
-  HiLink mvPkg_Galois	mvPkgFunc
-  HiLink mvPkg_GaussInt	mvPkgFunc
-  HiLink mvPkg_LREtools	mvPkgFunc
-  HiLink mvPkg_combinat	mvPkgFunc
-  HiLink mvPkg_combstruct	mvPkgFunc
-  HiLink mvPkg_difforms	mvPkgFunc
-  HiLink mvPkg_finance	mvPkgFunc
-  HiLink mvPkg_genfunc	mvPkgFunc
-  HiLink mvPkg_geometry	mvPkgFunc
-  HiLink mvPkg_grobner	mvPkgFunc
-  HiLink mvPkg_group	mvPkgFunc
-  HiLink mvPkg_inttrans	mvPkgFunc
-  HiLink mvPkg_liesymm	mvPkgFunc
-  HiLink mvPkg_linalg	mvPkgFunc
-  HiLink mvPkg_logic	mvPkgFunc
-  HiLink mvPkg_networks	mvPkgFunc
-  HiLink mvPkg_numapprox	mvPkgFunc
-  HiLink mvPkg_numtheory	mvPkgFunc
-  HiLink mvPkg_orthopoly	mvPkgFunc
-  HiLink mvPkg_padic	mvPkgFunc
-  HiLink mvPkg_plots	mvPkgFunc
-  HiLink mvPkg_plottools	mvPkgFunc
-  HiLink mvPkg_powseries	mvPkgFunc
-  HiLink mvPkg_process	mvPkgFunc
-  HiLink mvPkg_simplex	mvPkgFunc
-  HiLink mvPkg_stats	mvPkgFunc
-  HiLink mvPkg_student	mvPkgFunc
-  HiLink mvPkg_sumtools	mvPkgFunc
-  HiLink mvPkg_tensor	mvPkgFunc
-  HiLink mvPkg_totorder	mvPkgFunc
-  HiLink mvRange		mvOper
-  HiLink mvSemiError	mvError
-  HiLink mvDelim		Delimiter
+" Maple->Maple Links {{{2
+HiLink mvBraceError	mvError
+HiLink mvCurlyError	mvError
+HiLink mvDebug		mvTodo
+HiLink mvParenError	mvError
+HiLink mvPkg_DEtools	mvPkgFunc
+HiLink mvPkg_Galois	mvPkgFunc
+HiLink mvPkg_GaussInt	mvPkgFunc
+HiLink mvPkg_LREtools	mvPkgFunc
+HiLink mvPkg_combinat	mvPkgFunc
+HiLink mvPkg_combstruct	mvPkgFunc
+HiLink mvPkg_difforms	mvPkgFunc
+HiLink mvPkg_finance	mvPkgFunc
+HiLink mvPkg_genfunc	mvPkgFunc
+HiLink mvPkg_geometry	mvPkgFunc
+HiLink mvPkg_grobner	mvPkgFunc
+HiLink mvPkg_group	mvPkgFunc
+HiLink mvPkg_inttrans	mvPkgFunc
+HiLink mvPkg_liesymm	mvPkgFunc
+HiLink mvPkg_linalg	mvPkgFunc
+HiLink mvPkg_logic	mvPkgFunc
+HiLink mvPkg_networks	mvPkgFunc
+HiLink mvPkg_numapprox	mvPkgFunc
+HiLink mvPkg_numtheory	mvPkgFunc
+HiLink mvPkg_orthopoly	mvPkgFunc
+HiLink mvPkg_padic	mvPkgFunc
+HiLink mvPkg_plots	mvPkgFunc
+HiLink mvPkg_plottools	mvPkgFunc
+HiLink mvPkg_powseries	mvPkgFunc
+HiLink mvPkg_process	mvPkgFunc
+HiLink mvPkg_simplex	mvPkgFunc
+HiLink mvPkg_stats	mvPkgFunc
+HiLink mvPkg_student	mvPkgFunc
+HiLink mvPkg_sumtools	mvPkgFunc
+HiLink mvPkg_tensor	mvPkgFunc
+HiLink mvPkg_totorder	mvPkgFunc
+HiLink mvRange		mvOper
+HiLink mvSemiError	mvError
+HiLink mvDelim		Delimiter
 
-  " Maple->Standard Links {{{2
-  HiLink mvAssign		Delimiter
-  HiLink mvBool		Boolean
-  HiLink mvComma		Delimiter
-  HiLink mvComment		Comment
-  HiLink mvCond		Conditional
-  HiLink mvConstant		Number
-  HiLink mvDelayEval	Label
-  HiLink mvDcolon		Delimiter
-  HiLink mvError		Error
-  HiLink mvLibrary		Statement
-  HiLink mvNumber		Number
-  HiLink mvOper		Operator
-  HiLink mvAssign		Delimiter
-  HiLink mvPackage		Type
-  HiLink mvPkgFunc		Function
-  HiLink mvPktOption	Special
-  HiLink mvRepeat		Repeat
-  HiLink mvSpecial		Special
-  HiLink mvStatement	Statement
-  HiLink mvName		String
-  HiLink mvString		String
-  HiLink mvTodo		Todo
+" Maple->Standard Links {{{2
+HiLink mvAssign		Delimiter
+HiLink mvBool		Boolean
+HiLink mvComma		Delimiter
+HiLink mvComment		Comment
+HiLink mvCond		Conditional
+HiLink mvConstant		Number
+HiLink mvDelayEval	Label
+HiLink mvDcolon		Delimiter
+HiLink mvError		Error
+HiLink mvLibrary		Statement
+HiLink mvNumber		Number
+HiLink mvOper		Operator
+HiLink mvAssign		Delimiter
+HiLink mvPackage		Type
+HiLink mvPkgFunc		Function
+HiLink mvPktOption	Special
+HiLink mvRepeat		Repeat
+HiLink mvSpecial		Special
+HiLink mvStatement	Statement
+HiLink mvName		String
+HiLink mvString		String
+HiLink mvTodo		Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 " Current Syntax: {{{1
 let b:current_syntax = "maple"
diff --git a/runtime/syntax/markdown.vim b/runtime/syntax/markdown.vim
--- a/runtime/syntax/markdown.vim
+++ b/runtime/syntax/markdown.vim
@@ -2,7 +2,7 @@
 " Language:     Markdown
 " Maintainer:   Tim Pope <vimNOSPAM@tpope.org>
 " Filenames:    *.markdown
-" Last Change:  2013 May 30
+" Last Change:  2016 Aug 29
 
 if exists("b:current_syntax")
   finish
@@ -70,29 +70,34 @@ syn region markdownUrlTitle matchgroup=m
 syn region markdownUrlTitle matchgroup=markdownUrlTitleDelimiter start=+'+ end=+'+ keepend contained
 syn region markdownUrlTitle matchgroup=markdownUrlTitleDelimiter start=+(+ end=+)+ keepend contained
 
-syn region markdownLinkText matchgroup=markdownLinkTextDelimiter start="!\=\[\%(\_[^]]*]\%( \=[[(]\)\)\@=" end="\]\%( \=[[(]\)\@=" keepend nextgroup=markdownLink,markdownId skipwhite contains=@markdownInline,markdownLineStart
+syn region markdownLinkText matchgroup=markdownLinkTextDelimiter start="!\=\[\%(\_[^]]*]\%( \=[[(]\)\)\@=" end="\]\%( \=[[(]\)\@=" nextgroup=markdownLink,markdownId skipwhite contains=@markdownInline,markdownLineStart
 syn region markdownLink matchgroup=markdownLinkDelimiter start="(" end=")" contains=markdownUrl keepend contained
 syn region markdownId matchgroup=markdownIdDelimiter start="\[" end="\]" keepend contained
 syn region markdownAutomaticLink matchgroup=markdownUrlDelimiter start="<\%(\w\+:\|[[:alnum:]_+-]\+@\)\@=" end=">" keepend oneline
 
-syn region markdownItalic start="\S\@<=\*\|\*\S\@=" end="\S\@<=\*\|\*\S\@=" keepend contains=markdownLineStart
-syn region markdownItalic start="\S\@<=_\|_\S\@=" end="\S\@<=_\|_\S\@=" keepend contains=markdownLineStart
-syn region markdownBold start="\S\@<=\*\*\|\*\*\S\@=" end="\S\@<=\*\*\|\*\*\S\@=" keepend contains=markdownLineStart,markdownItalic
-syn region markdownBold start="\S\@<=__\|__\S\@=" end="\S\@<=__\|__\S\@=" keepend contains=markdownLineStart,markdownItalic
-syn region markdownBoldItalic start="\S\@<=\*\*\*\|\*\*\*\S\@=" end="\S\@<=\*\*\*\|\*\*\*\S\@=" keepend contains=markdownLineStart
-syn region markdownBoldItalic start="\S\@<=___\|___\S\@=" end="\S\@<=___\|___\S\@=" keepend contains=markdownLineStart
+let s:concealends = has('conceal') ? ' concealends' : ''
+exe 'syn region markdownItalic matchgroup=markdownItalicDelimiter start="\S\@<=\*\|\*\S\@=" end="\S\@<=\*\|\*\S\@=" keepend contains=markdownLineStart' . s:concealends
+exe 'syn region markdownItalic matchgroup=markdownItalicDelimiter start="\S\@<=_\|_\S\@=" end="\S\@<=_\|_\S\@=" keepend contains=markdownLineStart' . s:concealends
+exe 'syn region markdownBold matchgroup=markdownBoldDelimiter start="\S\@<=\*\*\|\*\*\S\@=" end="\S\@<=\*\*\|\*\*\S\@=" keepend contains=markdownLineStart,markdownItalic' . s:concealends
+exe 'syn region markdownBold matchgroup=markdownBoldDelimiter start="\S\@<=__\|__\S\@=" end="\S\@<=__\|__\S\@=" keepend contains=markdownLineStart,markdownItalic' . s:concealends
+exe 'syn region markdownBoldItalic matchgroup=markdownBoldItalicDelimiter start="\S\@<=\*\*\*\|\*\*\*\S\@=" end="\S\@<=\*\*\*\|\*\*\*\S\@=" keepend contains=markdownLineStart' . s:concealends
+exe 'syn region markdownBoldItalic matchgroup=markdownBoldItalicDelimiter start="\S\@<=___\|___\S\@=" end="\S\@<=___\|___\S\@=" keepend contains=markdownLineStart' . s:concealends
+
 syn region markdownCode matchgroup=markdownCodeDelimiter start="`" end="`" keepend contains=markdownLineStart
 syn region markdownCode matchgroup=markdownCodeDelimiter start="`` \=" end=" \=``" keepend contains=markdownLineStart
 syn region markdownCode matchgroup=markdownCodeDelimiter start="^\s*```.*$" end="^\s*```\ze\s*$" keepend
 
+syn match markdownFootnote "\[^[^\]]\+\]"
+syn match markdownFootnoteDefinition "^\[^[^\]]\+\]:"
+
 if main_syntax ==# 'markdown'
   for s:type in g:markdown_fenced_languages
-    exe 'syn region markdownHighlight'.substitute(matchstr(s:type,'[^=]*$'),'\..*','','').' matchgroup=markdownCodeDelimiter start="^\s*```'.matchstr(s:type,'[^=]*').'\>.*$" end="^\s*```\ze\s*$" keepend contains=@markdownHighlight'.substitute(matchstr(s:type,'[^=]*$'),'\.','','g')
+    exe 'syn region markdownHighlight'.substitute(matchstr(s:type,'[^=]*$'),'\..*','','').' matchgroup=markdownCodeDelimiter start="^\s*```\s*'.matchstr(s:type,'[^=]*').'\>.*$" end="^\s*```\ze\s*$" keepend contains=@markdownHighlight'.substitute(matchstr(s:type,'[^=]*$'),'\.','','g')
   endfor
   unlet! s:type
 endif
 
-syn match markdownEscape "\\[][\\`*_{}()#+.!-]"
+syn match markdownEscape "\\[][\\`*_{}()<>#+.!-]"
 syn match markdownError "\w\@<=_\w\@="
 
 hi def link markdownH1                    htmlH1
@@ -108,6 +113,9 @@ hi def link markdownListMarker          
 hi def link markdownBlockquote            Comment
 hi def link markdownRule                  PreProc
 
+hi def link markdownFootnote              Typedef
+hi def link markdownFootnoteDefinition    Typedef
+
 hi def link markdownLinkText              htmlLink
 hi def link markdownIdDeclaration         Typedef
 hi def link markdownId                    Type
@@ -119,8 +127,11 @@ hi def link markdownUrlDelimiter        
 hi def link markdownUrlTitleDelimiter     Delimiter
 
 hi def link markdownItalic                htmlItalic
+hi def link markdownItalicDelimiter       markdownItalic
 hi def link markdownBold                  htmlBold
+hi def link markdownBoldDelimiter         markdownBold
 hi def link markdownBoldItalic            htmlBoldItalic
+hi def link markdownBoldItalicDelimiter   markdownBoldItalic
 hi def link markdownCodeDelimiter         Delimiter
 
 hi def link markdownEscape                Special
diff --git a/runtime/syntax/mason.vim b/runtime/syntax/mason.vim
--- a/runtime/syntax/mason.vim
+++ b/runtime/syntax/mason.vim
@@ -13,12 +13,8 @@
 "  - Fix <%text> blocks to show HTML tags but ignore Mason tags.
 "
 
-" Clear previous syntax settings unless this is v6 or above, in which case just
-" exit without doing anything.
-"
-if version < 600
-	syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -30,22 +26,14 @@ endif
 
 " First pull in the HTML syntax.
 "
-if version < 600
-	so <sfile>:p:h/html.vim
-else
-	runtime! syntax/html.vim
-	unlet b:current_syntax
-endif
+runtime! syntax/html.vim
+unlet b:current_syntax
 
 syn cluster htmlPreproc add=@masonTop
 
 " Now pull in the Perl syntax.
 "
-if version < 600
-	syn include @perlTop <sfile>:p:h/perl.vim
-else
-	syn include @perlTop syntax/perl.vim
-endif
+syn include @perlTop syntax/perl.vim
 
 " It's hard to reduce down to the correct sub-set of Perl to highlight in some
 " of these cases so I've taken the safe option of just using perlTop in all of
@@ -78,19 +66,7 @@ syn cluster masonTop contains=masonLine,
 
 " Set up default highlighting. Almost all of this is done in the included
 " syntax files.
-"
-if version >= 508 || !exists("did_mason_syn_inits")
-	if version < 508
-		let did_mason_syn_inits = 1
-		com -nargs=+ HiLink hi link <args>
-	else
-		com -nargs=+ HiLink hi def link <args>
-	endif
-
-	HiLink masonDoc Comment
-
-	delc HiLink
-endif
+hi def link masonDoc Comment
 
 let b:current_syntax = "mason"
 
diff --git a/runtime/syntax/master.vim b/runtime/syntax/master.vim
--- a/runtime/syntax/master.vim
+++ b/runtime/syntax/master.vim
@@ -8,11 +8,8 @@
 " this is a very simple syntax file - I will be improving it
 " add entire DEFINE syntax
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -28,22 +25,14 @@ syn region  masterString	start=+'+  end=
 syn match   masterComment	"\$.*"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_master_syntax_inits")
-  if version < 508
-    let did_master_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink masterKeyword Keyword
-  HiLink masterComment Comment
-  HiLink masterString  String
+HiLink masterKeyword Keyword
+HiLink masterComment Comment
+HiLink masterString  String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "master"
 
diff --git a/runtime/syntax/matlab.vim b/runtime/syntax/matlab.vim
--- a/runtime/syntax/matlab.vim
+++ b/runtime/syntax/matlab.vim
@@ -8,11 +8,8 @@
 " Change History:
 " 		- 'global' and 'persistent' keyword are now recognized
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -76,49 +73,41 @@ syn match matlabError	"-\=\<\d\+\.\d\+\.
 syn match matlabError	"-\=\<\d\+\.\d\+[eEdD][-+]\=\d\+\.\([^*/\\^]\)"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_matlab_syntax_inits")
-  if version < 508
-    let did_matlab_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink matlabTransposeOperator	matlabOperator
-  HiLink matlabOperator			Operator
-  HiLink matlabLineContinuation		Special
-  HiLink matlabLabel			Label
-  HiLink matlabConditional		Conditional
-  HiLink matlabExceptions		Conditional
-  HiLink matlabRepeat			Repeat
-  HiLink matlabTodo			Todo
-  HiLink matlabString			String
-  HiLink matlabDelimiter		Identifier
-  HiLink matlabTransposeOther		Identifier
-  HiLink matlabNumber			Number
-  HiLink matlabFloat			Float
-  HiLink matlabFunction			Function
-  HiLink matlabError			Error
-  HiLink matlabImplicit			matlabStatement
-  HiLink matlabStatement		Statement
-  HiLink matlabOO			Statement
-  HiLink matlabSemicolon		SpecialChar
-  HiLink matlabComment			Comment
-  HiLink matlabMultilineComment		Comment
-  HiLink matlabScope			Type
+HiLink matlabTransposeOperator	matlabOperator
+HiLink matlabOperator			Operator
+HiLink matlabLineContinuation		Special
+HiLink matlabLabel			Label
+HiLink matlabConditional		Conditional
+HiLink matlabExceptions		Conditional
+HiLink matlabRepeat			Repeat
+HiLink matlabTodo			Todo
+HiLink matlabString			String
+HiLink matlabDelimiter		Identifier
+HiLink matlabTransposeOther		Identifier
+HiLink matlabNumber			Number
+HiLink matlabFloat			Float
+HiLink matlabFunction			Function
+HiLink matlabError			Error
+HiLink matlabImplicit			matlabStatement
+HiLink matlabStatement		Statement
+HiLink matlabOO			Statement
+HiLink matlabSemicolon		SpecialChar
+HiLink matlabComment			Comment
+HiLink matlabMultilineComment		Comment
+HiLink matlabScope			Type
 
-  HiLink matlabArithmeticOperator	matlabOperator
-  HiLink matlabRelationalOperator	matlabOperator
-  HiLink matlabLogicalOperator		matlabOperator
+HiLink matlabArithmeticOperator	matlabOperator
+HiLink matlabRelationalOperator	matlabOperator
+HiLink matlabLogicalOperator		matlabOperator
 
 "optional highlighting
-  "HiLink matlabIdentifier		Identifier
-  "HiLink matlabTab			Error
+"HiLink matlabIdentifier		Identifier
+"HiLink matlabTab			Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "matlab"
 
diff --git a/runtime/syntax/maxima.vim b/runtime/syntax/maxima.vim
--- a/runtime/syntax/maxima.vim
+++ b/runtime/syntax/maxima.vim
@@ -6,11 +6,8 @@
 " Adapted mostly from xmath.vim
 " Number formats adapted from r.vim
 "
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -234,41 +231,33 @@ syn sync match maximaSyncComment	grouphe
 syn sync match maximaSyncComment	groupthere NONE "*/"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_maxima_syntax_inits")
-  if version < 508
-    let did_maxima_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink maximaBraceError	maximaError
-  HiLink maximaCmd	maximaStatement
-  HiLink maximaCurlyError	maximaError
-  HiLink maximaFuncCmd	maximaStatement
-  HiLink maximaParenError	maximaError
+HiLink maximaBraceError	maximaError
+HiLink maximaCmd	maximaStatement
+HiLink maximaCurlyError	maximaError
+HiLink maximaFuncCmd	maximaStatement
+HiLink maximaParenError	maximaError
 
-  " The default methods for highlighting.  Can be overridden later
-  HiLink maximaCharacter	Character
-  HiLink maximaComma	Function
-  HiLink maximaCommentBlock	Comment
-  HiLink maximaConditional	Conditional
-  HiLink maximaError	Error
-  HiLink maximaFunc	Delimiter
-  HiLink maximaOp                 Delimiter
-  HiLink maximaLabel	PreProc
-  HiLink maximaNumber	Number
-  HiLink maximaFloat	Float
-  HiLink maximaRepeat	Repeat
-  HiLink maximaSpecial	Type
-  HiLink maximaSpecialChar	SpecialChar
-  HiLink maximaStatement	Statement
-  HiLink maximaString	String
-  HiLink maximaTodo	Todo
+" The default methods for highlighting.  Can be overridden later
+HiLink maximaCharacter	Character
+HiLink maximaComma	Function
+HiLink maximaCommentBlock	Comment
+HiLink maximaConditional	Conditional
+HiLink maximaError	Error
+HiLink maximaFunc	Delimiter
+HiLink maximaOp                 Delimiter
+HiLink maximaLabel	PreProc
+HiLink maximaNumber	Number
+HiLink maximaFloat	Float
+HiLink maximaRepeat	Repeat
+HiLink maximaSpecial	Type
+HiLink maximaSpecialChar	SpecialChar
+HiLink maximaStatement	Statement
+HiLink maximaString	String
+HiLink maximaTodo	Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "maxima"
diff --git a/runtime/syntax/mel.vim b/runtime/syntax/mel.vim
--- a/runtime/syntax/mel.vim
+++ b/runtime/syntax/mel.vim
@@ -4,11 +4,8 @@
 " Last Change:	May 27 1999
 " Based on:	Bram Moolenaar <Bram@vim.org> C syntax file
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -77,45 +74,37 @@ endif
 exec "sy sync ccomment melComment minlines=" . mel_minlines
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_mel_syntax_inits")
-  if version < 508
-    let did_mel_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink melBoolean	Boolean
-  HiLink melFunction	Function
-  HiLink melIdentifier	Identifier
-  HiLink melStatement	Statement
-  HiLink melConditional Conditional
-  HiLink melRepeat	Repeat
-  HiLink melLabel	Label
-  HiLink melOperator	Operator
-  HiLink melKeyword	Keyword
-  HiLink melException	Exception
-  HiLink melInclude	Include
-  HiLink melType	Type
-  HiLink melStorageClass StorageClass
-  HiLink melDebug	Debug
-  HiLink melTodo	Todo
-  HiLink melCharSpecial SpecialChar
-  HiLink melString	String
-  HiLink melInteger	Number
-  HiLink melFloat	Float
-  HiLink melMatrixVector Float
-  HiLink melComment	Comment
-  HiLink melError	Error
-  HiLink melSpaceError	melError
-  HiLink melCharError	melError
-  HiLink melParenError	melError
-  HiLink melInParen	melError
-  HiLink melCommentError melError
+HiLink melBoolean	Boolean
+HiLink melFunction	Function
+HiLink melIdentifier	Identifier
+HiLink melStatement	Statement
+HiLink melConditional Conditional
+HiLink melRepeat	Repeat
+HiLink melLabel	Label
+HiLink melOperator	Operator
+HiLink melKeyword	Keyword
+HiLink melException	Exception
+HiLink melInclude	Include
+HiLink melType	Type
+HiLink melStorageClass StorageClass
+HiLink melDebug	Debug
+HiLink melTodo	Todo
+HiLink melCharSpecial SpecialChar
+HiLink melString	String
+HiLink melInteger	Number
+HiLink melFloat	Float
+HiLink melMatrixVector Float
+HiLink melComment	Comment
+HiLink melError	Error
+HiLink melSpaceError	melError
+HiLink melCharError	melError
+HiLink melParenError	melError
+HiLink melInParen	melError
+HiLink melCommentError melError
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "mel"
diff --git a/runtime/syntax/mf.vim b/runtime/syntax/mf.vim
--- a/runtime/syntax/mf.vim
+++ b/runtime/syntax/mf.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Andreas Scherer <andreas.scherer@pobox.com>
 " Last Change:	April 25, 2001
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -157,40 +154,32 @@ syn match mfComment	"%.*$"
 syn sync maxlines=50
 
 " Define the default highlighting
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_mf_syntax_inits")
-  if version < 508
-    let did_mf_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink mfBoolExp	Statement
-  HiLink mfNumExp	Statement
-  HiLink mfInternal	Identifier
-  HiLink mfPairExp	Statement
-  HiLink mfPathExp	Statement
-  HiLink mfPenExp	Statement
-  HiLink mfPicExp	Statement
-  HiLink mfStringExp	Statement
-  HiLink mfCommand	Statement
-  HiLink mfType	Type
-  HiLink mfStatement	Statement
-  HiLink mfDefinition	Statement
-  HiLink mfCondition	Conditional
-  HiLink mfPrimitive	Statement
-  HiLink mfMacro	Macro
-  HiLink mfCoord	Identifier
-  HiLink mfPoint	Identifier
-  HiLink mfNumeric	Number
-  HiLink mfLength	Number
-  HiLink mfComment	Comment
-  HiLink mfString	String
+HiLink mfBoolExp	Statement
+HiLink mfNumExp	Statement
+HiLink mfInternal	Identifier
+HiLink mfPairExp	Statement
+HiLink mfPathExp	Statement
+HiLink mfPenExp	Statement
+HiLink mfPicExp	Statement
+HiLink mfStringExp	Statement
+HiLink mfCommand	Statement
+HiLink mfType	Type
+HiLink mfStatement	Statement
+HiLink mfDefinition	Statement
+HiLink mfCondition	Conditional
+HiLink mfPrimitive	Statement
+HiLink mfMacro	Macro
+HiLink mfCoord	Identifier
+HiLink mfPoint	Identifier
+HiLink mfNumeric	Number
+HiLink mfLength	Number
+HiLink mfComment	Comment
+HiLink mfString	String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "mf"
 
diff --git a/runtime/syntax/mgl.vim b/runtime/syntax/mgl.vim
--- a/runtime/syntax/mgl.vim
+++ b/runtime/syntax/mgl.vim
@@ -6,9 +6,8 @@
 "
 " $Id: mgl.vim,v 1.1 2006/02/21 22:08:20 vimboss Exp $
 "
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -84,43 +83,35 @@ syn keyword mglPredefined	exception
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_mgl_syn_inits")
-  if version < 508
-    let did_mgl_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink mglBoolean		Boolean
-  HiLink mglComment		Comment
-  HiLink mglConditional		Conditional
-  HiLink mglConstant		Constant
-  HiLink mglException		Exception
-  HiLink mglFunction		Function
-  HiLink mglLabel		Label
-  HiLink mglMatrixDelimiter	Identifier
-  HiLink mglNumber		Number
-  HiLink mglHexNumber		Number
-  HiLink mglCharacter		Number
-  HiLink mglIpAddr		Number
-  HiLink mglOperator		Operator
-  HiLink mglPredefined		mglFunction
-  HiLink mglPreProc		PreProc
-  HiLink mglRepeat		Repeat
-  HiLink mglStatement		Statement
-  HiLink mglString		String
-  HiLink mglStringEscape	Special
-  HiLink mglStringEscapeGPC	Special
-  HiLink mglStringError		Error
-  HiLink mglStruct		mglStatement
-  HiLink mglSymbolOperator	mglOperator
-  HiLink mglType		Type
+HiLink mglBoolean		Boolean
+HiLink mglComment		Comment
+HiLink mglConditional		Conditional
+HiLink mglConstant		Constant
+HiLink mglException		Exception
+HiLink mglFunction		Function
+HiLink mglLabel		Label
+HiLink mglMatrixDelimiter	Identifier
+HiLink mglNumber		Number
+HiLink mglHexNumber		Number
+HiLink mglCharacter		Number
+HiLink mglIpAddr		Number
+HiLink mglOperator		Operator
+HiLink mglPredefined		mglFunction
+HiLink mglPreProc		PreProc
+HiLink mglRepeat		Repeat
+HiLink mglStatement		Statement
+HiLink mglString		String
+HiLink mglStringEscape	Special
+HiLink mglStringEscapeGPC	Special
+HiLink mglStringError		Error
+HiLink mglStruct		mglStatement
+HiLink mglSymbolOperator	mglOperator
+HiLink mglType		Type
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "mgl"
diff --git a/runtime/syntax/mgp.vim b/runtime/syntax/mgp.vim
--- a/runtime/syntax/mgp.vim
+++ b/runtime/syntax/mgp.vim
@@ -10,11 +10,8 @@
 " SPAM is _NOT_ welcome - be ready to be reported!
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -48,36 +45,27 @@ syn match mgpNoDefault +^%nodefault$+
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_mgp_syn_inits")
-  let did_mgp_syn_inits = 1
-  if version < 508
-    let did_mgp_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink mgpLineSkip	Special
 
-  HiLink mgpLineSkip	Special
+HiLink mgpHash	mgpComment
+HiLink mgpPercent	mgpComment
+HiLink mgpComment	Comment
+
+HiLink mgpCommand	Identifier
 
-  HiLink mgpHash	mgpComment
-  HiLink mgpPercent	mgpComment
-  HiLink mgpComment	Comment
+HiLink mgpLine	Type
 
-  HiLink mgpCommand	Identifier
-
-  HiLink mgpLine	Type
+HiLink mgpFile	String
+HiLink mgpSize	Number
+HiLink mgpValue	Number
 
-  HiLink mgpFile	String
-  HiLink mgpSize	Number
-  HiLink mgpValue	Number
+HiLink mgpPage	mgpDefine
+HiLink mgpNoDefault	mgpDefine
+HiLink mgpDefine	Define
 
-  HiLink mgpPage	mgpDefine
-  HiLink mgpNoDefault	mgpDefine
-  HiLink mgpDefine	Define
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "mgp"
diff --git a/runtime/syntax/mma.vim b/runtime/syntax/mma.vim
--- a/runtime/syntax/mma.vim
+++ b/runtime/syntax/mma.vim
@@ -35,9 +35,8 @@
 "   fix nesting
 "   finish populating popular symbols
 
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -283,47 +282,40 @@ syntax sync fromstart
 "set foldnestmax=1
 "set foldminlines=15
 
-if version >= 508 || !exists("did_mma_syn_inits")
-	if version < 508
-		let did_mma_syn_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+command -nargs=+ HiLink hi def link <args>
 
-    " NOTE - the following links are not guaranteed to
-    " look good under all colorschemes.  You might need to
-    " :so $VIMRUNTIME/syntax/hitest.vim and tweak these to
-    " look good in yours
+" NOTE - the following links are not guaranteed to
+" look good under all colorschemes.  You might need to
+" :so $VIMRUNTIME/syntax/hitest.vim and tweak these to
+" look good in yours
 
 
-    HiLink mmaComment           Comment
-    HiLink mmaCommentStar       Comment
-    HiLink mmaFunctionComment   Comment
-    HiLink mmaLooseQuote        Comment
-	HiLink mmaGenericFunction   Function
-	HiLink mmaVariable          Identifier
+HiLink mmaComment           Comment
+HiLink mmaCommentStar       Comment
+HiLink mmaFunctionComment   Comment
+HiLink mmaLooseQuote        Comment
+HiLink mmaGenericFunction   Function
+HiLink mmaVariable          Identifier
 "    HiLink mmaSymbol            Identifier
-	HiLink mmaOperator          Operator
-    HiLink mmaPatternOp         Operator
-	HiLink mmaPureFunction      Operator
-	HiLink mmaString            String
-    HiLink mmaCommentString     String
-	HiLink mmaUnicode           String
-	HiLink mmaMessage           Type
-    HiLink mmaNumber            Type
-	HiLink mmaPattern           Type
-	HiLink mmaError             Error
-	HiLink mmaFixme             Error
-    HiLink mmaPatternError      Error
-    HiLink mmaTodo              Todo
-    HiLink mmaemPHAsis          Special
-    HiLink mmaFunctionTitle     Special
-    HiLink mmaMessageType       Special
-    HiLink mmaItem              Preproc
+HiLink mmaOperator          Operator
+HiLink mmaPatternOp         Operator
+HiLink mmaPureFunction      Operator
+HiLink mmaString            String
+HiLink mmaCommentString     String
+HiLink mmaUnicode           String
+HiLink mmaMessage           Type
+HiLink mmaNumber            Type
+HiLink mmaPattern           Type
+HiLink mmaError             Error
+HiLink mmaFixme             Error
+HiLink mmaPatternError      Error
+HiLink mmaTodo              Todo
+HiLink mmaemPHAsis          Special
+HiLink mmaFunctionTitle     Special
+HiLink mmaMessageType       Special
+HiLink mmaItem              Preproc
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "mma"
 
diff --git a/runtime/syntax/mmix.vim b/runtime/syntax/mmix.vim
--- a/runtime/syntax/mmix.vim
+++ b/runtime/syntax/mmix.vim
@@ -9,9 +9,8 @@
 " Limitations:	Comments must start with either % or //
 "		(preferably %, Knuth-Style)
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -119,44 +118,36 @@ syn match mmixRegister		"r[A-Z]"
 syn keyword mmixRegister	rBB rTT rWW rXX rYY rZZ
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_mmix_syntax_inits")
-  if version < 508
-    let did_mmix_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting.  Can be overridden later
-  HiLink mmixAt		Type
-  HiLink mmixPseudo	Type
-  HiLink mmixRegister	Special
-  HiLink mmixSegments	Type
+" The default methods for highlighting.  Can be overridden later
+HiLink mmixAt		Type
+HiLink mmixPseudo	Type
+HiLink mmixRegister	Special
+HiLink mmixSegments	Type
+
+HiLink mmixLabel	Special
+HiLink mmixComment	Comment
+HiLink mmixOpcode	Keyword
 
-  HiLink mmixLabel	Special
-  HiLink mmixComment	Comment
-  HiLink mmixOpcode	Keyword
+HiLink hexNumber	Number
+HiLink decNumber	Number
+HiLink octNumber	Number
 
-  HiLink hexNumber	Number
-  HiLink decNumber	Number
-  HiLink octNumber	Number
-
-  HiLink mmixString	String
-  HiLink mmixChar	String
+HiLink mmixString	String
+HiLink mmixChar	String
 
-  HiLink mmixType	Type
-  HiLink mmixIdentifier	Normal
-  HiLink mmixSpecialComment Comment
+HiLink mmixType	Type
+HiLink mmixIdentifier	Normal
+HiLink mmixSpecialComment Comment
 
-  " My default color overrides:
-  " hi mmixSpecialComment ctermfg=red
-  "hi mmixLabel ctermfg=lightcyan
-  " hi mmixType ctermbg=black ctermfg=brown
+" My default color overrides:
+" hi mmixSpecialComment ctermfg=red
+"hi mmixLabel ctermfg=lightcyan
+" hi mmixType ctermbg=black ctermfg=brown
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "mmix"
 
diff --git a/runtime/syntax/mmp.vim b/runtime/syntax/mmp.vim
--- a/runtime/syntax/mmp.vim
+++ b/runtime/syntax/mmp.vim
@@ -5,11 +5,8 @@
 " URL: http://ronware.org/wiki/vim/mmp
 " Filetypes:	*.mmp
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -34,8 +31,7 @@ syn match   mmpNumber	"0x\x\+"
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
+" Only when an item doesn't have highlighting yet
 if !exists("did_mmp_syntax_inits")
   let did_mmp_syntax_inits=1
 
diff --git a/runtime/syntax/modsim3.vim b/runtime/syntax/modsim3.vim
--- a/runtime/syntax/modsim3.vim
+++ b/runtime/syntax/modsim3.vim
@@ -12,10 +12,8 @@
 "
 " very basic things only (based on the modula2 and c files).
 
-if version < 600
-  " Remove any old syntax stuff hanging around
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -77,31 +75,23 @@ syn region modsim3String start=+"+ end=+
 syn match modsim3Literal "'[^']'\|''''"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_modsim3_syntax_inits")
-  if version < 508
-    let did_modsim3_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting.  Can be overridden later
-  HiLink modsim3Keyword	Statement
-  HiLink modsim3Block		Statement
-  HiLink modsim3Comment1	Comment
-  HiLink modsim3Comment2	Comment
-  HiLink modsim3String		String
-  HiLink modsim3Literal	Character
-  HiLink modsim3Include	Statement
-  HiLink modsim3Type		Type
-  HiLink modsim3ParenError	Error
-  HiLink modsim3Builtin	Function
-  HiLink modsim3BuiltinNoParen	Function
+" The default methods for highlighting.  Can be overridden later
+HiLink modsim3Keyword	Statement
+HiLink modsim3Block		Statement
+HiLink modsim3Comment1	Comment
+HiLink modsim3Comment2	Comment
+HiLink modsim3String		String
+HiLink modsim3Literal	Character
+HiLink modsim3Include	Statement
+HiLink modsim3Type		Type
+HiLink modsim3ParenError	Error
+HiLink modsim3Builtin	Function
+HiLink modsim3BuiltinNoParen	Function
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "modsim3"
 
diff --git a/runtime/syntax/modula2.vim b/runtime/syntax/modula2.vim
--- a/runtime/syntax/modula2.vim
+++ b/runtime/syntax/modula2.vim
@@ -4,11 +4,8 @@
 "   based on original work of Bram Moolenaar <Bram@vim.org>
 " Last Change:	2001 May 09
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -54,32 +51,24 @@ syn region modula2String start="'" end="
 syn region modula2Set start="{" end="}"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_modula2_syntax_inits")
-  if version < 508
-    let did_modula2_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink modula2Ident		Identifier
-  HiLink modula2StdConst	Boolean
-  HiLink modula2Type		Identifier
-  HiLink modula2StdFunc		Identifier
-  HiLink modula2Header		Type
-  HiLink modula2Keyword		Statement
-  HiLink modula2AttKeyword	PreProc
-  HiLink modula2Comment		Comment
-  " The following is just a matter of taste (you want to try this instead):
-  " hi modula2Comment term=bold ctermfg=DarkBlue guifg=Blue gui=bold
-  HiLink modula2Todo		Todo
-  HiLink modula2String		String
-  HiLink modula2Set		String
+HiLink modula2Ident		Identifier
+HiLink modula2StdConst	Boolean
+HiLink modula2Type		Identifier
+HiLink modula2StdFunc		Identifier
+HiLink modula2Header		Type
+HiLink modula2Keyword		Statement
+HiLink modula2AttKeyword	PreProc
+HiLink modula2Comment		Comment
+" The following is just a matter of taste (you want to try this instead):
+" hi modula2Comment term=bold ctermfg=DarkBlue guifg=Blue gui=bold
+HiLink modula2Todo		Todo
+HiLink modula2String		String
+HiLink modula2Set		String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "modula2"
 
diff --git a/runtime/syntax/modula3.vim b/runtime/syntax/modula3.vim
--- a/runtime/syntax/modula3.vim
+++ b/runtime/syntax/modula3.vim
@@ -6,11 +6,8 @@
 " Basic things only...
 " Based on the modula 2 syntax file
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -46,24 +43,16 @@ syn region modula3String start=+"+ end=+
 syn region modula3String start=+'+ end=+'+
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_modula3_syntax_inits")
-  if version < 508
-    let did_modula3_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting.  Can be overridden later
-  HiLink modula3Keyword	Statement
-  HiLink modula3Block		PreProc
-  HiLink modula3Comment	Comment
-  HiLink modula3String		String
+" The default methods for highlighting.  Can be overridden later
+HiLink modula3Keyword	Statement
+HiLink modula3Block		PreProc
+HiLink modula3Comment	Comment
+HiLink modula3String		String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "modula3"
 
diff --git a/runtime/syntax/monk.vim b/runtime/syntax/monk.vim
--- a/runtime/syntax/monk.vim
+++ b/runtime/syntax/monk.vim
@@ -21,11 +21,8 @@
 
 " Initializing:
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -60,11 +57,7 @@ syn region monkUnquote matchgroup=Delimi
 
 " R5RS Scheme Functions and Syntax:
 
-if version < 600
-  set iskeyword=33,35-39,42-58,60-90,94,95,97-122,126,_
-else
-  setlocal iskeyword=33,35-39,42-58,60-90,94,95,97-122,126,_
-endif
+setlocal iskeyword=33,35-39,42-58,60-90,94,95,97-122,126,_
 
 syn keyword monkSyntax lambda and or if cond case define let let* letrec
 syn keyword monkSyntax begin do delay set! else =>
@@ -201,32 +194,24 @@ syn sync match matchPlace grouphere NONE
 " ... i.e. synchronize on a line that starts at the left margin
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_monk_syntax_inits")
-  if version < 508
-    let did_monk_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink monkSyntax		Statement
-  HiLink monkFunc		Function
+HiLink monkSyntax		Statement
+HiLink monkFunc		Function
 
-  HiLink monkString		String
-  HiLink monkChar		Character
-  HiLink monkNumber		Number
-  HiLink monkBoolean		Boolean
+HiLink monkString		String
+HiLink monkChar		Character
+HiLink monkNumber		Number
+HiLink monkBoolean		Boolean
 
-  HiLink monkDelimiter	Delimiter
-  HiLink monkConstant	Constant
+HiLink monkDelimiter	Delimiter
+HiLink monkConstant	Constant
 
-  HiLink monkComment		Comment
-  HiLink monkError		Error
+HiLink monkComment		Comment
+HiLink monkError		Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "monk"
 
diff --git a/runtime/syntax/moo.vim b/runtime/syntax/moo.vim
--- a/runtime/syntax/moo.vim
+++ b/runtime/syntax/moo.vim
@@ -4,8 +4,8 @@
 " Last Change:	2001 Oct 06
 " Note:		Requires Vim 6.0 or above
 
-" Quit when a syntax file was already loaded
-if version < 600 || exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/mp.vim b/runtime/syntax/mp.vim
--- a/runtime/syntax/mp.vim
+++ b/runtime/syntax/mp.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Andreas Scherer <andreas.scherer@pobox.com>
 " Last Change:	April 30, 2001
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -15,11 +12,7 @@ let plain_mf_macros = 0 " plain.mf has n
 let other_mf_macros = 0 " cmbase.mf, logo.mf, ... neither
 
 " Read the Metafont syntax to start with
-if version < 600
-  source <sfile>:p:h/mf.vim
-else
-  runtime! syntax/mf.vim
-endif
+runtime! syntax/mf.vim
 
 " MetaPost has TeX inserts for typeset labels
 " verbatimtex, btex, and etex will be treated as keywords
@@ -108,24 +101,16 @@ if other_mp_macros
 endif
 
 " Define the default highlighting
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_mp_syntax_inits")
-  if version < 508
-    let did_mp_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink mpTeXinsert	String
-  HiLink mpTeXbegin	Statement
-  HiLink mpTeXend	Statement
-  HiLink mpInternal	mfInternal
-  HiLink mpMacro	Macro
+HiLink mpTeXinsert	String
+HiLink mpTeXbegin	Statement
+HiLink mpTeXend	Statement
+HiLink mpInternal	mfInternal
+HiLink mpMacro	Macro
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "mp"
 
diff --git a/runtime/syntax/msidl.vim b/runtime/syntax/msidl.vim
--- a/runtime/syntax/msidl.vim
+++ b/runtime/syntax/msidl.vim
@@ -3,11 +3,8 @@
 " Maintainer:   Vadim Zeitlin <vadim@wxwindows.org>
 " Last Change:  2012 Feb 12 by Thilo Six
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -56,39 +53,31 @@ syn region  msidlSafeArray      start="S
 syn sync lines=50
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_msidl_syntax_inits")
-  if version < 508
-    let did_msidl_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink msidlInclude		Include
-  HiLink msidlPreProc		PreProc
-  HiLink msidlPreCondit		PreCondit
-  HiLink msidlDefine		Macro
-  HiLink msidlIncluded		String
-  HiLink msidlString		String
-  HiLink msidlComment		Comment
-  HiLink msidlTodo		Todo
-  HiLink msidlSpecial		SpecialChar
-  HiLink msidlLiteral		Number
-  HiLink msidlUUID		Number
+HiLink msidlInclude		Include
+HiLink msidlPreProc		PreProc
+HiLink msidlPreCondit		PreCondit
+HiLink msidlDefine		Macro
+HiLink msidlIncluded		String
+HiLink msidlString		String
+HiLink msidlComment		Comment
+HiLink msidlTodo		Todo
+HiLink msidlSpecial		SpecialChar
+HiLink msidlLiteral		Number
+HiLink msidlUUID		Number
 
-  HiLink msidlImport		Include
-  HiLink msidlEnum		StorageClass
-  HiLink msidlStruct		Structure
-  HiLink msidlTypedef		Typedef
-  HiLink msidlAttribute		StorageClass
+HiLink msidlImport		Include
+HiLink msidlEnum		StorageClass
+HiLink msidlStruct		Structure
+HiLink msidlTypedef		Typedef
+HiLink msidlAttribute		StorageClass
 
-  HiLink msidlStandardType	Type
-  HiLink msidlSafeArray		Type
+HiLink msidlStandardType	Type
+HiLink msidlSafeArray		Type
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "msidl"
 
diff --git a/runtime/syntax/msmessages.vim b/runtime/syntax/msmessages.vim
--- a/runtime/syntax/msmessages.vim
+++ b/runtime/syntax/msmessages.vim
@@ -7,11 +7,8 @@
 " See format description at <http://msdn2.microsoft.com/en-us/library/aa385646.aspx>
 " This file is based on the rc.vim and c.vim
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/msql.vim b/runtime/syntax/msql.vim
--- a/runtime/syntax/msql.vim
+++ b/runtime/syntax/msql.vim
@@ -8,11 +8,8 @@
 " Options	msql_sql_query = 1 for SQL syntax highligthing inside strings
 "		msql_minlines = x     to sync at least x lines backwards
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -20,12 +17,8 @@ if !exists("main_syntax")
   let main_syntax = 'msql'
 endif
 
-if version < 600
-  so <sfile>:p:h/html.vim
-else
-  runtime! syntax/html.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/html.vim
+unlet b:current_syntax
 
 syn cluster htmlPreproc add=msqlRegion
 
@@ -57,39 +50,31 @@ else
 endif
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_msql_syn_inits")
-  if version < 508
-    let did_msql_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink msqlComment		Comment
-  HiLink msqlString		String
-  HiLink msqlNumber		Number
-  HiLink msqlFloat		Float
-  HiLink msqlIdentifier	Identifier
-  HiLink msqlGlobalIdentifier	Identifier
-  HiLink msqlIntVar		Identifier
-  HiLink msqlEnvVar		Identifier
-  HiLink msqlFunctions		Function
-  HiLink msqlRepeat		Repeat
-  HiLink msqlConditional	Conditional
-  HiLink msqlStatement		Statement
-  HiLink msqlType		Type
-  HiLink msqlInclude		Include
-  HiLink msqlDefine		Define
-  HiLink msqlSpecialChar	SpecialChar
-  HiLink msqlParentError	Error
-  HiLink msqlTodo		Todo
-  HiLink msqlOperator		Operator
-  HiLink msqlRelation		Operator
+HiLink msqlComment		Comment
+HiLink msqlString		String
+HiLink msqlNumber		Number
+HiLink msqlFloat		Float
+HiLink msqlIdentifier	Identifier
+HiLink msqlGlobalIdentifier	Identifier
+HiLink msqlIntVar		Identifier
+HiLink msqlEnvVar		Identifier
+HiLink msqlFunctions		Function
+HiLink msqlRepeat		Repeat
+HiLink msqlConditional	Conditional
+HiLink msqlStatement		Statement
+HiLink msqlType		Type
+HiLink msqlInclude		Include
+HiLink msqlDefine		Define
+HiLink msqlSpecialChar	SpecialChar
+HiLink msqlParentError	Error
+HiLink msqlTodo		Todo
+HiLink msqlOperator		Operator
+HiLink msqlRelation		Operator
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "msql"
 
diff --git a/runtime/syntax/mupad.vim b/runtime/syntax/mupad.vim
--- a/runtime/syntax/mupad.vim
+++ b/runtime/syntax/mupad.vim
@@ -5,11 +5,8 @@
 " Date:        6/30/2004
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -268,28 +265,21 @@ syn keyword mupadIdentifier	Tubular
 " graphics  meta-documentation Attributes
 syn keyword mupadIdentifier	objectGroupsListed
 
-if version >= 508 || !exists("did_mupad_syntax_inits")
-  if version < 508
-    let did_mupad_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink mupadComment		Comment
-  HiLink mupadString		String
-  HiLink mupadOperator		Operator
-  HiLink mupadSpecial		Special
-  HiLink mupadStatement		Statement
-  HiLink mupadUnderlined	Underlined
-  HiLink mupadConditional	Conditional
-  HiLink mupadRepeat		Repeat
-  HiLink mupadFunction		Function
-  HiLink mupadType		Type
-  HiLink mupadDefine		Define
-  HiLink mupadIdentifier	Identifier
+HiLink mupadComment		Comment
+HiLink mupadString		String
+HiLink mupadOperator		Operator
+HiLink mupadSpecial		Special
+HiLink mupadStatement		Statement
+HiLink mupadUnderlined	Underlined
+HiLink mupadConditional	Conditional
+HiLink mupadRepeat		Repeat
+HiLink mupadFunction		Function
+HiLink mupadType		Type
+HiLink mupadDefine		Define
+HiLink mupadIdentifier	Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 " TODO  More comprehensive listing.
diff --git a/runtime/syntax/mush.vim b/runtime/syntax/mush.vim
--- a/runtime/syntax/mush.vim
+++ b/runtime/syntax/mush.vim
@@ -3,11 +3,8 @@
 " Based on vim Syntax file by: Bek Oberin <gossamer@tertius.net.au>
 " Last Updated: Fri Nov 04 20:28:15 2005
 "
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -185,42 +182,35 @@ syntax keyword mushAttribute use va vb v
 syntax keyword mushAttribute vo vp vq vr vs vt vu vv vw vx vy vz
 
 
-if version >= 508 || !exists("did_mush_syntax_inits")
-  if version < 508
-    let did_mush_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting.  Can be overridden later
-  HiLink mushAttribute  Constant
-  HiLink mushCommand    Function
-  HiLink mushNumber     Number
-  HiLink mushSetting    PreProc
-  HiLink mushFunction   Statement
-  HiLink mushVariable   Identifier
-  HiLink mushSpecial    Special
-  HiLink mushTodo       Todo
-  HiLink mushFlag       Special
-  HiLink mushIdentifier Identifier
-  HiLink mushDefine     Macro
-  HiLink mushPreProc    PreProc
-  HiLink mushPreProcGroup PreProc 
-  HiLink mushPreCondit PreCondit
-  HiLink mushIncluded cString
-  HiLink  mushInclude Include
+" The default methods for highlighting.  Can be overridden later
+HiLink mushAttribute  Constant
+HiLink mushCommand    Function
+HiLink mushNumber     Number
+HiLink mushSetting    PreProc
+HiLink mushFunction   Statement
+HiLink mushVariable   Identifier
+HiLink mushSpecial    Special
+HiLink mushTodo       Todo
+HiLink mushFlag       Special
+HiLink mushIdentifier Identifier
+HiLink mushDefine     Macro
+HiLink mushPreProc    PreProc
+HiLink mushPreProcGroup PreProc 
+HiLink mushPreCondit PreCondit
+HiLink mushIncluded cString
+HiLink  mushInclude Include
 
 
 
 " Comments
-  HiLink mushCommentStart mushComment
-  HiLink mushComment    Comment
-  HiLink mushCommentString mushString
+HiLink mushCommentStart mushComment
+HiLink mushComment    Comment
+HiLink mushCommentString mushString
 
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "mush"
 
diff --git a/runtime/syntax/muttrc.vim b/runtime/syntax/muttrc.vim
--- a/runtime/syntax/muttrc.vim
+++ b/runtime/syntax/muttrc.vim
@@ -6,11 +6,8 @@
 
 " This file covers mutt version 1.7.0
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -18,11 +15,7 @@ let s:cpo_save = &cpo
 set cpo&vim
 
 " Set the keyword characters
-if version < 600
-  set isk=@,48-57,_,-
-else
-  setlocal isk=@,48-57,_,-
-endif
+setlocal isk=@,48-57,_,-
 
 " handling optional variables
 if !exists("use_mutt_sidebar")
@@ -636,160 +629,152 @@ syn keyword muttrcMono		contained mono		
 syn match   muttrcMonoLine	"^\s*mono\s\+\S\+"	skipwhite nextgroup=muttrcMonoAttrib contains=muttrcMono
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_muttrc_syntax_inits")
-  if version < 508
-    let did_muttrc_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink muttrcComment		Comment
-  HiLink muttrcEscape		SpecialChar
-  HiLink muttrcRXChars		SpecialChar
-  HiLink muttrcString		String
-  HiLink muttrcRXString		String
-  HiLink muttrcRXString2	String
-  HiLink muttrcSpecial		Special
-  HiLink muttrcHooks		Type
-  HiLink muttrcGroupFlag	Type
-  HiLink muttrcGroupDef		Macro
-  HiLink muttrcAddrDef		muttrcGroupFlag
-  HiLink muttrcRXDef		muttrcGroupFlag
-  HiLink muttrcRXPat		String
-  HiLink muttrcAliasGroupName	Macro
-  HiLink muttrcAliasKey	        Identifier
-  HiLink muttrcUnAliasKey	Identifier
-  HiLink muttrcAliasEncEmail	Identifier
-  HiLink muttrcAliasParens	Type
-  HiLink muttrcSetNumAssignment	Number
-  HiLink muttrcSetBoolAssignment	Boolean
-  HiLink muttrcSetQuadAssignment	Boolean
-  HiLink muttrcSetStrAssignment	String
-  HiLink muttrcEmail		Special
-  HiLink muttrcVariableInner	Special
-  HiLink muttrcEscapedVariable	String
-  HiLink muttrcHeader		Type
-  HiLink muttrcKeySpecial	SpecialChar
-  HiLink muttrcKey		Type
-  HiLink muttrcKeyName		SpecialChar
-  HiLink muttrcVarBool		Identifier
-  HiLink muttrcVarQuad		Identifier
-  HiLink muttrcVarNum		Identifier
-  HiLink muttrcVarStr		Identifier
-  HiLink muttrcMenu		Identifier
-  HiLink muttrcCommand		Keyword
-  HiLink muttrcMacroDescr	String
-  HiLink muttrcAction		Macro
-  HiLink muttrcBadAction	Error
-  HiLink muttrcBindFunction	Error
-  HiLink muttrcBindMenuList	Error
-  HiLink muttrcFunction		Macro
-  HiLink muttrcGroupKeyword	muttrcCommand
-  HiLink muttrcGroupLine	Error
-  HiLink muttrcSubscribeKeyword	muttrcCommand
-  HiLink muttrcSubscribeLine	Error
-  HiLink muttrcListsKeyword	muttrcCommand
-  HiLink muttrcListsLine	Error
-  HiLink muttrcAlternateKeyword	muttrcCommand
-  HiLink muttrcAlternatesLine	Error
-  HiLink muttrcAttachmentsLine	muttrcCommand
-  HiLink muttrcAttachmentsFlag	Type
-  HiLink muttrcAttachmentsMimeType	String
-  HiLink muttrcColorLine	Error
-  HiLink muttrcColorContext	Error
-  HiLink muttrcColorContextI	Identifier
-  HiLink muttrcColorContextH	Identifier
-  HiLink muttrcColorKeyword	muttrcCommand
-  HiLink muttrcColorKeywordI	muttrcColorKeyword
-  HiLink muttrcColorKeywordH	muttrcColorKeyword
-  HiLink muttrcColorField	Identifier
-  HiLink muttrcColor		Type
-  HiLink muttrcColorFG		Error
-  HiLink muttrcColorFGI		Error
-  HiLink muttrcColorFGH		Error
-  HiLink muttrcColorBG		Error
-  HiLink muttrcColorBGI		Error
-  HiLink muttrcColorBGH		Error
-  HiLink muttrcMonoAttrib	muttrcColor
-  HiLink muttrcMono		muttrcCommand
-  HiLink muttrcSimplePat	Identifier
-  HiLink muttrcSimplePatString	Macro
-  HiLink muttrcSimplePatMetas	Special
-  HiLink muttrcPattern		Error
-  HiLink muttrcUnColorLine	Error
-  HiLink muttrcUnColorKeyword	muttrcCommand
-  HiLink muttrcUnColorIndex	Identifier
-  HiLink muttrcShellString	muttrcEscape
-  HiLink muttrcRXHooks		muttrcCommand
-  HiLink muttrcRXHookNot	Type
-  HiLink muttrcPatHooks		muttrcCommand
-  HiLink muttrcPatHookNot	Type
-  HiLink muttrcFormatConditionals2 Type
-  HiLink muttrcIndexFormatStr	muttrcString
-  HiLink muttrcIndexFormatEscapes muttrcEscape
-  HiLink muttrcIndexFormatConditionals muttrcFormatConditionals2
-  HiLink muttrcAliasFormatStr	muttrcString
-  HiLink muttrcAliasFormatEscapes muttrcEscape
-  HiLink muttrcAttachFormatStr	muttrcString
-  HiLink muttrcAttachFormatEscapes muttrcEscape
-  HiLink muttrcAttachFormatConditionals muttrcFormatConditionals2
-  HiLink muttrcComposeFormatStr	muttrcString
-  HiLink muttrcComposeFormatEscapes muttrcEscape
-  HiLink muttrcFolderFormatStr	muttrcString
-  HiLink muttrcFolderFormatEscapes muttrcEscape
-  HiLink muttrcFolderFormatConditionals muttrcFormatConditionals2
-  HiLink muttrcMixFormatStr	muttrcString
-  HiLink muttrcMixFormatEscapes muttrcEscape
-  HiLink muttrcMixFormatConditionals muttrcFormatConditionals2
-  HiLink muttrcPGPFormatStr	muttrcString
-  HiLink muttrcPGPFormatEscapes muttrcEscape
-  HiLink muttrcPGPFormatConditionals muttrcFormatConditionals2
-  HiLink muttrcPGPCmdFormatStr	muttrcString
-  HiLink muttrcPGPCmdFormatEscapes muttrcEscape
-  HiLink muttrcPGPCmdFormatConditionals muttrcFormatConditionals2
-  HiLink muttrcStatusFormatStr	muttrcString
-  HiLink muttrcStatusFormatEscapes muttrcEscape
-  HiLink muttrcStatusFormatConditionals muttrcFormatConditionals2
-  HiLink muttrcPGPGetKeysFormatStr	muttrcString
-  HiLink muttrcPGPGetKeysFormatEscapes muttrcEscape
-  HiLink muttrcSmimeFormatStr	muttrcString
-  HiLink muttrcSmimeFormatEscapes muttrcEscape
-  HiLink muttrcSmimeFormatConditionals muttrcFormatConditionals2
-  HiLink muttrcTimeEscapes	muttrcEscape
-  HiLink muttrcPGPTimeEscapes	muttrcEscape
-  HiLink muttrcStrftimeEscapes	Type
-  HiLink muttrcStrftimeFormatStr muttrcString
-  HiLink muttrcFormatErrors Error
+HiLink muttrcComment		Comment
+HiLink muttrcEscape		SpecialChar
+HiLink muttrcRXChars		SpecialChar
+HiLink muttrcString		String
+HiLink muttrcRXString		String
+HiLink muttrcRXString2	String
+HiLink muttrcSpecial		Special
+HiLink muttrcHooks		Type
+HiLink muttrcGroupFlag	Type
+HiLink muttrcGroupDef		Macro
+HiLink muttrcAddrDef		muttrcGroupFlag
+HiLink muttrcRXDef		muttrcGroupFlag
+HiLink muttrcRXPat		String
+HiLink muttrcAliasGroupName	Macro
+HiLink muttrcAliasKey	        Identifier
+HiLink muttrcUnAliasKey	Identifier
+HiLink muttrcAliasEncEmail	Identifier
+HiLink muttrcAliasParens	Type
+HiLink muttrcSetNumAssignment	Number
+HiLink muttrcSetBoolAssignment	Boolean
+HiLink muttrcSetQuadAssignment	Boolean
+HiLink muttrcSetStrAssignment	String
+HiLink muttrcEmail		Special
+HiLink muttrcVariableInner	Special
+HiLink muttrcEscapedVariable	String
+HiLink muttrcHeader		Type
+HiLink muttrcKeySpecial	SpecialChar
+HiLink muttrcKey		Type
+HiLink muttrcKeyName		SpecialChar
+HiLink muttrcVarBool		Identifier
+HiLink muttrcVarQuad		Identifier
+HiLink muttrcVarNum		Identifier
+HiLink muttrcVarStr		Identifier
+HiLink muttrcMenu		Identifier
+HiLink muttrcCommand		Keyword
+HiLink muttrcMacroDescr	String
+HiLink muttrcAction		Macro
+HiLink muttrcBadAction	Error
+HiLink muttrcBindFunction	Error
+HiLink muttrcBindMenuList	Error
+HiLink muttrcFunction		Macro
+HiLink muttrcGroupKeyword	muttrcCommand
+HiLink muttrcGroupLine	Error
+HiLink muttrcSubscribeKeyword	muttrcCommand
+HiLink muttrcSubscribeLine	Error
+HiLink muttrcListsKeyword	muttrcCommand
+HiLink muttrcListsLine	Error
+HiLink muttrcAlternateKeyword	muttrcCommand
+HiLink muttrcAlternatesLine	Error
+HiLink muttrcAttachmentsLine	muttrcCommand
+HiLink muttrcAttachmentsFlag	Type
+HiLink muttrcAttachmentsMimeType	String
+HiLink muttrcColorLine	Error
+HiLink muttrcColorContext	Error
+HiLink muttrcColorContextI	Identifier
+HiLink muttrcColorContextH	Identifier
+HiLink muttrcColorKeyword	muttrcCommand
+HiLink muttrcColorKeywordI	muttrcColorKeyword
+HiLink muttrcColorKeywordH	muttrcColorKeyword
+HiLink muttrcColorField	Identifier
+HiLink muttrcColor		Type
+HiLink muttrcColorFG		Error
+HiLink muttrcColorFGI		Error
+HiLink muttrcColorFGH		Error
+HiLink muttrcColorBG		Error
+HiLink muttrcColorBGI		Error
+HiLink muttrcColorBGH		Error
+HiLink muttrcMonoAttrib	muttrcColor
+HiLink muttrcMono		muttrcCommand
+HiLink muttrcSimplePat	Identifier
+HiLink muttrcSimplePatString	Macro
+HiLink muttrcSimplePatMetas	Special
+HiLink muttrcPattern		Error
+HiLink muttrcUnColorLine	Error
+HiLink muttrcUnColorKeyword	muttrcCommand
+HiLink muttrcUnColorIndex	Identifier
+HiLink muttrcShellString	muttrcEscape
+HiLink muttrcRXHooks		muttrcCommand
+HiLink muttrcRXHookNot	Type
+HiLink muttrcPatHooks		muttrcCommand
+HiLink muttrcPatHookNot	Type
+HiLink muttrcFormatConditionals2 Type
+HiLink muttrcIndexFormatStr	muttrcString
+HiLink muttrcIndexFormatEscapes muttrcEscape
+HiLink muttrcIndexFormatConditionals muttrcFormatConditionals2
+HiLink muttrcAliasFormatStr	muttrcString
+HiLink muttrcAliasFormatEscapes muttrcEscape
+HiLink muttrcAttachFormatStr	muttrcString
+HiLink muttrcAttachFormatEscapes muttrcEscape
+HiLink muttrcAttachFormatConditionals muttrcFormatConditionals2
+HiLink muttrcComposeFormatStr	muttrcString
+HiLink muttrcComposeFormatEscapes muttrcEscape
+HiLink muttrcFolderFormatStr	muttrcString
+HiLink muttrcFolderFormatEscapes muttrcEscape
+HiLink muttrcFolderFormatConditionals muttrcFormatConditionals2
+HiLink muttrcMixFormatStr	muttrcString
+HiLink muttrcMixFormatEscapes muttrcEscape
+HiLink muttrcMixFormatConditionals muttrcFormatConditionals2
+HiLink muttrcPGPFormatStr	muttrcString
+HiLink muttrcPGPFormatEscapes muttrcEscape
+HiLink muttrcPGPFormatConditionals muttrcFormatConditionals2
+HiLink muttrcPGPCmdFormatStr	muttrcString
+HiLink muttrcPGPCmdFormatEscapes muttrcEscape
+HiLink muttrcPGPCmdFormatConditionals muttrcFormatConditionals2
+HiLink muttrcStatusFormatStr	muttrcString
+HiLink muttrcStatusFormatEscapes muttrcEscape
+HiLink muttrcStatusFormatConditionals muttrcFormatConditionals2
+HiLink muttrcPGPGetKeysFormatStr	muttrcString
+HiLink muttrcPGPGetKeysFormatEscapes muttrcEscape
+HiLink muttrcSmimeFormatStr	muttrcString
+HiLink muttrcSmimeFormatEscapes muttrcEscape
+HiLink muttrcSmimeFormatConditionals muttrcFormatConditionals2
+HiLink muttrcTimeEscapes	muttrcEscape
+HiLink muttrcPGPTimeEscapes	muttrcEscape
+HiLink muttrcStrftimeEscapes	Type
+HiLink muttrcStrftimeFormatStr muttrcString
+HiLink muttrcFormatErrors Error
 
-  HiLink muttrcBindFunctionNL	SpecialChar
-  HiLink muttrcBindKeyNL	SpecialChar
-  HiLink muttrcBindMenuListNL	SpecialChar
-  HiLink muttrcMacroDescrNL	SpecialChar
-  HiLink muttrcMacroBodyNL	SpecialChar
-  HiLink muttrcMacroKeyNL	SpecialChar
-  HiLink muttrcMacroMenuListNL	SpecialChar
-  HiLink muttrcColorMatchCountNL SpecialChar
-  HiLink muttrcColorNL		SpecialChar
-  HiLink muttrcColorRXNL	SpecialChar
-  HiLink muttrcColorBGNL	SpecialChar
-  HiLink muttrcColorFGNL	SpecialChar
-  HiLink muttrcAliasNameNL	SpecialChar
-  HiLink muttrcAliasENNL	SpecialChar
-  HiLink muttrcAliasNL		SpecialChar
-  HiLink muttrcUnAliasNL	SpecialChar
-  HiLink muttrcAliasGroupDefNL	SpecialChar
-  HiLink muttrcAliasEncEmailNL	SpecialChar
-  HiLink muttrcPatternNL	SpecialChar
-  HiLink muttrcUnColorPatNL	SpecialChar
-  HiLink muttrcUnColorAPNL	SpecialChar
-  HiLink muttrcUnColorIndexNL	SpecialChar
-  HiLink muttrcStringNL		SpecialChar
+HiLink muttrcBindFunctionNL	SpecialChar
+HiLink muttrcBindKeyNL	SpecialChar
+HiLink muttrcBindMenuListNL	SpecialChar
+HiLink muttrcMacroDescrNL	SpecialChar
+HiLink muttrcMacroBodyNL	SpecialChar
+HiLink muttrcMacroKeyNL	SpecialChar
+HiLink muttrcMacroMenuListNL	SpecialChar
+HiLink muttrcColorMatchCountNL SpecialChar
+HiLink muttrcColorNL		SpecialChar
+HiLink muttrcColorRXNL	SpecialChar
+HiLink muttrcColorBGNL	SpecialChar
+HiLink muttrcColorFGNL	SpecialChar
+HiLink muttrcAliasNameNL	SpecialChar
+HiLink muttrcAliasENNL	SpecialChar
+HiLink muttrcAliasNL		SpecialChar
+HiLink muttrcUnAliasNL	SpecialChar
+HiLink muttrcAliasGroupDefNL	SpecialChar
+HiLink muttrcAliasEncEmailNL	SpecialChar
+HiLink muttrcPatternNL	SpecialChar
+HiLink muttrcUnColorPatNL	SpecialChar
+HiLink muttrcUnColorAPNL	SpecialChar
+HiLink muttrcUnColorIndexNL	SpecialChar
+HiLink muttrcStringNL		SpecialChar
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "muttrc"
 
diff --git a/runtime/syntax/mysql.vim b/runtime/syntax/mysql.vim
--- a/runtime/syntax/mysql.vim
+++ b/runtime/syntax/mysql.vim
@@ -6,11 +6,8 @@
 " URL:          ftp://cedar-solutions.com/software/mysql.vim
 " Note:         The definitions below are taken from the mysql user manual as of April 2002, for version 3.23
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -273,29 +270,21 @@ syn region mysqlFunction         start="
 syn region mysqlFunction         start="yearweek(" end=")" contains=ALL
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_mysql_syn_inits")
-  if version < 508
-    let did_mysql_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink mysqlKeyword            Statement
-  HiLink mysqlSpecial            Special
-  HiLink mysqlString             String
-  HiLink mysqlNumber             Number
-  HiLink mysqlVariable           Identifier
-  HiLink mysqlComment            Comment
-  HiLink mysqlType               Type
-  HiLink mysqlOperator           Statement
-  HiLink mysqlFlow               Statement
-  HiLink mysqlFunction           Function
+HiLink mysqlKeyword            Statement
+HiLink mysqlSpecial            Special
+HiLink mysqlString             String
+HiLink mysqlNumber             Number
+HiLink mysqlVariable           Identifier
+HiLink mysqlComment            Comment
+HiLink mysqlType               Type
+HiLink mysqlOperator           Statement
+HiLink mysqlFlow               Statement
+HiLink mysqlFunction           Function
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "mysql"
 
diff --git a/runtime/syntax/named.vim b/runtime/syntax/named.vim
--- a/runtime/syntax/named.vim
+++ b/runtime/syntax/named.vim
@@ -11,25 +11,16 @@
 " This file could do with a lot of improvements, so comments are welcome.
 " Please submit the named.conf (segment) with any comments.
 "
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 syn case match
 
-if version >= 600
-  setlocal iskeyword=.,-,48-58,A-Z,a-z,_
-else
-  set iskeyword=.,-,48-58,A-Z,a-z,_
-endif
+setlocal iskeyword=.,-,48-58,A-Z,a-z,_
 
-if version >= 600
-  syn sync match namedSync grouphere NONE "^(zone|controls|acl|key)"
-endif
+syn sync match namedSync grouphere NONE "^(zone|controls|acl|key)"
 
 let s:save_cpo = &cpo
 set cpo-=C
@@ -197,48 +188,40 @@ syn match	namedEParenError	contained +{+
 syn match	namedParenError	+}\([^;]\|$\)+
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_named_syn_inits")
-  if version < 508
-    let did_named_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink namedComment	Comment
-  HiLink namedInclude	Include
-  HiLink namedKeyword	Keyword
-  HiLink namedIntKeyword	Keyword
-  HiLink namedIdentifier	Identifier
-  HiLink namedIntIdent	Identifier
+HiLink namedComment	Comment
+HiLink namedInclude	Include
+HiLink namedKeyword	Keyword
+HiLink namedIntKeyword	Keyword
+HiLink namedIdentifier	Identifier
+HiLink namedIntIdent	Identifier
+
+HiLink namedString	String
+HiLink namedBool	Type
+HiLink namedNotBool	Error
+HiLink namedNumber	Number
+HiLink namedNotNumber	Error
 
-  HiLink namedString	String
-  HiLink namedBool	Type
-  HiLink namedNotBool	Error
-  HiLink namedNumber	Number
-  HiLink namedNotNumber	Error
+HiLink namedOption	namedKeyword
+HiLink namedLogOption	namedKeyword
+HiLink namedCNOption	namedKeyword
+HiLink namedQSKeywords	Type
+HiLink namedCNKeywords	Type
+HiLink namedLogCategory	Type
+HiLink namedIPaddr	Number
+HiLink namedDomain	Identifier
+HiLink namedZoneOpt	namedKeyword
+HiLink namedZoneType	Type
+HiLink namedParenError	Error
+HiLink namedEParenError	Error
+HiLink namedIllegalDom	Error
+HiLink namedIPerror	Error
+HiLink namedSpareDot	Error
+HiLink namedError	Error
 
-  HiLink namedOption	namedKeyword
-  HiLink namedLogOption	namedKeyword
-  HiLink namedCNOption	namedKeyword
-  HiLink namedQSKeywords	Type
-  HiLink namedCNKeywords	Type
-  HiLink namedLogCategory	Type
-  HiLink namedIPaddr	Number
-  HiLink namedDomain	Identifier
-  HiLink namedZoneOpt	namedKeyword
-  HiLink namedZoneType	Type
-  HiLink namedParenError	Error
-  HiLink namedEParenError	Error
-  HiLink namedIllegalDom	Error
-  HiLink namedIPerror	Error
-  HiLink namedSpareDot	Error
-  HiLink namedError	Error
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let &cpo = s:save_cpo
 unlet s:save_cpo
diff --git a/runtime/syntax/nasm.vim b/runtime/syntax/nasm.vim
--- a/runtime/syntax/nasm.vim
+++ b/runtime/syntax/nasm.vim
@@ -9,10 +9,8 @@
 
 
 " Setup Syntax:
-"  Clear old syntax settings
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 "  Assembler syntax is case insensetive
@@ -21,18 +19,10 @@ syn case ignore
 
 
 " Vim search and movement commands on identifers
-if version < 600
-  "  Comments at start of a line inside which to skip search for indentifiers
-  set comments=:;
-  "  Identifier Keyword characters (defines \k)
-  set iskeyword=@,48-57,#,$,.,?,@-@,_,~
-else
-  "  Comments at start of a line inside which to skip search for indentifiers
-  setlocal comments=:;
-  "  Identifier Keyword characters (defines \k)
-  setlocal iskeyword=@,48-57,#,$,.,?,@-@,_,~
-endif
-
+"  Comments at start of a line inside which to skip search for indentifiers
+setlocal comments=:;
+"  Identifier Keyword characters (defines \k)
+setlocal iskeyword=@,48-57,#,$,.,?,@-@,_,~
 
 
 " Comments:
@@ -431,96 +421,88 @@ syn sync match	nasmSync	grouphere NONE	 
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later  : only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_nasm_syntax_inits")
-  if version < 508
-    let did_nasm_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+" Sub Links:
+HiLink nasmInMacDirective	nasmDirective
+HiLink nasmInMacLabel		nasmLocalLabel
+HiLink nasmInMacLblWarn	nasmLabelWarn
+HiLink nasmInMacMacro		nasmMacro
+HiLink nasmInMacParam		nasmMacro
+HiLink nasmInMacParamNum	nasmDecNumber
+HiLink nasmInMacPreCondit	nasmPreCondit
+HiLink nasmInMacPreProc	nasmPreProc
+HiLink nasmInPreCondit	nasmPreCondit
+HiLink nasmInStructure	nasmStructure
+HiLink nasmStructureLabel	nasmStructure
 
-  " Sub Links:
-  HiLink nasmInMacDirective	nasmDirective
-  HiLink nasmInMacLabel		nasmLocalLabel
-  HiLink nasmInMacLblWarn	nasmLabelWarn
-  HiLink nasmInMacMacro		nasmMacro
-  HiLink nasmInMacParam		nasmMacro
-  HiLink nasmInMacParamNum	nasmDecNumber
-  HiLink nasmInMacPreCondit	nasmPreCondit
-  HiLink nasmInMacPreProc	nasmPreProc
-  HiLink nasmInPreCondit	nasmPreCondit
-  HiLink nasmInStructure	nasmStructure
-  HiLink nasmStructureLabel	nasmStructure
+" Comment Group:
+HiLink nasmComment		Comment
+HiLink nasmSpecialComment	SpecialComment
+HiLink nasmInCommentTodo	Todo
 
-  " Comment Group:
-  HiLink nasmComment		Comment
-  HiLink nasmSpecialComment	SpecialComment
-  HiLink nasmInCommentTodo	Todo
+" Constant Group:
+HiLink nasmString		String
+HiLink nasmStringError	Error
+HiLink nasmBinNumber		Number
+HiLink nasmOctNumber		Number
+HiLink nasmDecNumber		Number
+HiLink nasmHexNumber		Number
+HiLink nasmFltNumber		Float
+HiLink nasmNumberError	Error
 
-  " Constant Group:
-  HiLink nasmString		String
-  HiLink nasmStringError	Error
-  HiLink nasmBinNumber		Number
-  HiLink nasmOctNumber		Number
-  HiLink nasmDecNumber		Number
-  HiLink nasmHexNumber		Number
-  HiLink nasmFltNumber		Float
-  HiLink nasmNumberError	Error
-
-  " Identifier Group:
-  HiLink nasmLabel		Identifier
-  HiLink nasmLocalLabel		Identifier
-  HiLink nasmSpecialLabel	Special
-  HiLink nasmLabelError		Error
-  HiLink nasmLabelWarn		Todo
+" Identifier Group:
+HiLink nasmLabel		Identifier
+HiLink nasmLocalLabel		Identifier
+HiLink nasmSpecialLabel	Special
+HiLink nasmLabelError		Error
+HiLink nasmLabelWarn		Todo
 
-  " PreProc Group:
-  HiLink nasmPreProc		PreProc
-  HiLink nasmDefine		Define
-  HiLink nasmInclude		Include
-  HiLink nasmMacro		Macro
-  HiLink nasmPreCondit		PreCondit
-  HiLink nasmPreProcError	Error
-  HiLink nasmPreProcWarn	Todo
+" PreProc Group:
+HiLink nasmPreProc		PreProc
+HiLink nasmDefine		Define
+HiLink nasmInclude		Include
+HiLink nasmMacro		Macro
+HiLink nasmPreCondit		PreCondit
+HiLink nasmPreProcError	Error
+HiLink nasmPreProcWarn	Todo
 
-  " Type Group:
-  HiLink nasmType		Type
-  HiLink nasmStorage		StorageClass
-  HiLink nasmStructure		Structure
-  HiLink nasmTypeError		Error
-
-  " Directive Group:
-  HiLink nasmConstant		Constant
-  HiLink nasmInstrModifier	Operator
-  HiLink nasmRepeat		Repeat
-  HiLink nasmDirective		Keyword
-  HiLink nasmStdDirective	Operator
-  HiLink nasmFmtDirective	Keyword
+" Type Group:
+HiLink nasmType		Type
+HiLink nasmStorage		StorageClass
+HiLink nasmStructure		Structure
+HiLink nasmTypeError		Error
 
-  " Register Group:
-  HiLink nasmCtrlRegister	Special
-  HiLink nasmDebugRegister	Debug
-  HiLink nasmTestRegister	Special
-  HiLink nasmRegisterError	Error
-  HiLink nasmMemRefError	Error
+" Directive Group:
+HiLink nasmConstant		Constant
+HiLink nasmInstrModifier	Operator
+HiLink nasmRepeat		Repeat
+HiLink nasmDirective		Keyword
+HiLink nasmStdDirective	Operator
+HiLink nasmFmtDirective	Keyword
+
+" Register Group:
+HiLink nasmCtrlRegister	Special
+HiLink nasmDebugRegister	Debug
+HiLink nasmTestRegister	Special
+HiLink nasmRegisterError	Error
+HiLink nasmMemRefError	Error
 
-  " Instruction Group:
-  HiLink nasmStdInstruction	Statement
-  HiLink nasmSysInstruction	Statement
-  HiLink nasmDbgInstruction	Debug
-  HiLink nasmFpuInstruction	Statement
-  HiLink nasmMmxInstruction	Statement
-  HiLink nasmSseInstruction	Statement
-  HiLink nasmNowInstruction	Statement
-  HiLink nasmAmdInstruction	Special
-  HiLink nasmCrxInstruction	Special
-  HiLink nasmUndInstruction	Todo
-  HiLink nasmInstructnError	Error
+" Instruction Group:
+HiLink nasmStdInstruction	Statement
+HiLink nasmSysInstruction	Statement
+HiLink nasmDbgInstruction	Debug
+HiLink nasmFpuInstruction	Statement
+HiLink nasmMmxInstruction	Statement
+HiLink nasmSseInstruction	Statement
+HiLink nasmNowInstruction	Statement
+HiLink nasmAmdInstruction	Special
+HiLink nasmCrxInstruction	Special
+HiLink nasmUndInstruction	Todo
+HiLink nasmInstructnError	Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "nasm"
 
diff --git a/runtime/syntax/nastran.vim b/runtime/syntax/nastran.vim
--- a/runtime/syntax/nastran.vim
+++ b/runtime/syntax/nastran.vim
@@ -6,11 +6,8 @@
 "		Since DMAP shares some traits with fortran, this syntax file
 "		is based on the fortran.vim syntax file.
 "----------------------------------------------------------------------
-" Remove any old syntax stuff hanging around
-"syn clear
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 " DMAP is not case dependent
@@ -156,37 +153,30 @@ syn region nastranBulkData start=+ *[Bb]
 syn keyword nastranUtilCard ECHOON ECHOOFF INCLUDE PARAM
 
 
-if version >= 508 || !exists("did_nastran_syntax_inits")
-  if version < 508
-     let did_nastran_syntax_inits = 1
-     command -nargs=+ HiLink hi link <args>
-  else
-     command -nargs=+ HiLink hi link <args>
-  endif
-  " The default methods for highlighting.  Can be overridden later
-  HiLink nastranDmapexecmod	     Statement
-  HiLink nastranDmapType	     Type
-  HiLink nastranDmapPreCondit	     Error
-  HiLink nastranDmapUtilmod	     PreProc
-  HiLink nastranDmapMatmod	     nastranDmapUtilmod
-  HiLink nastranDmapString	     String
-  HiLink nastranDmapNumber	     Constant
-  HiLink nastranDmapFloat	     nastranDmapNumber
-  HiLink nastranDmapInitTab	     nastranDmapNumber
-  HiLink nastranDmapTab		     nastranDmapNumber
-  HiLink nastranDmapLogical	     nastranDmapExecmod
-  HiLink nastranDmapImplicit	     Identifier
-  HiLink nastranDmapComment	     Comment
-  HiLink nastranDmapRepeat	     nastranDmapexecmod
-  HiLink nastranNastranCard	     nastranDmapPreCondit
-  HiLink nastranECSCard		     nastranDmapUtilmod
-  HiLink nastranFMSCard		     nastranNastranCard
-  HiLink nastranCC		     nastranDmapexecmod
-  HiLink nastranDelimiter	     Special
-  HiLink nastranBulkData	     nastranDmapType
-  HiLink nastranUtilCard	     nastranDmapexecmod
-  delcommand HiLink
-endif
+command -nargs=+ HiLink hi link <args>
+" The default methods for highlighting.  Can be overridden later
+HiLink nastranDmapexecmod	     Statement
+HiLink nastranDmapType	     Type
+HiLink nastranDmapPreCondit	     Error
+HiLink nastranDmapUtilmod	     PreProc
+HiLink nastranDmapMatmod	     nastranDmapUtilmod
+HiLink nastranDmapString	     String
+HiLink nastranDmapNumber	     Constant
+HiLink nastranDmapFloat	     nastranDmapNumber
+HiLink nastranDmapInitTab	     nastranDmapNumber
+HiLink nastranDmapTab		     nastranDmapNumber
+HiLink nastranDmapLogical	     nastranDmapExecmod
+HiLink nastranDmapImplicit	     Identifier
+HiLink nastranDmapComment	     Comment
+HiLink nastranDmapRepeat	     nastranDmapexecmod
+HiLink nastranNastranCard	     nastranDmapPreCondit
+HiLink nastranECSCard		     nastranDmapUtilmod
+HiLink nastranFMSCard		     nastranNastranCard
+HiLink nastranCC		     nastranDmapexecmod
+HiLink nastranDelimiter	     Special
+HiLink nastranBulkData	     nastranDmapType
+HiLink nastranUtilCard	     nastranDmapexecmod
+delcommand HiLink
 
 let b:current_syntax = "nastran"
 
diff --git a/runtime/syntax/natural.vim b/runtime/syntax/natural.vim
--- a/runtime/syntax/natural.vim
+++ b/runtime/syntax/natural.vim
@@ -6,16 +6,11 @@
 " Last Changed:	2012-02-05 18:50:43
 " Support:	http://www.von-oppen.com/
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when this syntax file was already loaded
-if v:version < 600
-  syntax clear
-  set iskeyword+=-,*,#,+,_,/
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
-else
-  setlocal iskeyword+=-,*,#,+,_,/
 endif
+setlocal iskeyword+=-,*,#,+,_,/
 
 let s:cpo_save = &cpo
 set cpo&vim
diff --git a/runtime/syntax/ncf.vim b/runtime/syntax/ncf.vim
--- a/runtime/syntax/ncf.vim
+++ b/runtime/syntax/ncf.vim
@@ -4,10 +4,8 @@
 " Last Change:	Tue, 04 Sep 2001 16:20:33 CDT
 " $Id: ncf.vim,v 1.1 2004/06/13 16:31:58 vimboss Exp $
 
-" Remove any old syntax stuff hanging around
-if version < 600
-    syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -217,42 +215,35 @@ if exists("ncf_highlight_unknowns")
     syn match Error "[^ \t]*" contains=ALL
 endif
 
-if version >= 508 || !exists("did_ncf_syntax_inits")
-    if version < 508
-	let did_ncf_syntax_inits = 1
-	command -nargs=+ HiLink hi link <args>
-    else
-	command -nargs=+ HiLink hi def link <args>
-    endif
+command -nargs=+ HiLink hi def link <args>
 
-    " The default methods for highlighting.  Can be overridden later
-    HiLink ncfCommands		Statement
-    HiLink ncfSetCommands	ncfCommands
-    HiLink ncfLogins		ncfCommands
-    HiLink ncfString		String
-    HiLink ncfContString	ncfString
-    HiLink ncfComment		Comment
-    HiLink ncfImplicit		Type
-    HiLink ncfBoolean		Boolean
-    HiLink ncfScript		Identifier
-    HiLink ncfNumber		Number
-    HiLink ncfIPAddr		ncfNumber
-    HiLink ncfHexNumber		ncfNumber
-    HiLink ncfTime		ncfNumber
-    HiLink ncfDSTTime		ncfNumber
-    HiLink ncfPath		Constant
-    HiLink ncfServerName	Special
-    HiLink ncfIPXNet		ncfServerName
-    HiLink ncfTimeTypes		Constant
-    HiLink ncfSetCommandsNum	   ncfSetCommands
-    HiLink ncfSetCommandsBool	   ncfSetCommands
-    HiLink ncfSetCommandsStr	   ncfSetCommands
-    HiLink ncfSetCommandsTime	   ncfSetCommands
-    HiLink ncfSetCommandsTimeDate  ncfSetCommands
-    HiLink ncfSetCommandsBindCon   ncfSetCommands
+" The default methods for highlighting.  Can be overridden later
+HiLink ncfCommands		Statement
+HiLink ncfSetCommands	ncfCommands
+HiLink ncfLogins		ncfCommands
+HiLink ncfString		String
+HiLink ncfContString	ncfString
+HiLink ncfComment		Comment
+HiLink ncfImplicit		Type
+HiLink ncfBoolean		Boolean
+HiLink ncfScript		Identifier
+HiLink ncfNumber		Number
+HiLink ncfIPAddr		ncfNumber
+HiLink ncfHexNumber		ncfNumber
+HiLink ncfTime		ncfNumber
+HiLink ncfDSTTime		ncfNumber
+HiLink ncfPath		Constant
+HiLink ncfServerName	Special
+HiLink ncfIPXNet		ncfServerName
+HiLink ncfTimeTypes		Constant
+HiLink ncfSetCommandsNum	   ncfSetCommands
+HiLink ncfSetCommandsBool	   ncfSetCommands
+HiLink ncfSetCommandsStr	   ncfSetCommands
+HiLink ncfSetCommandsTime	   ncfSetCommands
+HiLink ncfSetCommandsTimeDate  ncfSetCommands
+HiLink ncfSetCommandsBindCon   ncfSetCommands
 
-    delcommand HiLink
+delcommand HiLink
 
-endif
 
 let b:current_syntax = "ncf"
diff --git a/runtime/syntax/netrw.vim b/runtime/syntax/netrw.vim
--- a/runtime/syntax/netrw.vim
+++ b/runtime/syntax/netrw.vim
@@ -5,9 +5,8 @@
 " ---------------------------------------------------------------------
 
 " Syntax Clearing: {{{1
-if version < 600
- syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
  finish
 endif
 
diff --git a/runtime/syntax/nqc.vim b/runtime/syntax/nqc.vim
--- a/runtime/syntax/nqc.vim
+++ b/runtime/syntax/nqc.vim
@@ -6,11 +6,8 @@
 " URL:		http://www.enotes.de/twiki/pub/Home/LegoMindstorms/nqc.vim
 " Filenames:	.nqc
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -326,52 +323,44 @@ endif
 exec "syn sync ccomment nqcComment minlines=" . nqc_minlines
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_nqc_syn_inits")
-  if version < 508
-    let did_nqc_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting.  Can be overridden later
-  HiLink nqcLabel		Label
-  HiLink nqcConditional		Conditional
-  HiLink nqcRepeat		Repeat
-  HiLink nqcCharacter		Character
-  HiLink nqcNumber		Number
-  HiLink nqcFloat		Float
-  HiLink nqcFunction		Function
-  HiLink nqcParenError		nqcError
-  HiLink nqcErrInParen		nqcError
-  HiLink nqcErrInBracket	nqcError
-  HiLink nqcCommentL		nqcComment
-  HiLink nqcCommentStart	nqcComment
-  HiLink nqcCommentError	nqcError
-  HiLink nqcCommentStartError	nqcError
-  HiLink nqcSpaceError		nqcError
-  HiLink nqcStorageClass	StorageClass
-  HiLink nqcInclude		Include
-  HiLink nqcPreProc		PreProc
-  HiLink nqcDefine		Macro
-  HiLink nqcIncluded		String
-  HiLink nqcError		Error
-  HiLink nqcStatement		Statement
-  HiLink nqcEvents		Statement
-  HiLink nqcPreCondit		PreCondit
-  HiLink nqcType		Type
-  HiLink nqcConstant		Constant
-  HiLink nqcCommentSkip		nqcComment
-  HiLink nqcComment		Comment
-  HiLink nqcTodo		Todo
-  HiLink nqcCppSkip		nqcCppOut
-  HiLink nqcCppOut2		nqcCppOut
-  HiLink nqcCppOut		Comment
+" The default methods for highlighting.  Can be overridden later
+HiLink nqcLabel		Label
+HiLink nqcConditional		Conditional
+HiLink nqcRepeat		Repeat
+HiLink nqcCharacter		Character
+HiLink nqcNumber		Number
+HiLink nqcFloat		Float
+HiLink nqcFunction		Function
+HiLink nqcParenError		nqcError
+HiLink nqcErrInParen		nqcError
+HiLink nqcErrInBracket	nqcError
+HiLink nqcCommentL		nqcComment
+HiLink nqcCommentStart	nqcComment
+HiLink nqcCommentError	nqcError
+HiLink nqcCommentStartError	nqcError
+HiLink nqcSpaceError		nqcError
+HiLink nqcStorageClass	StorageClass
+HiLink nqcInclude		Include
+HiLink nqcPreProc		PreProc
+HiLink nqcDefine		Macro
+HiLink nqcIncluded		String
+HiLink nqcError		Error
+HiLink nqcStatement		Statement
+HiLink nqcEvents		Statement
+HiLink nqcPreCondit		PreCondit
+HiLink nqcType		Type
+HiLink nqcConstant		Constant
+HiLink nqcCommentSkip		nqcComment
+HiLink nqcComment		Comment
+HiLink nqcTodo		Todo
+HiLink nqcCppSkip		nqcCppOut
+HiLink nqcCppOut2		nqcCppOut
+HiLink nqcCppOut		Comment
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "nqc"
 
diff --git a/runtime/syntax/nroff.vim b/runtime/syntax/nroff.vim
--- a/runtime/syntax/nroff.vim
+++ b/runtime/syntax/nroff.vim
@@ -22,12 +22,9 @@
 "
 " {{{1 Start syntax highlighting.
 "
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
+" quit when a syntax file was already loaded
 "
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -197,65 +194,55 @@ syn keyword nroffTodo TODO XXX FIXME con
 
 "
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
+" Only when an item doesn't have highlighting yet
 "
-if version >= 508 || !exists("did_nroff_syn_inits")
+command -nargs=+ HiLink hi def link <args>
 
-	if version < 508
-		let did_nroff_syn_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+HiLink nroffEscChar nroffSpecialChar
+HiLink nroffEscCharAr nroffSpecialChar
+HiLink nroffSpecialChar SpecialChar
+HiLink nroffSpace Delimiter
+
+HiLink nroffEscRegArg2 nroffEscRegArg
+HiLink nroffEscRegArg nroffIdent
 
-	HiLink nroffEscChar nroffSpecialChar
-	HiLink nroffEscCharAr nroffSpecialChar
-	HiLink nroffSpecialChar SpecialChar
-	HiLink nroffSpace Delimiter
-
-	HiLink nroffEscRegArg2 nroffEscRegArg
-	HiLink nroffEscRegArg nroffIdent
+HiLink nroffEscArg2 nroffEscArg
+HiLink nroffEscPar nroffEscape
 
-	HiLink nroffEscArg2 nroffEscArg
-	HiLink nroffEscPar nroffEscape
+HiLink nroffEscRegPar nroffEscape
+HiLink nroffEscArg nroffEscape
+HiLink nroffSize nroffEscape
+HiLink nroffEscape Preproc
 
-	HiLink nroffEscRegPar nroffEscape
-	HiLink nroffEscArg nroffEscape
-	HiLink nroffSize nroffEscape
-	HiLink nroffEscape Preproc
+HiLink nroffIgnore Comment
+HiLink nroffComment Comment
+HiLink nroffTodo Todo
 
-	HiLink nroffIgnore Comment
-	HiLink nroffComment Comment
-	HiLink nroffTodo Todo
-
-	HiLink nroffReqLeader nroffRequest
-	HiLink nroffReqName nroffRequest
-	HiLink nroffRequest Statement
-	HiLink nroffCond PreCondit
-	HiLink nroffDefIdent nroffIdent
-	HiLink nroffIdent Identifier
+HiLink nroffReqLeader nroffRequest
+HiLink nroffReqName nroffRequest
+HiLink nroffRequest Statement
+HiLink nroffCond PreCondit
+HiLink nroffDefIdent nroffIdent
+HiLink nroffIdent Identifier
 
-	HiLink nroffEquation PreProc
-	HiLink nroffTable PreProc
-	HiLink nroffPicture PreProc
-	HiLink nroffRefer PreProc
-	HiLink nroffGrap PreProc
-	HiLink nroffGremlin PreProc
+HiLink nroffEquation PreProc
+HiLink nroffTable PreProc
+HiLink nroffPicture PreProc
+HiLink nroffRefer PreProc
+HiLink nroffGrap PreProc
+HiLink nroffGremlin PreProc
 
-	HiLink nroffNumber Number
-	HiLink nroffBadChar nroffError
-	HiLink nroffSpaceError nroffError
-	HiLink nroffError Error
+HiLink nroffNumber Number
+HiLink nroffBadChar nroffError
+HiLink nroffSpaceError nroffError
+HiLink nroffError Error
 
-	HiLink nroffPreserve String
-	HiLink nroffString String
-	HiLink nroffDefinition String
-	HiLink nroffDefSpecial Special
+HiLink nroffPreserve String
+HiLink nroffString String
+HiLink nroffDefinition String
+HiLink nroffDefSpecial Special
 
-	delcommand HiLink
-
-endif
+delcommand HiLink
 
 let b:current_syntax = "nroff"
 
diff --git a/runtime/syntax/nsis.vim b/runtime/syntax/nsis.vim
--- a/runtime/syntax/nsis.vim
+++ b/runtime/syntax/nsis.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Alex Jakushev <Alex.Jakushev@kemek.lt>
 " Last Change:	2004 May 12
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -224,48 +221,38 @@ syn keyword nsisError		UninstallExeName
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_nsis_syn_inits")
-
-  if version < 508
-    let did_nsys_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink nsisInstruction		Function
-  HiLink nsisComment			Comment
-  HiLink nsisLocalLabel			Label
-  HiLink nsisGlobalLabel		Label
-  HiLink nsisStatement			Statement
-  HiLink nsisString			String
-  HiLink nsisBoolean			Boolean
-  HiLink nsisAttribOptions		Constant
-  HiLink nsisExecShell			Constant
-  HiLink nsisFileAttrib			Constant
-  HiLink nsisMessageBox			Constant
-  HiLink nsisRegistry			Identifier
-  HiLink nsisNumber			Number
-  HiLink nsisError			Error
-  HiLink nsisUserVar			Identifier
-  HiLink nsisSysVar			Identifier
-  HiLink nsisAttribute			Type
-  HiLink nsisCompiler			Type
-  HiLink nsisTodo			Todo
-  HiLink nsisCallback			Operator
-  " preprocessor commands
-  HiLink nsisPreprocSubst		PreProc
-  HiLink nsisDefine			Define
-  HiLink nsisMacro			Macro
-  HiLink nsisPreCondit			PreCondit
-  HiLink nsisInclude			Include
-  HiLink nsisSystem			PreProc
+HiLink nsisInstruction		Function
+HiLink nsisComment			Comment
+HiLink nsisLocalLabel			Label
+HiLink nsisGlobalLabel		Label
+HiLink nsisStatement			Statement
+HiLink nsisString			String
+HiLink nsisBoolean			Boolean
+HiLink nsisAttribOptions		Constant
+HiLink nsisExecShell			Constant
+HiLink nsisFileAttrib			Constant
+HiLink nsisMessageBox			Constant
+HiLink nsisRegistry			Identifier
+HiLink nsisNumber			Number
+HiLink nsisError			Error
+HiLink nsisUserVar			Identifier
+HiLink nsisSysVar			Identifier
+HiLink nsisAttribute			Type
+HiLink nsisCompiler			Type
+HiLink nsisTodo			Todo
+HiLink nsisCallback			Operator
+" preprocessor commands
+HiLink nsisPreprocSubst		PreProc
+HiLink nsisDefine			Define
+HiLink nsisMacro			Macro
+HiLink nsisPreCondit			PreCondit
+HiLink nsisInclude			Include
+HiLink nsisSystem			PreProc
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "nsis"
 
diff --git a/runtime/syntax/obj.vim b/runtime/syntax/obj.vim
--- a/runtime/syntax/obj.vim
+++ b/runtime/syntax/obj.vim
@@ -4,11 +4,8 @@
 " File Types:	.obj (used in 3D)
 " Last Change:  2010 May 18
 "
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -62,34 +59,26 @@ syn match       objInt          "\d\+"
 syn match       objIndex        "\d\+\/\d*\/\d*"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_cabal_syn_inits")
-  if version < 508
-    let did_cabal_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink objError           Error
-  HiLink objComment         Comment
-  HiLink objInclude         PreProc
-  HiLink objFloat           Float
-  HiLink objInt             Number
-  HiLink objGroup           Structure
-  HiLink objIndex           Constant
-  HiLink objMaterial        Label
+HiLink objError           Error
+HiLink objComment         Comment
+HiLink objInclude         PreProc
+HiLink objFloat           Float
+HiLink objInt             Number
+HiLink objGroup           Structure
+HiLink objIndex           Constant
+HiLink objMaterial        Label
 
-  HiLink objVertex          Keyword
-  HiLink objNormale         Keyword
-  HiLink objVertice         Keyword
-  HiLink objFace            Keyword
-  HiLink objKeywords        Keyword
+HiLink objVertex          Keyword
+HiLink objNormale         Keyword
+HiLink objVertice         Keyword
+HiLink objFace            Keyword
+HiLink objKeywords        Keyword
 
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "obj"
 
diff --git a/runtime/syntax/objcpp.vim b/runtime/syntax/objcpp.vim
--- a/runtime/syntax/objcpp.vim
+++ b/runtime/syntax/objcpp.vim
@@ -4,23 +4,15 @@
 " Ex-Maintainer:    Anthony Hodsdon <ahodsdon@fastmail.fm>
 " Last Change:	    2007 Oct 29
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-   syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
    finish
 endif
 
 " Read in C++ and ObjC syntax files
-if version < 600
-   so <sfile>:p:h/cpp.vim
-   so <sfile>:p:h/objc.vim
-else
-   runtime! syntax/cpp.vim
-   unlet b:current_syntax
-   runtime! syntax/objc.vim
-endif
+runtime! syntax/cpp.vim
+unlet b:current_syntax
+runtime! syntax/objc.vim
 
 syn keyword objCppNonStructure    class template namespace transparent contained
 syn keyword objCppNonStatement    new delete friend using transparent contained
diff --git a/runtime/syntax/ocaml.vim b/runtime/syntax/ocaml.vim
--- a/runtime/syntax/ocaml.vim
+++ b/runtime/syntax/ocaml.vim
@@ -13,11 +13,8 @@
 " can be distinguished from begin/end, which is used for indentation,
 " and folding. (David Baelde)
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax") && b:current_syntax == "ocaml"
+" quit when a syntax file was already loaded
+if exists("b:current_syntax") && b:current_syntax == "ocaml"
   finish
 endif
 
@@ -253,78 +250,70 @@ syn sync match ocamlSigSync     groupher
 syn sync match ocamlSigSync     groupthere ocamlSig     "\<end\>"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_ocaml_syntax_inits")
-  if version < 508
-    let did_ocaml_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink ocamlBraceErr	   Error
+HiLink ocamlBrackErr	   Error
+HiLink ocamlParenErr	   Error
+HiLink ocamlArrErr	   Error
+
+HiLink ocamlCommentErr   Error
 
-  HiLink ocamlBraceErr	   Error
-  HiLink ocamlBrackErr	   Error
-  HiLink ocamlParenErr	   Error
-  HiLink ocamlArrErr	   Error
-
-  HiLink ocamlCommentErr   Error
+HiLink ocamlCountErr	   Error
+HiLink ocamlDoErr	   Error
+HiLink ocamlDoneErr	   Error
+HiLink ocamlEndErr	   Error
+HiLink ocamlThenErr	   Error
 
-  HiLink ocamlCountErr	   Error
-  HiLink ocamlDoErr	   Error
-  HiLink ocamlDoneErr	   Error
-  HiLink ocamlEndErr	   Error
-  HiLink ocamlThenErr	   Error
+HiLink ocamlCharErr	   Error
 
-  HiLink ocamlCharErr	   Error
+HiLink ocamlErr	   Error
 
-  HiLink ocamlErr	   Error
-
-  HiLink ocamlComment	   Comment
+HiLink ocamlComment	   Comment
 
-  HiLink ocamlModPath	   Include
-  HiLink ocamlObject	   Include
-  HiLink ocamlModule	   Include
-  HiLink ocamlModParam1    Include
-  HiLink ocamlModType	   Include
-  HiLink ocamlMPRestr3	   Include
-  HiLink ocamlFullMod	   Include
-  HiLink ocamlModTypeRestr Include
-  HiLink ocamlWith	   Include
-  HiLink ocamlMTDef	   Include
+HiLink ocamlModPath	   Include
+HiLink ocamlObject	   Include
+HiLink ocamlModule	   Include
+HiLink ocamlModParam1    Include
+HiLink ocamlModType	   Include
+HiLink ocamlMPRestr3	   Include
+HiLink ocamlFullMod	   Include
+HiLink ocamlModTypeRestr Include
+HiLink ocamlWith	   Include
+HiLink ocamlMTDef	   Include
 
-  HiLink ocamlScript	   Include
+HiLink ocamlScript	   Include
 
-  HiLink ocamlConstructor  Constant
+HiLink ocamlConstructor  Constant
 
-  HiLink ocamlVal          Keyword
-  HiLink ocamlModPreRHS    Keyword
-  HiLink ocamlMPRestr2	   Keyword
-  HiLink ocamlKeyword	   Keyword
-  HiLink ocamlMethod	   Include
-  HiLink ocamlFunDef	   Keyword
-  HiLink ocamlRefAssign    Keyword
-  HiLink ocamlKeyChar	   Keyword
-  HiLink ocamlAnyVar	   Keyword
-  HiLink ocamlTopStop	   Keyword
-  HiLink ocamlOperator	   Keyword
+HiLink ocamlVal          Keyword
+HiLink ocamlModPreRHS    Keyword
+HiLink ocamlMPRestr2	   Keyword
+HiLink ocamlKeyword	   Keyword
+HiLink ocamlMethod	   Include
+HiLink ocamlFunDef	   Keyword
+HiLink ocamlRefAssign    Keyword
+HiLink ocamlKeyChar	   Keyword
+HiLink ocamlAnyVar	   Keyword
+HiLink ocamlTopStop	   Keyword
+HiLink ocamlOperator	   Keyword
 
-  HiLink ocamlBoolean	   Boolean
-  HiLink ocamlCharacter    Character
-  HiLink ocamlNumber	   Number
-  HiLink ocamlFloat	   Float
-  HiLink ocamlString	   String
+HiLink ocamlBoolean	   Boolean
+HiLink ocamlCharacter    Character
+HiLink ocamlNumber	   Number
+HiLink ocamlFloat	   Float
+HiLink ocamlString	   String
 
-  HiLink ocamlLabel	   Identifier
+HiLink ocamlLabel	   Identifier
 
-  HiLink ocamlType	   Type
+HiLink ocamlType	   Type
 
-  HiLink ocamlTodo	   Todo
+HiLink ocamlTodo	   Todo
 
-  HiLink ocamlEncl	   Keyword
+HiLink ocamlEncl	   Keyword
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "ocaml"
 
diff --git a/runtime/syntax/occam.vim b/runtime/syntax/occam.vim
--- a/runtime/syntax/occam.vim
+++ b/runtime/syntax/occam.vim
@@ -4,9 +4,8 @@
 " Maintainer:	Mario Schweigler <ms44@kent.ac.uk>
 " Last Change:	24 May 2003
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -86,41 +85,34 @@ syn match occamCDString		/<\|>\|=\|(\|)/
 
 syn region occamCDirective	start=/#\(USE\|INCLUDE\|PRAGMA\|DEFINE\|UNDEFINE\|UNDEF\|IF\|ELIF\|ELSE\|ENDIF\|WARNING\|ERROR\|RELAX\)\>/ end=/$/ contains=occamString,occamComment,occamCDString
 
-if version >= 508 || !exists("did_occam_syn_inits")
-  if version < 508
-    let did_occam_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink occamType Type
-  HiLink occamKeyword Keyword
-  HiLink occamComment Comment
-  HiLink occamCommentTitle PreProc
-  HiLink occamTodo Todo
-  HiLink occamNote Todo
-  HiLink occamString String
-  HiLink occamCharString String
-  HiLink occamNumber Number
-  HiLink occamCDirective PreProc
-  HiLink occamCDString String
-  HiLink occamPPIdentifier PreProc
-  HiLink occamBoolean Boolean
-  HiLink occamSpecialChar SpecialChar
-  HiLink occamChar Character
-  HiLink occamStructure Structure
-  HiLink occamIdentifier Identifier
-  HiLink occamConstant Constant
-  HiLink occamOperator Operator
-  HiLink occamFunction Ignore
-  HiLink occamRepeat Repeat
-  HiLink occamConditional Conditional
-  HiLink occamBrackets Type
-  HiLink occamParantheses Delimiter
+HiLink occamType Type
+HiLink occamKeyword Keyword
+HiLink occamComment Comment
+HiLink occamCommentTitle PreProc
+HiLink occamTodo Todo
+HiLink occamNote Todo
+HiLink occamString String
+HiLink occamCharString String
+HiLink occamNumber Number
+HiLink occamCDirective PreProc
+HiLink occamCDString String
+HiLink occamPPIdentifier PreProc
+HiLink occamBoolean Boolean
+HiLink occamSpecialChar SpecialChar
+HiLink occamChar Character
+HiLink occamStructure Structure
+HiLink occamIdentifier Identifier
+HiLink occamConstant Constant
+HiLink occamOperator Operator
+HiLink occamFunction Ignore
+HiLink occamRepeat Repeat
+HiLink occamConditional Conditional
+HiLink occamBrackets Type
+HiLink occamParantheses Delimiter
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "occam"
 
diff --git a/runtime/syntax/omnimark.vim b/runtime/syntax/omnimark.vim
--- a/runtime/syntax/omnimark.vim
+++ b/runtime/syntax/omnimark.vim
@@ -3,19 +3,12 @@
 " Maintainer:	Paul Terray <mailto:terray@4dconcept.fr>
 " Last Change:	11 Oct 2000
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
-if version < 600
-  set iskeyword=@,48-57,_,128-167,224-235,-
-else
-  setlocal iskeyword=@,48-57,_,128-167,224-235,-
-endif
+setlocal iskeyword=@,48-57,_,128-167,224-235,-
 
 syn keyword omnimarkKeywords	ACTIVATE AGAIN
 syn keyword omnimarkKeywords	CATCH CLEAR CLOSE COPY COPY-CLEAR CROSS-TRANSLATE
@@ -96,26 +89,18 @@ syn match  omnimarkEscape contained +%[0
 syn sync minlines=2000
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_omnimark_syntax_inits")
-  if version < 508
-    let did_omnimark_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink omnimarkCommands		Statement
-  HiLink omnimarkKeywords		Identifier
-  HiLink omnimarkString		String
-  HiLink omnimarkPatterns		Macro
+HiLink omnimarkCommands		Statement
+HiLink omnimarkKeywords		Identifier
+HiLink omnimarkString		String
+HiLink omnimarkPatterns		Macro
 "  HiLink omnimarkNumber			Number
-  HiLink omnimarkComment		Comment
-  HiLink omnimarkEscape		Special
+HiLink omnimarkComment		Comment
+HiLink omnimarkEscape		Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "omnimark"
 
diff --git a/runtime/syntax/openroad.vim b/runtime/syntax/openroad.vim
--- a/runtime/syntax/openroad.vim
+++ b/runtime/syntax/openroad.vim
@@ -3,12 +3,8 @@
 " Maintainer:	Luis Moreno <lmoreno@eresmas.net>
 " Last change:	2001 Jun 12
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-"
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -235,32 +231,24 @@ else
 endif
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
+" Only when an item doesn't have highlighting yet
 "
-if version >= 508 || !exists("did_openroad_syntax_inits")
-	if version < 508
-		let did_openroad_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink openroadKeyword	Statement
-	HiLink openroadNumber	Number
-	HiLink openroadString	String
-	HiLink openroadComment	Comment
-	HiLink openroadOperator	Operator
-	HiLink openroadType		Type
-	HiLink openroadFunc		Special
-	HiLink openroadClass	Type
-	HiLink openroadEvent	Statement
-	HiLink openroadConst	Constant
-	HiLink openroadVar		Identifier
-	HiLink openroadIdent	Identifier
-	HiLink openroadTodo		Todo
+HiLink openroadKeyword	Statement
+HiLink openroadNumber	Number
+HiLink openroadString	String
+HiLink openroadComment	Comment
+HiLink openroadOperator	Operator
+HiLink openroadType		Type
+HiLink openroadFunc		Special
+HiLink openroadClass	Type
+HiLink openroadEvent	Statement
+HiLink openroadConst	Constant
+HiLink openroadVar		Identifier
+HiLink openroadIdent	Identifier
+HiLink openroadTodo		Todo
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "openroad"
diff --git a/runtime/syntax/opl.vim b/runtime/syntax/opl.vim
--- a/runtime/syntax/opl.vim
+++ b/runtime/syntax/opl.vim
@@ -6,11 +6,8 @@
 
 " Open Psion Language... (EPOC16/EPOC32)
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -75,25 +72,17 @@ syn region  OPLComment		start="REM[\t ]"
 syn match   OPLMathsOperator    "-\|=\|[:<>+\*^/\\]"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_OPL_syntax_inits")
-  if version < 508
-    let did_OPL_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink OPLStatement		Statement
-  HiLink OPLNumber		Number
-  HiLink OPLString		String
-  HiLink OPLComment		Comment
-  HiLink OPLMathsOperator	Conditional
+HiLink OPLStatement		Statement
+HiLink OPLNumber		Number
+HiLink OPLString		String
+HiLink OPLComment		Comment
+HiLink OPLMathsOperator	Conditional
 "  HiLink OPLError		Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "opl"
 
diff --git a/runtime/syntax/ora.vim b/runtime/syntax/ora.vim
--- a/runtime/syntax/ora.vim
+++ b/runtime/syntax/ora.vim
@@ -11,10 +11,8 @@
 "   sqlnet-ora and tnsnames.ora; since will not cause(?) problems
 "   is easier to follow separately each file's keywords)
 
-" Remove any old syntax stuff hanging around, if needed
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -437,36 +435,26 @@ syn cluster oraAll add=oraValue,oraModif
 "==============================================================================
 " highlighting
 
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_ora_syn_inits")
-
-  if version < 508
-    let did_ora_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink oraKeyword	  Statement		"usual keywords
-  HiLink oraKeywordGroup  Type			"keywords which group other keywords
-  HiLink oraKeywordPref   oraKeywordGroup	"keywords which act as prefixes
-  HiLink oraKeywordObs	  Todo			"obsolete keywords
-  HiLink oraKeywordUnd	  PreProc		"undocumented keywords
-  HiLink oraKeywordUndObs oraKeywordObs		"undocumented obsolete keywords
-  HiLink oraValue	  Identifier		"values, like true or false
-  HiLink oraModifier	  oraValue		"modifies values
-  HiLink oraString	  String		"strings
+HiLink oraKeyword	  Statement		"usual keywords
+HiLink oraKeywordGroup  Type			"keywords which group other keywords
+HiLink oraKeywordPref   oraKeywordGroup	"keywords which act as prefixes
+HiLink oraKeywordObs	  Todo			"obsolete keywords
+HiLink oraKeywordUnd	  PreProc		"undocumented keywords
+HiLink oraKeywordUndObs oraKeywordObs		"undocumented obsolete keywords
+HiLink oraValue	  Identifier		"values, like true or false
+HiLink oraModifier	  oraValue		"modifies values
+HiLink oraString	  String		"strings
 
-  HiLink oraSpecial	  Special		"special characters
-  HiLink oraError	  Error			"errors
-  HiLink oraParenError	  oraError		"errors caused by mismatching parantheses
+HiLink oraSpecial	  Special		"special characters
+HiLink oraError	  Error			"errors
+HiLink oraParenError	  oraError		"errors caused by mismatching parantheses
 
-  HiLink oraComment	  Comment		"comments
+HiLink oraComment	  Comment		"comments
 
-  delcommand HiLink
-endif
-
+delcommand HiLink
 
 
 let b:current_syntax = "ora"
diff --git a/runtime/syntax/papp.vim b/runtime/syntax/papp.vim
--- a/runtime/syntax/papp.vim
+++ b/runtime/syntax/papp.vim
@@ -14,41 +14,24 @@
 
 " pod is, btw, allowed everywhere, which is actually wrong :(
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " source is basically xml, with included html (this is common) and perl bits
-if version < 600
-  so <sfile>:p:h/xml.vim
-else
-  runtime! syntax/xml.vim
-endif
+runtime! syntax/xml.vim
 unlet b:current_syntax
 
 if exists("papp_include_html")
-  if version < 600
-    syn include @PAppHtml <sfile>:p:h/html.vim
-  else
-    syn include @PAppHtml syntax/html.vim
-  endif
+  syn include @PAppHtml syntax/html.vim
   unlet b:current_syntax
   syntax spell default  " added by Bram
 endif
 
-if version < 600
-  syn include @PAppPerl <sfile>:p:h/perl.vim
-else
-  syn include @PAppPerl syntax/perl.vim
-endif
+syn include @PAppPerl syntax/perl.vim
 
-if v:version >= 600
-   syn cluster xmlFoldCluster add=papp_perl,papp_xperl,papp_phtml,papp_pxml,papp_perlPOD
-endif
+syn cluster xmlFoldCluster add=papp_perl,papp_xperl,papp_phtml,papp_pxml,papp_perlPOD
 
 " preprocessor commands
 syn region papp_prep matchgroup=papp_prep start="^#\s*\(if\|elsif\)" end="$" keepend contains=@perlExpr contained
diff --git a/runtime/syntax/pascal.vim b/runtime/syntax/pascal.vim
--- a/runtime/syntax/pascal.vim
+++ b/runtime/syntax/pascal.vim
@@ -12,11 +12,8 @@
 "	Austin Ziegler <austin@halostatue.ca>,
 "	Markus Koenig <markus@stber-koenig.de>
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -320,52 +317,44 @@ if !exists("pascal_traditional")
 endif
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_pascal_syn_inits")
-  if version < 508
-    let did_pascal_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink pascalAcces		pascalStatement
-  HiLink pascalBoolean		Boolean
-  HiLink pascalComment		Comment
-  HiLink pascalConditional	Conditional
-  HiLink pascalConstant		Constant
-  HiLink pascalDelimiter	Identifier
-  HiLink pascalDirective	pascalStatement
-  HiLink pascalException	Exception
-  HiLink pascalFloat		Float
-  HiLink pascalFunction		Function
-  HiLink pascalLabel		Label
-  HiLink pascalMatrixDelimiter	Identifier
-  HiLink pascalModifier		Type
-  HiLink pascalNumber		Number
-  HiLink pascalOperator		Operator
-  HiLink pascalPredefined	pascalStatement
-  HiLink pascalPreProc		PreProc
-  HiLink pascalRepeat		Repeat
-  HiLink pascalSpaceError	Error
-  HiLink pascalStatement	Statement
-  HiLink pascalString		String
-  HiLink pascalStringEscape	Special
-  HiLink pascalStringEscapeGPC	Special
-  HiLink pascalStringError	Error
-  HiLink pascalStruct		pascalStatement
-  HiLink pascalSymbolOperator	pascalOperator
-  HiLink pascalTodo		Todo
-  HiLink pascalType		Type
-  HiLink pascalUnclassified	pascalStatement
-  "  HiLink pascalAsm		Assembler
-  HiLink pascalError		Error
-  HiLink pascalAsmKey		pascalStatement
-  HiLink pascalShowTab		Error
+HiLink pascalAcces		pascalStatement
+HiLink pascalBoolean		Boolean
+HiLink pascalComment		Comment
+HiLink pascalConditional	Conditional
+HiLink pascalConstant		Constant
+HiLink pascalDelimiter	Identifier
+HiLink pascalDirective	pascalStatement
+HiLink pascalException	Exception
+HiLink pascalFloat		Float
+HiLink pascalFunction		Function
+HiLink pascalLabel		Label
+HiLink pascalMatrixDelimiter	Identifier
+HiLink pascalModifier		Type
+HiLink pascalNumber		Number
+HiLink pascalOperator		Operator
+HiLink pascalPredefined	pascalStatement
+HiLink pascalPreProc		PreProc
+HiLink pascalRepeat		Repeat
+HiLink pascalSpaceError	Error
+HiLink pascalStatement	Statement
+HiLink pascalString		String
+HiLink pascalStringEscape	Special
+HiLink pascalStringEscapeGPC	Special
+HiLink pascalStringError	Error
+HiLink pascalStruct		pascalStatement
+HiLink pascalSymbolOperator	pascalOperator
+HiLink pascalTodo		Todo
+HiLink pascalType		Type
+HiLink pascalUnclassified	pascalStatement
+"  HiLink pascalAsm		Assembler
+HiLink pascalError		Error
+HiLink pascalAsmKey		pascalStatement
+HiLink pascalShowTab		Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "pascal"
diff --git a/runtime/syntax/pcap.vim b/runtime/syntax/pcap.vim
--- a/runtime/syntax/pcap.vim
+++ b/runtime/syntax/pcap.vim
@@ -4,20 +4,13 @@
 "		Modified by Bram
 " Last Change:	2003 May 11
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 "define keywords
-if version < 600
-  set isk=@,46-57,_,-,#,=,192-255
-else
-  setlocal isk=@,46-57,_,-,#,=,192-255
-endif
+setlocal isk=@,46-57,_,-,#,=,192-255
 
 "first all the bad guys
 syn match pcapBad '^.\+$'	       "define any line as bad
@@ -43,22 +36,14 @@ syn sync minlines=50
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_pcap_syntax_inits")
-  if version < 508
-    let did_pcap_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink pcapBad WarningMsg
-  HiLink pcapBadword WarningMsg
-  HiLink pcapComment Comment
+HiLink pcapBad WarningMsg
+HiLink pcapBadword WarningMsg
+HiLink pcapComment Comment
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "pcap"
 
diff --git a/runtime/syntax/pccts.vim b/runtime/syntax/pccts.vim
--- a/runtime/syntax/pccts.vim
+++ b/runtime/syntax/pccts.vim
@@ -3,20 +3,13 @@
 " Maintainer:	Scott Bigham <dsb@killerbunnies.org>
 " Last Change:	10 Aug 1999
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " Read the C++ syntax to start with
-if version < 600
-  syn include @cppTopLevel <sfile>:p:h/cpp.vim
-else
-  syn include @cppTopLevel syntax/cpp.vim
-endif
+syn include @cppTopLevel syntax/cpp.vim
 
 syn region pcctsAction matchgroup=pcctsDelim start="<<" end=">>?\=" contains=@cppTopLevel,pcctsRuleRef
 
@@ -72,34 +65,26 @@ syn sync match pcctsSyncRule grouphere p
 syn sync match pcctsSyncRule grouphere pcctsRule "\<[a-z][A-Za-z0-9_]*\>\(\s*\[[^]]*\]\)\=\s*>\s*\[[^]]*\]\s*:"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_pccts_syntax_inits")
-  if version < 508
-    let did_pccts_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink pcctsDelim		Special
-  HiLink pcctsTokenName		Identifier
-  HiLink pcctsRuleName		Statement
-  HiLink pcctsLabelHack		Label
-  HiLink pcctsDirective		PreProc
-  HiLink pcctsString		String
-  HiLink pcctsComment		Comment
-  HiLink pcctsClass		Statement
-  HiLink pcctsClassName		Identifier
-  HiLink pcctsException		Statement
-  HiLink pcctsExceptionHandler	Keyword
-  HiLink pcctsExceptionRuleRef	pcctsDelim
-  HiLink pcctsExceptionID	Identifier
-  HiLink pcctsRuleRef		Identifier
-  HiLink pcctsSpecialChar	SpecialChar
+HiLink pcctsDelim		Special
+HiLink pcctsTokenName		Identifier
+HiLink pcctsRuleName		Statement
+HiLink pcctsLabelHack		Label
+HiLink pcctsDirective		PreProc
+HiLink pcctsString		String
+HiLink pcctsComment		Comment
+HiLink pcctsClass		Statement
+HiLink pcctsClassName		Identifier
+HiLink pcctsException		Statement
+HiLink pcctsExceptionHandler	Keyword
+HiLink pcctsExceptionRuleRef	pcctsDelim
+HiLink pcctsExceptionID	Identifier
+HiLink pcctsRuleRef		Identifier
+HiLink pcctsSpecialChar	SpecialChar
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "pccts"
 
diff --git a/runtime/syntax/perl6.vim b/runtime/syntax/perl6.vim
--- a/runtime/syntax/perl6.vim
+++ b/runtime/syntax/perl6.vim
@@ -61,11 +61,8 @@
 "  unlet perl6_extended_q
 "  unlet perl6_extended_all
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 let s:keepcpo= &cpo
@@ -2063,176 +2060,168 @@ syn region p6PodFormatFrench
     \ contains=p6PodFormatAnglesFrench,p6PodFormatFrench,p6PodFormatOne,p6PodFormatTwo,p6PodFormatThree,p6PodVerticalBar,p6PodSemiColon,p6PodComma
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_perl6_syntax_inits")
-    if version < 508
-        let did_perl6_syntax_inits = 1
-        command -nargs=+ HiLink hi link <args>
-    else
-        command -nargs=+ HiLink hi def link <args>
-    endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-    HiLink p6EscOctOld       p6Error
-    HiLink p6PackageTwigil   p6Twigil
-    HiLink p6StringAngle     p6String
-    HiLink p6StringFrench    p6String
-    HiLink p6StringAngles    p6String
-    HiLink p6StringSQ        p6String
-    HiLink p6StringDQ        p6String
-    HiLink p6StringQ         p6String
-    HiLink p6RxStringSQ      p6String
-    HiLink p6RxStringDQ      p6String
-    HiLink p6Substitution    p6String
-    HiLink p6Transliteration p6String
-    HiLink p6StringAuto      p6String
-    HiLink p6StringP5Auto    p6String
-    HiLink p6Key             p6String
-    HiLink p6Match           p6String
-    HiLink p6RegexBlock      p6String
-    HiLink p6RxP5CharClass   p6String
-    HiLink p6RxP5QuoteMeta   p6String
-    HiLink p6RxCharClass     p6String
-    HiLink p6RxQuoteWords    p6String
-    HiLink p6ReduceOp        p6Operator
-    HiLink p6ReverseCrossOp  p6Operator
-    HiLink p6HyperOp         p6Operator
-    HiLink p6QuoteQ          p6Operator
-    HiLink p6RxRange         p6StringSpecial
-    HiLink p6RxAnchor        p6StringSpecial
-    HiLink p6RxP5Anchor      p6StringSpecial
-    HiLink p6CodePoint       p6StringSpecial
-    HiLink p6RxMeta          p6StringSpecial
-    HiLink p6RxP5Range       p6StringSpecial
-    HiLink p6RxP5CPId        p6StringSpecial
-    HiLink p6RxP5Posix       p6StringSpecial
-    HiLink p6RxP5Mod         p6StringSpecial
-    HiLink p6RxP5HexSeq      p6StringSpecial
-    HiLink p6RxP5OctSeq      p6StringSpecial
-    HiLink p6RxP5WriteRefId  p6StringSpecial
-    HiLink p6HexSequence     p6StringSpecial
-    HiLink p6OctSequence     p6StringSpecial
-    HiLink p6RxP5Named       p6StringSpecial
-    HiLink p6RxP5PropId      p6StringSpecial
-    HiLink p6RxP5Quantifier  p6StringSpecial
-    HiLink p6RxP5CountId     p6StringSpecial
-    HiLink p6RxP5Verb        p6StringSpecial
-    HiLink p6Escape          p6StringSpecial2
-    HiLink p6EscNull         p6StringSpecial2
-    HiLink p6EscHash         p6StringSpecial2
-    HiLink p6EscQQ           p6StringSpecial2
-    HiLink p6EscQuote        p6StringSpecial2
-    HiLink p6EscDoubleQuote  p6StringSpecial2
-    HiLink p6EscBackTick     p6StringSpecial2
-    HiLink p6EscForwardSlash p6StringSpecial2
-    HiLink p6EscVerticalBar  p6StringSpecial2
-    HiLink p6EscExclamation  p6StringSpecial2
-    HiLink p6EscDollar       p6StringSpecial2
-    HiLink p6EscOpenCurly    p6StringSpecial2
-    HiLink p6EscCloseCurly   p6StringSpecial2
-    HiLink p6EscCloseBracket p6StringSpecial2
-    HiLink p6EscCloseAngle   p6StringSpecial2
-    HiLink p6EscCloseFrench  p6StringSpecial2
-    HiLink p6EscBackSlash    p6StringSpecial2
-    HiLink p6RxEscape        p6StringSpecial2
-    HiLink p6RxCapture       p6StringSpecial2
-    HiLink p6RxAlternation   p6StringSpecial2
-    HiLink p6RxP5            p6StringSpecial2
-    HiLink p6RxP5ReadRef     p6StringSpecial2
-    HiLink p6RxP5Oct         p6StringSpecial2
-    HiLink p6RxP5Hex         p6StringSpecial2
-    HiLink p6RxP5EscMeta     p6StringSpecial2
-    HiLink p6RxP5Meta        p6StringSpecial2
-    HiLink p6RxP5Escape      p6StringSpecial2
-    HiLink p6RxP5CodePoint   p6StringSpecial2
-    HiLink p6RxP5WriteRef    p6StringSpecial2
-    HiLink p6RxP5Prop        p6StringSpecial2
+HiLink p6EscOctOld       p6Error
+HiLink p6PackageTwigil   p6Twigil
+HiLink p6StringAngle     p6String
+HiLink p6StringFrench    p6String
+HiLink p6StringAngles    p6String
+HiLink p6StringSQ        p6String
+HiLink p6StringDQ        p6String
+HiLink p6StringQ         p6String
+HiLink p6RxStringSQ      p6String
+HiLink p6RxStringDQ      p6String
+HiLink p6Substitution    p6String
+HiLink p6Transliteration p6String
+HiLink p6StringAuto      p6String
+HiLink p6StringP5Auto    p6String
+HiLink p6Key             p6String
+HiLink p6Match           p6String
+HiLink p6RegexBlock      p6String
+HiLink p6RxP5CharClass   p6String
+HiLink p6RxP5QuoteMeta   p6String
+HiLink p6RxCharClass     p6String
+HiLink p6RxQuoteWords    p6String
+HiLink p6ReduceOp        p6Operator
+HiLink p6ReverseCrossOp  p6Operator
+HiLink p6HyperOp         p6Operator
+HiLink p6QuoteQ          p6Operator
+HiLink p6RxRange         p6StringSpecial
+HiLink p6RxAnchor        p6StringSpecial
+HiLink p6RxP5Anchor      p6StringSpecial
+HiLink p6CodePoint       p6StringSpecial
+HiLink p6RxMeta          p6StringSpecial
+HiLink p6RxP5Range       p6StringSpecial
+HiLink p6RxP5CPId        p6StringSpecial
+HiLink p6RxP5Posix       p6StringSpecial
+HiLink p6RxP5Mod         p6StringSpecial
+HiLink p6RxP5HexSeq      p6StringSpecial
+HiLink p6RxP5OctSeq      p6StringSpecial
+HiLink p6RxP5WriteRefId  p6StringSpecial
+HiLink p6HexSequence     p6StringSpecial
+HiLink p6OctSequence     p6StringSpecial
+HiLink p6RxP5Named       p6StringSpecial
+HiLink p6RxP5PropId      p6StringSpecial
+HiLink p6RxP5Quantifier  p6StringSpecial
+HiLink p6RxP5CountId     p6StringSpecial
+HiLink p6RxP5Verb        p6StringSpecial
+HiLink p6Escape          p6StringSpecial2
+HiLink p6EscNull         p6StringSpecial2
+HiLink p6EscHash         p6StringSpecial2
+HiLink p6EscQQ           p6StringSpecial2
+HiLink p6EscQuote        p6StringSpecial2
+HiLink p6EscDoubleQuote  p6StringSpecial2
+HiLink p6EscBackTick     p6StringSpecial2
+HiLink p6EscForwardSlash p6StringSpecial2
+HiLink p6EscVerticalBar  p6StringSpecial2
+HiLink p6EscExclamation  p6StringSpecial2
+HiLink p6EscDollar       p6StringSpecial2
+HiLink p6EscOpenCurly    p6StringSpecial2
+HiLink p6EscCloseCurly   p6StringSpecial2
+HiLink p6EscCloseBracket p6StringSpecial2
+HiLink p6EscCloseAngle   p6StringSpecial2
+HiLink p6EscCloseFrench  p6StringSpecial2
+HiLink p6EscBackSlash    p6StringSpecial2
+HiLink p6RxEscape        p6StringSpecial2
+HiLink p6RxCapture       p6StringSpecial2
+HiLink p6RxAlternation   p6StringSpecial2
+HiLink p6RxP5            p6StringSpecial2
+HiLink p6RxP5ReadRef     p6StringSpecial2
+HiLink p6RxP5Oct         p6StringSpecial2
+HiLink p6RxP5Hex         p6StringSpecial2
+HiLink p6RxP5EscMeta     p6StringSpecial2
+HiLink p6RxP5Meta        p6StringSpecial2
+HiLink p6RxP5Escape      p6StringSpecial2
+HiLink p6RxP5CodePoint   p6StringSpecial2
+HiLink p6RxP5WriteRef    p6StringSpecial2
+HiLink p6RxP5Prop        p6StringSpecial2
 
-    HiLink p6Property       Tag
-    HiLink p6Attention      Todo
-    HiLink p6Type           Type
-    HiLink p6Error          Error
-    HiLink p6BlockLabel     Label
-    HiLink p6Float          Float
-    HiLink p6Normal         Normal
-    HiLink p6Package        Normal
-    HiLink p6PackageScope   Normal
-    HiLink p6Number         Number
-    HiLink p6VersionNum     Number
-    HiLink p6String         String
-    HiLink p6Repeat         Repeat
-    HiLink p6Keyword        Keyword
-    HiLink p6Pragma         Keyword
-    HiLink p6Module         Keyword
-    HiLink p6DeclareRoutine Keyword
-    HiLink p6VarStorage     Special
-    HiLink p6FlowControl    Special
-    HiLink p6NumberBase     Special
-    HiLink p6Twigil         Special
-    HiLink p6StringSpecial2 Special
-    HiLink p6VersionDot     Special
-    HiLink p6Comment        Comment
-    HiLink p6Include        Include
-    HiLink p6Shebang        PreProc
-    HiLink p6ClosureTrait   PreProc
-    HiLink p6Routine        Function
-    HiLink p6Operator       Operator
-    HiLink p6Version        Operator
-    HiLink p6Context        Operator
-    HiLink p6Quote          Delimiter
-    HiLink p6TypeConstraint PreCondit
-    HiLink p6Exception      Exception
-    HiLink p6Placeholder    Identifier
-    HiLink p6Variable       Identifier
-    HiLink p6VarSlash       Identifier
-    HiLink p6VarNum         Identifier
-    HiLink p6VarExclam      Identifier
-    HiLink p6VarMatch       Identifier
-    HiLink p6VarName        Identifier
-    HiLink p6MatchVar       Identifier
-    HiLink p6RxP5ReadRefId  Identifier
-    HiLink p6RxP5ModDef     Identifier
-    HiLink p6RxP5ModName    Identifier
-    HiLink p6Conditional    Conditional
-    HiLink p6StringSpecial  SpecialChar
+HiLink p6Property       Tag
+HiLink p6Attention      Todo
+HiLink p6Type           Type
+HiLink p6Error          Error
+HiLink p6BlockLabel     Label
+HiLink p6Float          Float
+HiLink p6Normal         Normal
+HiLink p6Package        Normal
+HiLink p6PackageScope   Normal
+HiLink p6Number         Number
+HiLink p6VersionNum     Number
+HiLink p6String         String
+HiLink p6Repeat         Repeat
+HiLink p6Keyword        Keyword
+HiLink p6Pragma         Keyword
+HiLink p6Module         Keyword
+HiLink p6DeclareRoutine Keyword
+HiLink p6VarStorage     Special
+HiLink p6FlowControl    Special
+HiLink p6NumberBase     Special
+HiLink p6Twigil         Special
+HiLink p6StringSpecial2 Special
+HiLink p6VersionDot     Special
+HiLink p6Comment        Comment
+HiLink p6Include        Include
+HiLink p6Shebang        PreProc
+HiLink p6ClosureTrait   PreProc
+HiLink p6Routine        Function
+HiLink p6Operator       Operator
+HiLink p6Version        Operator
+HiLink p6Context        Operator
+HiLink p6Quote          Delimiter
+HiLink p6TypeConstraint PreCondit
+HiLink p6Exception      Exception
+HiLink p6Placeholder    Identifier
+HiLink p6Variable       Identifier
+HiLink p6VarSlash       Identifier
+HiLink p6VarNum         Identifier
+HiLink p6VarExclam      Identifier
+HiLink p6VarMatch       Identifier
+HiLink p6VarName        Identifier
+HiLink p6MatchVar       Identifier
+HiLink p6RxP5ReadRefId  Identifier
+HiLink p6RxP5ModDef     Identifier
+HiLink p6RxP5ModName    Identifier
+HiLink p6Conditional    Conditional
+HiLink p6StringSpecial  SpecialChar
 
-    HiLink p6PodAbbr         p6Pod
-    HiLink p6PodAbbrEOF      p6Pod
-    HiLink p6PodAbbrNoCode   p6Pod
-    HiLink p6PodAbbrCode     p6PodCode
-    HiLink p6PodPara         p6Pod
-    HiLink p6PodParaEOF      p6Pod
-    HiLink p6PodParaNoCode   p6Pod
-    HiLink p6PodParaCode     p6PodCode
-    HiLink p6PodDelim        p6Pod
-    HiLink p6PodDelimEOF     p6Pod
-    HiLink p6PodDelimNoCode  p6Pod
-    HiLink p6PodDelimCode    p6PodCode
-    HiLink p6PodImplicitCode p6PodCode
-    HiLink p6PodExtraConfig  p6PodPrefix
-    HiLink p6PodVerticalBar  p6PodFormatCode
-    HiLink p6PodColon        p6PodFormatCode
-    HiLink p6PodSemicolon    p6PodFormatCode
-    HiLink p6PodComma        p6PodFormatCode
-    HiLink p6PodFormatOne    p6PodFormat
-    HiLink p6PodFormatTwo    p6PodFormat
-    HiLink p6PodFormatThree  p6PodFormat
-    HiLink p6PodFormatFrench p6PodFormat
+HiLink p6PodAbbr         p6Pod
+HiLink p6PodAbbrEOF      p6Pod
+HiLink p6PodAbbrNoCode   p6Pod
+HiLink p6PodAbbrCode     p6PodCode
+HiLink p6PodPara         p6Pod
+HiLink p6PodParaEOF      p6Pod
+HiLink p6PodParaNoCode   p6Pod
+HiLink p6PodParaCode     p6PodCode
+HiLink p6PodDelim        p6Pod
+HiLink p6PodDelimEOF     p6Pod
+HiLink p6PodDelimNoCode  p6Pod
+HiLink p6PodDelimCode    p6PodCode
+HiLink p6PodImplicitCode p6PodCode
+HiLink p6PodExtraConfig  p6PodPrefix
+HiLink p6PodVerticalBar  p6PodFormatCode
+HiLink p6PodColon        p6PodFormatCode
+HiLink p6PodSemicolon    p6PodFormatCode
+HiLink p6PodComma        p6PodFormatCode
+HiLink p6PodFormatOne    p6PodFormat
+HiLink p6PodFormatTwo    p6PodFormat
+HiLink p6PodFormatThree  p6PodFormat
+HiLink p6PodFormatFrench p6PodFormat
 
-    HiLink p6PodType           Type
-    HiLink p6PodConfigOption   String
-    HiLink p6PodCode           PreProc
-    HiLink p6Pod               Comment
-    HiLink p6PodComment        Comment
-    HiLink p6PodAutoQuote      Operator
-    HiLink p6PodConfigOperator Operator
-    HiLink p6PodPrefix         Statement
-    HiLink p6PodName           Identifier
-    HiLink p6PodFormatCode     SpecialChar
-    HiLink p6PodFormat         SpecialComment
+HiLink p6PodType           Type
+HiLink p6PodConfigOption   String
+HiLink p6PodCode           PreProc
+HiLink p6Pod               Comment
+HiLink p6PodComment        Comment
+HiLink p6PodAutoQuote      Operator
+HiLink p6PodConfigOperator Operator
+HiLink p6PodPrefix         Statement
+HiLink p6PodName           Identifier
+HiLink p6PodFormatCode     SpecialChar
+HiLink p6PodFormat         SpecialComment
 
-    delcommand HiLink
-endif
+delcommand HiLink
 
 " Syncing to speed up processing
 "syn sync match p6SyncPod groupthere p6PodAbbrRegion     "^=\K\k*\>"
diff --git a/runtime/syntax/pfmain.vim b/runtime/syntax/pfmain.vim
--- a/runtime/syntax/pfmain.vim
+++ b/runtime/syntax/pfmain.vim
@@ -7,17 +7,12 @@
 " URL:		http://cern.ch/fuji/vim/syntax/pfmain.vim
 " Comment:	Based on Postfix 2.12/3.0 postconf.5.html.
 
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
-if version >= 600
-	setlocal iskeyword=@,48-57,_,-
-else
-	set iskeyword=@,48-57,_,-
-endif
+setlocal iskeyword=@,48-57,_,-
 
 syntax case match
 syntax sync minlines=1
@@ -1816,33 +1811,26 @@ syntax match pfmainSpecial	"\<smtpd\>"
 syntax match pfmainSpecial	"\<trace\>"
 syntax match pfmainSpecial	"\<verify\>"
 
-if version >= 508 || !exists("pfmain_syntax_init")
-	if version < 508
-		let pfmain_syntax_init = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink pfmainConf	Statement
-	HiLink pfmainRef	PreProc
-	HiLink pfmainWord	identifier
+HiLink pfmainConf	Statement
+HiLink pfmainRef	PreProc
+HiLink pfmainWord	identifier
 
-	HiLink pfmainDict	Type
-	HiLink pfmainQueueDir	Constant
-	HiLink pfmainTransport	Constant
-	HiLink pfmainLock	Constant
-	HiLink pfmainAnswer	Constant
+HiLink pfmainDict	Type
+HiLink pfmainQueueDir	Constant
+HiLink pfmainTransport	Constant
+HiLink pfmainLock	Constant
+HiLink pfmainAnswer	Constant
 
-	HiLink pfmainComment	Comment
-	HiLink pfmainNumber	Number
-	HiLink pfmainTime	Number
-	HiLink pfmainIP		Number
-	HiLink pfmainVariable	Error
-	HiLink pfmainSpecial	Special
+HiLink pfmainComment	Comment
+HiLink pfmainNumber	Number
+HiLink pfmainTime	Number
+HiLink pfmainIP		Number
+HiLink pfmainVariable	Error
+HiLink pfmainSpecial	Special
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "pfmain"
 
diff --git a/runtime/syntax/php.vim b/runtime/syntax/php.vim
--- a/runtime/syntax/php.vim
+++ b/runtime/syntax/php.vim
@@ -55,11 +55,8 @@
 "    ii) Same problem if you are setting php_folding = 2 with a closing
 "        } inside an string on the first line of this string.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -67,16 +64,8 @@ if !exists("main_syntax")
   let main_syntax = 'php'
 endif
 
-if version < 600
-  unlet! php_folding
-  if exists("php_sync_method") && !php_sync_method
-    let php_sync_method=-1
-  endif
-  so <sfile>:p:h/html.vim
-else
-  runtime! syntax/html.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/html.vim
+unlet b:current_syntax
 
 " accept old options
 if !exists("php_sync_method")
@@ -94,11 +83,7 @@ endif
 
 syn cluster htmlPreproc add=phpRegion,phpRegionAsp,phpRegionSc
 
-if version < 600
-  syn include @sqlTop <sfile>:p:h/sql.vim
-else
-  syn include @sqlTop syntax/sql.vim
-endif
+syn include @sqlTop syntax/sql.vim
 syn sync clear
 unlet b:current_syntax
 syn cluster sqlTop remove=sqlString,sqlComment
@@ -381,15 +366,8 @@ if exists("php_parent_error_open")
 else
   syn region  phpComment  start="/\*" end="\*/" contained contains=phpTodo,@Spell extend
 endif
-if version >= 600
-  syn match phpComment  "#.\{-}\(?>\|$\)\@="  contained contains=phpTodo,@Spell
-  syn match phpComment  "//.\{-}\(?>\|$\)\@=" contained contains=phpTodo,@Spell
-else
-  syn match phpComment  "#.\{-}$" contained contains=phpTodo,@Spell
-  syn match phpComment  "#.\{-}?>"me=e-2  contained contains=phpTodo,@Spell
-  syn match phpComment  "//.\{-}$"  contained contains=phpTodo,@Spell
-  syn match phpComment  "//.\{-}?>"me=e-2 contained contains=phpTodo,@Spell
-endif
+syn match phpComment  "#.\{-}\(?>\|$\)\@="  contained contains=phpTodo,@Spell
+syn match phpComment  "//.\{-}\(?>\|$\)\@=" contained contains=phpTodo,@Spell
 
 " String
 if exists("php_parent_error_open")
@@ -403,24 +381,22 @@ else
 endif
 
 " HereDoc and NowDoc
-if version >= 600
-  syn case match
+syn case match
 
-  " HereDoc
-  syn region  phpHereDoc  matchgroup=Delimiter start="\(<<<\)\@<=\(\"\=\)\z(\I\i*\)\2$" end="^\z1\(;\=$\)\@=" contained contains=phpIdentifier,phpIdentifierSimply,phpIdentifierComplex,phpBackslashSequences,phpMethodsVar,@Spell keepend extend
+" HereDoc
+syn region  phpHereDoc  matchgroup=Delimiter start="\(<<<\)\@<=\(\"\=\)\z(\I\i*\)\2$" end="^\z1\(;\=$\)\@=" contained contains=phpIdentifier,phpIdentifierSimply,phpIdentifierComplex,phpBackslashSequences,phpMethodsVar,@Spell keepend extend
 " including HTML,JavaScript,SQL even if not enabled via options
-  syn region  phpHereDoc  matchgroup=Delimiter start="\(<<<\)\@<=\(\"\=\)\z(\(\I\i*\)\=\(html\)\c\(\i*\)\)\2$" end="^\z1\(;\=$\)\@="  contained contains=@htmlTop,phpIdentifier,phpIdentifierSimply,phpIdentifierComplex,phpBackslashSequences,phpMethodsVar,@Spell keepend extend
-  syn region  phpHereDoc  matchgroup=Delimiter start="\(<<<\)\@<=\(\"\=\)\z(\(\I\i*\)\=\(sql\)\c\(\i*\)\)\2$" end="^\z1\(;\=$\)\@=" contained contains=@sqlTop,phpIdentifier,phpIdentifierSimply,phpIdentifierComplex,phpBackslashSequences,phpMethodsVar,@Spell keepend extend
-  syn region  phpHereDoc  matchgroup=Delimiter start="\(<<<\)\@<=\(\"\=\)\z(\(\I\i*\)\=\(javascript\)\c\(\i*\)\)\2$" end="^\z1\(;\=$\)\@="  contained contains=@htmlJavascript,phpIdentifierSimply,phpIdentifier,phpIdentifierComplex,phpBackslashSequences,phpMethodsVar,@Spell keepend extend
+syn region  phpHereDoc  matchgroup=Delimiter start="\(<<<\)\@<=\(\"\=\)\z(\(\I\i*\)\=\(html\)\c\(\i*\)\)\2$" end="^\z1\(;\=$\)\@="  contained contains=@htmlTop,phpIdentifier,phpIdentifierSimply,phpIdentifierComplex,phpBackslashSequences,phpMethodsVar,@Spell keepend extend
+syn region  phpHereDoc  matchgroup=Delimiter start="\(<<<\)\@<=\(\"\=\)\z(\(\I\i*\)\=\(sql\)\c\(\i*\)\)\2$" end="^\z1\(;\=$\)\@=" contained contains=@sqlTop,phpIdentifier,phpIdentifierSimply,phpIdentifierComplex,phpBackslashSequences,phpMethodsVar,@Spell keepend extend
+syn region  phpHereDoc  matchgroup=Delimiter start="\(<<<\)\@<=\(\"\=\)\z(\(\I\i*\)\=\(javascript\)\c\(\i*\)\)\2$" end="^\z1\(;\=$\)\@="  contained contains=@htmlJavascript,phpIdentifierSimply,phpIdentifier,phpIdentifierComplex,phpBackslashSequences,phpMethodsVar,@Spell keepend extend
 
-  " NowDoc
-  syn region  phpNowDoc  matchgroup=Delimiter start="\(<<<\)\@<='\z(\I\i*\)'$" end="^\z1\(;\=$\)\@=" contained contains=@Spell keepend extend
+" NowDoc
+syn region  phpNowDoc  matchgroup=Delimiter start="\(<<<\)\@<='\z(\I\i*\)'$" end="^\z1\(;\=$\)\@=" contained contains=@Spell keepend extend
 " including HTML,JavaScript,SQL even if not enabled via options
-  syn region  phpNowDoc  matchgroup=Delimiter start="\(<<<\)\@<='\z(\(\I\i*\)\=\(html\)\c\(\i*\)\)'$" end="^\z1\(;\=$\)\@="  contained contains=@htmlTop,@Spell keepend extend
-  syn region  phpNowDoc  matchgroup=Delimiter start="\(<<<\)\@<='\z(\(\I\i*\)\=\(sql\)\c\(\i*\)\)'$" end="^\z1\(;\=$\)\@=" contained contains=@sqlTop,@Spell keepend extend
-  syn region  phpNowDoc  matchgroup=Delimiter start="\(<<<\)\@<='\z(\(\I\i*\)\=\(javascript\)\c\(\i*\)\)'$" end="^\z1\(;\=$\)\@="  contained contains=@htmlJavascript,@Spell keepend extend
-  syn case ignore
-endif
+syn region  phpNowDoc  matchgroup=Delimiter start="\(<<<\)\@<='\z(\(\I\i*\)\=\(html\)\c\(\i*\)\)'$" end="^\z1\(;\=$\)\@="  contained contains=@htmlTop,@Spell keepend extend
+syn region  phpNowDoc  matchgroup=Delimiter start="\(<<<\)\@<='\z(\(\I\i*\)\=\(sql\)\c\(\i*\)\)'$" end="^\z1\(;\=$\)\@=" contained contains=@sqlTop,@Spell keepend extend
+syn region  phpNowDoc  matchgroup=Delimiter start="\(<<<\)\@<='\z(\(\I\i*\)\=\(javascript\)\c\(\i*\)\)'$" end="^\z1\(;\=$\)\@="  contained contains=@htmlJavascript,@Spell keepend extend
+syn case ignore
 
 " Parent
 if exists("php_parent_error_close") || exists("php_parent_error_open")
@@ -621,81 +597,73 @@ syntax match  phpDocTags  "@\(abstract\|
 syntax match  phpDocTodo  "@\(todo\|fixme\|xxx\)\(\s\+\)\?" containedin=phpComment
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_php_syn_inits")
-  if version < 508
-    let did_php_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink   phpConstant  Constant
-  HiLink   phpCoreConstant  Constant
-  HiLink   phpComment Comment
-  HiLink   phpDocTags PreProc
-  HiLink   phpDocCustomTags Type
-  HiLink   phpException Exception
-  HiLink   phpBoolean Boolean
-  HiLink   phpStorageClass  StorageClass
-  HiLink   phpSCKeyword StorageClass
-  HiLink   phpFCKeyword Define
-  HiLink   phpStructure Structure
-  HiLink   phpStringSingle  String
-  HiLink   phpStringDouble  String
-  HiLink   phpBacktick  String
-  HiLink   phpNumber  Number
-  HiLink   phpFloat Float
-  HiLink   phpMethods Function
-  HiLink   phpFunctions Function
-  HiLink   phpBaselib Function
-  HiLink   phpRepeat  Repeat
-  HiLink   phpConditional Conditional
-  HiLink   phpLabel Label
-  HiLink   phpStatement Statement
-  HiLink   phpKeyword Statement
-  HiLink   phpType  Type
-  HiLink   phpInclude Include
-  HiLink   phpDefine  Define
-  HiLink   phpBackslashSequences SpecialChar
-  HiLink   phpBackslashDoubleQuote SpecialChar
-  HiLink   phpBackslashSingleQuote SpecialChar
-  HiLink   phpParent  Delimiter
-  HiLink   phpBrackets  Delimiter
-  HiLink   phpIdentifierConst Delimiter
-  HiLink   phpParentError Error
-  HiLink   phpOctalError  Error
-  HiLink   phpInterpSimpleError Error
-  HiLink   phpInterpBogusDollarCurley Error
-  HiLink   phpInterpDollarCurly1 Error
-  HiLink   phpInterpDollarCurly2 Error
-  HiLink   phpInterpSimpleBracketsInner String
-  HiLink   phpInterpSimpleCurly Delimiter
-  HiLink   phpInterpVarname Identifier
-  HiLink   phpTodo  Todo
-  HiLink   phpDocTodo Todo
-  HiLink   phpMemberSelector  Structure
-  if exists("php_oldStyle")
-  hi  phpIntVar guifg=Red ctermfg=DarkRed
-  hi  phpEnvVar guifg=Red ctermfg=DarkRed
-  hi  phpOperator guifg=SeaGreen ctermfg=DarkGreen
-  hi  phpVarSelector guifg=SeaGreen ctermfg=DarkGreen
-  hi  phpRelation guifg=SeaGreen ctermfg=DarkGreen
-  hi  phpIdentifier guifg=DarkGray ctermfg=Brown
-  hi  phpIdentifierSimply guifg=DarkGray ctermfg=Brown
-  else
-  HiLink   phpIntVar Identifier
-  HiLink   phpEnvVar Identifier
-  HiLink   phpOperator Operator
-  HiLink   phpVarSelector  Operator
-  HiLink   phpRelation Operator
-  HiLink   phpIdentifier Identifier
-  HiLink   phpIdentifierSimply Identifier
-  endif
+HiLink   phpConstant  Constant
+HiLink   phpCoreConstant  Constant
+HiLink   phpComment Comment
+HiLink   phpDocTags PreProc
+HiLink   phpDocCustomTags Type
+HiLink   phpException Exception
+HiLink   phpBoolean Boolean
+HiLink   phpStorageClass  StorageClass
+HiLink   phpSCKeyword StorageClass
+HiLink   phpFCKeyword Define
+HiLink   phpStructure Structure
+HiLink   phpStringSingle  String
+HiLink   phpStringDouble  String
+HiLink   phpBacktick  String
+HiLink   phpNumber  Number
+HiLink   phpFloat Float
+HiLink   phpMethods Function
+HiLink   phpFunctions Function
+HiLink   phpBaselib Function
+HiLink   phpRepeat  Repeat
+HiLink   phpConditional Conditional
+HiLink   phpLabel Label
+HiLink   phpStatement Statement
+HiLink   phpKeyword Statement
+HiLink   phpType  Type
+HiLink   phpInclude Include
+HiLink   phpDefine  Define
+HiLink   phpBackslashSequences SpecialChar
+HiLink   phpBackslashDoubleQuote SpecialChar
+HiLink   phpBackslashSingleQuote SpecialChar
+HiLink   phpParent  Delimiter
+HiLink   phpBrackets  Delimiter
+HiLink   phpIdentifierConst Delimiter
+HiLink   phpParentError Error
+HiLink   phpOctalError  Error
+HiLink   phpInterpSimpleError Error
+HiLink   phpInterpBogusDollarCurley Error
+HiLink   phpInterpDollarCurly1 Error
+HiLink   phpInterpDollarCurly2 Error
+HiLink   phpInterpSimpleBracketsInner String
+HiLink   phpInterpSimpleCurly Delimiter
+HiLink   phpInterpVarname Identifier
+HiLink   phpTodo  Todo
+HiLink   phpDocTodo Todo
+HiLink   phpMemberSelector  Structure
+if exists("php_oldStyle")
+hi  phpIntVar guifg=Red ctermfg=DarkRed
+hi  phpEnvVar guifg=Red ctermfg=DarkRed
+hi  phpOperator guifg=SeaGreen ctermfg=DarkGreen
+hi  phpVarSelector guifg=SeaGreen ctermfg=DarkGreen
+hi  phpRelation guifg=SeaGreen ctermfg=DarkGreen
+hi  phpIdentifier guifg=DarkGray ctermfg=Brown
+hi  phpIdentifierSimply guifg=DarkGray ctermfg=Brown
+else
+HiLink   phpIntVar Identifier
+HiLink   phpEnvVar Identifier
+HiLink   phpOperator Operator
+HiLink   phpVarSelector  Operator
+HiLink   phpRelation Operator
+HiLink   phpIdentifier Identifier
+HiLink   phpIdentifierSimply Identifier
+endif
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "php"
 
diff --git a/runtime/syntax/pic.vim b/runtime/syntax/pic.vim
--- a/runtime/syntax/pic.vim
+++ b/runtime/syntax/pic.vim
@@ -5,11 +5,8 @@
 " URL:		http://galeb.etf.bg.ac.yu/~alexa/vim/syntax/pic.vim
 " Revision:     1.01
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -91,36 +88,28 @@ syn match picDirective   "#\=DEFINE"
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_pic16f84_syntax_inits")
-  if version < 508
-    let did_pic16f84_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink picTodo		Todo
+HiLink picComment		Comment
+HiLink picDirective		Statement
+HiLink picLabel		Label
+HiLink picString		String
 
-  HiLink picTodo		Todo
-  HiLink picComment		Comment
-  HiLink picDirective		Statement
-  HiLink picLabel		Label
-  HiLink picString		String
-
- "HiLink picOpcode		Keyword
- "HiLink picRegister		Structure
- "HiLink picRegisterPart	Special
+"HiLink picOpcode		Keyword
+"HiLink picRegister		Structure
+"HiLink picRegisterPart	Special
 
-  HiLink picASCII		String
-  HiLink picBinary		Number
-  HiLink picDecimal		Number
-  HiLink picHexadecimal		Number
-  HiLink picOctal		Number
+HiLink picASCII		String
+HiLink picBinary		Number
+HiLink picDecimal		Number
+HiLink picHexadecimal		Number
+HiLink picOctal		Number
 
-  HiLink picIdentifier		Identifier
+HiLink picIdentifier		Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "pic"
 
diff --git a/runtime/syntax/pike.vim b/runtime/syntax/pike.vim
--- a/runtime/syntax/pike.vim
+++ b/runtime/syntax/pike.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Francesco Chemolli <kinkie@kame.usr.dsi.unimi.it>
 " Last Change:	2001 May 10
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -104,51 +101,43 @@ syn match	pikeBitField	";\s*\I\i*\s*:\s*
 syn sync ccomment pikeComment minlines=10
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_pike_syntax_inits")
-  if version < 508
-    let did_pike_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink pikeLabel		Label
-  HiLink pikeUserLabel		Label
-  HiLink pikeConditional	Conditional
-  HiLink pikeRepeat		Repeat
-  HiLink pikeCharacter		Character
-  HiLink pikeSpecialCharacter pikeSpecial
-  HiLink pikeNumber		Number
-  HiLink pikeFloat		Float
-  HiLink pikeOctalError		pikeError
-  HiLink pikeParenError		pikeError
-  HiLink pikeInParen		pikeError
-  HiLink pikeCommentError	pikeError
-  HiLink pikeOperator		Operator
-  HiLink pikeInclude		Include
-  HiLink pikePreProc		PreProc
-  HiLink pikeDefine		Macro
-  HiLink pikeIncluded		pikeString
-  HiLink pikeError		Error
-  HiLink pikeStatement		Statement
-  HiLink pikePreCondit		PreCondit
-  HiLink pikeType		Type
-  HiLink pikeCommentError	pikeError
-  HiLink pikeCommentString	pikeString
-  HiLink pikeComment2String	pikeString
-  HiLink pikeCommentSkip	pikeComment
-  HiLink pikeString		String
-  HiLink pikeComment		Comment
-  HiLink pikeSpecial		SpecialChar
-  HiLink pikeTodo		Todo
-  HiLink pikeException		pikeStatement
-  HiLink pikeCompoundType	Constant
-  "HiLink pikeIdentifier	Identifier
+HiLink pikeLabel		Label
+HiLink pikeUserLabel		Label
+HiLink pikeConditional	Conditional
+HiLink pikeRepeat		Repeat
+HiLink pikeCharacter		Character
+HiLink pikeSpecialCharacter pikeSpecial
+HiLink pikeNumber		Number
+HiLink pikeFloat		Float
+HiLink pikeOctalError		pikeError
+HiLink pikeParenError		pikeError
+HiLink pikeInParen		pikeError
+HiLink pikeCommentError	pikeError
+HiLink pikeOperator		Operator
+HiLink pikeInclude		Include
+HiLink pikePreProc		PreProc
+HiLink pikeDefine		Macro
+HiLink pikeIncluded		pikeString
+HiLink pikeError		Error
+HiLink pikeStatement		Statement
+HiLink pikePreCondit		PreCondit
+HiLink pikeType		Type
+HiLink pikeCommentError	pikeError
+HiLink pikeCommentString	pikeString
+HiLink pikeComment2String	pikeString
+HiLink pikeCommentSkip	pikeComment
+HiLink pikeString		String
+HiLink pikeComment		Comment
+HiLink pikeSpecial		SpecialChar
+HiLink pikeTodo		Todo
+HiLink pikeException		pikeStatement
+HiLink pikeCompoundType	Constant
+"HiLink pikeIdentifier	Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "pike"
 
diff --git a/runtime/syntax/pilrc.vim b/runtime/syntax/pilrc.vim
--- a/runtime/syntax/pilrc.vim
+++ b/runtime/syntax/pilrc.vim
@@ -4,10 +4,8 @@
 " Last change:	2003 May 11
 " Available on:	http://www.schau.com/pilrcvim/pilrc.vim
 
-" Remove any old syntax
-if version < 600
-	syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -119,30 +117,22 @@ syn region pilrcInclude start="public cl
 
 syn sync ccomment pilrcComment
 
-if version >= 508 || !exists("did_pilrc_syntax_inits")
-	if version < 508
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
-
-	let did_pilrc_syntax_inits = 1
+command -nargs=+ HiLink hi def link <args>
 
-	" The default methods for highlighting
-	HiLink pilrcKeyword		Statement
-	HiLink pilrcType		Type
-	HiLink pilrcError		Error
-	HiLink pilrcCountry		SpecialChar
-	HiLink pilrcLanguage		SpecialChar
-	HiLink pilrcString		SpecialChar
-	HiLink pilrcNumber		Number
-	HiLink pilrcComment		Comment
-	HiLink pilrcConstant		Constant
-	HiLink pilrcFunction		Function
-	HiLink pilrcInclude		SpecialChar
-	HiLink pilrcIdentifier		Number
+" The default methods for highlighting
+HiLink pilrcKeyword		Statement
+HiLink pilrcType		Type
+HiLink pilrcError		Error
+HiLink pilrcCountry		SpecialChar
+HiLink pilrcLanguage		SpecialChar
+HiLink pilrcString		SpecialChar
+HiLink pilrcNumber		Number
+HiLink pilrcComment		Comment
+HiLink pilrcConstant		Constant
+HiLink pilrcFunction		Function
+HiLink pilrcInclude		SpecialChar
+HiLink pilrcIdentifier		Number
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "pilrc"
diff --git a/runtime/syntax/pine.vim b/runtime/syntax/pine.vim
--- a/runtime/syntax/pine.vim
+++ b/runtime/syntax/pine.vim
@@ -3,19 +3,12 @@
 " Maintainer:	David Pascoe <pascoedj@spamcop.net>
 " Last Change:	Thu Feb 27 10:18:48 WST 2003, update for pine 4.53
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
-if version >= 600
-  setlocal iskeyword=@,48-57,_,128-167,224-235,-
-else
-  set iskeyword=@,48-57,_,128-167,224-235,-
-endif
+setlocal iskeyword=@,48-57,_,128-167,224-235,-
 
 syn keyword pineConfig addrbook-sort-rule
 syn keyword pineConfig address-book
@@ -351,21 +344,13 @@ syn keyword pineOption vertical-folder-l
 syn match  pineComment  "^#.*$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_pine_syn_inits")
-  if version < 508
-    let did_pine_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink pineConfig	Type
-  HiLink pineComment	Comment
-  HiLink pineOption	Macro
-  delcommand HiLink
-endif
+HiLink pineConfig	Type
+HiLink pineComment	Comment
+HiLink pineOption	Macro
+delcommand HiLink
 
 let b:current_syntax = "pine"
 
diff --git a/runtime/syntax/pli.vim b/runtime/syntax/pli.vim
--- a/runtime/syntax/pli.vim
+++ b/runtime/syntax/pli.vim
@@ -3,9 +3,8 @@
 " using keywords from http://www.kednos.com/pli/docs/reference_manual/6291pro_contents.html
 "    2012-11-13 Alan Thompson
 
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -222,57 +221,48 @@ endif
 syn sync minlines=10 maxlines=100
 
 " Define the default highlighting.
-" For version 5.x and earlier, only when not done already.
-" For version 5.8 and later, only when and item doesn't have highlighting
-" yet.
-if version >= 508 || !exists("did_pl1_syn_inits")
-    if version < 508
-        let did_pl1_syn_inits = 1
-        command -nargs=+ HiLink hi link <args>
-    else
-        command -nargs=+ HiLink hi def link <args>
-    endif
+" Only when and item doesn't have highlighting yet.
+command -nargs=+ HiLink hi def link <args>
 
-    HiLink pl1Attribute       Macro
-    HiLink pl1BlockError      Error
-    HiLink pl1BooleanLiteral  Boolean
-    HiLink pl1CharLiteral     Character
-    HiLink pl1Comment         Comment
-    HiLink pl1CommentL        Comment
-    HiLink pl1Conditional     Conditional
-    HiLink pl1Error           Error
-    HiLink pl1ErrInBracket    Error
-    HiLink pl1ErrInBlock      Error
-    HiLink pl1ErrInParen      Error
-    HiLink pl1Exception       Function
-    HiLink pl1FloatLiteral    Float
-    HiLink pl1Function        Function
-    HiLink pl1Garbage         Error
-    HiLink pl1HostIdentifier  Label
-    HiLink pl1Identifier      Normal
-    HiLink pl1IntLiteral      Number
-    HiLink pl1Operator        Operator
-    HiLink pl1Paren           Normal
-    HiLink pl1ParenError      Error
-    HiLink pl1SpaceError      Error
-    HiLink pl1Pseudo          PreProc
-    HiLink pl1PreProc         PreProc
-    HiLink pl1PreProcSym      PreProc
-    HiLink pl1Keyword         Keyword
-    HiLink pl1Other           Keyword
-    HiLink pl1Repeat          Repeat
-    HiLink pl1Statement       Keyword
-    HiLink pl1Storage         StorageClass
-    HiLink pl1StringError     Error
-    HiLink pl1StringLiteral   String
-    HiLink pl1CommentString   String
-    HiLink pl1Comment2String  String
-    HiLink pl1Symbol          Normal
-    HiLink pl1Trigger         Function
-    HiLink pl1TypeAttribute   StorageClass
-    HiLink pl1Todo            Todo
+HiLink pl1Attribute       Macro
+HiLink pl1BlockError      Error
+HiLink pl1BooleanLiteral  Boolean
+HiLink pl1CharLiteral     Character
+HiLink pl1Comment         Comment
+HiLink pl1CommentL        Comment
+HiLink pl1Conditional     Conditional
+HiLink pl1Error           Error
+HiLink pl1ErrInBracket    Error
+HiLink pl1ErrInBlock      Error
+HiLink pl1ErrInParen      Error
+HiLink pl1Exception       Function
+HiLink pl1FloatLiteral    Float
+HiLink pl1Function        Function
+HiLink pl1Garbage         Error
+HiLink pl1HostIdentifier  Label
+HiLink pl1Identifier      Normal
+HiLink pl1IntLiteral      Number
+HiLink pl1Operator        Operator
+HiLink pl1Paren           Normal
+HiLink pl1ParenError      Error
+HiLink pl1SpaceError      Error
+HiLink pl1Pseudo          PreProc
+HiLink pl1PreProc         PreProc
+HiLink pl1PreProcSym      PreProc
+HiLink pl1Keyword         Keyword
+HiLink pl1Other           Keyword
+HiLink pl1Repeat          Repeat
+HiLink pl1Statement       Keyword
+HiLink pl1Storage         StorageClass
+HiLink pl1StringError     Error
+HiLink pl1StringLiteral   String
+HiLink pl1CommentString   String
+HiLink pl1Comment2String  String
+HiLink pl1Symbol          Normal
+HiLink pl1Trigger         Function
+HiLink pl1TypeAttribute   StorageClass
+HiLink pl1Todo            Todo
 
-    delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "pl1"
diff --git a/runtime/syntax/plm.vim b/runtime/syntax/plm.vim
--- a/runtime/syntax/plm.vim
+++ b/runtime/syntax/plm.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Philippe Coulonges <cphil@cphil.net>
 " Last change:	2003 May 11
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -103,43 +100,35 @@ syn keyword plm386w16BuiltIn SETD SKIPD 
 syn sync lines=50
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_plm_syntax_inits")
-  if version < 508
-    let did_plm_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
- " The default methods for highlighting.  Can be overridden later
+" The default methods for highlighting.  Can be overridden later
 "  HiLink plmLabel			Label
 "  HiLink plmConditional		Conditional
 "  HiLink plmRepeat			Repeat
-  HiLink plmTodo			Todo
-  HiLink plmNumber			Number
-  HiLink plmOperator			Operator
-  HiLink plmDelimiter			Operator
-  "HiLink plmShowTab			Error
-  "HiLink plmShowTabc			Error
-  HiLink plmIdentifier			Identifier
-  HiLink plmBuiltIn			Statement
-  HiLink plm286BuiltIn			Statement
-  HiLink plm386BuiltIn			Statement
-  HiLink plm386w16BuiltIn		Statement
-  HiLink plmReserved			Statement
-  HiLink plm386Reserved			Statement
-  HiLink plmPreProc			PreProc
-  HiLink plmCommentError		plmError
-  HiLink plmCommentString		plmString
-  HiLink plmComment2String		plmString
-  HiLink plmCommentSkip			plmComment
-  HiLink plmString			String
-  HiLink plmComment			Comment
+HiLink plmTodo			Todo
+HiLink plmNumber			Number
+HiLink plmOperator			Operator
+HiLink plmDelimiter			Operator
+"HiLink plmShowTab			Error
+"HiLink plmShowTabc			Error
+HiLink plmIdentifier			Identifier
+HiLink plmBuiltIn			Statement
+HiLink plm286BuiltIn			Statement
+HiLink plm386BuiltIn			Statement
+HiLink plm386w16BuiltIn		Statement
+HiLink plmReserved			Statement
+HiLink plm386Reserved			Statement
+HiLink plmPreProc			PreProc
+HiLink plmCommentError		plmError
+HiLink plmCommentString		plmString
+HiLink plmComment2String		plmString
+HiLink plmCommentSkip			plmComment
+HiLink plmString			String
+HiLink plmComment			Comment
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "plm"
 
diff --git a/runtime/syntax/plp.vim b/runtime/syntax/plp.vim
--- a/runtime/syntax/plp.vim
+++ b/runtime/syntax/plp.vim
@@ -7,11 +7,8 @@
 " Add to filetype.vim the following line (without quote sign):
 " au BufNewFile,BufRead *.plp setf plp
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -19,14 +16,9 @@ if !exists("main_syntax")
   let main_syntax = 'perlscript'
 endif
 
-if version < 600
-  so <sfile>:p:h/html.vim
-  syn include @PLPperl <sfile>:p:h/perl.vim
-else
-  runtime! syntax/html.vim
-  unlet b:current_syntax
-  syn include @PLPperl syntax/perl.vim
-endif
+runtime! syntax/html.vim
+unlet b:current_syntax
+syn include @PLPperl syntax/perl.vim
 
 syn cluster htmlPreproc add=PLPperlblock
 
diff --git a/runtime/syntax/plsql.vim b/runtime/syntax/plsql.vim
--- a/runtime/syntax/plsql.vim
+++ b/runtime/syntax/plsql.vim
@@ -9,11 +9,8 @@
 "	   Austin Ziegler (austin at halostatue dot ca)
 "		Added 8i+ features.
 "
-" For version 5.x, clear all syntax items.
-" For version 6.x, quit when a syntax file was already loaded.
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -223,54 +220,46 @@ endif
 syn sync minlines=10 maxlines=100
 
 " Define the default highlighting.
-" For version 5.x and earlier, only when not done already.
-" For version 5.8 and later, only when an item doesn't have highlighting yet.
-if version >= 508 || !exists("did_plsql_syn_inits")
-  if version < 508
-    let did_plsql_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet.
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink plsqlAttribute		Macro
-  HiLink plsqlBlockError	Error
-  HiLink plsqlBooleanLiteral	Boolean
-  HiLink plsqlCharLiteral	Character
-  HiLink plsqlComment		Comment
-  HiLink plsqlCommentL		Comment
-  HiLink plsqlConditional	Conditional
-  HiLink plsqlError		Error
-  HiLink plsqlErrInBracket	Error
-  HiLink plsqlErrInBlock	Error
-  HiLink plsqlErrInParen	Error
-  HiLink plsqlException		Function
-  HiLink plsqlFloatLiteral	Float
-  HiLink plsqlFunction		Function
-  HiLink plsqlGarbage		Error
-  HiLink plsqlHostIdentifier	Label
-  HiLink plsqlIdentifier	Normal
-  HiLink plsqlIntLiteral	Number
-  HiLink plsqlOperator		Operator
-  HiLink plsqlParen		Normal
-  HiLink plsqlParenError	Error
-  HiLink plsqlSpaceError	Error
-  HiLink plsqlPseudo		PreProc
-  HiLink plsqlKeyword		Keyword
-  HiLink plsqlRepeat		Repeat
-  HiLink plsqlStorage		StorageClass
-  HiLink plsqlSQLKeyword	Function
-  HiLink plsqlStringError	Error
-  HiLink plsqlStringLiteral	String
-  HiLink plsqlCommentString	String
-  HiLink plsqlComment2String	String
-  HiLink plsqlSymbol		Normal
-  HiLink plsqlTrigger		Function
-  HiLink plsqlTypeAttribute	StorageClass
-  HiLink plsqlTodo		Todo
+HiLink plsqlAttribute		Macro
+HiLink plsqlBlockError	Error
+HiLink plsqlBooleanLiteral	Boolean
+HiLink plsqlCharLiteral	Character
+HiLink plsqlComment		Comment
+HiLink plsqlCommentL		Comment
+HiLink plsqlConditional	Conditional
+HiLink plsqlError		Error
+HiLink plsqlErrInBracket	Error
+HiLink plsqlErrInBlock	Error
+HiLink plsqlErrInParen	Error
+HiLink plsqlException		Function
+HiLink plsqlFloatLiteral	Float
+HiLink plsqlFunction		Function
+HiLink plsqlGarbage		Error
+HiLink plsqlHostIdentifier	Label
+HiLink plsqlIdentifier	Normal
+HiLink plsqlIntLiteral	Number
+HiLink plsqlOperator		Operator
+HiLink plsqlParen		Normal
+HiLink plsqlParenError	Error
+HiLink plsqlSpaceError	Error
+HiLink plsqlPseudo		PreProc
+HiLink plsqlKeyword		Keyword
+HiLink plsqlRepeat		Repeat
+HiLink plsqlStorage		StorageClass
+HiLink plsqlSQLKeyword	Function
+HiLink plsqlStringError	Error
+HiLink plsqlStringLiteral	String
+HiLink plsqlCommentString	String
+HiLink plsqlComment2String	String
+HiLink plsqlSymbol		Normal
+HiLink plsqlTrigger		Function
+HiLink plsqlTypeAttribute	StorageClass
+HiLink plsqlTodo		Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "plsql"
 
diff --git a/runtime/syntax/po.vim b/runtime/syntax/po.vim
--- a/runtime/syntax/po.vim
+++ b/runtime/syntax/po.vim
@@ -6,11 +6,8 @@
 "               Leonardo Fontenelle (Spell checking)
 "               Nam SungHyun <namsh@kldp.org> (Original maintainer)
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 let s:keepcpo= &cpo
@@ -82,61 +79,53 @@ syn match poAcceleratorStr  contained "[
 syn match poVariable contained "%\d"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_po_syn_inits")
-  if version < 508
-    let did_po_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink poCommentSources    PreProc
-  HiLink poComment	     Comment
-  HiLink poCommentAutomatic  Comment
-  HiLink poCommentTranslator Comment
-  HiLink poCommentFlags      Special
-  HiLink poCommentDiff       Comment
-  HiLink poCopyrightUnset    Todo
-  HiLink poFlagFuzzy         Todo
-  HiLink poDiffOld           Todo
-  HiLink poDiffNew          Special
-  HiLink poObsolete         Comment
+HiLink poCommentSources    PreProc
+HiLink poComment	     Comment
+HiLink poCommentAutomatic  Comment
+HiLink poCommentTranslator Comment
+HiLink poCommentFlags      Special
+HiLink poCommentDiff       Comment
+HiLink poCopyrightUnset    Todo
+HiLink poFlagFuzzy         Todo
+HiLink poDiffOld           Todo
+HiLink poDiffNew          Special
+HiLink poObsolete         Comment
 
-  HiLink poStatementMsgid   Statement
-  HiLink poStatementMsgstr  Statement
-  HiLink poStatementMsgidplural  Statement
-  HiLink poStatementMsgCTxt Statement
-  HiLink poPluralCaseN      Constant
+HiLink poStatementMsgid   Statement
+HiLink poStatementMsgstr  Statement
+HiLink poStatementMsgidplural  Statement
+HiLink poStatementMsgCTxt Statement
+HiLink poPluralCaseN      Constant
 
-  HiLink poStringCTxt	    Comment
-  HiLink poStringID	    String
-  HiLink poStringSTR	    String
-  HiLink poCommentKDE       Comment
-  HiLink poCommentKDEError  Error
-  HiLink poPluralKDE        Comment
-  HiLink poPluralKDEError   Error
-  HiLink poHeaderItem       Identifier
-  HiLink poHeaderUndefined  Todo
-  HiLink poKDEdesktopFile   Identifier
+HiLink poStringCTxt	    Comment
+HiLink poStringID	    String
+HiLink poStringSTR	    String
+HiLink poCommentKDE       Comment
+HiLink poCommentKDEError  Error
+HiLink poPluralKDE        Comment
+HiLink poPluralKDEError   Error
+HiLink poHeaderItem       Identifier
+HiLink poHeaderUndefined  Todo
+HiLink poKDEdesktopFile   Identifier
 
-  HiLink poHtml              Identifier
-  HiLink poHtmlNot           String
-  HiLink poHtmlTranslatables String
-  HiLink poLineBreak         String
+HiLink poHtml              Identifier
+HiLink poHtmlNot           String
+HiLink poHtmlTranslatables String
+HiLink poLineBreak         String
 
-  HiLink poFormat	    poSpecial
-  HiLink poSpecial	    Special
-  HiLink poAcceleratorId    Special
-  HiLink poAcceleratorStr   Special
-  HiLink poVariable         Special
+HiLink poFormat	    poSpecial
+HiLink poSpecial	    Special
+HiLink poAcceleratorId    Special
+HiLink poAcceleratorStr   Special
+HiLink poVariable         Special
 
-  HiLink poMsguniqError        Special
-  HiLink poMsguniqErrorMarkers Comment
+HiLink poMsguniqError        Special
+HiLink poMsguniqErrorMarkers Comment
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "po"
 
diff --git a/runtime/syntax/pod.vim b/runtime/syntax/pod.vim
--- a/runtime/syntax/pod.vim
+++ b/runtime/syntax/pod.vim
@@ -19,11 +19,8 @@
 
 " Remove any old syntax stuff hanging around (this is suppressed
 " automatically by ":syn include" if necessary).
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -67,28 +64,20 @@ syn match  podEscape	"\I\i*>"me=e-1 cont
 syn match  podEscape2	"\d\+>"me=e-1 contained contains=@NoSpell
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_pod_syntax_inits")
-  if version < 508
-    let did_pod_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink podCommand		Statement
-  HiLink podCmdText		String
-  HiLink podOverIndent		Number
-  HiLink podForKeywd		Identifier
-  HiLink podFormat		Identifier
-  HiLink podVerbatimLine	PreProc
-  HiLink podSpecial		Identifier
-  HiLink podEscape		String
-  HiLink podEscape2		Number
+HiLink podCommand		Statement
+HiLink podCmdText		String
+HiLink podOverIndent		Number
+HiLink podForKeywd		Identifier
+HiLink podFormat		Identifier
+HiLink podVerbatimLine	PreProc
+HiLink podSpecial		Identifier
+HiLink podEscape		String
+HiLink podEscape2		Number
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 if exists("perl_pod_spellcheck_headings")
   " Spell-check headings
diff --git a/runtime/syntax/postscr.vim b/runtime/syntax/postscr.vim
--- a/runtime/syntax/postscr.vim
+++ b/runtime/syntax/postscr.vim
@@ -13,11 +13,8 @@
 " postscr_encodings             - highlight encoding names (there are a lot)
 " postscr_andornot_binary       - highlight and, or, and not as binary operators (not logical)
 "
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -25,11 +22,7 @@ endif
 syn case match
 
 " Keyword characters - all 7-bit ASCII bar PS delimiters and ws
-if version >= 600
-  setlocal iskeyword=33-127,^(,^),^<,^>,^[,^],^{,^},^/,^%
-else
-  set iskeyword=33-127,^(,^),^<,^>,^[,^],^{,^},^/,^%
-endif
+setlocal iskeyword=33-127,^(,^),^<,^>,^[,^],^{,^},^/,^%
 
 " Yer trusty old TODO highlghter!
 syn keyword postscrTodo contained  TODO
@@ -730,67 +723,59 @@ if exists("postscr_ghostscript")
 endif " GhostScript highlighting
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_postscr_syntax_inits")
-  if version < 508
-    let did_postscr_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink postscrComment         Comment
+HiLink postscrComment         Comment
 
-  HiLink postscrConstant        Constant
-  HiLink postscrString          String
-  HiLink postscrASCIIString     postscrString
-  HiLink postscrHexString       postscrString
-  HiLink postscrASCII85String   postscrString
-  HiLink postscrNumber          Number
-  HiLink postscrInteger         postscrNumber
-  HiLink postscrHex             postscrNumber
-  HiLink postscrRadix           postscrNumber
-  HiLink postscrFloat           Float
-  HiLink postscrBoolean         Boolean
+HiLink postscrConstant        Constant
+HiLink postscrString          String
+HiLink postscrASCIIString     postscrString
+HiLink postscrHexString       postscrString
+HiLink postscrASCII85String   postscrString
+HiLink postscrNumber          Number
+HiLink postscrInteger         postscrNumber
+HiLink postscrHex             postscrNumber
+HiLink postscrRadix           postscrNumber
+HiLink postscrFloat           Float
+HiLink postscrBoolean         Boolean
 
-  HiLink postscrIdentifier      Identifier
-  HiLink postscrProcedure       Function
+HiLink postscrIdentifier      Identifier
+HiLink postscrProcedure       Function
 
-  HiLink postscrName            Statement
-  HiLink postscrConditional     Conditional
-  HiLink postscrRepeat          Repeat
-  HiLink postscrL2Repeat        postscrRepeat
-  HiLink postscrOperator        Operator
-  HiLink postscrL1Operator      postscrOperator
-  HiLink postscrL2Operator      postscrOperator
-  HiLink postscrL3Operator      postscrOperator
-  HiLink postscrMathOperator    postscrOperator
-  HiLink postscrLogicalOperator postscrOperator
-  HiLink postscrBinaryOperator  postscrOperator
+HiLink postscrName            Statement
+HiLink postscrConditional     Conditional
+HiLink postscrRepeat          Repeat
+HiLink postscrL2Repeat        postscrRepeat
+HiLink postscrOperator        Operator
+HiLink postscrL1Operator      postscrOperator
+HiLink postscrL2Operator      postscrOperator
+HiLink postscrL3Operator      postscrOperator
+HiLink postscrMathOperator    postscrOperator
+HiLink postscrLogicalOperator postscrOperator
+HiLink postscrBinaryOperator  postscrOperator
 
-  HiLink postscrDSCComment      SpecialComment
-  HiLink postscrSpecialChar     SpecialChar
+HiLink postscrDSCComment      SpecialComment
+HiLink postscrSpecialChar     SpecialChar
 
-  HiLink postscrTodo            Todo
+HiLink postscrTodo            Todo
 
-  HiLink postscrError           Error
-  HiLink postscrSpecialCharError postscrError
-  HiLink postscrASCII85CharError postscrError
-  HiLink postscrHexCharError    postscrError
-  HiLink postscrASCIIStringError postscrError
-  HiLink postscrIdentifierError postscrError
+HiLink postscrError           Error
+HiLink postscrSpecialCharError postscrError
+HiLink postscrASCII85CharError postscrError
+HiLink postscrHexCharError    postscrError
+HiLink postscrASCIIStringError postscrError
+HiLink postscrIdentifierError postscrError
 
-  if exists("postscr_ghostscript")
-    HiLink postscrGSOperator      postscrOperator
-    HiLink postscrGSMathOperator  postscrMathOperator
-  else
-    HiLink postscrGSOperator      postscrError
-    HiLink postscrGSMathOperator  postscrError
-  endif
+if exists("postscr_ghostscript")
+HiLink postscrGSOperator      postscrOperator
+HiLink postscrGSMathOperator  postscrMathOperator
+else
+HiLink postscrGSOperator      postscrError
+HiLink postscrGSMathOperator  postscrError
+endif
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "postscr"
 
diff --git a/runtime/syntax/pov.vim b/runtime/syntax/pov.vim
--- a/runtime/syntax/pov.vim
+++ b/runtime/syntax/pov.vim
@@ -5,14 +5,8 @@
 " Required Vim Version: 6.0
 
 " Setup
-if version >= 600
-  " Quit when a syntax file was already loaded
-  if exists("b:current_syntax")
-    finish
-  endif
-else
-  " Croak when an old Vim is sourcing us.
-  echo "Sorry, but this syntax file relies on Vim 6 features.  Either upgrade Vim or use a version of " . expand("<sfile>:t:r") . " syntax file appropriate for Vim " . version/100 . "." . version %100 . "."
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/povini.vim b/runtime/syntax/povini.vim
--- a/runtime/syntax/povini.vim
+++ b/runtime/syntax/povini.vim
@@ -5,14 +5,8 @@
 " Required Vim Version: 6.0
 
 " Setup
-if version >= 600
-  " Quit when a syntax file was already loaded
-  if exists("b:current_syntax")
-    finish
-  endif
-else
-  " Croak when an old Vim is sourcing us.
-  echo "Sorry, but this syntax file relies on Vim 6 features.  Either upgrade Vim or usea version of " . expand("<sfile>:t:r") . " syntax file appropriate for Vim " . version/100 . "." . version %100 . "."
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/ppd.vim b/runtime/syntax/ppd.vim
--- a/runtime/syntax/ppd.vim
+++ b/runtime/syntax/ppd.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Bjoern Jacke <bjacke@suse.de>
 " Last Change:	2001-10-06
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -21,27 +18,19 @@ syn match	ppdGUIText	"/.*:"
 syn match	ppdContraints	"^*UIConstraints:"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_ahdl_syn_inits")
-  if version < 508
-    let did_ahdl_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
 
-  HiLink ppdComment		Comment
-  HiLink ppdDefine		Statement
-  HiLink ppdUI			Function
-  HiLink ppdUIGroup		Function
-  HiLink ppdDef			String
-  HiLink ppdGUIText		Type
-  HiLink ppdContraints		Special
+HiLink ppdComment		Comment
+HiLink ppdDefine		Statement
+HiLink ppdUI			Function
+HiLink ppdUIGroup		Function
+HiLink ppdDef			String
+HiLink ppdGUIText		Type
+HiLink ppdContraints		Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "ppd"
 
diff --git a/runtime/syntax/ppwiz.vim b/runtime/syntax/ppwiz.vim
--- a/runtime/syntax/ppwiz.vim
+++ b/runtime/syntax/ppwiz.vim
@@ -6,11 +6,8 @@
 " Filename:     ppwiz.vim
 
 " Remove old syntax stuff
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -63,33 +60,25 @@ syn match   ppwizInteger  "\d\+" contain
 syn cluster ppwizArgVal add=ppwizString,ppwizInteger
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_ppwiz_syn_inits")
-    if version < 508
-		let did_ppwiz_syn_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-    endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-    HiLink ppwizSpecial  Special
-    HiLink ppwizEqual    ppwizSpecial
-    HiLink ppwizOperator ppwizSpecial
-    HiLink ppwizComment  Comment
-    HiLink ppwizDef      PreProc
-    HiLink ppwizMacro    Statement
-    HiLink ppwizArg      Identifier
-    HiLink ppwizStdVar   Identifier
-    HiLink ppwizRexxVar  Identifier
-    HiLink ppwizString   Constant
-    HiLink ppwizInteger  Constant
-    HiLink ppwizCont     ppwizSpecial
-    HiLink ppwizError    Error
-    HiLink ppwizHTML     Type
+HiLink ppwizSpecial  Special
+HiLink ppwizEqual    ppwizSpecial
+HiLink ppwizOperator ppwizSpecial
+HiLink ppwizComment  Comment
+HiLink ppwizDef      PreProc
+HiLink ppwizMacro    Statement
+HiLink ppwizArg      Identifier
+HiLink ppwizStdVar   Identifier
+HiLink ppwizRexxVar  Identifier
+HiLink ppwizString   Constant
+HiLink ppwizInteger  Constant
+HiLink ppwizCont     ppwizSpecial
+HiLink ppwizError    Error
+HiLink ppwizHTML     Type
 
-    delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "ppwiz"
 
diff --git a/runtime/syntax/prescribe.vim b/runtime/syntax/prescribe.vim
--- a/runtime/syntax/prescribe.vim
+++ b/runtime/syntax/prescribe.vim
@@ -4,11 +4,8 @@
 " URL:          http://www.hampft.de/vim/syntax/prescribe.vim
 " Last Change:	2005 Mar 04
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -44,25 +41,17 @@ syn region  prescribeString	start=+'+ en
 syn region  prescribeComment	start=+CMNT+ end=+;+
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_prescribe_syn_inits")
-  if version < 508
-    let did_prescribe_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink prescribeSpecial		PreProc
-  HiLink prescribeStatement		Statement
-  HiLink prescribeNumber		Number
-  HiLink prescribeCSETArg		String
-  HiLink prescribeFRPOArg		String
-  HiLink prescribeComment		Comment
+HiLink prescribeSpecial		PreProc
+HiLink prescribeStatement		Statement
+HiLink prescribeNumber		Number
+HiLink prescribeCSETArg		String
+HiLink prescribeFRPOArg		String
+HiLink prescribeComment		Comment
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "prescribe"
 
diff --git a/runtime/syntax/procmail.vim b/runtime/syntax/procmail.vim
--- a/runtime/syntax/procmail.vim
+++ b/runtime/syntax/procmail.vim
@@ -4,11 +4,8 @@
 " Last Change:	2003 Aug 14
 " Author:	Sonia Heimann
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -33,34 +30,26 @@ syn region procmailActionNested start=+^
 syn region procmailRecipe start=+^\s*:.*$+ end=+^\s*\($\|}\)+me=e-1 contains=procmailComment,procmailCondition,procmailActionFolder,procmailActionVariable,procmailActionForward,procmailActionPipe,procmailActionNested,procmailVarDeclRegion
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_procmail_syntax_inits")
-  if version < 508
-    let did_procmail_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink procmailComment Comment
-  HiLink procmailTodo    Todo
+HiLink procmailComment Comment
+HiLink procmailTodo    Todo
+
+HiLink procmailRecipe   Statement
+"HiLink procmailCondition   Statement
 
-  HiLink procmailRecipe   Statement
-  "HiLink procmailCondition   Statement
+HiLink procmailActionFolder	procmailAction
+HiLink procmailActionVariable procmailAction
+HiLink procmailActionForward	procmailAction
+HiLink procmailActionPipe	procmailAction
+HiLink procmailAction		Function
+HiLink procmailVar		Identifier
+HiLink procmailVarDecl	Identifier
 
-  HiLink procmailActionFolder	procmailAction
-  HiLink procmailActionVariable procmailAction
-  HiLink procmailActionForward	procmailAction
-  HiLink procmailActionPipe	procmailAction
-  HiLink procmailAction		Function
-  HiLink procmailVar		Identifier
-  HiLink procmailVarDecl	Identifier
+HiLink procmailString String
 
-  HiLink procmailString String
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "procmail"
 
diff --git a/runtime/syntax/progress.vim b/runtime/syntax/progress.vim
--- a/runtime/syntax/progress.vim
+++ b/runtime/syntax/progress.vim
@@ -11,22 +11,15 @@
 " Version:              13
 " Last Change:		Nov 11 2012
 
-" For version 5.x: Clear all syntax item
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
 let s:cpo_save = &cpo
 set cpo&vim
 
-if version >= 600
-  setlocal iskeyword=@,48-57,_,-,!,#,$,%
-else
-  set iskeyword=@,48-57,_,-,!,#,$,%
-endif
+setlocal iskeyword=@,48-57,_,-,!,#,$,%
 
 " The Progress editor doesn't cope with tabs very well.
 set expandtab
@@ -282,44 +275,36 @@ syn keyword ProgressType	char[acter] int
 syn sync lines=800
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_progress_syntax_inits")
-	if version < 508
-		let did_progress_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	" The default methods for highlighting. Can be overridden later.
-	HiLink ProgressByte		Number
-	HiLink ProgressCase		Repeat
-	HiLink ProgressComment		Comment
-	HiLink ProgressConditional	Conditional
-	HiLink ProgressDebug		Debug
-	HiLink ProgressDo		Repeat
-	HiLink ProgressEndError		Error
-	HiLink ProgressFor		Repeat
-	HiLink ProgressFunction		Procedure
-	HiLink ProgressIdentifier	Identifier
-	HiLink ProgressInclude		Include
-	HiLink ProgressMatrixDelimiter	Identifier
-	HiLink ProgressNumber		Number
-	HiLink ProgressOperator		Operator
-	HiLink ProgressPreProc		PreProc
-	HiLink ProgressProcedure	Procedure
-	HiLink ProgressQuote		Delimiter
-	HiLink ProgressRepeat		Repeat
-	HiLink ProgressReserved		Statement
-	HiLink ProgressSpaceError	Error
-	HiLink ProgressString		String
-	HiLink ProgressTodo		Todo
-	HiLink ProgressType		Statement
-	HiLink ProgressShowTab		Error
+" The default methods for highlighting. Can be overridden later.
+HiLink ProgressByte		Number
+HiLink ProgressCase		Repeat
+HiLink ProgressComment		Comment
+HiLink ProgressConditional	Conditional
+HiLink ProgressDebug		Debug
+HiLink ProgressDo		Repeat
+HiLink ProgressEndError		Error
+HiLink ProgressFor		Repeat
+HiLink ProgressFunction		Procedure
+HiLink ProgressIdentifier	Identifier
+HiLink ProgressInclude		Include
+HiLink ProgressMatrixDelimiter	Identifier
+HiLink ProgressNumber		Number
+HiLink ProgressOperator		Operator
+HiLink ProgressPreProc		PreProc
+HiLink ProgressProcedure	Procedure
+HiLink ProgressQuote		Delimiter
+HiLink ProgressRepeat		Repeat
+HiLink ProgressReserved		Statement
+HiLink ProgressSpaceError	Error
+HiLink ProgressString		String
+HiLink ProgressTodo		Todo
+HiLink ProgressType		Statement
+HiLink ProgressShowTab		Error
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "progress"
 
diff --git a/runtime/syntax/prolog.vim b/runtime/syntax/prolog.vim
--- a/runtime/syntax/prolog.vim
+++ b/runtime/syntax/prolog.vim
@@ -8,10 +8,8 @@
 " If the "prolog_highlighting_clean" variable exists, it is rather sparse.
 " Otherwise you get more highlighting.
 
-" Quit when a syntax file was already loaded
-if version < 600
-   syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -78,45 +76,37 @@ syn sync maxlines=50
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_prolog_syn_inits")
-  if version < 508
-    let did_prolog_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+" The default highlighting.
+HiLink prologComment          Comment
+HiLink prologCComment         Comment
+HiLink prologCharCode         Special
 
-  " The default highlighting.
-  HiLink prologComment          Comment
-  HiLink prologCComment         Comment
-  HiLink prologCharCode         Special
+if exists ("prolog_highlighting_clean")
 
-  if exists ("prolog_highlighting_clean")
+HiLink prologKeyword        Statement
+HiLink prologClauseHead     Statement
+HiLink prologClause Normal
+
+else
 
-    HiLink prologKeyword        Statement
-    HiLink prologClauseHead     Statement
-    HiLink prologClause Normal
-
-  else
+HiLink prologKeyword        Keyword
+HiLink prologClauseHead     Constant
+HiLink prologClause Normal
+HiLink prologQuestion       PreProc
+HiLink prologSpecialCharacter Special
+HiLink prologNumber         Number
+HiLink prologAsIs           Normal
+HiLink prologCommentError   Error
+HiLink prologAtom           String
+HiLink prologString         String
+HiLink prologOperator       Operator
 
-    HiLink prologKeyword        Keyword
-    HiLink prologClauseHead     Constant
-    HiLink prologClause Normal
-    HiLink prologQuestion       PreProc
-    HiLink prologSpecialCharacter Special
-    HiLink prologNumber         Number
-    HiLink prologAsIs           Normal
-    HiLink prologCommentError   Error
-    HiLink prologAtom           String
-    HiLink prologString         String
-    HiLink prologOperator       Operator
+endif
 
-  endif
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "prolog"
 
diff --git a/runtime/syntax/promela.vim b/runtime/syntax/promela.vim
--- a/runtime/syntax/promela.vim
+++ b/runtime/syntax/promela.vim
@@ -5,11 +5,8 @@
 " Last Change:		Thu Aug 7 21:22:48 CEST 2008
 " Version:			0.5
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/proto.vim b/runtime/syntax/proto.vim
--- a/runtime/syntax/proto.vim
+++ b/runtime/syntax/proto.vim
@@ -22,9 +22,8 @@
 "
 " http://code.google.com/p/protobuf/
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/psf.vim b/runtime/syntax/psf.vim
--- a/runtime/syntax/psf.vim
+++ b/runtime/syntax/psf.vim
@@ -4,10 +4,8 @@
 " Maintainer:	Rex Barzee <rex_barzee@hp.com>
 " Last change:	25 Apr 2001
 
-if version < 600
-  " Remove any old syntax stuff hanging around
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -73,27 +71,19 @@ syn match  psfComment "#.*$"
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_psf_syntax_inits")
-  if version < 508
-    let did_psf_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink psfObject       Statement
-  HiLink psfAttrib       Type
-  HiLink psfQuotString   String
-  HiLink psfObjTag       Identifier
-  HiLink psfAttAbbrev    PreProc
-  HiLink psfObjTags      Identifier
+HiLink psfObject       Statement
+HiLink psfAttrib       Type
+HiLink psfQuotString   String
+HiLink psfObjTag       Identifier
+HiLink psfAttAbbrev    PreProc
+HiLink psfObjTags      Identifier
 
-  HiLink psfComment      Comment
+HiLink psfComment      Comment
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 " Long descriptions and copyrights confuse the syntax highlighting, so
 " force vim to backup at least 100 lines before the top visible line
diff --git a/runtime/syntax/ptcap.vim b/runtime/syntax/ptcap.vim
--- a/runtime/syntax/ptcap.vim
+++ b/runtime/syntax/ptcap.vim
@@ -4,11 +4,8 @@
 " URL:		http://folk.uio.no/hakonrk/vim/syntax/ptcap.vim
 " Last Change:	2001 May 15
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -73,34 +70,27 @@ syn region ptcapField	    start=":" skip
 syn region ptcapString	    matchgroup=ptcapOperator start="=" skip="[^\\]\(\\\\\)*\\:" matchgroup=ptcapDelimiter end=":"me=e-1 matchgroup=NONE end="[^\\]\(\\\\\)*[^\\]$" end="^$" contains=ptcapEscapedChar,ptcapLineCont keepend contained
 syn region ptcapComment	    start="^\s*#" end="$" contains=ptcapLeadBlank
 
-if version >= 508 || !exists("did_ptcap_syntax_inits")
-    if version < 508
-	let did_ptcap_syntax_inits = 1
-	command -nargs=+ HiLink hi link <args>
-    else
-	command -nargs=+ HiLink hi def link <args>
-    endif
+command -nargs=+ HiLink hi def link <args>
 
-    HiLink ptcapComment		Comment
-    HiLink ptcapDelimiter	Delimiter
-    " The highlighting of "ptcapEntry" should always be overridden by
-    " its contents, so I use Todo highlighting to indicate that there
-    " is work to be done with the syntax file if you can see it :-)
-    HiLink ptcapEntry		Todo
-    HiLink ptcapError		Error
-    HiLink ptcapEscapedChar	SpecialChar
-    HiLink ptcapField		Type
-    HiLink ptcapLeadBlank	NONE
-    HiLink ptcapLineCont	Special
-    HiLink ptcapNames		Label
-    HiLink ptcapNumber		NONE
-    HiLink ptcapNumberError	Error
-    HiLink ptcapOperator	Operator
-    HiLink ptcapSpecialCap	Type
-    HiLink ptcapString		NONE
+HiLink ptcapComment		Comment
+HiLink ptcapDelimiter	Delimiter
+" The highlighting of "ptcapEntry" should always be overridden by
+" its contents, so I use Todo highlighting to indicate that there
+" is work to be done with the syntax file if you can see it :-)
+HiLink ptcapEntry		Todo
+HiLink ptcapError		Error
+HiLink ptcapEscapedChar	SpecialChar
+HiLink ptcapField		Type
+HiLink ptcapLeadBlank	NONE
+HiLink ptcapLineCont	Special
+HiLink ptcapNames		Label
+HiLink ptcapNumber		NONE
+HiLink ptcapNumberError	Error
+HiLink ptcapOperator	Operator
+HiLink ptcapSpecialCap	Type
+HiLink ptcapString		NONE
 
-    delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "ptcap"
 
diff --git a/runtime/syntax/purifylog.vim b/runtime/syntax/purifylog.vim
--- a/runtime/syntax/purifylog.vim
+++ b/runtime/syntax/purifylog.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Gautam H. Mudunuri <gmudunur@informatica.com>
 " Last Change:	2003 May 11
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -57,62 +54,54 @@ syn match purifyLogZPR "^ZPR:.*$"
 syn match purifyLogZPW "^ZPW:.*$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_purifyLog_syntax_inits")
-  if version < 508
-    let did_purifyLog_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink purifyLogFIU purifyLogInformational
-	HiLink purifyLogMAF purifyLogInformational
-	HiLink purifyLogMIU purifyLogInformational
-	HiLink purifyLogSIG purifyLogInformational
-	HiLink purifyLogWPF purifyLogInformational
-	HiLink purifyLogWPM purifyLogInformational
-	HiLink purifyLogWPN purifyLogInformational
-	HiLink purifyLogWPR purifyLogInformational
-	HiLink purifyLogWPW purifyLogInformational
-	HiLink purifyLogWPX purifyLogInformational
+HiLink purifyLogFIU purifyLogInformational
+HiLink purifyLogMAF purifyLogInformational
+HiLink purifyLogMIU purifyLogInformational
+HiLink purifyLogSIG purifyLogInformational
+HiLink purifyLogWPF purifyLogInformational
+HiLink purifyLogWPM purifyLogInformational
+HiLink purifyLogWPN purifyLogInformational
+HiLink purifyLogWPR purifyLogInformational
+HiLink purifyLogWPW purifyLogInformational
+HiLink purifyLogWPX purifyLogInformational
 
-	HiLink purifyLogABR purifyLogWarning
-	HiLink purifyLogBSR purifyLogWarning
-	HiLink purifyLogBSW purifyLogWarning
-	HiLink purifyLogFMR purifyLogWarning
-	HiLink purifyLogMLK purifyLogWarning
-	HiLink purifyLogMSE purifyLogWarning
-	HiLink purifyLogPAR purifyLogWarning
-	HiLink purifyLogPLK purifyLogWarning
-	HiLink purifyLogSBR purifyLogWarning
-	HiLink purifyLogSOF purifyLogWarning
-	HiLink purifyLogUMC purifyLogWarning
-	HiLink purifyLogUMR purifyLogWarning
+HiLink purifyLogABR purifyLogWarning
+HiLink purifyLogBSR purifyLogWarning
+HiLink purifyLogBSW purifyLogWarning
+HiLink purifyLogFMR purifyLogWarning
+HiLink purifyLogMLK purifyLogWarning
+HiLink purifyLogMSE purifyLogWarning
+HiLink purifyLogPAR purifyLogWarning
+HiLink purifyLogPLK purifyLogWarning
+HiLink purifyLogSBR purifyLogWarning
+HiLink purifyLogSOF purifyLogWarning
+HiLink purifyLogUMC purifyLogWarning
+HiLink purifyLogUMR purifyLogWarning
 
-	HiLink purifyLogABW purifyLogCorrupting
-	HiLink purifyLogBRK purifyLogCorrupting
-	HiLink purifyLogFMW purifyLogCorrupting
-	HiLink purifyLogFNH purifyLogCorrupting
-	HiLink purifyLogFUM purifyLogCorrupting
-	HiLink purifyLogMRE purifyLogCorrupting
-	HiLink purifyLogSBW purifyLogCorrupting
+HiLink purifyLogABW purifyLogCorrupting
+HiLink purifyLogBRK purifyLogCorrupting
+HiLink purifyLogFMW purifyLogCorrupting
+HiLink purifyLogFNH purifyLogCorrupting
+HiLink purifyLogFUM purifyLogCorrupting
+HiLink purifyLogMRE purifyLogCorrupting
+HiLink purifyLogSBW purifyLogCorrupting
 
-	HiLink purifyLogCOR purifyLogFatal
-	HiLink purifyLogNPR purifyLogFatal
-	HiLink purifyLogNPW purifyLogFatal
-	HiLink purifyLogZPR purifyLogFatal
-	HiLink purifyLogZPW purifyLogFatal
+HiLink purifyLogCOR purifyLogFatal
+HiLink purifyLogNPR purifyLogFatal
+HiLink purifyLogNPW purifyLogFatal
+HiLink purifyLogZPR purifyLogFatal
+HiLink purifyLogZPW purifyLogFatal
 
-	HiLink purifyLogHeader		Comment
-	HiLink purifyLogInformational	PreProc
-	HiLink purifyLogWarning		Type
-	HiLink purifyLogCorrupting	Error
-	HiLink purifyLogFatal		Error
+HiLink purifyLogHeader		Comment
+HiLink purifyLogInformational	PreProc
+HiLink purifyLogWarning		Type
+HiLink purifyLogCorrupting	Error
+HiLink purifyLogFatal		Error
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "purifylog"
 
diff --git a/runtime/syntax/pyrex.vim b/runtime/syntax/pyrex.vim
--- a/runtime/syntax/pyrex.vim
+++ b/runtime/syntax/pyrex.vim
@@ -4,21 +4,14 @@
 " URL:		http://marcobari.altervista.org/pyrex_vim.html
 " Last Change:	2009 Nov 09
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " Read the Python syntax to start with
-if version < 600
-  so <sfile>:p:h/python.vim
-else
-  runtime! syntax/python.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/python.vim
+unlet b:current_syntax
 
 " Pyrex extentions
 syn keyword pyrexStatement      cdef typedef ctypedef sizeof
@@ -44,24 +37,17 @@ syn match   pythonInclude     "from"
 syn match   pyrexForFrom        "\(for[^:]*\)\@<=from"
 
 " Default highlighting
-if version >= 508 || !exists("did_pyrex_syntax_inits")
-  if version < 508
-    let did_pyrex_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink pyrexStatement		Statement
-  HiLink pyrexType		Type
-  HiLink pyrexStructure		Structure
-  HiLink pyrexInclude		PreCondit
-  HiLink pyrexAccess		pyrexStatement
-  if exists("python_highlight_builtins") || exists("pyrex_highlight_builtins")
-      HiLink pyrexBuiltin	Function
-  endif
-  HiLink pyrexForFrom		Statement
+command -nargs=+ HiLink hi def link <args>
+HiLink pyrexStatement		Statement
+HiLink pyrexType		Type
+HiLink pyrexStructure		Structure
+HiLink pyrexInclude		PreCondit
+HiLink pyrexAccess		pyrexStatement
+if exists("python_highlight_builtins") || exists("pyrex_highlight_builtins")
+HiLink pyrexBuiltin	Function
+endif
+HiLink pyrexForFrom		Statement
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "pyrex"
diff --git a/runtime/syntax/python.vim b/runtime/syntax/python.vim
--- a/runtime/syntax/python.vim
+++ b/runtime/syntax/python.vim
@@ -36,11 +36,8 @@
 "   let python_highlight_all = 1
 "
 
-" For version 5.x: Clear all syntax items.
-" For version 6.x: Quit when a syntax file was already loaded.
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded.
+if exists("b:current_syntax")
   finish
 endif
 
@@ -292,51 +289,44 @@ endif
 " Sync at the beginning of class, function, or method definition.
 syn sync match pythonSync grouphere NONE "^\s*\%(def\|class\)\s\+\h\w*\s*("
 
-if version >= 508 || !exists("did_python_syn_inits")
-  if version <= 508
-    let did_python_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  " The default highlight links.  Can be overridden later.
-  HiLink pythonStatement	Statement
-  HiLink pythonConditional	Conditional
-  HiLink pythonRepeat		Repeat
-  HiLink pythonOperator		Operator
-  HiLink pythonException	Exception
-  HiLink pythonInclude		Include
-  HiLink pythonAsync		Statement
-  HiLink pythonDecorator	Define
-  HiLink pythonDecoratorName	Function
-  HiLink pythonFunction		Function
-  HiLink pythonComment		Comment
-  HiLink pythonTodo		Todo
-  HiLink pythonString		String
-  HiLink pythonRawString	String
-  HiLink pythonQuotes		String
-  HiLink pythonTripleQuotes	pythonQuotes
-  HiLink pythonEscape		Special
-  if !exists("python_no_number_highlight")
-    HiLink pythonNumber		Number
-  endif
-  if !exists("python_no_builtin_highlight")
-    HiLink pythonBuiltin	Function
-  endif
-  if !exists("python_no_exception_highlight")
-    HiLink pythonExceptions	Structure
-  endif
-  if exists("python_space_error_highlight")
-    HiLink pythonSpaceError	Error
-  endif
-  if !exists("python_no_doctest_highlight")
-    HiLink pythonDoctest	Special
-    HiLink pythonDoctestValue	Define
-  endif
+" The default highlight links.  Can be overridden later.
+HiLink pythonStatement	Statement
+HiLink pythonConditional	Conditional
+HiLink pythonRepeat		Repeat
+HiLink pythonOperator		Operator
+HiLink pythonException	Exception
+HiLink pythonInclude		Include
+HiLink pythonAsync		Statement
+HiLink pythonDecorator	Define
+HiLink pythonDecoratorName	Function
+HiLink pythonFunction		Function
+HiLink pythonComment		Comment
+HiLink pythonTodo		Todo
+HiLink pythonString		String
+HiLink pythonRawString	String
+HiLink pythonQuotes		String
+HiLink pythonTripleQuotes	pythonQuotes
+HiLink pythonEscape		Special
+if !exists("python_no_number_highlight")
+  HiLink pythonNumber		Number
+endif
+if !exists("python_no_builtin_highlight")
+  HiLink pythonBuiltin	Function
+endif
+if !exists("python_no_exception_highlight")
+  HiLink pythonExceptions	Structure
+endif
+if exists("python_space_error_highlight")
+  HiLink pythonSpaceError	Error
+endif
+if !exists("python_no_doctest_highlight")
+  HiLink pythonDoctest	Special
+  HiLink pythonDoctestValue	Define
+endif
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "python"
 
diff --git a/runtime/syntax/radiance.vim b/runtime/syntax/radiance.vim
--- a/runtime/syntax/radiance.vim
+++ b/runtime/syntax/radiance.vim
@@ -18,20 +18,13 @@
 " comments, external command names and the null-modifier "void".
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " all printing characters except '#' and '!' are valid in names.
-if version >= 600
-  setlocal iskeyword=\",$-~
-else
-  set iskeyword=\",$-~
-endif
+setlocal iskeyword=\",$-~
 
 " The null-modifier
 syn keyword radianceKeyword void
@@ -130,29 +123,21 @@ syn keyword radianceTodo contained TODO 
 syn match radianceComment "#.*$" contains=radianceTodo
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_radiance_syn_inits")
-  if version < 508
-    let did_radiance_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink radianceKeyword	Keyword
-  HiLink radianceExtraType	Type
-  HiLink radianceSurfType	Type
-  HiLink radianceLightType	Type
-  HiLink radianceMatType	Type
-  HiLink radiancePatType	Type
-  HiLink radianceTexType	Type
-  HiLink radianceMixType	Type
-  HiLink radianceComment	Comment
-  HiLink radianceCommand	Function
-  HiLink radianceID		String
-  HiLink radianceTodo		Todo
-  delcommand HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink radianceKeyword	Keyword
+HiLink radianceExtraType	Type
+HiLink radianceSurfType	Type
+HiLink radianceLightType	Type
+HiLink radianceMatType	Type
+HiLink radiancePatType	Type
+HiLink radianceTexType	Type
+HiLink radianceMixType	Type
+HiLink radianceComment	Comment
+HiLink radianceCommand	Function
+HiLink radianceID		String
+HiLink radianceTodo		Todo
+delcommand HiLink
 
 let b:current_syntax = "radiance"
 
diff --git a/runtime/syntax/ratpoison.vim b/runtime/syntax/ratpoison.vim
--- a/runtime/syntax/ratpoison.vim
+++ b/runtime/syntax/ratpoison.vim
@@ -5,11 +5,8 @@
 " Last Change:	2011 Apr 11
 " Previous Maintainer:	Doug Kearns <djkea2@gus.gscit.monash.edu.au>
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -247,33 +244,25 @@ syn match   ratpoisonVoidCommand	"^\s*\z
 syn match   ratpoisonVoidCommand	"^\s*\zswindows\ze\s*$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_ratpoison_syn_inits")
-  if version < 508
-    let did_ratpoison_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink ratpoisonBooleanArg	Boolean
-  HiLink ratpoisonCommandArg	Keyword
-  HiLink ratpoisonComment	Comment
-  HiLink ratpoisonDefCommand	Identifier
-  HiLink ratpoisonGravityArg	Constant
-  HiLink ratpoisonKeySeqArg	Special
-  HiLink ratpoisonNumberArg	Number
-  HiLink ratpoisonSetArg	Keyword
-  HiLink ratpoisonStringCommand	Identifier
-  HiLink ratpoisonTodo		Todo
-  HiLink ratpoisonVoidCommand	Identifier
-  HiLink ratpoisonWinFmtArg	Special
-  HiLink ratpoisonWinNameArg	Constant
-  HiLink ratpoisonWinListArg	Constant
+HiLink ratpoisonBooleanArg	Boolean
+HiLink ratpoisonCommandArg	Keyword
+HiLink ratpoisonComment	Comment
+HiLink ratpoisonDefCommand	Identifier
+HiLink ratpoisonGravityArg	Constant
+HiLink ratpoisonKeySeqArg	Special
+HiLink ratpoisonNumberArg	Number
+HiLink ratpoisonSetArg	Keyword
+HiLink ratpoisonStringCommand	Identifier
+HiLink ratpoisonTodo		Todo
+HiLink ratpoisonVoidCommand	Identifier
+HiLink ratpoisonWinFmtArg	Special
+HiLink ratpoisonWinNameArg	Constant
+HiLink ratpoisonWinListArg	Constant
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "ratpoison"
 
diff --git a/runtime/syntax/rc.vim b/runtime/syntax/rc.vim
--- a/runtime/syntax/rc.vim
+++ b/runtime/syntax/rc.vim
@@ -8,11 +8,8 @@
 
 " This file is based on the c.vim
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -148,55 +145,47 @@ syn region rcPreProc		start="^\s*#\s*\(p
 syn sync ccomment rcComment minlines=10
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_rc_syntax_inits")
-  if version < 508
-    let did_rc_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink rcCharacter	Character
-  HiLink rcSpecialCharacter rcSpecial
-  HiLink rcNumber	Number
-  HiLink rcFloat	Float
-  HiLink rcOctalError	rcError
-  HiLink rcParenError	rcError
-  HiLink rcInParen	rcError
-  HiLink rcCommentError	rcError
-  HiLink rcInclude	Include
-  HiLink rcPreProc	PreProc
-  HiLink rcDefine	Macro
-  HiLink rcIncluded	rcString
-  HiLink rcError	Error
-  HiLink rcPreCondit	PreCondit
-  HiLink rcCommentString rcString
-  HiLink rcComment2String rcString
-  HiLink rcCommentSkip	rcComment
-  HiLink rcString	String
-  HiLink rcComment	Comment
-  HiLink rcSpecial	SpecialChar
-  HiLink rcTodo	Todo
+HiLink rcCharacter	Character
+HiLink rcSpecialCharacter rcSpecial
+HiLink rcNumber	Number
+HiLink rcFloat	Float
+HiLink rcOctalError	rcError
+HiLink rcParenError	rcError
+HiLink rcInParen	rcError
+HiLink rcCommentError	rcError
+HiLink rcInclude	Include
+HiLink rcPreProc	PreProc
+HiLink rcDefine	Macro
+HiLink rcIncluded	rcString
+HiLink rcError	Error
+HiLink rcPreCondit	PreCondit
+HiLink rcCommentString rcString
+HiLink rcComment2String rcString
+HiLink rcCommentSkip	rcComment
+HiLink rcString	String
+HiLink rcComment	Comment
+HiLink rcSpecial	SpecialChar
+HiLink rcTodo	Todo
 
-  HiLink rcAttribute	rcCommonAttribute
-  HiLink rcStdId	rcStatement
-  HiLink rcStatement	Statement
+HiLink rcAttribute	rcCommonAttribute
+HiLink rcStdId	rcStatement
+HiLink rcStatement	Statement
 
-  " Default color overrides
-  hi def rcLanguage	term=reverse ctermbg=Red ctermfg=Yellow guibg=Red guifg=Yellow
-  hi def rcMainObject	term=underline ctermfg=Blue guifg=Blue
-  hi def rcSubObject	ctermfg=Green guifg=Green
-  hi def rcCaptionParam	term=underline ctermfg=DarkGreen guifg=Green
-  hi def rcParam	ctermfg=DarkGreen guifg=DarkGreen
-  hi def rcStatement	ctermfg=DarkGreen guifg=DarkGreen
-  hi def rcCommonAttribute	ctermfg=Brown guifg=Brown
+" Default color overrides
+hi def rcLanguage	term=reverse ctermbg=Red ctermfg=Yellow guibg=Red guifg=Yellow
+hi def rcMainObject	term=underline ctermfg=Blue guifg=Blue
+hi def rcSubObject	ctermfg=Green guifg=Green
+hi def rcCaptionParam	term=underline ctermfg=DarkGreen guifg=Green
+hi def rcParam	ctermfg=DarkGreen guifg=DarkGreen
+hi def rcStatement	ctermfg=DarkGreen guifg=DarkGreen
+hi def rcCommonAttribute	ctermfg=Brown guifg=Brown
 
-  "HiLink rcIdentifier	Identifier
+"HiLink rcIdentifier	Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "rc"
 
diff --git a/runtime/syntax/rcs.vim b/runtime/syntax/rcs.vim
--- a/runtime/syntax/rcs.vim
+++ b/runtime/syntax/rcs.vim
@@ -9,11 +9,8 @@
 " Options:
 "   rcs_folding = 1   For folding strings
 
-" For version 5.x: Clear all syntax items.
-" For version 6.x: Quit when a syntax file was already loaded.
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded.
+if exists("b:current_syntax")
   finish
 endif
 
@@ -52,25 +49,17 @@ else
 endif
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already.
-" For version 5.8 and later: only when an item doesn't have highlighting yet.
-if version >= 508 || !exists("did_rcs_syn_inits")
-  if version <= 508
-    let did_rcs_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet.
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink rcsKeyword     Keyword
-  HiLink rcsNumber      Identifier
-  HiLink rcsString      String
-  HiLink rcsTextStr     String
-  HiLink rcsSpecial     Special
-  HiLink rcsDiffLines   Special
-  HiLink rcsEOFError    Error
+HiLink rcsKeyword     Keyword
+HiLink rcsNumber      Identifier
+HiLink rcsString      String
+HiLink rcsTextStr     String
+HiLink rcsSpecial     Special
+HiLink rcsDiffLines   Special
+HiLink rcsEOFError    Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "rcs"
diff --git a/runtime/syntax/rcslog.vim b/runtime/syntax/rcslog.vim
--- a/runtime/syntax/rcslog.vim
+++ b/runtime/syntax/rcslog.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Joe Karthauser <joe@freebsd.org>
 " Last Change:	2001 May 09
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -16,22 +13,14 @@ syn match rcslogFile		"^RCS file:.*"
 syn match rcslogDate		"^date: .*$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_rcslog_syntax_inits")
-  if version < 508
-    let did_rcslog_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink rcslogFile		Type
-  HiLink rcslogRevision	Constant
-  HiLink rcslogDate		Identifier
+HiLink rcslogFile		Type
+HiLink rcslogRevision	Constant
+HiLink rcslogDate		Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "rcslog"
 
diff --git a/runtime/syntax/rebol.vim b/runtime/syntax/rebol.vim
--- a/runtime/syntax/rebol.vim
+++ b/runtime/syntax/rebol.vim
@@ -6,11 +6,8 @@
 " URL:		http://www.eandem.co.uk/mrw/vim
 "
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -18,11 +15,7 @@ endif
 syn case ignore
 
 " As per current users documentation
-if version < 600
-  set isk=@,48-57,?,!,.,',+,-,*,&,\|,=,_,~
-else
-  setlocal isk=@,48-57,?,!,.,',+,-,*,&,\|,=,_,~
-endif
+setlocal isk=@,48-57,?,!,.,',+,-,*,&,\|,=,_,~
 
 " Yer TODO highlighter
 syn keyword	rebolTodo	contained TODO
@@ -145,65 +138,57 @@ syn keyword     rebolConstant   none
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_rebol_syntax_inits")
-  if version < 508
-    let did_rebol_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink rebolTodo     Todo
 
-  HiLink rebolTodo     Todo
+HiLink rebolStatement Statement
+HiLink rebolLabel	Label
+HiLink rebolConditional Conditional
+HiLink rebolRepeat	Repeat
 
-  HiLink rebolStatement Statement
-  HiLink rebolLabel	Label
-  HiLink rebolConditional Conditional
-  HiLink rebolRepeat	Repeat
+HiLink rebolOperator	Operator
+HiLink rebolLogicOperator rebolOperator
+HiLink rebolLogicFunction rebolLogicOperator
+HiLink rebolMathOperator rebolOperator
+HiLink rebolMathFunction rebolMathOperator
+HiLink rebolBinaryOperator rebolOperator
+HiLink rebolBinaryFunction rebolBinaryOperator
 
-  HiLink rebolOperator	Operator
-  HiLink rebolLogicOperator rebolOperator
-  HiLink rebolLogicFunction rebolLogicOperator
-  HiLink rebolMathOperator rebolOperator
-  HiLink rebolMathFunction rebolMathOperator
-  HiLink rebolBinaryOperator rebolOperator
-  HiLink rebolBinaryFunction rebolBinaryOperator
+HiLink rebolType     Type
+HiLink rebolTypeFunction rebolOperator
 
-  HiLink rebolType     Type
-  HiLink rebolTypeFunction rebolOperator
+HiLink rebolWord     Identifier
+HiLink rebolWordPath rebolWord
+HiLink rebolFunction	Function
 
-  HiLink rebolWord     Identifier
-  HiLink rebolWordPath rebolWord
-  HiLink rebolFunction	Function
-
-  HiLink rebolCharacter Character
-  HiLink rebolSpecialCharacter SpecialChar
-  HiLink rebolString	String
+HiLink rebolCharacter Character
+HiLink rebolSpecialCharacter SpecialChar
+HiLink rebolString	String
 
-  HiLink rebolNumber   Number
-  HiLink rebolInteger  rebolNumber
-  HiLink rebolDecimal  rebolNumber
-  HiLink rebolTime     rebolNumber
-  HiLink rebolDate     rebolNumber
-  HiLink rebolMoney    rebolNumber
-  HiLink rebolBinary   rebolNumber
-  HiLink rebolEmail    rebolString
-  HiLink rebolFile     rebolString
-  HiLink rebolURL      rebolString
-  HiLink rebolIssue    rebolNumber
-  HiLink rebolTuple    rebolNumber
-  HiLink rebolFloat    Float
-  HiLink rebolBoolean  Boolean
+HiLink rebolNumber   Number
+HiLink rebolInteger  rebolNumber
+HiLink rebolDecimal  rebolNumber
+HiLink rebolTime     rebolNumber
+HiLink rebolDate     rebolNumber
+HiLink rebolMoney    rebolNumber
+HiLink rebolBinary   rebolNumber
+HiLink rebolEmail    rebolString
+HiLink rebolFile     rebolString
+HiLink rebolURL      rebolString
+HiLink rebolIssue    rebolNumber
+HiLink rebolTuple    rebolNumber
+HiLink rebolFloat    Float
+HiLink rebolBoolean  Boolean
 
-  HiLink rebolConstant Constant
+HiLink rebolConstant Constant
 
-  HiLink rebolComment	Comment
+HiLink rebolComment	Comment
 
-  HiLink rebolError	Error
+HiLink rebolError	Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 if exists("my_rebol_file")
   if file_readable(expand(my_rebol_file))
diff --git a/runtime/syntax/redif.vim b/runtime/syntax/redif.vim
--- a/runtime/syntax/redif.vim
+++ b/runtime/syntax/redif.vim
@@ -7,10 +7,8 @@
 " File Extension:    rdf
 " Note:              The ReDIF format is used by RePEc.
 
-" To be compatible with Vim 5.8 use:
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/registry.vim b/runtime/syntax/registry.vim
--- a/runtime/syntax/registry.vim
+++ b/runtime/syntax/registry.vim
@@ -6,11 +6,8 @@
 "		Included patch from Alexander A. Ulitin
 
 " clear any unwanted syntax defs
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -85,29 +82,22 @@ syn match registryHex		"^\s*\([0-9a-fA-F
 " Dword (32 bits)
 syn match registryDword		"dword:[0-9a-fA-F]\{8}$" contains=registrySpecial
 
-if version >= 508 || !exists("did_registry_syntax_inits")
-  if version < 508
-    let did_registry_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
 " The default methods for highlighting.  Can be overridden later
-   HiLink registryComment	Comment
-   HiLink registryHead		Constant
-   HiLink registryHKEY		Constant
-   HiLink registryPath		Special
-   HiLink registryRemove	PreProc
-   HiLink registryGUID		Identifier
-   HiLink registrySpecial	Special
-   HiLink registrySubKey	Type
-   HiLink registryString	String
-   HiLink registryHex		Number
-   HiLink registryDword		Number
+HiLink registryComment	Comment
+HiLink registryHead		Constant
+HiLink registryHKEY		Constant
+HiLink registryPath		Special
+HiLink registryRemove	PreProc
+HiLink registryGUID		Identifier
+HiLink registrySpecial	Special
+HiLink registrySubKey	Type
+HiLink registryString	String
+HiLink registryHex		Number
+HiLink registryDword		Number
 
-   delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "registry"
diff --git a/runtime/syntax/remind.vim b/runtime/syntax/remind.vim
--- a/runtime/syntax/remind.vim
+++ b/runtime/syntax/remind.vim
@@ -13,9 +13,8 @@
 " version 0.7: updated email and link
 " version 0.6: added THROUGH keyword (courtesy of Ben Orchard)
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -48,35 +47,28 @@ syn match remindDates		"'[0-9]\{4}[/-][0
 syn match remindWarning		display excludenl "\S\s\+$"ms=s+1
 
 
-if version >= 508 || !exists("did_remind_syn_inits")
-  if version < 508
-    let did_remind_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink remindCommands		Function
-  HiLink remindExpiry		Repeat
-  HiLink remindTag		Label
-  HiLink remindTimed		Statement
-  HiLink remindMove		Statement
-  HiLink remindSpecial		Include
-  HiLink remindRun		Function
-  HiLink remindConditional	Conditional
-  HiLink remindComment		Comment
-  HiLink remindTimes		String
-  HiLink remindString		String
-  HiLink remindDebug		Debug
-  HiLink remindVar		Identifier
-  HiLink remindSubst		Constant
-  HiLink remindAdvanceNumber	Number
-  HiLink remindDateSeparators	Comment
-  HiLink remindDates		String
-  HiLink remindWarning		Error
+HiLink remindCommands		Function
+HiLink remindExpiry		Repeat
+HiLink remindTag		Label
+HiLink remindTimed		Statement
+HiLink remindMove		Statement
+HiLink remindSpecial		Include
+HiLink remindRun		Function
+HiLink remindConditional	Conditional
+HiLink remindComment		Comment
+HiLink remindTimes		String
+HiLink remindString		String
+HiLink remindDebug		Debug
+HiLink remindVar		Identifier
+HiLink remindSubst		Constant
+HiLink remindAdvanceNumber	Number
+HiLink remindDateSeparators	Comment
+HiLink remindDates		String
+HiLink remindWarning		Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "remind"
 
diff --git a/runtime/syntax/resolv.vim b/runtime/syntax/resolv.vim
--- a/runtime/syntax/resolv.vim
+++ b/runtime/syntax/resolv.vim
@@ -9,9 +9,8 @@
 "   David Necas (Yeti) <yeti@physics.muni.cz>
 "   Stefano Zacchiroli <zack@debian.org>
 
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -50,38 +49,31 @@ syn match resolvOption /\<\%(ndots\|time
 " Additional errors
 syn match resolvError /^search .\{257,}/
 
-if version >= 508 || !exists("did_config_syntax_inits")
-	if version < 508
-		let did_config_syntax_inits = 1
-		command! -nargs=+ HiLink hi link <args>
-	else
-		command! -nargs=+ HiLink hi def link <args>
-	endif
+command! -nargs=+ HiLink hi def link <args>
 
-	HiLink resolvIP Number
-	HiLink resolvIPNetmask Number
-	HiLink resolvHostname String
-	HiLink resolvOption String
+HiLink resolvIP Number
+HiLink resolvIPNetmask Number
+HiLink resolvHostname String
+HiLink resolvOption String
+
+HiLink resolvIPNameserver Number
+HiLink resolvHostnameSearch String
+HiLink resolvIPNetmaskSortList Number
 
-	HiLink resolvIPNameserver Number
-	HiLink resolvHostnameSearch String
-	HiLink resolvIPNetmaskSortList Number
+HiLink resolvNameServer Identifier
+HiLink resolvLwserver Identifier
+HiLink resolvDomain Identifier
+HiLink resolvSearch Identifier
+HiLink resolvSortList Identifier
+HiLink resolvOptions Identifier
 
-	HiLink resolvNameServer Identifier
-	HiLink resolvLwserver Identifier
-	HiLink resolvDomain Identifier
-	HiLink resolvSearch Identifier
-	HiLink resolvSortList Identifier
-	HiLink resolvOptions Identifier
+HiLink resolvComment Comment
+HiLink resolvOperator Operator
+HiLink resolvError Error
+HiLink resolvIPError Error
+HiLink resolvIPSpecial Special
 
-	HiLink resolvComment Comment
-	HiLink resolvOperator Operator
-	HiLink resolvError Error
-	HiLink resolvIPError Error
-	HiLink resolvIPSpecial Special
-
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "resolv"
 
diff --git a/runtime/syntax/reva.vim b/runtime/syntax/reva.vim
--- a/runtime/syntax/reva.vim
+++ b/runtime/syntax/reva.vim
@@ -7,13 +7,8 @@
 " Filetypes:	*.rf *.frt
 " NOTE: 	You should also have the ftplugin/reva.vim file to set 'isk'
 
-" For version 5.x: Clear all syntax items and don't load
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-  echo "Reva syntax file requires version 6.0 or later of vim!"
-  finish
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
    finish
 endif
 
diff --git a/runtime/syntax/rexx.vim b/runtime/syntax/rexx.vim
--- a/runtime/syntax/rexx.vim
+++ b/runtime/syntax/rexx.vim
@@ -6,11 +6,8 @@
 " Special Thanks to Dan Sharp <dwsharp@hotmail.com> and Rony G. Flatscher
 " <Rony.Flatscher@wu-wien.ac.at> for comments and additions
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -244,87 +241,79 @@ syn sync linecont "\(,\|-\ze-\@!\)\ze\s*
 exec "syn sync fromstart"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_rexx_syn_inits")
-  if version < 508
-    let did_rexx_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+" make binary and hex strings stand out
+hi rexxStringConstant term=bold,underline ctermfg=5 cterm=bold guifg=darkMagenta gui=bold
 
-  " make binary and hex strings stand out
-  hi rexxStringConstant term=bold,underline ctermfg=5 cterm=bold guifg=darkMagenta gui=bold
+HiLink rexxLabel2		Function
+HiLink doLoopSelectLabelRegion	rexxKeyword
+HiLink endIterateLeaveLabelRegion	rexxKeyword
+HiLink rexxLoopKeywords	rexxKeyword " Todo
 
-  HiLink rexxLabel2		Function
-  HiLink doLoopSelectLabelRegion	rexxKeyword
-  HiLink endIterateLeaveLabelRegion	rexxKeyword
-  HiLink rexxLoopKeywords	rexxKeyword " Todo
-
-  HiLink rexxNumber		Normal "DiffChange
+HiLink rexxNumber		Normal "DiffChange
 "  HiLink rexxIdentifier		DiffChange
 
-  HiLink rexxRegularCallSignal	Statement
-  HiLink rexxExceptionHandling	Statement
+HiLink rexxRegularCallSignal	Statement
+HiLink rexxExceptionHandling	Statement
 
-  HiLink rexxLabel		Function
-  HiLink rexxCharacter		Character
-  HiLink rexxParenError		rexxError
-  HiLink rexxInParen		rexxError
-  HiLink rexxCommentError	rexxError
-  HiLink rexxError		Error
-  HiLink rexxKeyword		Statement
-  HiLink rexxKeywordStatements	Statement
+HiLink rexxLabel		Function
+HiLink rexxCharacter		Character
+HiLink rexxParenError		rexxError
+HiLink rexxInParen		rexxError
+HiLink rexxCommentError	rexxError
+HiLink rexxError		Error
+HiLink rexxKeyword		Statement
+HiLink rexxKeywordStatements	Statement
 
-  HiLink rexxFunction		Function
-  HiLink rexxString		String
-  HiLink rexxComment		Comment
-  HiLink rexxTodo		Todo
-  HiLink rexxSpecialVariable	Special
-  HiLink rexxConditional	rexxKeyword
+HiLink rexxFunction		Function
+HiLink rexxString		String
+HiLink rexxComment		Comment
+HiLink rexxTodo		Todo
+HiLink rexxSpecialVariable	Special
+HiLink rexxConditional	rexxKeyword
 
-  HiLink rexxOperator		Operator
-  HiLink rexxMessageOperator	rexxOperator
-  HiLink rexxLineComment	Comment
+HiLink rexxOperator		Operator
+HiLink rexxMessageOperator	rexxOperator
+HiLink rexxLineComment	Comment
 
-  HiLink rexxLineContinue	WildMenu
+HiLink rexxLineContinue	WildMenu
 
-  HiLink rexxDirective		rexxKeyword
-  HiLink rexxClassDirective	Type
-  HiLink rexxMethodDirective	rexxFunction
-  HiLink rexxAttributeDirective	rexxFunction
-  HiLink rexxRequiresDirective	Include
-  HiLink rexxRoutineDirective	rexxFunction
+HiLink rexxDirective		rexxKeyword
+HiLink rexxClassDirective	Type
+HiLink rexxMethodDirective	rexxFunction
+HiLink rexxAttributeDirective	rexxFunction
+HiLink rexxRequiresDirective	Include
+HiLink rexxRoutineDirective	rexxFunction
 
 " rgf, 2012-09-09
-  HiLink rexxOptionsDirective	rexxFunction
-  HiLink rexxOptionsDirective2  rexxOptionsDirective
-  HiLink rexxOptionsDirective3  Normal " rexxOptionsDirective
+HiLink rexxOptionsDirective	rexxFunction
+HiLink rexxOptionsDirective2  rexxOptionsDirective
+HiLink rexxOptionsDirective3  Normal " rexxOptionsDirective
 
-  HiLink rexxConstantDirective	rexxFunction
+HiLink rexxConstantDirective	rexxFunction
 
-  HiLink rexxConst		Constant
-  HiLink rexxTypeSpecifier	Type
-  HiLink rexxBuiltinClass	rexxTypeSpecifier
+HiLink rexxConst		Constant
+HiLink rexxTypeSpecifier	Type
+HiLink rexxBuiltinClass	rexxTypeSpecifier
 
-  HiLink rexxEnvironmentSymbol  rexxConst
-  HiLink rexxMessage		rexxFunction
+HiLink rexxEnvironmentSymbol  rexxConst
+HiLink rexxMessage		rexxFunction
 
-  HiLink rexxParse              rexxKeyword
-  HiLink rexxParse2             rexxParse
+HiLink rexxParse              rexxKeyword
+HiLink rexxParse2             rexxParse
 
-  HiLink rexxGuard              rexxKeyword
-  HiLink rexxTrace              rexxKeyword
+HiLink rexxGuard              rexxKeyword
+HiLink rexxTrace              rexxKeyword
 
-  HiLink rexxRaise              rexxKeyword
-  HiLink rexxRaise2             rexxRaise
+HiLink rexxRaise              rexxKeyword
+HiLink rexxRaise2             rexxRaise
 
-  HiLink rexxForward            rexxKeyword
-  HiLink rexxForward2           rexxForward
+HiLink rexxForward            rexxKeyword
+HiLink rexxForward2           rexxForward
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "rexx"
 
diff --git a/runtime/syntax/rib.vim b/runtime/syntax/rib.vim
--- a/runtime/syntax/rib.vim
+++ b/runtime/syntax/rib.vim
@@ -4,10 +4,8 @@
 " Last Change:	2003 May 11
 "
 
-" Remove any old syntax stuff hanging around
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -46,26 +44,19 @@ syn match	ribFloat	  display contained "
 syn match	ribFloat	  display contained "[-]\=\d\+e[-+]\d\+\>"
 syn case match
 
-if version >= 508 || !exists("did_rib_syntax_inits")
-  if version < 508
-    let did_rib_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
+
+HiLink ribStructure		Structure
+HiLink ribCommand		Statement
 
-  HiLink ribStructure		Structure
-  HiLink ribCommand		Statement
-
-  HiLink ribStructureComment	SpecialComment
-  HiLink ribLineComment		Comment
+HiLink ribStructureComment	SpecialComment
+HiLink ribLineComment		Comment
 
-  HiLink ribString		String
-  HiLink ribNumber		Number
-  HiLink ribFloat		Float
+HiLink ribString		String
+HiLink ribNumber		Number
+HiLink ribFloat		Float
 
-  delcommand HiLink
-end
+delcommand HiLink
 
 
 let b:current_syntax = "rib"
diff --git a/runtime/syntax/robots.vim b/runtime/syntax/robots.vim
--- a/runtime/syntax/robots.vim
+++ b/runtime/syntax/robots.vim
@@ -5,11 +5,8 @@
 " URL: http://www.mggen.com/vim/syntax/robots.zip
 " Last change:	2001 May 09
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -41,26 +38,19 @@ syn match  robotsUrl		"http[s]\=://\S*"
 syn match  robotsMail		"\S*@\S*"
 syn region robotsString		start=+L\="+ skip=+\\\\\|\\"+ end=+"+
 
-if version >= 508 || !exists("did_robos_syntax_inits")
-  if version < 508
-    let did_robots_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink robotsComment		Comment
-  HiLink robotsAgent		Type
-  HiLink robotsDisallow		Statement
-  HiLink robotsLine		Special
-  HiLink robotsStar		Operator
-  HiLink robotsDelimiter	Delimiter
-  HiLink robotsUrl		String
-  HiLink robotsMail		String
-  HiLink robotsString		String
+HiLink robotsComment		Comment
+HiLink robotsAgent		Type
+HiLink robotsDisallow		Statement
+HiLink robotsLine		Special
+HiLink robotsStar		Operator
+HiLink robotsDelimiter	Delimiter
+HiLink robotsUrl		String
+HiLink robotsMail		String
+HiLink robotsString		String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "robots"
diff --git a/runtime/syntax/rpcgen.vim b/runtime/syntax/rpcgen.vim
--- a/runtime/syntax/rpcgen.vim
+++ b/runtime/syntax/rpcgen.vim
@@ -10,11 +10,7 @@ if exists("b:current_syntax")
 endif
 
 " Read the C syntax to start with
-if version < 600
-  source <sfile>:p:h/c.vim
-else
-  runtime! syntax/c.vim
-endif
+runtime! syntax/c.vim
 
 syn keyword rpcProgram	program				skipnl skipwhite nextgroup=rpcProgName
 syn match   rpcProgName	contained	"\<\i\I*\>"	skipnl skipwhite nextgroup=rpcProgZone
@@ -28,31 +24,23 @@ syn match   rpcProgNmbrErr contained	"=\
 syn match   rpcPassThru			"^\s*%.*$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_rpcgen_syntax_inits")
-  if version < 508
-    let did_rpcgen_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink rpcProgName	rpcName
+HiLink rpcProgram	rpcStatement
+HiLink rpcVersName	rpcName
+HiLink rpcVersion	rpcStatement
 
-  HiLink rpcProgName	rpcName
-  HiLink rpcProgram	rpcStatement
-  HiLink rpcVersName	rpcName
-  HiLink rpcVersion	rpcStatement
-
-  HiLink rpcDecl	cType
-  HiLink rpcPassThru	cComment
+HiLink rpcDecl	cType
+HiLink rpcPassThru	cComment
 
-  HiLink rpcName	Special
-  HiLink rpcProcNmbr	Delimiter
-  HiLink rpcProgNmbrErr	Error
-  HiLink rpcStatement	Statement
+HiLink rpcName	Special
+HiLink rpcProcNmbr	Delimiter
+HiLink rpcProgNmbrErr	Error
+HiLink rpcStatement	Statement
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "rpcgen"
 
diff --git a/runtime/syntax/rpl.vim b/runtime/syntax/rpl.vim
--- a/runtime/syntax/rpl.vim
+++ b/runtime/syntax/rpl.vim
@@ -6,11 +6,8 @@
 " URL:		http://www.makalis.fr/~bertrand/rpl2/download/vim/indent/rpl.vim
 " Credits:	Nothing
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -417,77 +414,69 @@ syntax region rplString start=+\(^\|\s\+
 syntax match rplTab "\t"  transparent
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_rpl_syntax_inits")
-  if version < 508
-    let did_rpl_syntax_inits = 1
-    command -nargs=+ HiLink highlight link <args>
-  else
-    command -nargs=+ HiLink highlight default link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink highlight default link <args>
 
-  " The default highlighting.
+" The default highlighting.
 
-  HiLink rplControl		Statement
-  HiLink rplStatement		Statement
-  HiLink rplAlgConditional	Conditional
-  HiLink rplConditional		Repeat
-  HiLink rplConditionalError	Error
-  HiLink rplRepeat		Repeat
-  HiLink rplCycle		Repeat
-  HiLink rplUntil		Repeat
-  HiLink rplIntrinsic		Special
-  HiLink rplStorage		StorageClass
-  HiLink rplStorageExpr		StorageClass
-  HiLink rplStorageError	Error
-  HiLink rplReadWrite		rplIntrinsic
+HiLink rplControl		Statement
+HiLink rplStatement		Statement
+HiLink rplAlgConditional	Conditional
+HiLink rplConditional		Repeat
+HiLink rplConditionalError	Error
+HiLink rplRepeat		Repeat
+HiLink rplCycle		Repeat
+HiLink rplUntil		Repeat
+HiLink rplIntrinsic		Special
+HiLink rplStorage		StorageClass
+HiLink rplStorageExpr		StorageClass
+HiLink rplStorageError	Error
+HiLink rplReadWrite		rplIntrinsic
 
-  HiLink rplOperator		Operator
+HiLink rplOperator		Operator
 
-  HiLink rplList		Special
-  HiLink rplArray		Special
-  HiLink rplConstant		Identifier
-  HiLink rplExpr		Type
+HiLink rplList		Special
+HiLink rplArray		Special
+HiLink rplConstant		Identifier
+HiLink rplExpr		Type
+
+HiLink rplString		String
+HiLink rplStringGuilles	String
+HiLink rplStringAntislash	String
 
-  HiLink rplString		String
-  HiLink rplStringGuilles	String
-  HiLink rplStringAntislash	String
+HiLink rplBinary		Boolean
+HiLink rplOctal		Boolean
+HiLink rplDecimal		Boolean
+HiLink rplHexadecimal		Boolean
+HiLink rplInteger		Number
+HiLink rplFloat		Float
+HiLink rplComplex		Float
+HiLink rplBoolean		Identifier
 
-  HiLink rplBinary		Boolean
-  HiLink rplOctal		Boolean
-  HiLink rplDecimal		Boolean
-  HiLink rplHexadecimal		Boolean
-  HiLink rplInteger		Number
-  HiLink rplFloat		Float
-  HiLink rplComplex		Float
-  HiLink rplBoolean		Identifier
-
-  HiLink rplObsolete		Todo
+HiLink rplObsolete		Todo
 
-  HiLink rplPreCondit		PreCondit
-  HiLink rplInclude		Include
-  HiLink rplIncluded		rplString
-  HiLink rplInclude		Include
-  HiLink rplExecPath		Include
-  HiLink rplPreProc		PreProc
-  HiLink rplComment		Comment
-  HiLink rplCommentLine		Comment
-  HiLink rplCommentString	Comment
-  HiLink rplSubDelimitor	rplStorage
-  HiLink rplCommentError	Error
-  HiLink rplParenError		Error
-  HiLink rplSubError		Error
-  HiLink rplArrayError		Error
-  HiLink rplListError		Error
-  HiLink rplTab			Error
-  HiLink rplBinaryError		Error
-  HiLink rplOctalError		Error
-  HiLink rplDecimalError	Error
-  HiLink rplHexadecimalError	Error
+HiLink rplPreCondit		PreCondit
+HiLink rplInclude		Include
+HiLink rplIncluded		rplString
+HiLink rplInclude		Include
+HiLink rplExecPath		Include
+HiLink rplPreProc		PreProc
+HiLink rplComment		Comment
+HiLink rplCommentLine		Comment
+HiLink rplCommentString	Comment
+HiLink rplSubDelimitor	rplStorage
+HiLink rplCommentError	Error
+HiLink rplParenError		Error
+HiLink rplSubError		Error
+HiLink rplArrayError		Error
+HiLink rplListError		Error
+HiLink rplTab			Error
+HiLink rplBinaryError		Error
+HiLink rplOctalError		Error
+HiLink rplDecimalError	Error
+HiLink rplHexadecimalError	Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "rpl"
 
diff --git a/runtime/syntax/rtf.vim b/runtime/syntax/rtf.vim
--- a/runtime/syntax/rtf.vim
+++ b/runtime/syntax/rtf.vim
@@ -13,11 +13,8 @@
 
 " TODO: render underline, italic, bold
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -52,35 +49,27 @@ syn match rtfBlue		"\\blue[0-9][0-9]*"
 syn match rtfFootNote "[#$K+]{\\footnote.*}" contains=rtfControlWord,rtfNewControlWord
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_rtf_syntax_inits")
-  if version < 508
-    let did_rtf_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
 
-   HiLink rtfControlWord		Statement
-   HiLink rtfNewControlWord	Special
-   HiLink rtfControlSymbol	Constant
-   HiLink rtfCharacter		Character
-   HiLink rtfUnicodeCharacter	SpecialChar
-   HiLink rtfFootNote		Comment
+HiLink rtfControlWord		Statement
+HiLink rtfNewControlWord	Special
+HiLink rtfControlSymbol	Constant
+HiLink rtfCharacter		Character
+HiLink rtfUnicodeCharacter	SpecialChar
+HiLink rtfFootNote		Comment
 
-   " Define colors for the syntax file
-   hi rtfRed	      term=underline cterm=underline ctermfg=DarkRed gui=underline guifg=DarkRed
-   hi rtfGreen	      term=underline cterm=underline ctermfg=DarkGreen gui=underline guifg=DarkGreen
-   hi rtfBlue	      term=underline cterm=underline ctermfg=DarkBlue gui=underline guifg=DarkBlue
+" Define colors for the syntax file
+hi rtfRed	      term=underline cterm=underline ctermfg=DarkRed gui=underline guifg=DarkRed
+hi rtfGreen	      term=underline cterm=underline ctermfg=DarkGreen gui=underline guifg=DarkGreen
+hi rtfBlue	      term=underline cterm=underline ctermfg=DarkBlue gui=underline guifg=DarkBlue
 
-   HiLink rtfRed	rtfRed
-   HiLink rtfGreen	rtfGreen
-   HiLink rtfBlue	rtfBlue
+HiLink rtfRed	rtfRed
+HiLink rtfGreen	rtfGreen
+HiLink rtfBlue	rtfBlue
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "rtf"
diff --git a/runtime/syntax/ruby.vim b/runtime/syntax/ruby.vim
--- a/runtime/syntax/ruby.vim
+++ b/runtime/syntax/ruby.vim
@@ -9,16 +9,45 @@
 " Thanks to perl.vim authors, and to Reimer Behrends. :-) (MN)
 " ----------------------------------------------------------------------------
 
+" Prelude {{{1
 if exists("b:current_syntax")
   finish
 endif
 
+" this file uses line continuations
+let s:cpo_sav = &cpo
+set cpo&vim
+
+" Folding Config {{{1
 if has("folding") && exists("ruby_fold")
   setlocal foldmethod=syntax
 endif
 
+let s:foldable_groups = split(
+      \	  get(
+      \	    b:,
+      \	    'ruby_foldable_groups',
+      \	    get(g:, 'ruby_foldable_groups', 'ALL')
+      \	  )
+      \	)
+
+function! s:foldable(...) abort
+  if index(s:foldable_groups, 'ALL') > -1
+    return 1
+  endif
+
+  for l:i in a:000
+    if index(s:foldable_groups, l:i) > -1
+      return 1
+    endif
+  endfor
+
+  return 0
+endfunction " }}}
+
 syn cluster rubyNotTop contains=@rubyExtendedStringSpecial,@rubyRegexpSpecial,@rubyDeclaration,rubyConditional,rubyExceptional,rubyMethodExceptional,rubyTodo
 
+" Whitespace Errors {{{1
 if exists("ruby_space_errors")
   if !exists("ruby_no_trail_space_error")
     syn match rubySpaceError display excludenl "\s\+$"
@@ -28,14 +57,14 @@ if exists("ruby_space_errors")
   endif
 endif
 
-" Operators
+" Operators {{{1
 if exists("ruby_operators")
-  syn match  rubyOperator "[~!^&|*/%+-]\|\%(class\s*\)\@<!<<\|<=>\|<=\|\%(<\|\<class\s\+\u\w*\s*\)\@<!<[^<]\@=\|===\|==\|=\~\|>>\|>=\|=\@<!>\|\*\*\|\.\.\.\|\.\.\|::"
+  syn match  rubyOperator "[~!^|*/%+-]\|&\.\@!\|\%(class\s*\)\@<!<<\|<=>\|<=\|\%(<\|\<class\s\+\u\w*\s*\)\@<!<[^<]\@=\|===\|==\|=\~\|>>\|>=\|=\@1<!>\|\*\*\|\.\.\.\|\.\.\|::"
   syn match  rubyOperator "->\|-=\|/=\|\*\*=\|\*=\|&&=\|&=\|&&\|||=\||=\|||\|%=\|+=\|!\~\|!="
-  syn region rubyBracketOperator matchgroup=rubyOperator start="\%(\w[?!]\=\|[]})]\)\@<=\[\s*" end="\s*]" contains=ALLBUT,@rubyNotTop
+  syn region rubyBracketOperator matchgroup=rubyOperator start="\%(\w[?!]\=\|[]})]\)\@2<=\[\s*" end="\s*]" contains=ALLBUT,@rubyNotTop
 endif
 
-" Expression Substitution and Backslash Notation
+" Expression Substitution and Backslash Notation {{{1
 syn match rubyStringEscape "\\\\\|\\[abefnrstv]\|\\\o\{1,3}\|\\x\x\{1,2}"						    contained display
 syn match rubyStringEscape "\%(\\M-\\C-\|\\C-\\M-\|\\M-\\c\|\\c\\M-\|\\c\|\\C-\|\\M-\)\%(\\\o\{1,3}\|\\x\x\{1,2}\|\\\=\S\)" contained display
 syn match rubyQuoteEscape  "\\[\\']"											    contained display
@@ -45,18 +74,19 @@ syn match  rubyInterpolation	      "#\%(
 syn match  rubyInterpolationDelimiter "#\ze\%(\$\|@@\=\)\w\+" display contained
 syn match  rubyInterpolation	      "#\$\%(-\w\|\W\)"       display contained contains=rubyInterpolationDelimiter,rubyPredefinedVariable,rubyInvalidVariable
 syn match  rubyInterpolationDelimiter "#\ze\$\%(-\w\|\W\)"    display contained
-syn region rubyNoInterpolation	      start="\\#{" end="}"            contained
+syn region rubyNoInterpolation	      start="\\#{" end="}"	      contained
 syn match  rubyNoInterpolation	      "\\#{"		      display contained
 syn match  rubyNoInterpolation	      "\\#\%(\$\|@@\=\)\w\+"  display contained
 syn match  rubyNoInterpolation	      "\\#\$\W"		      display contained
 
-syn match rubyDelimEscape	"\\[(<{\[)>}\]]" transparent display contained contains=NONE
+syn match rubyDelimiterEscape	"\\[(<{\[)>}\]]" transparent display contained contains=NONE
 
 syn region rubyNestedParentheses    start="("  skip="\\\\\|\\)"  matchgroup=rubyString end=")"	transparent contained
 syn region rubyNestedCurlyBraces    start="{"  skip="\\\\\|\\}"  matchgroup=rubyString end="}"	transparent contained
 syn region rubyNestedAngleBrackets  start="<"  skip="\\\\\|\\>"  matchgroup=rubyString end=">"	transparent contained
 syn region rubyNestedSquareBrackets start="\[" skip="\\\\\|\\\]" matchgroup=rubyString end="\]"	transparent contained
 
+" Regular Expression Metacharacters {{{1
 " These are mostly Oniguruma ready
 syn region rubyRegexpComment	matchgroup=rubyRegexpSpecial   start="(?#"								  skip="\\)"  end=")"  contained
 syn region rubyRegexpParens	matchgroup=rubyRegexpSpecial   start="(\(?:\|?<\=[=!]\|?>\|?<[a-z_]\w*>\|?[imx]*-[imx]*:\=\|\%(?#\)\@!\)" skip="\\)"  end=")"  contained transparent contains=@rubyRegexpSpecial
@@ -79,36 +109,40 @@ syn cluster rubyStringSpecial	      cont
 syn cluster rubyExtendedStringSpecial contains=@rubyStringSpecial,rubyNestedParentheses,rubyNestedCurlyBraces,rubyNestedAngleBrackets,rubyNestedSquareBrackets
 syn cluster rubyRegexpSpecial	      contains=rubyInterpolation,rubyNoInterpolation,rubyStringEscape,rubyRegexpSpecial,rubyRegexpEscape,rubyRegexpBrackets,rubyRegexpCharClass,rubyRegexpDot,rubyRegexpQuantifier,rubyRegexpAnchor,rubyRegexpParens,rubyRegexpComment
 
-" Numbers and ASCII Codes
-syn match rubyASCIICode	"\%(\w\|[]})\"'/]\)\@<!\%(?\%(\\M-\\C-\|\\C-\\M-\|\\M-\\c\|\\c\\M-\|\\c\|\\C-\|\\M-\)\=\%(\\\o\{1,3}\|\\x\x\{1,2}\|\\\=\S\)\)"
-syn match rubyInteger	"\%(\%(\w\|[]})\"']\s*\)\@<!-\)\=\<0[xX]\x\+\%(_\x\+\)*\>"								display
-syn match rubyInteger	"\%(\%(\w\|[]})\"']\s*\)\@<!-\)\=\<\%(0[dD]\)\=\%(0\|[1-9]\d*\%(_\d\+\)*\)\>"						display
-syn match rubyInteger	"\%(\%(\w\|[]})\"']\s*\)\@<!-\)\=\<0[oO]\=\o\+\%(_\o\+\)*\>"								display
-syn match rubyInteger	"\%(\%(\w\|[]})\"']\s*\)\@<!-\)\=\<0[bB][01]\+\%(_[01]\+\)*\>"								display
-syn match rubyFloat	"\%(\%(\w\|[]})\"']\s*\)\@<!-\)\=\<\%(0\|[1-9]\d*\%(_\d\+\)*\)\.\d\+\%(_\d\+\)*\>"					display
-syn match rubyFloat	"\%(\%(\w\|[]})\"']\s*\)\@<!-\)\=\<\%(0\|[1-9]\d*\%(_\d\+\)*\)\%(\.\d\+\%(_\d\+\)*\)\=\%([eE][-+]\=\d\+\%(_\d\+\)*\)\>"	display
+" Numbers and ASCII Codes {{{1
+syn match rubyASCIICode "\%(\w\|[]})\"'/]\)\@1<!\%(?\%(\\M-\\C-\|\\C-\\M-\|\\M-\\c\|\\c\\M-\|\\c\|\\C-\|\\M-\)\=\%(\\\o\{1,3}\|\\x\x\{1,2}\|\\\=\S\)\)"
+syn match rubyInteger	"\%(\%(\w\|[]})\"']\s*\)\@<!-\)\=\<0[xX]\x\+\%(_\x\+\)*r\=i\=\>"								display
+syn match rubyInteger	"\%(\%(\w\|[]})\"']\s*\)\@<!-\)\=\<\%(0[dD]\)\=\%(0\|[1-9]\d*\%(_\d\+\)*\)r\=i\=\>"						display
+syn match rubyInteger	"\%(\%(\w\|[]})\"']\s*\)\@<!-\)\=\<0[oO]\=\o\+\%(_\o\+\)*r\=i\=\>"								display
+syn match rubyInteger	"\%(\%(\w\|[]})\"']\s*\)\@<!-\)\=\<0[bB][01]\+\%(_[01]\+\)*r\=i\=\>"								display
+syn match rubyFloat	"\%(\%(\w\|[]})\"']\s*\)\@<!-\)\=\<\%(0\|[1-9]\d*\%(_\d\+\)*\)\.\d\+\%(_\d\+\)*r\=i\=\>"					display
+syn match rubyFloat	"\%(\%(\w\|[]})\"']\s*\)\@<!-\)\=\<\%(0\|[1-9]\d*\%(_\d\+\)*\)\%(\.\d\+\%(_\d\+\)*\)\=\%([eE][-+]\=\d\+\%(_\d\+\)*\)r\=i\=\>"	display
 
-" Identifiers
+" Identifiers {{{1
 syn match rubyLocalVariableOrMethod "\<[_[:lower:]][_[:alnum:]]*[?!=]\=" contains=NONE display transparent
 syn match rubyBlockArgument	    "&[_[:lower:]][_[:alnum:]]"		 contains=NONE display transparent
 
-syn match  rubyConstant		"\%(\%([.@$]\@<!\.\)\@<!\<\|::\)\_s*\zs\u\w*\%(\>\|::\)\@=\%(\s*(\)\@!"
+syn match  rubyConstant		"\%(\%(^\|[^.]\)\.\s*\)\@<!\<\u\%(\w\|[^\x00-\x7F]\)*\>\%(\s*(\)\@!"
 syn match  rubyClassVariable	"@@\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*" display
-syn match  rubyInstanceVariable "@\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*"  display
+syn match  rubyInstanceVariable "@\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*"	display
 syn match  rubyGlobalVariable	"$\%(\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\|-.\)"
-syn match  rubySymbol		"[]})\"':]\@<!:\%(\^\|\~\|<<\|<=>\|<=\|<\|===\|[=!]=\|[=!]\~\|!\|>>\|>=\|>\||\|-@\|-\|/\|\[]=\|\[]\|\*\*\|\*\|&\|%\|+@\|+\|`\)"
-syn match  rubySymbol		"[]})\"':]\@<!:\$\%(-.\|[`~<=>_,;:!?/.'"@$*\&+0]\)"
-syn match  rubySymbol		"[]})\"':]\@<!:\%(\$\|@@\=\)\=\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*"
-syn match  rubySymbol		"[]})\"':]\@<!:\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\%([?!=]>\@!\)\="
-syn match  rubySymbol		"\%([{(,]\_s*\)\@<=\l\w*[!?]\=::\@!"he=e-1
-syn match  rubySymbol		"[]})\"':]\@<!\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*[!?]\=:\s\@="he=e-1
-syn match  rubySymbol		"\%([{(,]\_s*\)\@<=[[:space:],{]\l\w*[!?]\=::\@!"hs=s+1,he=e-1
-syn match  rubySymbol		"[[:space:],{]\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*[!?]\=:\s\@="hs=s+1,he=e-1
-syn region rubySymbol		start="[]})\"':]\@<!:'"  end="'"  skip="\\\\\|\\'"  contains=rubyQuoteEscape fold
-syn region rubySymbol		start="[]})\"':]\@<!:\"" end="\"" skip="\\\\\|\\\"" contains=@rubyStringSpecial fold
+syn match  rubySymbol		"[]})\"':]\@1<!:\%(\^\|\~@\|\~\|<<\|<=>\|<=\|<\|===\|[=!]=\|[=!]\~\|!@\|!\|>>\|>=\|>\||\|-@\|-\|/\|\[]=\|\[]\|\*\*\|\*\|&\|%\|+@\|+\|`\)"
+syn match  rubySymbol		"[]})\"':]\@1<!:\$\%(-.\|[`~<=>_,;:!?/.'"@$*\&+0]\)"
+syn match  rubySymbol		"[]})\"':]\@1<!:\%(\$\|@@\=\)\=\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*"
+syn match  rubySymbol		"[]})\"':]\@1<!:\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\%([?!=]>\@!\)\="
+
+if s:foldable(':')
+  syn region rubySymbol		start="[]})\"':]\@1<!:'"  end="'"  skip="\\\\\|\\'"  contains=rubyQuoteEscape fold
+  syn region rubySymbol		start="[]})\"':]\@1<!:\"" end="\"" skip="\\\\\|\\\"" contains=@rubyStringSpecial fold
+else
+  syn region rubySymbol		start="[]})\"':]\@1<!:'"  end="'"  skip="\\\\\|\\'"  contains=rubyQuoteEscape
+  syn region rubySymbol		start="[]})\"':]\@1<!:\"" end="\"" skip="\\\\\|\\\"" contains=@rubyStringSpecial
+endif
+
+syn match  rubyCapitalizedMethod	"\%(\%(^\|[^.]\)\.\s*\)\@<!\<\u\%(\w\|[^\x00-\x7F]\)*\>\%(\s*(\)*\s*(\@="
 
 syn match  rubyBlockParameter	  "\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*" contained
-syn region rubyBlockParameterList start="\%(\%(\<do\>\|{\)\s*\)\@<=|" end="|" oneline display contains=rubyBlockParameter
+syn region rubyBlockParameterList start="\%(\%(\<do\>\|{\)\_s*\)\@32<=|" end="|" oneline display contains=rubyBlockParameter
 
 syn match rubyInvalidVariable	 "$[^ A-Za-z_-]"
 syn match rubyPredefinedVariable #$[!$&"'*+,./0:;<=>?@\`~]#
@@ -117,93 +151,187 @@ syn match rubyPredefinedVariable "$_\>"	
 syn match rubyPredefinedVariable "$-[0FIKadilpvw]\>"									   display
 syn match rubyPredefinedVariable "$\%(deferr\|defout\|stderr\|stdin\|stdout\)\>"					   display
 syn match rubyPredefinedVariable "$\%(DEBUG\|FILENAME\|KCODE\|LOADED_FEATURES\|LOAD_PATH\|PROGRAM_NAME\|SAFE\|VERBOSE\)\>" display
-syn match rubyPredefinedConstant "\%(\%(\.\@<!\.\)\@<!\|::\)\_s*\zs\%(MatchingData\|ARGF\|ARGV\|ENV\)\>\%(\s*(\)\@!"
-syn match rubyPredefinedConstant "\%(\%(\.\@<!\.\)\@<!\|::\)\_s*\zs\%(DATA\|FALSE\|NIL\)\>\%(\s*(\)\@!"
-syn match rubyPredefinedConstant "\%(\%(\.\@<!\.\)\@<!\|::\)\_s*\zs\%(STDERR\|STDIN\|STDOUT\|TOPLEVEL_BINDING\|TRUE\)\>\%(\s*(\)\@!"
-syn match rubyPredefinedConstant "\%(\%(\.\@<!\.\)\@<!\|::\)\_s*\zs\%(RUBY_\%(VERSION\|RELEASE_DATE\|PLATFORM\|PATCHLEVEL\|REVISION\|DESCRIPTION\|COPYRIGHT\|ENGINE\)\)\>\%(\s*(\)\@!"
+syn match rubyPredefinedConstant "\%(\%(^\|[^.]\)\.\s*\)\@<!\<\%(ARGF\|ARGV\|ENV\|DATA\|FALSE\|NIL\|STDERR\|STDIN\|STDOUT\|TOPLEVEL_BINDING\|TRUE\)\>\%(\s*(\)\@!"
+syn match rubyPredefinedConstant "\%(\%(^\|[^.]\)\.\s*\)\@<!\<\%(RUBY_\%(VERSION\|RELEASE_DATE\|PLATFORM\|PATCHLEVEL\|REVISION\|DESCRIPTION\|COPYRIGHT\|ENGINE\)\)\>\%(\s*(\)\@!"
+
+" Normal Regular Expression {{{1
+if s:foldable('/')
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="\%(\%(^\|\<\%(and\|or\|while\|until\|unless\|if\|elsif\|when\|not\|then\|else\)\|[;\~=!|&(,{[<>?:*+-]\)\s*\)\@<=/" end="/[iomxneus]*" skip="\\\\\|\\/" contains=@rubyRegexpSpecial fold
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="\%(\h\k*\s\+\)\@<=/[ \t=]\@!" end="/[iomxneus]*" skip="\\\\\|\\/" contains=@rubyRegexpSpecial fold
+else
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="\%(\%(^\|\<\%(and\|or\|while\|until\|unless\|if\|elsif\|when\|not\|then\|else\)\|[;\~=!|&(,{[<>?:*+-]\)\s*\)\@<=/" end="/[iomxneus]*" skip="\\\\\|\\/" contains=@rubyRegexpSpecial
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="\%(\h\k*\s\+\)\@<=/[ \t=]\@!" end="/[iomxneus]*" skip="\\\\\|\\/" contains=@rubyRegexpSpecial
+endif
 
-" Normal Regular Expression
-syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="\%(\%(^\|\<\%(and\|or\|while\|until\|unless\|if\|elsif\|when\|not\|then\|else\)\|[;\~=!|&(,[<>?:*+-]\)\s*\)\@<=/" end="/[iomxneus]*" skip="\\\\\|\\/" contains=@rubyRegexpSpecial fold
-syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="\%(\h\k*\s\+\)\@<=/[ \t=]\@!" end="/[iomxneus]*" skip="\\\\\|\\/" contains=@rubyRegexpSpecial fold
+" Generalized Regular Expression {{{1
+if s:foldable('%')
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1[iomxneus]*" skip="\\\\\|\\\z1" contains=@rubyRegexpSpecial fold
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r{"				end="}[iomxneus]*"   skip="\\\\\|\\}"	 contains=@rubyRegexpSpecial fold
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r<"				end=">[iomxneus]*"   skip="\\\\\|\\>"	 contains=@rubyRegexpSpecial,rubyNestedAngleBrackets,rubyDelimiterEscape fold
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r\["				end="\][iomxneus]*"  skip="\\\\\|\\\]"	 contains=@rubyRegexpSpecial fold
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r("				end=")[iomxneus]*"   skip="\\\\\|\\)"	 contains=@rubyRegexpSpecial fold
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r\z(\s\)"				end="\z1[iomxneus]*" skip="\\\\\|\\\z1" contains=@rubyRegexpSpecial fold
+else
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1[iomxneus]*" skip="\\\\\|\\\z1" contains=@rubyRegexpSpecial
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r{"				end="}[iomxneus]*"   skip="\\\\\|\\}"	 contains=@rubyRegexpSpecial
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r<"				end=">[iomxneus]*"   skip="\\\\\|\\>"	 contains=@rubyRegexpSpecial,rubyNestedAngleBrackets,rubyDelimiterEscape
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r\["				end="\][iomxneus]*"  skip="\\\\\|\\\]"	 contains=@rubyRegexpSpecial
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r("				end=")[iomxneus]*"   skip="\\\\\|\\)"	 contains=@rubyRegexpSpecial
+  syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r\z(\s\)"				end="\z1[iomxneus]*" skip="\\\\\|\\\z1" contains=@rubyRegexpSpecial
+endif
+
+" Normal String {{{1
+let s:spell_cluster = exists('ruby_spellcheck_strings') ? ',@Spell' : ''
+exe 'syn region rubyString matchgroup=rubyStringDelimiter start="\"" end="\"" skip="\\\\\|\\\"" ' .
+      \ (s:foldable('%') ? 'fold' : '') . ' contains=@rubyStringSpecial' . s:spell_cluster
+exe 'syn region rubyString matchgroup=rubyStringDelimiter start="''" end="''" skip="\\\\\|\\''" ' .
+      \ (s:foldable('%') ? 'fold' : '') . ' contains=rubyQuoteEscape'	 . s:spell_cluster
 
-" Generalized Regular Expression
-syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r\z([~`!@#$%^&*_\-+=|\:;"',.? /]\)" end="\z1[iomxneus]*" skip="\\\\\|\\\z1" contains=@rubyRegexpSpecial fold
-syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r{"				 end="}[iomxneus]*"   skip="\\\\\|\\}"	 contains=@rubyRegexpSpecial fold
-syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r<"				 end=">[iomxneus]*"   skip="\\\\\|\\>"	 contains=@rubyRegexpSpecial,rubyNestedAngleBrackets,rubyDelimEscape fold
-syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r\["				 end="\][iomxneus]*"  skip="\\\\\|\\\]"	 contains=@rubyRegexpSpecial fold
-syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r("				 end=")[iomxneus]*"   skip="\\\\\|\\)"	 contains=@rubyRegexpSpecial fold
+" Shell Command Output {{{1
+if s:foldable('%')
+  syn region rubyString matchgroup=rubyStringDelimiter start="`" end="`" skip="\\\\\|\\`" contains=@rubyStringSpecial fold
+else
+  syn region rubyString matchgroup=rubyStringDelimiter start="`" end="`" skip="\\\\\|\\`" contains=@rubyStringSpecial
+endif
 
-" Normal String and Shell Command Output
-syn region rubyString matchgroup=rubyStringDelimiter start="\"" end="\"" skip="\\\\\|\\\"" contains=@rubyStringSpecial,@Spell fold
-syn region rubyString matchgroup=rubyStringDelimiter start="'"	end="'"  skip="\\\\\|\\'"  contains=rubyQuoteEscape,@Spell    fold
-syn region rubyString matchgroup=rubyStringDelimiter start="`"	end="`"  skip="\\\\\|\\`"  contains=@rubyStringSpecial fold
+" Generalized Single Quoted String, Symbol and Array of Strings {{{1
+if s:foldable('%')
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[qw]\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1" fold
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[qw]{"				     end="}"   skip="\\\\\|\\}"	  fold contains=rubyNestedCurlyBraces,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[qw]<"				     end=">"   skip="\\\\\|\\>"	  fold contains=rubyNestedAngleBrackets,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[qw]\["				     end="\]"  skip="\\\\\|\\\]"  fold contains=rubyNestedSquareBrackets,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[qw]("				     end=")"   skip="\\\\\|\\)"	  fold contains=rubyNestedParentheses,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%q\z(\s\)"			     end="\z1" skip="\\\\\|\\\z1" fold
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)"    end="\z1" skip="\\\\\|\\\z1" fold
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s{"				     end="}"   skip="\\\\\|\\}"	  fold contains=rubyNestedCurlyBraces,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s<"				     end=">"   skip="\\\\\|\\>"	  fold contains=rubyNestedAngleBrackets,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s\["				     end="\]"  skip="\\\\\|\\\]"  fold contains=rubyNestedSquareBrackets,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s("				     end=")"   skip="\\\\\|\\)"	  fold contains=rubyNestedParentheses,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%s\z(\s\)"			     end="\z1" skip="\\\\\|\\\z1" fold
+else
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[qw]\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1"
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[qw]{"				     end="}"   skip="\\\\\|\\}"	  contains=rubyNestedCurlyBraces,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[qw]<"				     end=">"   skip="\\\\\|\\>"	  contains=rubyNestedAngleBrackets,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[qw]\["				     end="\]"  skip="\\\\\|\\\]"  contains=rubyNestedSquareBrackets,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[qw]("				     end=")"   skip="\\\\\|\\)"	  contains=rubyNestedParentheses,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%q\z(\s\)"			     end="\z1" skip="\\\\\|\\\z1"
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)"    end="\z1" skip="\\\\\|\\\z1"
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s{"				     end="}"   skip="\\\\\|\\}"	  contains=rubyNestedCurlyBraces,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s<"				     end=">"   skip="\\\\\|\\>"	  contains=rubyNestedAngleBrackets,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s\["				     end="\]"  skip="\\\\\|\\\]"  contains=rubyNestedSquareBrackets,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s("				     end=")"   skip="\\\\\|\\)"	  contains=rubyNestedParentheses,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%s\z(\s\)"			     end="\z1" skip="\\\\\|\\\z1"
+endif
 
-" Generalized Single Quoted String, Symbol and Array of Strings
-syn region rubyString matchgroup=rubyStringDelimiter start="%[qwi]\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1" fold
-syn region rubyString matchgroup=rubyStringDelimiter start="%[qwi]{"				   end="}"   skip="\\\\\|\\}"	fold contains=rubyNestedCurlyBraces,rubyDelimEscape
-syn region rubyString matchgroup=rubyStringDelimiter start="%[qwi]<"				   end=">"   skip="\\\\\|\\>"	fold contains=rubyNestedAngleBrackets,rubyDelimEscape
-syn region rubyString matchgroup=rubyStringDelimiter start="%[qwi]\["				   end="\]"  skip="\\\\\|\\\]"	fold contains=rubyNestedSquareBrackets,rubyDelimEscape
-syn region rubyString matchgroup=rubyStringDelimiter start="%[qwi]("				   end=")"   skip="\\\\\|\\)"	fold contains=rubyNestedParentheses,rubyDelimEscape
-syn region rubyString matchgroup=rubyStringDelimiter start="%q "				   end=" "   skip="\\\\\|\\)"	fold
-syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s\z([~`!@#$%^&*_\-+=|\:;"',.? /]\)"   end="\z1" skip="\\\\\|\\\z1" fold
-syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s{"				   end="}"   skip="\\\\\|\\}"	fold contains=rubyNestedCurlyBraces,rubyDelimEscape
-syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s<"				   end=">"   skip="\\\\\|\\>"	fold contains=rubyNestedAngleBrackets,rubyDelimEscape
-syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s\["				   end="\]"  skip="\\\\\|\\\]"	fold contains=rubyNestedSquareBrackets,rubyDelimEscape
-syn region rubySymbol matchgroup=rubySymbolDelimiter start="%s("				   end=")"   skip="\\\\\|\\)"	fold contains=rubyNestedParentheses,rubyDelimEscape
-
-" Generalized Double Quoted String and Array of Strings and Shell Command Output
+" Generalized Double Quoted String and Array of Strings and Shell Command Output {{{1
 " Note: %= is not matched here as the beginning of a double quoted string
-syn region rubyString matchgroup=rubyStringDelimiter start="%\z([~`!@#$%^&*_\-+|\:;"',.?/]\)"	    end="\z1" skip="\\\\\|\\\z1" contains=@rubyStringSpecial fold
-syn region rubyString matchgroup=rubyStringDelimiter start="%[QWIx]\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1" contains=@rubyStringSpecial fold
-syn region rubyString matchgroup=rubyStringDelimiter start="%[QWIx]\={"				    end="}"   skip="\\\\\|\\}"	 contains=@rubyStringSpecial,rubyNestedCurlyBraces,rubyDelimEscape    fold
-syn region rubyString matchgroup=rubyStringDelimiter start="%[QWIx]\=<"				    end=">"   skip="\\\\\|\\>"	 contains=@rubyStringSpecial,rubyNestedAngleBrackets,rubyDelimEscape  fold
-syn region rubyString matchgroup=rubyStringDelimiter start="%[QWIx]\=\["				    end="\]"  skip="\\\\\|\\\]"	 contains=@rubyStringSpecial,rubyNestedSquareBrackets,rubyDelimEscape fold
-syn region rubyString matchgroup=rubyStringDelimiter start="%[QWIx]\=("				    end=")"   skip="\\\\\|\\)"	 contains=@rubyStringSpecial,rubyNestedParentheses,rubyDelimEscape    fold
-syn region rubyString matchgroup=rubyStringDelimiter start="%[Qx] "				    end=" "   skip="\\\\\|\\)"   contains=@rubyStringSpecial fold
+if s:foldable('%')
+  syn region rubyString matchgroup=rubyStringDelimiter start="%\z([~`!@#$%^&*_\-+|\:;"',.?/]\)"	      end="\z1" skip="\\\\\|\\\z1" contains=@rubyStringSpecial fold
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1" contains=@rubyStringSpecial fold
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\={"			      end="}"	skip="\\\\\|\\}"   contains=@rubyStringSpecial,rubyNestedCurlyBraces,rubyDelimiterEscape    fold
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\=<"			      end=">"	skip="\\\\\|\\>"   contains=@rubyStringSpecial,rubyNestedAngleBrackets,rubyDelimiterEscape  fold
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\=\["			      end="\]"	skip="\\\\\|\\\]"  contains=@rubyStringSpecial,rubyNestedSquareBrackets,rubyDelimiterEscape fold
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\=("			      end=")"	skip="\\\\\|\\)"   contains=@rubyStringSpecial,rubyNestedParentheses,rubyDelimiterEscape    fold
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[Qx]\z(\s\)"			      end="\z1" skip="\\\\\|\\\z1" contains=@rubyStringSpecial fold
+else
+  syn region rubyString matchgroup=rubyStringDelimiter start="%\z([~`!@#$%^&*_\-+|\:;"',.?/]\)"	      end="\z1" skip="\\\\\|\\\z1" contains=@rubyStringSpecial
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1" contains=@rubyStringSpecial
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\={"			      end="}"	skip="\\\\\|\\}"   contains=@rubyStringSpecial,rubyNestedCurlyBraces,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\=<"			      end=">"	skip="\\\\\|\\>"   contains=@rubyStringSpecial,rubyNestedAngleBrackets,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\=\["			      end="\]"	skip="\\\\\|\\\]"  contains=@rubyStringSpecial,rubyNestedSquareBrackets,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\=("			      end=")"	skip="\\\\\|\\)"   contains=@rubyStringSpecial,rubyNestedParentheses,rubyDelimiterEscape
+  syn region rubyString matchgroup=rubyStringDelimiter start="%[Qx]\z(\s\)"			      end="\z1" skip="\\\\\|\\\z1" contains=@rubyStringSpecial
+endif
+
+" Array of Symbols {{{1
+if s:foldable('%')
+  " Array of Symbols
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%i\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1"	fold
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%i{"				  end="}"   skip="\\\\\|\\}"	fold contains=rubyNestedCurlyBraces,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%i<"				  end=">"   skip="\\\\\|\\>"	fold contains=rubyNestedAngleBrackets,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%i\["				  end="\]"  skip="\\\\\|\\\]"	fold contains=rubyNestedSquareBrackets,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%i("				  end=")"   skip="\\\\\|\\)"	fold contains=rubyNestedParentheses,rubyDelimiterEscape
 
-" Here Document
-syn region rubyHeredocStart matchgroup=rubyStringDelimiter start=+\%(\%(class\s*\|\%([]})"'.]\|::\)\)\_s*\|\w\)\@<!<<-\=\zs\%(\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\)+	 end=+$+ oneline contains=ALLBUT,@rubyNotTop
-syn region rubyHeredocStart matchgroup=rubyStringDelimiter start=+\%(\%(class\s*\|\%([]})"'.]\|::\)\)\_s*\|\w\)\@<!<<-\=\zs"\%([^"]*\)"+ end=+$+ oneline contains=ALLBUT,@rubyNotTop
-syn region rubyHeredocStart matchgroup=rubyStringDelimiter start=+\%(\%(class\s*\|\%([]})"'.]\|::\)\)\_s*\|\w\)\@<!<<-\=\zs'\%([^']*\)'+ end=+$+ oneline contains=ALLBUT,@rubyNotTop
-syn region rubyHeredocStart matchgroup=rubyStringDelimiter start=+\%(\%(class\s*\|\%([]})"'.]\|::\)\)\_s*\|\w\)\@<!<<-\=\zs`\%([^`]*\)`+ end=+$+ oneline contains=ALLBUT,@rubyNotTop
+  " Array of interpolated Symbols
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%I\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1"	contains=@rubyStringSpecial fold
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%I{"				  end="}"   skip="\\\\\|\\}"	contains=@rubyStringSpecial,rubyNestedCurlyBraces,rubyDelimiterEscape    fold
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%I<"				  end=">"   skip="\\\\\|\\>"	contains=@rubyStringSpecial,rubyNestedAngleBrackets,rubyDelimiterEscape  fold
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%I\["				  end="\]"  skip="\\\\\|\\\]"	contains=@rubyStringSpecial,rubyNestedSquareBrackets,rubyDelimiterEscape fold
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%I("				  end=")"   skip="\\\\\|\\)"	contains=@rubyStringSpecial,rubyNestedParentheses,rubyDelimiterEscape    fold
+else
+  " Array of Symbols
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%i\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1"
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%i{"				  end="}"   skip="\\\\\|\\}"	contains=rubyNestedCurlyBraces,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%i<"				  end=">"   skip="\\\\\|\\>"	contains=rubyNestedAngleBrackets,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%i\["				  end="\]"  skip="\\\\\|\\\]"	contains=rubyNestedSquareBrackets,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%i("				  end=")"   skip="\\\\\|\\)"	contains=rubyNestedParentheses,rubyDelimiterEscape
+
+  " Array of interpolated Symbols
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%I\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1"	contains=@rubyStringSpecial
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%I{"				  end="}"   skip="\\\\\|\\}"	contains=@rubyStringSpecial,rubyNestedCurlyBraces,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%I<"				  end=">"   skip="\\\\\|\\>"	contains=@rubyStringSpecial,rubyNestedAngleBrackets,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%I\["				  end="\]"  skip="\\\\\|\\\]"	contains=@rubyStringSpecial,rubyNestedSquareBrackets,rubyDelimiterEscape
+  syn region rubySymbol matchgroup=rubySymbolDelimiter start="%I("				  end=")"   skip="\\\\\|\\)"	contains=@rubyStringSpecial,rubyNestedParentheses,rubyDelimiterEscape
+endif
 
-syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]})"'.]\)\s\|\w\)\@<!<<\z(\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\)\ze\%(.*<<-\=['`"]\=\h\)\@!+hs=s+2	matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,rubyHeredoc,@rubyStringSpecial fold keepend
-syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]})"'.]\)\s\|\w\)\@<!<<"\z([^"]*\)"\ze\%(.*<<-\=['`"]\=\h\)\@!+hs=s+2	matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,rubyHeredoc,@rubyStringSpecial fold keepend
-syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]})"'.]\)\s\|\w\)\@<!<<'\z([^']*\)'\ze\%(.*<<-\=['`"]\=\h\)\@!+hs=s+2	matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,rubyHeredoc			fold keepend
-syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]})"'.]\)\s\|\w\)\@<!<<`\z([^`]*\)`\ze\%(.*<<-\=['`"]\=\h\)\@!+hs=s+2	matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,rubyHeredoc,@rubyStringSpecial fold keepend
+" Here Document {{{1
+syn region rubyHeredocStart matchgroup=rubyStringDelimiter start=+\%(\%(class\s*\|\%([]})"'.]\|::\)\)\_s*\|\w\)\@<!<<[-~]\=\zs\%(\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\)+	 end=+$+ oneline contains=ALLBUT,@rubyNotTop
+syn region rubyHeredocStart matchgroup=rubyStringDelimiter start=+\%(\%(class\s*\|\%([]})"'.]\|::\)\)\_s*\|\w\)\@<!<<[-~]\=\zs"\%([^"]*\)"+ end=+$+ oneline contains=ALLBUT,@rubyNotTop
+syn region rubyHeredocStart matchgroup=rubyStringDelimiter start=+\%(\%(class\s*\|\%([]})"'.]\|::\)\)\_s*\|\w\)\@<!<<[-~]\=\zs'\%([^']*\)'+ end=+$+ oneline contains=ALLBUT,@rubyNotTop
+syn region rubyHeredocStart matchgroup=rubyStringDelimiter start=+\%(\%(class\s*\|\%([]})"'.]\|::\)\)\_s*\|\w\)\@<!<<[-~]\=\zs`\%([^`]*\)`+ end=+$+ oneline contains=ALLBUT,@rubyNotTop
+
+if s:foldable('<<')
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]})"'.]\)\s\|\w\)\@<!<<\z(\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\)\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+2	matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,rubyHeredoc,@rubyStringSpecial fold keepend
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]})"'.]\)\s\|\w\)\@<!<<"\z([^"]*\)"\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+2	matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,rubyHeredoc,@rubyStringSpecial fold keepend
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]})"'.]\)\s\|\w\)\@<!<<'\z([^']*\)'\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+2	matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,rubyHeredoc		    fold keepend
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]})"'.]\)\s\|\w\)\@<!<<`\z([^`]*\)`\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+2	matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,rubyHeredoc,@rubyStringSpecial fold keepend
 
-syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]}).]\)\s\|\w\)\@<!<<-\z(\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\)\ze\%(.*<<-\=['`"]\=\h\)\@!+hs=s+3    matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart,@rubyStringSpecial fold keepend
-syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]}).]\)\s\|\w\)\@<!<<-"\z([^"]*\)"\ze\%(.*<<-\=['`"]\=\h\)\@!+hs=s+3  matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart,@rubyStringSpecial fold keepend
-syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]}).]\)\s\|\w\)\@<!<<-'\z([^']*\)'\ze\%(.*<<-\=['`"]\=\h\)\@!+hs=s+3  matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart		     fold keepend
-syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]}).]\)\s\|\w\)\@<!<<-`\z([^`]*\)`\ze\%(.*<<-\=['`"]\=\h\)\@!+hs=s+3  matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart,@rubyStringSpecial fold keepend
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]}).]\)\s\|\w\)\@<!<<[-~]\z(\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\)\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+3    matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart,@rubyStringSpecial fold keepend
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]}).]\)\s\|\w\)\@<!<<[-~]"\z([^"]*\)"\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+3  matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart,@rubyStringSpecial fold keepend
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]}).]\)\s\|\w\)\@<!<<[-~]'\z([^']*\)'\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+3  matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart		    fold keepend
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]}).]\)\s\|\w\)\@<!<<[-~]`\z([^`]*\)`\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+3  matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart,@rubyStringSpecial fold keepend
+else
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]})"'.]\)\s\|\w\)\@<!<<\z(\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\)\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+2	matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,rubyHeredoc,@rubyStringSpecial keepend
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]})"'.]\)\s\|\w\)\@<!<<"\z([^"]*\)"\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+2	matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,rubyHeredoc,@rubyStringSpecial keepend
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]})"'.]\)\s\|\w\)\@<!<<'\z([^']*\)'\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+2	matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,rubyHeredoc		    keepend
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]})"'.]\)\s\|\w\)\@<!<<`\z([^`]*\)`\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+2	matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,rubyHeredoc,@rubyStringSpecial keepend
 
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]}).]\)\s\|\w\)\@<!<<[-~]\z(\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\)\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+3    matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart,@rubyStringSpecial keepend
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]}).]\)\s\|\w\)\@<!<<[-~]"\z([^"]*\)"\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+3  matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart,@rubyStringSpecial keepend
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]}).]\)\s\|\w\)\@<!<<[-~]'\z([^']*\)'\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+3  matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart		    keepend
+  syn region rubyString start=+\%(\%(class\|::\)\_s*\|\%([]}).]\)\s\|\w\)\@<!<<[-~]`\z([^`]*\)`\ze\%(.*<<[-~]\=['`"]\=\h\)\@!+hs=s+3  matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart,@rubyStringSpecial keepend
+endif
+
+" eRuby Config {{{1
 if exists('main_syntax') && main_syntax == 'eruby'
   let b:ruby_no_expensive = 1
 end
 
+" Module, Class, Method and Alias Declarations {{{1
 syn match  rubyAliasDeclaration    "[^[:space:];#.()]\+" contained contains=rubySymbol,rubyGlobalVariable,rubyPredefinedVariable nextgroup=rubyAliasDeclaration2 skipwhite
 syn match  rubyAliasDeclaration2   "[^[:space:];#.()]\+" contained contains=rubySymbol,rubyGlobalVariable,rubyPredefinedVariable
 syn match  rubyMethodDeclaration   "[^[:space:];#(]\+"	 contained contains=rubyConstant,rubyBoolean,rubyPseudoVariable,rubyInstanceVariable,rubyClassVariable,rubyGlobalVariable
 syn match  rubyClassDeclaration    "[^[:space:];#<]\+"	 contained contains=rubyConstant,rubyOperator
 syn match  rubyModuleDeclaration   "[^[:space:];#<]\+"	 contained contains=rubyConstant,rubyOperator
 syn match  rubyFunction "\<[_[:alpha:]][_[:alnum:]]*[?!=]\=[[:alnum:]_.:?!=]\@!" contained containedin=rubyMethodDeclaration
-syn match  rubyFunction "\%(\s\|^\)\@<=[_[:alpha:]][_[:alnum:]]*[?!=]\=\%(\s\|$\)\@=" contained containedin=rubyAliasDeclaration,rubyAliasDeclaration2
-syn match  rubyFunction "\%([[:space:].]\|^\)\@<=\%(\[\]=\=\|\*\*\|[+-]@\=\|[*/%|&^~]\|<<\|>>\|[<>]=\=\|<=>\|===\|[=!]=\|[=!]\~\|!\|`\)\%([[:space:];#(]\|$\)\@=" contained containedin=rubyAliasDeclaration,rubyAliasDeclaration2,rubyMethodDeclaration
+syn match  rubyFunction "\%(\s\|^\)\@1<=[_[:alpha:]][_[:alnum:]]*[?!=]\=\%(\s\|$\)\@=" contained containedin=rubyAliasDeclaration,rubyAliasDeclaration2
+syn match  rubyFunction "\%([[:space:].]\|^\)\@2<=\%(\[\]=\=\|\*\*\|[-+!~]@\=\|[*/%|&^~]\|<<\|>>\|[<>]=\=\|<=>\|===\|[=!]=\|[=!]\~\|!\|`\)\%([[:space:];#(]\|$\)\@=" contained containedin=rubyAliasDeclaration,rubyAliasDeclaration2,rubyMethodDeclaration
 
 syn cluster rubyDeclaration contains=rubyAliasDeclaration,rubyAliasDeclaration2,rubyMethodDeclaration,rubyModuleDeclaration,rubyClassDeclaration,rubyFunction,rubyBlockParameter
 
-" Keywords
+" Keywords {{{1
 " Note: the following keywords have already been defined:
 " begin case class def do end for if module unless until while
 syn match   rubyControl	       "\<\%(and\|break\|in\|next\|not\|or\|redo\|rescue\|retry\|return\)\>[?!]\@!"
 syn match   rubyOperator       "\<defined?" display
 syn match   rubyKeyword	       "\<\%(super\|yield\)\>[?!]\@!"
 syn match   rubyBoolean	       "\<\%(true\|false\)\>[?!]\@!"
-syn match   rubyPseudoVariable "\<\%(nil\|self\|__ENCODING__\|__FILE__\|__LINE__\|__callee__\|__method__\)\>[?!]\@!" " TODO: reorganise
+syn match   rubyPseudoVariable "\<\%(nil\|self\|__ENCODING__\|__dir__\|__FILE__\|__LINE__\|__callee__\|__method__\)\>[?!]\@!" " TODO: reorganise
 syn match   rubyBeginEnd       "\<\%(BEGIN\|END\)\>[?!]\@!"
 
-" Expensive Mode - match 'end' with the appropriate opening keyword for syntax
-" based folding and special highlighting of module/class/method definitions
+" Expensive Mode {{{1
+" Match 'end' with the appropriate opening keyword for syntax based folding
+" and special highlighting of module/class/method definitions
 if !exists("b:ruby_no_expensive") && !exists("ruby_no_expensive")
   syn match  rubyDefine "\<alias\>"  nextgroup=rubyAliasDeclaration  skipwhite skipnl
   syn match  rubyDefine "\<def\>"    nextgroup=rubyMethodDeclaration skipwhite skipnl
@@ -211,23 +339,66 @@ if !exists("b:ruby_no_expensive") && !ex
   syn match  rubyClass	"\<class\>"  nextgroup=rubyClassDeclaration  skipwhite skipnl
   syn match  rubyModule "\<module\>" nextgroup=rubyModuleDeclaration skipwhite skipnl
 
-  syn region rubyMethodBlock start="\<def\>"	matchgroup=rubyDefine end="\%(\<def\_s\+\)\@<!\<end\>" contains=ALLBUT,@rubyNotTop fold
-  syn region rubyBlock	     start="\<class\>"	matchgroup=rubyClass  end="\<end\>"		       contains=ALLBUT,@rubyNotTop fold
-  syn region rubyBlock	     start="\<module\>" matchgroup=rubyModule end="\<end\>"		       contains=ALLBUT,@rubyNotTop fold
+  if s:foldable('def')
+    syn region rubyMethodBlock start="\<def\>"	matchgroup=rubyDefine end="\%(\<def\_s\+\)\@<!\<end\>" contains=ALLBUT,@rubyNotTop fold
+  else
+    syn region rubyMethodBlock start="\<def\>"	matchgroup=rubyDefine end="\%(\<def\_s\+\)\@<!\<end\>" contains=ALLBUT,@rubyNotTop
+  endif
+
+  if s:foldable('class')
+    syn region rubyBlock start="\<class\>"	matchgroup=rubyClass end="\<end\>" contains=ALLBUT,@rubyNotTop fold
+  else
+    syn region rubyBlock start="\<class\>"	matchgroup=rubyClass end="\<end\>" contains=ALLBUT,@rubyNotTop
+  endif
+
+  if s:foldable('module')
+    syn region rubyBlock start="\<module\>" matchgroup=rubyModule end="\<end\>" contains=ALLBUT,@rubyNotTop fold
+  else
+    syn region rubyBlock start="\<module\>" matchgroup=rubyModule end="\<end\>" contains=ALLBUT,@rubyNotTop
+  endif
 
   " modifiers
-  syn match rubyConditionalModifier "\<\%(if\|unless\)\>"    display
-  syn match rubyRepeatModifier	     "\<\%(while\|until\)\>" display
+  syn match rubyLineContinuation    "\\$" nextgroup=rubyConditionalModifier,rubyRepeatModifier skipwhite skipnl
+  syn match rubyConditionalModifier "\<\%(if\|unless\)\>"
+  syn match rubyRepeatModifier	    "\<\%(while\|until\)\>"
+
+  if s:foldable('do')
+    syn region rubyDoBlock matchgroup=rubyControl start="\<do\>" end="\<end\>" contains=ALLBUT,@rubyNotTop fold
+  else
+    syn region rubyDoBlock matchgroup=rubyControl start="\<do\>" end="\<end\>" contains=ALLBUT,@rubyNotTop
+  endif
 
-  syn region rubyDoBlock      matchgroup=rubyControl start="\<do\>" end="\<end\>"                 contains=ALLBUT,@rubyNotTop fold
   " curly bracket block or hash literal
-  syn region rubyCurlyBlock	matchgroup=rubyCurlyBlockDelimiter  start="{" end="}"				contains=ALLBUT,@rubyNotTop fold
-  syn region rubyArrayLiteral	matchgroup=rubyArrayDelimiter	    start="\%(\w\|[\]})]\)\@<!\[" end="]"	contains=ALLBUT,@rubyNotTop fold
+  if s:foldable('{')
+    syn region rubyCurlyBlock matchgroup=rubyCurlyBlockDelimiter start="{" end="}" contains=ALLBUT,@rubyNotTop fold
+  else
+    syn region rubyCurlyBlock matchgroup=rubyCurlyBlockDelimiter start="{" end="}" contains=ALLBUT,@rubyNotTop
+  endif
+
+  if s:foldable('[')
+    syn region rubyArrayLiteral	matchgroup=rubyArrayDelimiter start="\%(\w\|[\]})]\)\@<!\[" end="]" contains=ALLBUT,@rubyNotTop fold
+  else
+    syn region rubyArrayLiteral	matchgroup=rubyArrayDelimiter start="\%(\w\|[\]})]\)\@<!\[" end="]" contains=ALLBUT,@rubyNotTop
+  endif
 
   " statements without 'do'
-  syn region rubyBlockExpression       matchgroup=rubyControl	  start="\<begin\>" end="\<end\>" contains=ALLBUT,@rubyNotTop fold
-  syn region rubyCaseExpression	       matchgroup=rubyConditional start="\<case\>"  end="\<end\>" contains=ALLBUT,@rubyNotTop fold
-  syn region rubyConditionalExpression matchgroup=rubyConditional start="\%(\%(^\|\.\.\.\=\|[{:,;([<>~\*/%&^|+=-]\|\%(\<[_[:lower:]][_[:alnum:]]*\)\@<![?!]\)\s*\)\@<=\%(if\|unless\)\>" end="\%(\%(\%(\.\@<!\.\)\|::\)\s*\)\@<!\<end\>" contains=ALLBUT,@rubyNotTop fold
+  if s:foldable('begin')
+    syn region rubyBlockExpression matchgroup=rubyControl start="\<begin\>" end="\<end\>" contains=ALLBUT,@rubyNotTop fold
+  else
+    syn region rubyBlockExpression matchgroup=rubyControl start="\<begin\>" end="\<end\>" contains=ALLBUT,@rubyNotTop
+  endif
+
+  if s:foldable('case')
+    syn region rubyCaseExpression matchgroup=rubyConditional start="\<case\>" end="\<end\>" contains=ALLBUT,@rubyNotTop fold
+  else
+    syn region rubyCaseExpression matchgroup=rubyConditional start="\<case\>" end="\<end\>" contains=ALLBUT,@rubyNotTop
+  endif
+
+  if s:foldable('if')
+    syn region rubyConditionalExpression matchgroup=rubyConditional start="\%(\%(^\|\.\.\.\=\|[{:,;([<>~\*%&^|+=-]\|\%(\<[_[:lower:]][_[:alnum:]]*\)\@<![?!]\)\s*\)\@<=\%(if\|unless\)\>" end="\%(\%(\%(\.\@1<!\.\)\|::\)\s*\)\@<!\<end\>" contains=ALLBUT,@rubyNotTop fold
+  else
+    syn region rubyConditionalExpression matchgroup=rubyConditional start="\%(\%(^\|\.\.\.\=\|[{:,;([<>~\*%&^|+=-]\|\%(\<[_[:lower:]][_[:alnum:]]*\)\@<![?!]\)\s*\)\@<=\%(if\|unless\)\>" end="\%(\%(\%(\.\@1<!\.\)\|::\)\s*\)\@<!\<end\>" contains=ALLBUT,@rubyNotTop
+  endif
 
   syn match rubyConditional "\<\%(then\|else\|when\)\>[?!]\@!"	contained containedin=rubyCaseExpression
   syn match rubyConditional "\<\%(then\|else\|elsif\)\>[?!]\@!" contained containedin=rubyConditionalExpression
@@ -237,7 +408,12 @@ if !exists("b:ruby_no_expensive") && !ex
 
   " statements with optional 'do'
   syn region rubyOptionalDoLine   matchgroup=rubyRepeat start="\<for\>[?!]\@!" start="\%(\%(^\|\.\.\.\=\|[{:,;([<>~\*/%&^|+-]\|\%(\<[_[:lower:]][_[:alnum:]]*\)\@<![!=?]\)\s*\)\@<=\<\%(until\|while\)\>" matchgroup=rubyOptionalDo end="\%(\<do\>\)" end="\ze\%(;\|$\)" oneline contains=ALLBUT,@rubyNotTop
-  syn region rubyRepeatExpression start="\<for\>[?!]\@!" start="\%(\%(^\|\.\.\.\=\|[{:,;([<>~\*/%&^|+-]\|\%(\<[_[:lower:]][_[:alnum:]]*\)\@<![!=?]\)\s*\)\@<=\<\%(until\|while\)\>" matchgroup=rubyRepeat end="\<end\>" contains=ALLBUT,@rubyNotTop nextgroup=rubyOptionalDoLine fold
+
+  if s:foldable('for')
+    syn region rubyRepeatExpression start="\<for\>[?!]\@!" start="\%(\%(^\|\.\.\.\=\|[{:,;([<>~\*/%&^|+-]\|\%(\<[_[:lower:]][_[:alnum:]]*\)\@<![!=?]\)\s*\)\@<=\<\%(until\|while\)\>" matchgroup=rubyRepeat end="\<end\>" contains=ALLBUT,@rubyNotTop nextgroup=rubyOptionalDoLine fold
+  else
+    syn region rubyRepeatExpression start="\<for\>[?!]\@!" start="\%(\%(^\|\.\.\.\=\|[{:,;([<>~\*/%&^|+-]\|\%(\<[_[:lower:]][_[:alnum:]]*\)\@<![!=?]\)\s*\)\@<=\<\%(until\|while\)\>" matchgroup=rubyRepeat end="\<end\>" contains=ALLBUT,@rubyNotTop nextgroup=rubyOptionalDoLine
+  endif
 
   if !exists("ruby_minlines")
     let ruby_minlines = 500
@@ -252,7 +428,7 @@ else
   syn match rubyKeyword "\<\%(alias\|undef\)\>[?!]\@!"
 endif
 
-" Special Methods
+" Special Methods {{{1
 if !exists("ruby_no_special_methods")
   syn keyword rubyAccess    public protected private public_class_method private_class_method public_constant private_constant module_function
   " attr is a common variable name
@@ -263,40 +439,40 @@ if !exists("ruby_no_special_methods")
   syn keyword rubyException raise fail catch throw
   " false positive with 'include?'
   syn match   rubyInclude   "\<include\>[?!]\@!"
-  syn keyword rubyInclude   autoload extend load prepend require require_relative
+  syn keyword rubyInclude   autoload extend load prepend refine require require_relative using
   syn keyword rubyKeyword   callcc caller lambda proc
 endif
 
-" Comments and Documentation
+" Comments and Documentation {{{1
 syn match   rubySharpBang "\%^#!.*" display
-syn keyword rubyTodo	  FIXME NOTE TODO OPTIMIZE XXX todo contained
+syn keyword rubyTodo	  FIXME NOTE TODO OPTIMIZE HACK REVIEW XXX todo contained
 syn match   rubyComment   "#.*" contains=rubySharpBang,rubySpaceError,rubyTodo,@Spell
-if !exists("ruby_no_comment_fold")
-  syn region rubyMultilineComment start="\%(\%(^\s*#.*\n\)\@<!\%(^\s*#.*\n\)\)\%(\(^\s*#.*\n\)\{1,}\)\@=" end="\%(^\s*#.*\n\)\@<=\%(^\s*#.*\n\)\%(^\s*#\)\@!" contains=rubyComment transparent fold keepend
+if !exists("ruby_no_comment_fold") && s:foldable('#')
+  syn region rubyMultilineComment start="^\s*#.*\n\%(^\s*#\)\@=" end="^\s*#.*\n\%(^\s*#\)\@!" contains=rubyComment transparent fold keepend
   syn region rubyDocumentation	  start="^=begin\ze\%(\s.*\)\=$" end="^=end\%(\s.*\)\=$" contains=rubySpaceError,rubyTodo,@Spell fold
 else
   syn region rubyDocumentation	  start="^=begin\s*$" end="^=end\s*$" contains=rubySpaceError,rubyTodo,@Spell
 endif
 
+" Keyword Nobbling {{{1
 " Note: this is a hack to prevent 'keywords' being highlighted as such when called as methods with an explicit receiver
-syn match rubyKeywordAsMethod "\%(\%(\.\@<!\.\)\|::\)\_s*\%(alias\|and\|begin\|break\|case\|class\|def\|defined\|do\|else\)\>"		  transparent contains=NONE
-syn match rubyKeywordAsMethod "\%(\%(\.\@<!\.\)\|::\)\_s*\%(elsif\|end\|ensure\|false\|for\|if\|in\|module\|next\|nil\)\>"		  transparent contains=NONE
-syn match rubyKeywordAsMethod "\%(\%(\.\@<!\.\)\|::\)\_s*\%(not\|or\|redo\|rescue\|retry\|return\|self\|super\|then\|true\)\>"		  transparent contains=NONE
-syn match rubyKeywordAsMethod "\%(\%(\.\@<!\.\)\|::\)\_s*\%(undef\|unless\|until\|when\|while\|yield\|BEGIN\|END\|__FILE__\|__LINE__\)\>" transparent contains=NONE
-
-syn match rubyKeywordAsMethod "\<\%(alias\|begin\|case\|class\|def\|do\|end\)[?!]" transparent contains=NONE
-syn match rubyKeywordAsMethod "\<\%(if\|module\|undef\|unless\|until\|while\)[?!]" transparent contains=NONE
+syn match rubyKeywordAsMethod "\%(\%(\.\@1<!\.\)\|::\)\_s*\%([_[:lower:]][_[:alnum:]]*\|\<\%(BEGIN\|END\)\>\)" transparent contains=NONE
+syn match rubyKeywordAsMethod "\(defined?\|exit!\)\@!\<[_[:lower:]][_[:alnum:]]*[?!]"			       transparent contains=NONE
 
-syn match rubyKeywordAsMethod "\%(\%(\.\@<!\.\)\|::\)\_s*\%(abort\|at_exit\|attr\|attr_accessor\|attr_reader\)\>"	transparent contains=NONE
-syn match rubyKeywordAsMethod "\%(\%(\.\@<!\.\)\|::\)\_s*\%(attr_writer\|autoload\|callcc\|catch\|caller\)\>"		transparent contains=NONE
-syn match rubyKeywordAsMethod "\%(\%(\.\@<!\.\)\|::\)\_s*\%(eval\|class_eval\|instance_eval\|module_eval\|exit\)\>"	transparent contains=NONE
-syn match rubyKeywordAsMethod "\%(\%(\.\@<!\.\)\|::\)\_s*\%(extend\|fail\|fork\|include\|lambda\)\>"			transparent contains=NONE
-syn match rubyKeywordAsMethod "\%(\%(\.\@<!\.\)\|::\)\_s*\%(load\|loop\|prepend\|private\|proc\|protected\)\>"		transparent contains=NONE
-syn match rubyKeywordAsMethod "\%(\%(\.\@<!\.\)\|::\)\_s*\%(public\|require\|require_relative\|raise\|throw\|trap\)\>"	transparent contains=NONE
+" More Symbols {{{1
+syn match  rubySymbol		"\%([{(,]\_s*\)\zs\l\w*[!?]\=::\@!"he=e-1
+syn match  rubySymbol		"[]})\"':]\@1<!\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*[!?]\=:[[:space:],]\@="he=e-1
+syn match  rubySymbol		"\%([{(,]\_s*\)\zs[[:space:],{]\l\w*[!?]\=::\@!"hs=s+1,he=e-1
+syn match  rubySymbol		"[[:space:],{(]\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*[!?]\=:[[:space:],]\@="hs=s+1,he=e-1
 
-" __END__ Directive
-syn region rubyData matchgroup=rubyDataDirective start="^__END__$" end="\%$" fold
+" __END__ Directive {{{1
+if s:foldable('__END__')
+  syn region rubyData matchgroup=rubyDataDirective start="^__END__$" end="\%$" fold
+else
+  syn region rubyData matchgroup=rubyDataDirective start="^__END__$" end="\%$"
+endif
 
+" Default Highlighting {{{1
 hi def link rubyClass			rubyDefine
 hi def link rubyModule			rubyDefine
 hi def link rubyMethodExceptional	rubyDefine
@@ -336,6 +512,7 @@ hi def link rubyAccess			Statement
 hi def link rubyAttribute		Statement
 hi def link rubyEval			Statement
 hi def link rubyPseudoVariable		Constant
+hi def link rubyCapitalizedMethod	rubyLocalVariableOrMethod
 
 hi def link rubyComment			Comment
 hi def link rubyData			Comment
@@ -349,7 +526,7 @@ hi def link rubyInterpolationDelimiter	D
 hi def link rubyNoInterpolation		rubyString
 hi def link rubySharpBang		PreProc
 hi def link rubyRegexpDelimiter		rubyStringDelimiter
-hi def link rubySymbolDelimiter		rubyStringDelimiter
+hi def link rubySymbolDelimiter		rubySymbol
 hi def link rubyStringDelimiter		Delimiter
 hi def link rubyHeredoc			rubyString
 hi def link rubyString			String
@@ -366,6 +543,10 @@ hi def link rubyInvalidVariable		Error
 hi def link rubyError			Error
 hi def link rubySpaceError		rubyError
 
+" Postscript {{{1
 let b:current_syntax = "ruby"
 
-" vim: nowrap sw=2 sts=2 ts=8 noet:
+let &cpo = s:cpo_sav
+unlet! s:cpo_sav
+
+" vim: nowrap sw=2 sts=2 ts=8 noet fdm=marker:
diff --git a/runtime/syntax/samba.vim b/runtime/syntax/samba.vim
--- a/runtime/syntax/samba.vim
+++ b/runtime/syntax/samba.vim
@@ -8,11 +8,8 @@
 "
 " Don't forget to run your config file through testparm(1)!
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -107,24 +104,16 @@ syn keyword sambaKeyword contained shutd
 syn keyword sambaKeyword contained store unknown unwriteable
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_samba_syn_inits")
-  if version < 508
-    let did_samba_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink sambaParameter Normal
-  HiLink sambaKeyword   Type
-  HiLink sambaSection   Statement
-  HiLink sambaMacro     PreProc
-  HiLink sambaComment   Comment
-  HiLink sambaContinue  Operator
-  HiLink sambaBoolean   Constant
-  delcommand HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink sambaParameter Normal
+HiLink sambaKeyword   Type
+HiLink sambaSection   Statement
+HiLink sambaMacro     PreProc
+HiLink sambaComment   Comment
+HiLink sambaContinue  Operator
+HiLink sambaBoolean   Constant
+delcommand HiLink
 
 let b:current_syntax = "samba"
 
diff --git a/runtime/syntax/sas.vim b/runtime/syntax/sas.vim
--- a/runtime/syntax/sas.vim
+++ b/runtime/syntax/sas.vim
@@ -12,11 +12,8 @@
 "		Attempted to match SAS default syntax colors;
 "		Changed syncing so it doesn't lose colors on large blocks;
 "		Much thanks to Bob Heckel for knowledgeable tweaking.
-"  For version 5.x: Clear all syntax items
-"  For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-   syntax clear
-elseif exists("b:current_syntax")
+"  quit when a syntax file was already loaded
+if exists("b:current_syntax")
    finish
 endif
 
@@ -52,11 +49,7 @@ syn region sasComment start="^\s*\*" end
 " Thanks to ronald höllwarth for this fix to an intra-versioning
 " problem with this little feature
 
-if version < 600
-   syn region sasMacroVar	start="\&" skip="[_&]" end="\W"he=e-1
-else		 " for the older Vim's just do it their way ...
-   syn region sasMacroVar	start="&" skip="[_&]" end="\W"he=e-1
-endif
+syn region sasMacroVar	start="&" skip="[_&]" end="\W"he=e-1
 
 
 " I dont think specific PROCs need to be listed if use this line (Bob Heckel).
@@ -218,62 +211,54 @@ syn keyword sasUnderscore	_ALL_ _AUTOMAT
 " End of SAS Functions
 
 "  Define the default highlighting.
-"  For version 5.7 and earlier: only when not done already
-"  For version 5.8 and later: only when an item doesn't have highlighting yet
+"  Only when an item doesn't have highlighting yet
 
-if version >= 508 || !exists("did_sas_syntax_inits")
-   if version < 508
-      let did_sas_syntax_inits = 1
-      command -nargs=+ HiLink hi link <args>
-   else
-      command -nargs=+ HiLink hi def link <args>
-   endif
+command -nargs=+ HiLink hi def link <args>
 
-   " Default sas enhanced editor color syntax
-	hi sComment	term=bold cterm=NONE ctermfg=Green ctermbg=Black gui=NONE guifg=DarkGreen guibg=White
-	hi sCard	term=bold cterm=NONE ctermfg=Black ctermbg=Yellow gui=NONE guifg=Black guibg=LightYellow
-	hi sDate_Time	term=NONE cterm=bold ctermfg=Green ctermbg=Black gui=bold guifg=SeaGreen guibg=White
-	hi sKeyword	term=NONE cterm=NONE ctermfg=Blue  ctermbg=Black gui=NONE guifg=Blue guibg=White
-	hi sFmtInfmt	term=NONE cterm=NONE ctermfg=LightGreen ctermbg=Black gui=NONE guifg=SeaGreen guibg=White
-	hi sString	term=NONE cterm=NONE ctermfg=Magenta ctermbg=Black gui=NONE guifg=Purple guibg=White
-	hi sText	term=NONE cterm=NONE ctermfg=White ctermbg=Black gui=bold guifg=Black guibg=White
-	hi sNumber	term=NONE cterm=bold ctermfg=Green ctermbg=Black gui=bold guifg=SeaGreen guibg=White
-	hi sProc	term=NONE cterm=bold ctermfg=Blue ctermbg=Black gui=bold guifg=Navy guibg=White
-	hi sSection	term=NONE cterm=bold ctermfg=Blue ctermbg=Black gui=bold guifg=Navy guibg=White
-	hi mDefine	term=NONE cterm=bold ctermfg=White ctermbg=Black gui=bold guifg=Black guibg=White
-	hi mKeyword	term=NONE cterm=NONE ctermfg=Blue ctermbg=Black gui=NONE guifg=Blue guibg=White
-	hi mReference	term=NONE cterm=bold ctermfg=White ctermbg=Black gui=bold guifg=Blue guibg=White
-	hi mSection	term=NONE cterm=NONE ctermfg=Blue ctermbg=Black gui=bold guifg=Navy guibg=White
-	hi mText	term=NONE cterm=NONE ctermfg=White ctermbg=Black gui=bold guifg=Black guibg=White
+" Default sas enhanced editor color syntax
+hi sComment	term=bold cterm=NONE ctermfg=Green ctermbg=Black gui=NONE guifg=DarkGreen guibg=White
+hi sCard	term=bold cterm=NONE ctermfg=Black ctermbg=Yellow gui=NONE guifg=Black guibg=LightYellow
+hi sDate_Time	term=NONE cterm=bold ctermfg=Green ctermbg=Black gui=bold guifg=SeaGreen guibg=White
+hi sKeyword	term=NONE cterm=NONE ctermfg=Blue  ctermbg=Black gui=NONE guifg=Blue guibg=White
+hi sFmtInfmt	term=NONE cterm=NONE ctermfg=LightGreen ctermbg=Black gui=NONE guifg=SeaGreen guibg=White
+hi sString	term=NONE cterm=NONE ctermfg=Magenta ctermbg=Black gui=NONE guifg=Purple guibg=White
+hi sText	term=NONE cterm=NONE ctermfg=White ctermbg=Black gui=bold guifg=Black guibg=White
+hi sNumber	term=NONE cterm=bold ctermfg=Green ctermbg=Black gui=bold guifg=SeaGreen guibg=White
+hi sProc	term=NONE cterm=bold ctermfg=Blue ctermbg=Black gui=bold guifg=Navy guibg=White
+hi sSection	term=NONE cterm=bold ctermfg=Blue ctermbg=Black gui=bold guifg=Navy guibg=White
+hi mDefine	term=NONE cterm=bold ctermfg=White ctermbg=Black gui=bold guifg=Black guibg=White
+hi mKeyword	term=NONE cterm=NONE ctermfg=Blue ctermbg=Black gui=NONE guifg=Blue guibg=White
+hi mReference	term=NONE cterm=bold ctermfg=White ctermbg=Black gui=bold guifg=Blue guibg=White
+hi mSection	term=NONE cterm=NONE ctermfg=Blue ctermbg=Black gui=bold guifg=Navy guibg=White
+hi mText	term=NONE cterm=NONE ctermfg=White ctermbg=Black gui=bold guifg=Black guibg=White
 
 " Colors that closely match SAS log colors for default color scheme
-	hi lError	term=NONE cterm=NONE ctermfg=Red ctermbg=Black gui=none guifg=Red guibg=White
-	hi lWarning	term=NONE cterm=NONE ctermfg=Green ctermbg=Black gui=none guifg=Green guibg=White
-	hi lNote	term=NONE cterm=NONE ctermfg=Cyan ctermbg=Black gui=none guifg=Blue guibg=White
+hi lError	term=NONE cterm=NONE ctermfg=Red ctermbg=Black gui=none guifg=Red guibg=White
+hi lWarning	term=NONE cterm=NONE ctermfg=Green ctermbg=Black gui=none guifg=Green guibg=White
+hi lNote	term=NONE cterm=NONE ctermfg=Cyan ctermbg=Black gui=none guifg=Blue guibg=White
 
 
-   " Special hilighting for the SAS proc section
+" Special hilighting for the SAS proc section
 
-	HiLink	sasComment	sComment
-	HiLink	sasConditional	sKeyword
-	HiLink	sasStep		sSection
-	HiLink	sasFunction	sKeyword
-	HiLink	sasMacro	mKeyword
-	HiLink	sasMacroVar	NonText
-	HiLink	sasNumber	sNumber
-	HiLink	sasStatement	sKeyword
-	HiLink	sasString	sString
-	HiLink	sasProc		sProc
-   " (Bob Heckel)
-	HiLink	sasTodo		Todo
-	HiLink	sasErrMsg	lError
-	HiLink	sasWarnMsg	lWarning
-	HiLink	sasLogMsg	lNote
-	HiLink	sasCards	sCard
-  " (Bob Heckel)
-	HiLink	sasUnderscore	PreProc
-	delcommand HiLink
-endif
+HiLink	sasComment	sComment
+HiLink	sasConditional	sKeyword
+HiLink	sasStep		sSection
+HiLink	sasFunction	sKeyword
+HiLink	sasMacro	mKeyword
+HiLink	sasMacroVar	NonText
+HiLink	sasNumber	sNumber
+HiLink	sasStatement	sKeyword
+HiLink	sasString	sString
+HiLink	sasProc		sProc
+" (Bob Heckel)
+HiLink	sasTodo		Todo
+HiLink	sasErrMsg	lError
+HiLink	sasWarnMsg	lWarning
+HiLink	sasLogMsg	lNote
+HiLink	sasCards	sCard
+" (Bob Heckel)
+HiLink	sasUnderscore	PreProc
+delcommand HiLink
 
 " Syncronize from beginning to keep large blocks from losing
 " syntax coloring while moving through code.
diff --git a/runtime/syntax/sass.vim b/runtime/syntax/sass.vim
--- a/runtime/syntax/sass.vim
+++ b/runtime/syntax/sass.vim
@@ -2,7 +2,7 @@
 " Language:	Sass
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
 " Filenames:	*.sass
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists("b:current_syntax")
   finish
@@ -13,7 +13,7 @@ runtime! syntax/css.vim
 syn case ignore
 
 syn cluster sassCssProperties contains=cssFontProp,cssFontDescriptorProp,cssColorProp,cssTextProp,cssBoxProp,cssGeneratedContentProp,cssPagingProp,cssUIProp,cssRenderProp,cssAuralProp,cssTableProp
-syn cluster sassCssAttributes contains=css.*Attr,scssComment,cssValue.*,cssColor,cssURL,sassDefault,cssImportant,cssError,cssStringQ,cssStringQQ,cssFunction,cssUnicodeEscape,cssRenderProp
+syn cluster sassCssAttributes contains=css.*Attr,sassEndOfLineComment,scssComment,cssValue.*,cssColor,cssURL,sassDefault,cssImportant,cssError,cssStringQ,cssStringQQ,cssFunction,cssUnicodeEscape,cssRenderProp
 
 syn region sassDefinition matchgroup=cssBraces start="{" end="}" contains=TOP
 
@@ -58,6 +58,9 @@ syn match sassAmpersand  "&"
 " TODO: Attribute namespaces
 " TODO: Arithmetic (including strings and concatenation)
 
+syn region sassMediaQuery matchgroup=sassMedia start="@media" end="[{};]\@=\|$" contains=sassMediaOperators
+syn keyword sassMediaOperators and not only contained
+syn region sassCharset start="@charset" end=";\|$" contains=scssComment,cssStringQ,cssStringQQ,cssURL,cssUnicodeEscape,cssMediaType
 syn region sassInclude start="@import" end=";\|$" contains=scssComment,cssStringQ,cssStringQQ,cssURL,cssUnicodeEscape,cssMediaType
 syn region sassDebugLine end=";\|$" matchgroup=sassDebug start="@debug\>" contains=@sassCssAttributes,sassVariable,sassFunction
 syn region sassWarnLine end=";\|$" matchgroup=sassWarn start="@warn\>" contains=@sassCssAttributes,sassVariable,sassFunction
@@ -67,7 +70,9 @@ syn keyword sassFor from to through in c
 syn keyword sassTodo        FIXME NOTE TODO OPTIMIZE XXX contained
 syn region  sassComment     start="^\z(\s*\)//"  end="^\%(\z1 \)\@!" contains=sassTodo,@Spell
 syn region  sassCssComment  start="^\z(\s*\)/\*" end="^\%(\z1 \)\@!" contains=sassTodo,@Spell
+syn match   sassEndOfLineComment "//.*" contains=sassComment,sassTodo,@Spell
 
+hi def link sassEndOfLineComment        sassComment
 hi def link sassCssComment              sassComment
 hi def link sassComment                 Comment
 hi def link sassDefault                 cssImportant
@@ -80,6 +85,9 @@ hi def link sassExtend                  
 hi def link sassFunctionDecl            PreProc
 hi def link sassReturn                  PreProc
 hi def link sassTodo                    Todo
+hi def link sassCharset                 PreProc
+hi def link sassMedia                   PreProc
+hi def link sassMediaOperators          PreProc
 hi def link sassInclude                 Include
 hi def link sassDebug                   sassControl
 hi def link sassWarn                    sassControl
diff --git a/runtime/syntax/sather.vim b/runtime/syntax/sather.vim
--- a/runtime/syntax/sather.vim
+++ b/runtime/syntax/sather.vim
@@ -9,11 +9,8 @@
 " Homepage: http://www.icsi.berkeley.edu/~sather
 " Sather files use .sa as suffix
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -61,44 +58,36 @@ syn match   satherComment	  "--.*" conta
 syn sync ccomment satherComment
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_sather_syn_inits")
-  if version < 508
-    let did_sather_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink satherBranch		satherStatement
-  HiLink satherLabel		satherStatement
-  HiLink satherConditional	satherStatement
-  HiLink satherSynchronize	satherStatement
-  HiLink satherRepeat		satherStatement
-  HiLink satherExceptions	satherStatement
-  HiLink satherStorageClass	satherDeclarative
-  HiLink satherMethodDecl	satherDeclarative
-  HiLink satherClassDecl	satherDeclarative
-  HiLink satherScopeDecl	satherDeclarative
-  HiLink satherBoolValue	satherValue
-  HiLink satherSpecial		satherValue
-  HiLink satherString		satherValue
-  HiLink satherCharacter	satherValue
-  HiLink satherSpecialCharacter satherValue
-  HiLink satherNumber		satherValue
-  HiLink satherStatement	Statement
-  HiLink satherOperator		Statement
-  HiLink satherComment		Comment
-  HiLink satherType		Type
-  HiLink satherValue		String
-  HiLink satherString		String
-  HiLink satherSpecial		String
-  HiLink satherCharacter	String
-  HiLink satherDeclarative	Type
-  HiLink satherExternal		PreCondit
-  delcommand HiLink
-endif
+HiLink satherBranch		satherStatement
+HiLink satherLabel		satherStatement
+HiLink satherConditional	satherStatement
+HiLink satherSynchronize	satherStatement
+HiLink satherRepeat		satherStatement
+HiLink satherExceptions	satherStatement
+HiLink satherStorageClass	satherDeclarative
+HiLink satherMethodDecl	satherDeclarative
+HiLink satherClassDecl	satherDeclarative
+HiLink satherScopeDecl	satherDeclarative
+HiLink satherBoolValue	satherValue
+HiLink satherSpecial		satherValue
+HiLink satherString		satherValue
+HiLink satherCharacter	satherValue
+HiLink satherSpecialCharacter satherValue
+HiLink satherNumber		satherValue
+HiLink satherStatement	Statement
+HiLink satherOperator		Statement
+HiLink satherComment		Comment
+HiLink satherType		Type
+HiLink satherValue		String
+HiLink satherString		String
+HiLink satherSpecial		String
+HiLink satherCharacter	String
+HiLink satherDeclarative	Type
+HiLink satherExternal		PreCondit
+delcommand HiLink
 
 let b:current_syntax = "sather"
 
diff --git a/runtime/syntax/scala.vim b/runtime/syntax/scala.vim
--- a/runtime/syntax/scala.vim
+++ b/runtime/syntax/scala.vim
@@ -7,9 +7,8 @@
 " ----------------------------------------------------------------------------
 
 if !exists('main_syntax')
-  if version < 600
-    syntax clear
-  elseif exists("b:current_syntax")
+  " quit when a syntax file was already loaded
+  if exists("b:current_syntax")
     finish
   endif
   let main_syntax = 'scala'
diff --git a/runtime/syntax/scheme.vim b/runtime/syntax/scheme.vim
--- a/runtime/syntax/scheme.vim
+++ b/runtime/syntax/scheme.vim
@@ -14,11 +14,8 @@
 
 " Initializing:
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -64,11 +61,7 @@ syn region schemeUnquote matchgroup=Deli
 
 " R5RS Scheme Functions and Syntax:
 
-if version < 600
-  set iskeyword=33,35-39,42-58,60-90,94,95,97-122,126,_
-else
-  setlocal iskeyword=33,35-39,42-58,60-90,94,95,97-122,126,_
-endif
+setlocal iskeyword=33,35-39,42-58,60-90,94,95,97-122,126,_
 
 syn keyword schemeSyntax lambda and or if cond case define let let* letrec
 syn keyword schemeSyntax begin do delay set! else =>
@@ -306,38 +299,30 @@ syn sync match matchPlace grouphere NONE
 " ... i.e. synchronize on a line that starts at the left margin
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_scheme_syntax_inits")
-  if version < 508
-    let did_scheme_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink schemeSyntax		Statement
-  HiLink schemeFunc		Function
+HiLink schemeSyntax		Statement
+HiLink schemeFunc		Function
+
+HiLink schemeString		String
+HiLink schemeCharacter	Character
+HiLink schemeNumber		Number
+HiLink schemeBoolean		Boolean
 
-  HiLink schemeString		String
-  HiLink schemeCharacter	Character
-  HiLink schemeNumber		Number
-  HiLink schemeBoolean		Boolean
+HiLink schemeDelimiter	Delimiter
+HiLink schemeConstant		Constant
 
-  HiLink schemeDelimiter	Delimiter
-  HiLink schemeConstant		Constant
+HiLink schemeComment		Comment
+HiLink schemeMultilineComment	Comment
+HiLink schemeError		Error
 
-  HiLink schemeComment		Comment
-  HiLink schemeMultilineComment	Comment
-  HiLink schemeError		Error
+HiLink schemeExtSyntax	Type
+HiLink schemeExtFunc		PreProc
 
-  HiLink schemeExtSyntax	Type
-  HiLink schemeExtFunc		PreProc
+HiLink schemeLang		PreProc
 
-  HiLink schemeLang		PreProc
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "scheme"
 
diff --git a/runtime/syntax/scilab.vim b/runtime/syntax/scilab.vim
--- a/runtime/syntax/scilab.vim
+++ b/runtime/syntax/scilab.vim
@@ -9,11 +9,8 @@
 "
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -66,49 +63,41 @@ syn match scilabOverload			"%[A-Za-z0-9?
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_scilab_syntax_inits")
-	if version < 508
-		let did_scilab_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink	scilabStatement				Statement
-	HiLink	scilabFunction				Keyword
-	HiLink	scilabPredicate				Keyword
-	HiLink	scilabKeyword				Keyword
-	HiLink	scilabDebug					Debug
-	HiLink	scilabRepeat				Repeat
-	HiLink	scilabConditional			Conditional
-	HiLink	scilabMultiplex				Conditional
+HiLink	scilabStatement				Statement
+HiLink	scilabFunction				Keyword
+HiLink	scilabPredicate				Keyword
+HiLink	scilabKeyword				Keyword
+HiLink	scilabDebug					Debug
+HiLink	scilabRepeat				Repeat
+HiLink	scilabConditional			Conditional
+HiLink	scilabMultiplex				Conditional
 
-	HiLink	scilabConstant				Constant
-	HiLink	scilabBoolean				Boolean
+HiLink	scilabConstant				Constant
+HiLink	scilabBoolean				Boolean
 
-	HiLink	scilabDelimiter				Delimiter
-	HiLink	scilabMlistAccess			Delimiter
-	HiLink	scilabComparison			Operator
-	HiLink	scilabLogical				Operator
-	HiLink	scilabAssignment			Operator
-	HiLink	scilabArithmetic			Operator
-	HiLink	scilabRange					Operator
-	HiLink	scilabLineContinuation		Underlined
-	HiLink	scilabTransposition			Operator
+HiLink	scilabDelimiter				Delimiter
+HiLink	scilabMlistAccess			Delimiter
+HiLink	scilabComparison			Operator
+HiLink	scilabLogical				Operator
+HiLink	scilabAssignment			Operator
+HiLink	scilabArithmetic			Operator
+HiLink	scilabRange					Operator
+HiLink	scilabLineContinuation		Underlined
+HiLink	scilabTransposition			Operator
 
-	HiLink	scilabTodo					Todo
-	HiLink	scilabComment				Comment
-
-	HiLink	scilabNumber				Number
-	HiLink	scilabString				String
+HiLink	scilabTodo					Todo
+HiLink	scilabComment				Comment
 
-	HiLink	scilabIdentifier			Identifier
-	HiLink	scilabOverload				Special
+HiLink	scilabNumber				Number
+HiLink	scilabString				String
 
-	delcommand HiLink
-endif
+HiLink	scilabIdentifier			Identifier
+HiLink	scilabOverload				Special
+
+delcommand HiLink
 
 let b:current_syntax = "scilab"
 
diff --git a/runtime/syntax/sd.vim b/runtime/syntax/sd.vim
--- a/runtime/syntax/sd.vim
+++ b/runtime/syntax/sd.vim
@@ -5,9 +5,8 @@
 " URL: http://netstudent.polito.it/vim_syntax/
 " Last Change: 2012 Feb 03 by Thilo Six
 
-if version < 600
-        syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
         finish
 endif
 
@@ -51,29 +50,22 @@ syn keyword sdSpecial TRUE FALSE NULL
 syn keyword sdDelimiter STREAM STREAM_END
 syn match sdError /^search .\{257,}/
 
-if version >= 508 || !exists("did_config_syntax_inits")
-        if version < 508
-                let did_config_syntax_inits = 1
-                command! -nargs=+ HiLink hi link <args>
-        else
-                command! -nargs=+ HiLink hi def link <args>
-        endif
+command! -nargs=+ HiLink hi def link <args>
 
-        HiLink sdIP Number
-		  HiLink sdHostname Type
-        HiLink sdEncoding Identifier
-        HiLink sdCoding Identifier
-        HiLink sdSource Identifier
-        HiLink sdComment Comment
-        HiLink sdIPError Error
-        HiLink sdError Error
-        HiLink sdStatement Statement
-        HiLink sdIPSpecial Special
-        HiLink sdSpecial Special
-		  HiLink sdDelimiter Delimiter
+HiLink sdIP Number
+HiLink sdHostname Type
+HiLink sdEncoding Identifier
+HiLink sdCoding Identifier
+HiLink sdSource Identifier
+HiLink sdComment Comment
+HiLink sdIPError Error
+HiLink sdError Error
+HiLink sdStatement Statement
+HiLink sdIPSpecial Special
+HiLink sdSpecial Special
+HiLink sdDelimiter Delimiter
 
-        delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "sd"
 
diff --git a/runtime/syntax/sdl.vim b/runtime/syntax/sdl.vim
--- a/runtime/syntax/sdl.vim
+++ b/runtime/syntax/sdl.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Michael Piefel <entwurf@piefel.de>
 " Last Change:	2 May 2001
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -129,38 +126,29 @@ syn keyword sdlType		STRING OBJECT IDENT
 syn sync ccomment sdlComment
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_sdl_syn_inits")
-    if version < 508
-	let did_sdl_syn_inits = 1
-	command -nargs=+ HiLink hi link <args>
-	command -nargs=+ Hi     hi <args>
-    else
-	command -nargs=+ HiLink hi def link <args>
-	command -nargs=+ Hi     hi def <args>
-    endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+command -nargs=+ Hi     hi def <args>
 
-    HiLink  sdlException	Label
-    HiLink  sdlConditional	sdlStatement
-    HiLink  sdlVirtual		sdlStatement
-    HiLink  sdlExported		sdlFlag
-    HiLink  sdlCommentError	sdlError
-    HiLink  sdlOperator		Operator
-    HiLink  sdlStructure	sdlType
-    Hi	    sdlStatement	term=bold ctermfg=4 guifg=Blue
-    Hi	    sdlFlag		term=bold ctermfg=4 guifg=Blue gui=italic
-    Hi	    sdlNewState		term=italic ctermfg=2 guifg=Magenta gui=underline
-    Hi	    sdlInput		term=bold guifg=Red
-    HiLink  sdlType		Type
-    HiLink  sdlString		String
-    HiLink  sdlComment		Comment
-    HiLink  sdlSpecial		Special
-    HiLink  sdlError		Error
+HiLink  sdlException	Label
+HiLink  sdlConditional	sdlStatement
+HiLink  sdlVirtual		sdlStatement
+HiLink  sdlExported		sdlFlag
+HiLink  sdlCommentError	sdlError
+HiLink  sdlOperator		Operator
+HiLink  sdlStructure	sdlType
+Hi	    sdlStatement	term=bold ctermfg=4 guifg=Blue
+Hi	    sdlFlag		term=bold ctermfg=4 guifg=Blue gui=italic
+Hi	    sdlNewState		term=italic ctermfg=2 guifg=Magenta gui=underline
+Hi	    sdlInput		term=bold guifg=Red
+HiLink  sdlType		Type
+HiLink  sdlString		String
+HiLink  sdlComment		Comment
+HiLink  sdlSpecial		Special
+HiLink  sdlError		Error
 
-    delcommand HiLink
-    delcommand Hi
-endif
+delcommand HiLink
+delcommand Hi
 
 let b:current_syntax = "sdl"
 
diff --git a/runtime/syntax/sed.vim b/runtime/syntax/sed.vim
--- a/runtime/syntax/sed.vim
+++ b/runtime/syntax/sed.vim
@@ -4,11 +4,8 @@
 " URL:		http://folk.uio.no/hakonrk/vim/syntax/sed.vim
 " Last Change:	2010 May 29
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -75,45 +72,38 @@ syn region sedReplacement64 matchgroup=S
 " (y) does not allow any flags.  To save memory, I ignore this problem.
 syn match sedST	"[sy]" nextgroup=sedRegexp\d\+
 
-if version >= 508 || !exists("did_sed_syntax_inits")
-    if version < 508
-	let did_sed_syntax_inits = 1
-	command -nargs=+ HiLink hi link <args>
-    else
-	command -nargs=+ HiLink hi def link <args>
-    endif
+command -nargs=+ HiLink hi def link <args>
 
-    HiLink sedAddress		Macro
-    HiLink sedACI		NONE
-    HiLink sedBranch		Label
-    HiLink sedComment		Comment
-    HiLink sedDelete		Function
-    HiLink sedError		Error
-    HiLink sedFlag		Type
-    HiLink sedFlagwrite		Constant
-    HiLink sedFunction		Function
-    HiLink sedLabel		Label
-    HiLink sedLineCont		Special
-    HiLink sedPutHoldspc	Function
-    HiLink sedReplaceMeta	Special
-    HiLink sedRegexpMeta	Special
-    HiLink sedRW		Constant
-    HiLink sedSemicolon		Special
-    HiLink sedST		Function
-    HiLink sedSpecial		Special
-    HiLink sedWhitespace	NONE
-    if exists("highlight_sedtabs")
-	HiLink sedTab		Todo
-    endif
-    let __sed_i = char2nr(" ") " ASCII: 32, EBCDIC: 64
-    while __sed_i <= __sed_last
-	exe "HiLink sedRegexp".__sed_i		"Macro"
-	exe "HiLink sedReplacement".__sed_i	"NONE"
-	let __sed_i = __sed_i + 1
-    endwhile
+HiLink sedAddress		Macro
+HiLink sedACI		NONE
+HiLink sedBranch		Label
+HiLink sedComment		Comment
+HiLink sedDelete		Function
+HiLink sedError		Error
+HiLink sedFlag		Type
+HiLink sedFlagwrite		Constant
+HiLink sedFunction		Function
+HiLink sedLabel		Label
+HiLink sedLineCont		Special
+HiLink sedPutHoldspc	Function
+HiLink sedReplaceMeta	Special
+HiLink sedRegexpMeta	Special
+HiLink sedRW		Constant
+HiLink sedSemicolon		Special
+HiLink sedST		Function
+HiLink sedSpecial		Special
+HiLink sedWhitespace	NONE
+if exists("highlight_sedtabs")
+HiLink sedTab		Todo
+endif
+let __sed_i = char2nr(" ") " ASCII: 32, EBCDIC: 64
+while __sed_i <= __sed_last
+exe "HiLink sedRegexp".__sed_i		"Macro"
+exe "HiLink sedReplacement".__sed_i	"NONE"
+let __sed_i = __sed_i + 1
+endwhile
 
-    delcommand HiLink
-endif
+delcommand HiLink
 
 unlet __sed_i __sed_last __sed_delimiter __sed_metacharacters
 
diff --git a/runtime/syntax/sendpr.vim b/runtime/syntax/sendpr.vim
--- a/runtime/syntax/sendpr.vim
+++ b/runtime/syntax/sendpr.vim
@@ -5,11 +5,8 @@
 "
 " http://raisdorf.net/files/misc/send-pr.vim
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/sgml.vim b/runtime/syntax/sgml.vim
--- a/runtime/syntax/sgml.vim
+++ b/runtime/syntax/sgml.vim
@@ -5,11 +5,8 @@
 " Filenames:	*.sgml,*.sgm
 " $Id: sgml.vim,v 1.1 2004/06/13 17:52:57 vimboss Exp $
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/sgmldecl.vim b/runtime/syntax/sgmldecl.vim
--- a/runtime/syntax/sgmldecl.vim
+++ b/runtime/syntax/sgmldecl.vim
@@ -5,11 +5,8 @@
 " You can modify and maintain this file, in other case send comments
 " the maintainer email address.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 let s:keepcpo= &cpo
@@ -52,30 +49,22 @@ syn sync lines=250
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_sgmldecl_syntax_init")
-  if version < 508
-    let did_sgmldecl_syntax_init = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-      HiLink	sgmldeclDeclKeys	Keyword
-      HiLink	sgmldeclTypes		Type
-      HiLink	sgmldeclConst		Constant
-      HiLink	sgmldeclNConst		Constant
-      HiLink	sgmldeclString		String
-      HiLink	sgmldeclDeclBlock	Normal
-      HiLink	sgmldeclBool		Boolean
-      HiLink	sgmldeclSpecial		Special
-      HiLink	sgmldeclComment		Comment
-      HiLink	sgmldeclStatem		Statement
-	  HiLink	sgmldeclVariables	Type
+HiLink	sgmldeclDeclKeys	Keyword
+HiLink	sgmldeclTypes		Type
+HiLink	sgmldeclConst		Constant
+HiLink	sgmldeclNConst		Constant
+HiLink	sgmldeclString		String
+HiLink	sgmldeclDeclBlock	Normal
+HiLink	sgmldeclBool		Boolean
+HiLink	sgmldeclSpecial		Special
+HiLink	sgmldeclComment		Comment
+HiLink	sgmldeclStatem		Statement
+HiLink	sgmldeclVariables	Type
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "sgmldecl"
 
diff --git a/runtime/syntax/sgmllnx.vim b/runtime/syntax/sgmllnx.vim
--- a/runtime/syntax/sgmllnx.vim
+++ b/runtime/syntax/sgmllnx.vim
@@ -3,11 +3,8 @@
 " Maintainer:	SungHyun Nam <goweol@gmail.com>
 " Last Change:	2013 May 13
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -36,31 +33,23 @@ syn region sgmllnxComment start=+<!--+ e
 syn region sgmllnxDocType start=+<!doctype+ end=+>+
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_sgmllnx_syn_inits")
-  if version < 508
-    let did_sgmllnx_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink sgmllnxTag2	    Function
-  HiLink sgmllnxTagN2	    Function
-  HiLink sgmllnxTag	    Special
-  HiLink sgmllnxEndTag	    Special
-  HiLink sgmllnxParen	    Special
-  HiLink sgmllnxEntity	    Type
-  HiLink sgmllnxDocEnt	    Type
-  HiLink sgmllnxTagName	    Statement
-  HiLink sgmllnxComment	    Comment
-  HiLink sgmllnxSpecial	    Special
-  HiLink sgmllnxDocType	    PreProc
-  HiLink sgmllnxTagError    Error
+HiLink sgmllnxTag2	    Function
+HiLink sgmllnxTagN2	    Function
+HiLink sgmllnxTag	    Special
+HiLink sgmllnxEndTag	    Special
+HiLink sgmllnxParen	    Special
+HiLink sgmllnxEntity	    Type
+HiLink sgmllnxDocEnt	    Type
+HiLink sgmllnxTagName	    Statement
+HiLink sgmllnxComment	    Comment
+HiLink sgmllnxSpecial	    Special
+HiLink sgmllnxDocType	    PreProc
+HiLink sgmllnxTagError    Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "sgmllnx"
 
diff --git a/runtime/syntax/sh.vim b/runtime/syntax/sh.vim
--- a/runtime/syntax/sh.vim
+++ b/runtime/syntax/sh.vim
@@ -8,11 +8,8 @@
 " For options and settings, please use:      :help ft-sh-syntax
 " This file includes many ideas from Eric Brunet (eric.brunet@ens.fr)
 
-" For version 5.x: Clear all syntax items {{{1
-" For version 6.x: Quit when a syntax file was already loaded
-if v:version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/sicad.vim b/runtime/syntax/sicad.vim
--- a/runtime/syntax/sicad.vim
+++ b/runtime/syntax/sicad.vim
@@ -4,28 +4,17 @@
 " Last Change:  2003 May 11
 " URL:		http://lmark.mgx.hu:81/download/vim/sicad.vim
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " use SQL highlighting after 'sql' command
-if version >= 600
-  syn include @SQL syntax/sql.vim
-else
-  syn include @SQL <sfile>:p:h/sql.vim
-endif
+syn include @SQL syntax/sql.vim
 unlet b:current_syntax
 
 " spaces are used in (auto)indents since sicad hates tabulator characters
-if version >= 600
-  setlocal expandtab
-else
-  set expandtab
-endif
+setlocal expandtab
 
 " ignore case
 syn case ignore
@@ -369,44 +358,34 @@ syn keyword sicadStatement zparbn zparf 
 syn keyword sicadStatement zparp zparpn zwinkp zwinkpn
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_sicad_syntax_inits")
-
-  if version < 508
-    let did_sicad_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink sicadLabel PreProc
-  HiLink sicadLabel1 sicadLabel
-  HiLink sicadLabel2 sicadLabel
-  HiLink sicadConditional Conditional
-  HiLink sicadBoolean Boolean
-  HiLink sicadNumber Number
-  HiLink sicadFloat Float
-  HiLink sicadOperator Operator
-  HiLink sicadStatement Statement
-  HiLink sicadParameter sicadStatement
-  HiLink sicadGoto sicadStatement
-  HiLink sicadLineCont sicadStatement
-  HiLink sicadString String
-  HiLink sicadComment Comment
-  HiLink sicadSpecial Special
-  HiLink sicadIdentifier Type
+HiLink sicadLabel PreProc
+HiLink sicadLabel1 sicadLabel
+HiLink sicadLabel2 sicadLabel
+HiLink sicadConditional Conditional
+HiLink sicadBoolean Boolean
+HiLink sicadNumber Number
+HiLink sicadFloat Float
+HiLink sicadOperator Operator
+HiLink sicadStatement Statement
+HiLink sicadParameter sicadStatement
+HiLink sicadGoto sicadStatement
+HiLink sicadLineCont sicadStatement
+HiLink sicadString String
+HiLink sicadComment Comment
+HiLink sicadSpecial Special
+HiLink sicadIdentifier Type
 "  HiLink sicadIdentifier Identifier
-  HiLink sicadError Error
-  HiLink sicadParenError sicadError
-  HiLink sicadApostropheError sicadError
-  HiLink sicadStringError sicadError
-  HiLink sicadCommentError sicadError
+HiLink sicadError Error
+HiLink sicadParenError sicadError
+HiLink sicadApostropheError sicadError
+HiLink sicadStringError sicadError
+HiLink sicadCommentError sicadError
 "  HiLink sqlStatement Special  " modified highlight group in sql.vim
 
-  delcommand HiLink
-
-endif
+delcommand HiLink
 
 let b:current_syntax = "sicad"
 
diff --git a/runtime/syntax/simula.vim b/runtime/syntax/simula.vim
--- a/runtime/syntax/simula.vim
+++ b/runtime/syntax/simula.vim
@@ -4,11 +4,8 @@
 " URL:		http://folk.uio.no/hakonrk/vim/syntax/simula.vim
 " Last Change:	2001 May 15
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -58,42 +55,35 @@ syn match	simulaReal		"-\=\<\d\+\(\.\d\+
 " Real starting with a `.', optional exponent
 syn match	simulaReal		"-\=\.\d\+\(&&\=[+-]\=\d\+\)\=\>"
 
-if version >= 508 || !exists("did_simula_syntax_inits")
-    if version < 508
-	let did_simula_syntax_inits = 1
-	command -nargs=+ HiLink hi link <args>
-    else
-	command -nargs=+ HiLink hi def link <args>
-    endif
+command -nargs=+ HiLink hi def link <args>
 
-    HiLink simulaAssigned		Identifier
-    HiLink simulaBoolean		Boolean
-    HiLink simulaCharacter		Character
-    HiLink simulaCharError		Error
-    HiLink simulaComment		Comment
-    HiLink simulaCompound		Statement
-    HiLink simulaConditional		Conditional
-    HiLink simulaConstant		Constant
-    HiLink simulaFunction		Function
-    HiLink simulaNumber			Number
-    HiLink simulaOperator		Operator
-    HiLink simulaReal			Float
-    HiLink simulaReferenceType		Type
-    HiLink simulaRepeat			Repeat
-    HiLink simulaReserved		Error
-    HiLink simulaSemicolon		Statement
-    HiLink simulaSpecial		Special
-    HiLink simulaSpecialChar		SpecialChar
-    HiLink simulaSpecialCharErr		Error
-    HiLink simulaStatement		Statement
-    HiLink simulaStorageClass		StorageClass
-    HiLink simulaString			String
-    HiLink simulaStructure		Structure
-    HiLink simulaTodo			Todo
-    HiLink simulaType			Type
+HiLink simulaAssigned		Identifier
+HiLink simulaBoolean		Boolean
+HiLink simulaCharacter		Character
+HiLink simulaCharError		Error
+HiLink simulaComment		Comment
+HiLink simulaCompound		Statement
+HiLink simulaConditional		Conditional
+HiLink simulaConstant		Constant
+HiLink simulaFunction		Function
+HiLink simulaNumber			Number
+HiLink simulaOperator		Operator
+HiLink simulaReal			Float
+HiLink simulaReferenceType		Type
+HiLink simulaRepeat			Repeat
+HiLink simulaReserved		Error
+HiLink simulaSemicolon		Statement
+HiLink simulaSpecial		Special
+HiLink simulaSpecialChar		SpecialChar
+HiLink simulaSpecialCharErr		Error
+HiLink simulaStatement		Statement
+HiLink simulaStorageClass		StorageClass
+HiLink simulaString			String
+HiLink simulaStructure		Structure
+HiLink simulaTodo			Todo
+HiLink simulaType			Type
 
-    delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "simula"
 " vim: sts=4 sw=4 ts=8
diff --git a/runtime/syntax/sinda.vim b/runtime/syntax/sinda.vim
--- a/runtime/syntax/sinda.vim
+++ b/runtime/syntax/sinda.vim
@@ -8,11 +8,8 @@
 
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -32,11 +29,7 @@ syn case ignore
 let fortran_free_source=1
 
 " Load FORTRAN syntax file
-if version < 600
-  source <sfile>:p:h/fortran.vim
-else
-  runtime! syntax/fortran.vim
-endif
+runtime! syntax/fortran.vim
 unlet b:current_syntax
 
 
@@ -106,39 +99,31 @@ endif
 
 
 " Define the default highlighting
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_sinda_syntax_inits")
-  if version < 508
-    let did_sinda_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink sindaMacro		Macro
-  HiLink sindaOptions		Special
-  HiLink sindaRoutine		Type
-  HiLink sindaControl		Special
-  HiLink sindaSubRoutine	Function
-  HiLink sindaIdentifier	Identifier
+HiLink sindaMacro		Macro
+HiLink sindaOptions		Special
+HiLink sindaRoutine		Type
+HiLink sindaControl		Special
+HiLink sindaSubRoutine	Function
+HiLink sindaIdentifier	Identifier
+
+HiLink sindaFortran		PreProc
+HiLink sindaMotran		PreProc
 
-  HiLink sindaFortran		PreProc
-  HiLink sindaMotran		PreProc
+HiLink sindaComment		Comment
+HiLink sindaHeader		Typedef
+HiLink sindaIncludeFile	Type
+HiLink sindaInteger		Number
+HiLink sindaFloat		Float
+HiLink sindaScientific	Float
 
-  HiLink sindaComment		Comment
-  HiLink sindaHeader		Typedef
-  HiLink sindaIncludeFile	Type
-  HiLink sindaInteger		Number
-  HiLink sindaFloat		Float
-  HiLink sindaScientific	Float
+HiLink sindaEndData		Macro
 
-  HiLink sindaEndData		Macro
+HiLink sindaTodo		Todo
 
-  HiLink sindaTodo		Todo
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "sinda"
diff --git a/runtime/syntax/sindacmp.vim b/runtime/syntax/sindacmp.vim
--- a/runtime/syntax/sindacmp.vim
+++ b/runtime/syntax/sindacmp.vim
@@ -8,11 +8,8 @@
 
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -45,28 +42,20 @@ syn match  sindacmpFloat       "-\=\<[0-
 
 
 " Define the default highlighting
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_sindacmp_syntax_inits")
-  if version < 508
-    let did_sindacmp_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink sindacmpTitle		     Type
+HiLink sindacmpUnit		     PreProc
 
-  HiLink sindacmpTitle		     Type
-  HiLink sindacmpUnit		     PreProc
+HiLink sindacmpLabel		     Statement
 
-  HiLink sindacmpLabel		     Statement
+HiLink sindacmpHeader		     sindaHeader
 
-  HiLink sindacmpHeader		     sindaHeader
+HiLink sindacmpInteger	     Number
+HiLink sindacmpFloat		     Special
 
-  HiLink sindacmpInteger	     Number
-  HiLink sindacmpFloat		     Special
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "sindacmp"
diff --git a/runtime/syntax/sindaout.vim b/runtime/syntax/sindaout.vim
--- a/runtime/syntax/sindaout.vim
+++ b/runtime/syntax/sindaout.vim
@@ -8,11 +8,8 @@
 
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -24,11 +21,7 @@ syn case match
 
 
 " Load SINDA syntax file
-if version < 600
-  source <sfile>:p:h/sinda.vim
-else
-  runtime! syntax/sinda.vim
-endif
+runtime! syntax/sinda.vim
 unlet b:current_syntax
 
 
@@ -66,33 +59,25 @@ syn match sindaoutError		"<<< Error >>>"
 
 
 " Define the default highlighting
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_sindaout_syntax_inits")
-  if version < 508
-    let did_sindaout_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  hi sindaHeaderDelim  ctermfg=Black ctermbg=Green	       guifg=Black guibg=Green
+hi sindaHeaderDelim  ctermfg=Black ctermbg=Green	       guifg=Black guibg=Green
 
-  HiLink sindaoutPos		     Statement
-  HiLink sindaoutNeg		     PreProc
-  HiLink sindaoutTitle		     Type
-  HiLink sindaoutFile		     sindaIncludeFile
-  HiLink sindaoutInteger	     sindaInteger
+HiLink sindaoutPos		     Statement
+HiLink sindaoutNeg		     PreProc
+HiLink sindaoutTitle		     Type
+HiLink sindaoutFile		     sindaIncludeFile
+HiLink sindaoutInteger	     sindaInteger
 
-  HiLink sindaoutSectionDelim	      Delimiter
-  HiLink sindaoutSectionTitle	     Exception
-  HiLink sindaoutHeaderDelim	     SpecialComment
-  HiLink sindaoutLabel		     Identifier
+HiLink sindaoutSectionDelim	      Delimiter
+HiLink sindaoutSectionTitle	     Exception
+HiLink sindaoutHeaderDelim	     SpecialComment
+HiLink sindaoutLabel		     Identifier
 
-  HiLink sindaoutError		     Error
+HiLink sindaoutError		     Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "sindaout"
diff --git a/runtime/syntax/sisu.vim b/runtime/syntax/sisu.vim
--- a/runtime/syntax/sisu.vim
+++ b/runtime/syntax/sisu.vim
@@ -6,11 +6,9 @@
 "      <http://git.sisudoc.org/gitweb/?p=code/sisu.git;a=blob_plain;f=data/sisu/conf/editor-syntax-etc/vim/syntax/sisu.vim;hb=HEAD>
 "(originally looked at Ruby Vim by Mirko Nasato)
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
-else
 endif
 let s:cpo_save = &cpo
 set cpo&vim
diff --git a/runtime/syntax/skill.vim b/runtime/syntax/skill.vim
--- a/runtime/syntax/skill.vim
+++ b/runtime/syntax/skill.vim
@@ -9,11 +9,8 @@
 "				database. This file also defines syntax highlighting for
 "				certain Design Framework II interface functions.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -525,37 +522,29 @@ syn match skillCommentError			"\*/"
 syn sync ccomment skillComment minlines=10
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_skill_syntax_inits")
-  if version < 508
-    let did_skill_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink skillcdfFunctions	Function
-	HiLink skillgeFunctions		Function
-	HiLink skillhiFunctions		Function
-	HiLink skillleFunctions		Function
-	HiLink skilldbefFunctions	Function
-	HiLink skillddFunctions		Function
-	HiLink skillpcFunctions		Function
-	HiLink skilltechFunctions	Function
-	HiLink skillConstants		Constant
-	HiLink skillFunction		Function
-	HiLink skillKeywords		Statement
-	HiLink skillConditional		Conditional
-	HiLink skillRepeat			Repeat
-	HiLink skillString			String
-	HiLink skillTodo			Todo
-	HiLink skillNote			Todo
-	HiLink skillComment			Comment
-	HiLink skillCommentError	Error
+HiLink skillcdfFunctions	Function
+HiLink skillgeFunctions		Function
+HiLink skillhiFunctions		Function
+HiLink skillleFunctions		Function
+HiLink skilldbefFunctions	Function
+HiLink skillddFunctions		Function
+HiLink skillpcFunctions		Function
+HiLink skilltechFunctions	Function
+HiLink skillConstants		Constant
+HiLink skillFunction		Function
+HiLink skillKeywords		Statement
+HiLink skillConditional		Conditional
+HiLink skillRepeat			Repeat
+HiLink skillString			String
+HiLink skillTodo			Todo
+HiLink skillNote			Todo
+HiLink skillComment			Comment
+HiLink skillCommentError	Error
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "skill"
 
diff --git a/runtime/syntax/sl.vim b/runtime/syntax/sl.vim
--- a/runtime/syntax/sl.vim
+++ b/runtime/syntax/sl.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Dan Piponi <dan@tanelorn.demon.co.uk>
 " Last Change:	2001 May 09
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -75,45 +72,37 @@ syn keyword slVariable dtime dPdtime
 syn sync ccomment slComment minlines=10
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_sl_syntax_inits")
-  if version < 508
-    let did_sl_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink slLabel	Label
-  HiLink slUserLabel	Label
-  HiLink slConditional	Conditional
-  HiLink slRepeat	Repeat
-  HiLink slCharacter	Character
-  HiLink slSpecialCharacter slSpecial
-  HiLink slNumber	Number
-  HiLink slFloat	Float
-  HiLink slParenError	slError
-  HiLink slInParen	slError
-  HiLink slCommentError	slError
-  HiLink slOperator	Operator
-  HiLink slStorageClass	StorageClass
-  HiLink slError	Error
-  HiLink slStatement	Statement
-  HiLink slType		Type
-  HiLink slCommentError	slError
-  HiLink slCommentString slString
-  HiLink slComment2String slString
-  HiLink slCommentSkip	slComment
-  HiLink slString	String
-  HiLink slComment	Comment
-  HiLink slSpecial	SpecialChar
-  HiLink slTodo	Todo
-  HiLink slVariable	Identifier
-  "HiLink slIdentifier	Identifier
+HiLink slLabel	Label
+HiLink slUserLabel	Label
+HiLink slConditional	Conditional
+HiLink slRepeat	Repeat
+HiLink slCharacter	Character
+HiLink slSpecialCharacter slSpecial
+HiLink slNumber	Number
+HiLink slFloat	Float
+HiLink slParenError	slError
+HiLink slInParen	slError
+HiLink slCommentError	slError
+HiLink slOperator	Operator
+HiLink slStorageClass	StorageClass
+HiLink slError	Error
+HiLink slStatement	Statement
+HiLink slType		Type
+HiLink slCommentError	slError
+HiLink slCommentString slString
+HiLink slComment2String slString
+HiLink slCommentSkip	slComment
+HiLink slString	String
+HiLink slComment	Comment
+HiLink slSpecial	SpecialChar
+HiLink slTodo	Todo
+HiLink slVariable	Identifier
+"HiLink slIdentifier	Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "sl"
 
diff --git a/runtime/syntax/slang.vim b/runtime/syntax/slang.vim
--- a/runtime/syntax/slang.vim
+++ b/runtime/syntax/slang.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Jan Hlavacek <lahvak@math.ohio-state.edu>
 " Last Change:	980216
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -55,47 +52,39 @@ syn keyword slangOperator	sizeof
 syn region slangPreCondit start="^\s*#\s*\(ifdef\>\|ifndef\>\|iftrue\>\|ifnfalse\>\|iffalse\>\|ifntrue\>\|if\$\|ifn\$\|\|elif\>\|else\>\|endif\>\)" skip="\\$" end="$" contains=cComment,slangString,slangCharacter,slangNumber
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_slang_syntax_inits")
-  if version < 508
-    let did_slang_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink slangDefinition	Type
-  HiLink slangBlock		slangDefinition
-  HiLink slangLabel		Label
-  HiLink slangConditional	Conditional
-  HiLink slangRepeat		Repeat
-  HiLink slangCharacter	Character
-  HiLink slangFloat		Float
-  HiLink slangImaginary	Float
-  HiLink slangDecimal		slangNumber
-  HiLink slangOctal		slangNumber
-  HiLink slangHex		slangNumber
-  HiLink slangNumber		Number
-  HiLink slangParenError	Error
-  HiLink slangOctalError	Error
-  HiLink slangOperator		Operator
-  HiLink slangStructure	Structure
-  HiLink slangInclude		Include
-  HiLink slangPreCondit	PreCondit
-  HiLink slangError		Error
-  HiLink slangStatement	Statement
-  HiLink slangType		Type
-  HiLink slangString		String
-  HiLink slangConstant		Constant
-  HiLink slangRangeArray	slangConstant
-  HiLink slangComment		Comment
-  HiLink slangSpecial		SpecialChar
-  HiLink slangTodo		Todo
-  HiLink slangDelim		Delimiter
+HiLink slangDefinition	Type
+HiLink slangBlock		slangDefinition
+HiLink slangLabel		Label
+HiLink slangConditional	Conditional
+HiLink slangRepeat		Repeat
+HiLink slangCharacter	Character
+HiLink slangFloat		Float
+HiLink slangImaginary	Float
+HiLink slangDecimal		slangNumber
+HiLink slangOctal		slangNumber
+HiLink slangHex		slangNumber
+HiLink slangNumber		Number
+HiLink slangParenError	Error
+HiLink slangOctalError	Error
+HiLink slangOperator		Operator
+HiLink slangStructure	Structure
+HiLink slangInclude		Include
+HiLink slangPreCondit	PreCondit
+HiLink slangError		Error
+HiLink slangStatement	Statement
+HiLink slangType		Type
+HiLink slangString		String
+HiLink slangConstant		Constant
+HiLink slangRangeArray	slangConstant
+HiLink slangComment		Comment
+HiLink slangSpecial		SpecialChar
+HiLink slangTodo		Todo
+HiLink slangDelim		Delimiter
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "slang"
 
diff --git a/runtime/syntax/slice.vim b/runtime/syntax/slice.vim
--- a/runtime/syntax/slice.vim
+++ b/runtime/syntax/slice.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Morel Bodin <slice06@nym.hush.com>
 " Last Change:	2005 Dec 03
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -58,33 +55,25 @@ syn match sliceComment	"//.*"
 syn sync ccomment sliceComment
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_slice_syn_inits")
-  if version < 508
-    let did_slice_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink sliceComment	Comment
-  HiLink sliceConstruct	Keyword
-  HiLink sliceType	Type
-  HiLink sliceString	String
-  HiLink sliceIncluded	String
-  HiLink sliceQualifier	Keyword
-  HiLink sliceInclude	Include
-  HiLink sliceGuard	PreProc
-  HiLink sliceBoolean	Boolean
-  HiLink sliceFloat	Number
-  HiLink sliceNumber	Number
-  HiLink sliceOctal	Number
-  HiLink sliceOctalZero	Special
-  HiLink sliceNumberError Special
+HiLink sliceComment	Comment
+HiLink sliceConstruct	Keyword
+HiLink sliceType	Type
+HiLink sliceString	String
+HiLink sliceIncluded	String
+HiLink sliceQualifier	Keyword
+HiLink sliceInclude	Include
+HiLink sliceGuard	PreProc
+HiLink sliceBoolean	Boolean
+HiLink sliceFloat	Number
+HiLink sliceNumber	Number
+HiLink sliceOctal	Number
+HiLink sliceOctalZero	Special
+HiLink sliceNumberError Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "slice"
 
diff --git a/runtime/syntax/slrnrc.vim b/runtime/syntax/slrnrc.vim
--- a/runtime/syntax/slrnrc.vim
+++ b/runtime/syntax/slrnrc.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Preben 'Peppe' Guldberg <peppe-vim@wielders.org>
 " Last Change:	23 April 2006
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -150,44 +147,36 @@ syn match   slrnrcSetkey	"^\s*setkey\>" 
 syn match   slrnrcUnsetkey	'^\s*unsetkey\s\+\("\)\=\(article\|group\|readline\)\>\1' skipwhite nextgroup=slrnrcKey contains=slrnrcSetkeyObj\(Str\)\=
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_slrnrc_syntax_inits")
-  if version < 508
-    let did_slrnrc_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink slrnrcTodo		Todo
-  HiLink slrnrcSpaceError	Error
-  HiLink slrnrcNumber		Number
-  HiLink slrnrcSpecKey		SpecialChar
-  HiLink slrnrcKey		String
-  HiLink slrnrcSpecChar		SpecialChar
-  HiLink slrnrcString		String
-  HiLink slrnSlangPreCondit	Special
-  HiLink slrnrcComment		Comment
-  HiLink slrnrcVarInt		Identifier
-  HiLink slrnrcVarStr		Identifier
-  HiLink slrnrcCmd		slrnrcSet
-  HiLink slrnrcSet		Operator
-  HiLink slrnrcColor		Keyword
-  HiLink slrnrcColorObj		Identifier
-  HiLink slrnrcColorVal		String
-  HiLink slrnrcMono		Keyword
-  HiLink slrnrcMonoObj		Identifier
-  HiLink slrnrcMonoVal		String
-  HiLink slrnrcFunArt		Macro
-  HiLink slrnrcFunGroup		Macro
-  HiLink slrnrcFunRead		Macro
-  HiLink slrnrcSetkeyObj	Identifier
-  HiLink slrnrcSetkey		Keyword
-  HiLink slrnrcUnsetkey		slrnrcSetkey
+HiLink slrnrcTodo		Todo
+HiLink slrnrcSpaceError	Error
+HiLink slrnrcNumber		Number
+HiLink slrnrcSpecKey		SpecialChar
+HiLink slrnrcKey		String
+HiLink slrnrcSpecChar		SpecialChar
+HiLink slrnrcString		String
+HiLink slrnSlangPreCondit	Special
+HiLink slrnrcComment		Comment
+HiLink slrnrcVarInt		Identifier
+HiLink slrnrcVarStr		Identifier
+HiLink slrnrcCmd		slrnrcSet
+HiLink slrnrcSet		Operator
+HiLink slrnrcColor		Keyword
+HiLink slrnrcColorObj		Identifier
+HiLink slrnrcColorVal		String
+HiLink slrnrcMono		Keyword
+HiLink slrnrcMonoObj		Identifier
+HiLink slrnrcMonoVal		String
+HiLink slrnrcFunArt		Macro
+HiLink slrnrcFunGroup		Macro
+HiLink slrnrcFunRead		Macro
+HiLink slrnrcSetkeyObj	Identifier
+HiLink slrnrcSetkey		Keyword
+HiLink slrnrcUnsetkey		slrnrcSetkey
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "slrnrc"
 
diff --git a/runtime/syntax/slrnsc.vim b/runtime/syntax/slrnsc.vim
--- a/runtime/syntax/slrnsc.vim
+++ b/runtime/syntax/slrnsc.vim
@@ -3,20 +3,13 @@
 " Maintainer:	Preben 'Peppe' Guldberg <peppe@wielders.org>
 " Last Change:	8 Oct 2004
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " characters in newsgroup names
-if version < 600
-  set isk=@,48-57,.,-,_,+
-else
-  setlocal isk=@,48-57,.,-,_,+
-endif
+setlocal isk=@,48-57,.,-,_,+
 
 syn match slrnscComment		"%.*$"
 syn match slrnscSectionCom	".].*"lc=2
@@ -51,34 +44,26 @@ syn match slrnscScoreIdent	contained "%.
 syn match slrnScoreLine		"^\s*Score::\=\s\+=\=[-+]\=\d\+\s*\(%.*\)\=$" skipempty nextgroup=slrnscScoreItem contains=slrnscScore,slrnscDelim,slrnscOper,slrnscNumber,slrnscScoreIdent
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_slrnsc_syntax_inits")
-  if version < 508
-    let did_slrnsc_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink slrnscComment		Comment
-  HiLink slrnscSectionCom	slrnscComment
-  HiLink slrnscGroup		String
-  HiLink slrnscNumber		Number
-  HiLink slrnscDate		Special
-  HiLink slrnscDelim		Delimiter
-  HiLink slrnscComma		SpecialChar
-  HiLink slrnscOper		SpecialChar
-  HiLink slrnscEsc		String
-  HiLink slrnscSectionStd	Type
-  HiLink slrnscSectionNot	Delimiter
-  HiLink slrnscItem		Statement
-  HiLink slrnscScore		Keyword
-  HiLink slrnscScoreIdent	Identifier
-  HiLink slrnscInclude		Keyword
+HiLink slrnscComment		Comment
+HiLink slrnscSectionCom	slrnscComment
+HiLink slrnscGroup		String
+HiLink slrnscNumber		Number
+HiLink slrnscDate		Special
+HiLink slrnscDelim		Delimiter
+HiLink slrnscComma		SpecialChar
+HiLink slrnscOper		SpecialChar
+HiLink slrnscEsc		String
+HiLink slrnscSectionStd	Type
+HiLink slrnscSectionNot	Delimiter
+HiLink slrnscItem		Statement
+HiLink slrnscScore		Keyword
+HiLink slrnscScoreIdent	Identifier
+HiLink slrnscInclude		Keyword
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "slrnsc"
 
diff --git a/runtime/syntax/sm.vim b/runtime/syntax/sm.vim
--- a/runtime/syntax/sm.vim
+++ b/runtime/syntax/sm.vim
@@ -56,36 +56,28 @@ syn match smClauseCont	contained	"^\t"
 syn region smClause	matchgroup=Delimiter start="\$?." matchgroup=Delimiter end="\$\." contains=smElse,smClause,smVar,smClauseCont
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_smil_syntax_inits")
-  if version < 508
-    let did_smil_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink smClause	Special
-  HiLink smClauseError	Error
-  HiLink smComment	Comment
-  HiLink smDefine	Statement
-  HiLink smElse		Delimiter
-  HiLink smHeader	Statement
-  HiLink smHeaderSep	String
-  HiLink smMesg		Special
-  HiLink smPrecedence	Number
-  HiLink smRewrite	Statement
-  HiLink smRewriteComment	Comment
-  HiLink smRewriteLhsToken	String
-  HiLink smRewriteLhsUser	Statement
-  HiLink smRewriteRhsToken	String
-  HiLink smRuleset	Preproc
-  HiLink smTrusted	Special
-  HiLink smVar		String
+HiLink smClause	Special
+HiLink smClauseError	Error
+HiLink smComment	Comment
+HiLink smDefine	Statement
+HiLink smElse		Delimiter
+HiLink smHeader	Statement
+HiLink smHeaderSep	String
+HiLink smMesg		Special
+HiLink smPrecedence	Number
+HiLink smRewrite	Statement
+HiLink smRewriteComment	Comment
+HiLink smRewriteLhsToken	String
+HiLink smRewriteLhsUser	Statement
+HiLink smRewriteRhsToken	String
+HiLink smRuleset	Preproc
+HiLink smTrusted	Special
+HiLink smVar		String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "sm"
 
diff --git a/runtime/syntax/smarty.vim b/runtime/syntax/smarty.vim
--- a/runtime/syntax/smarty.vim
+++ b/runtime/syntax/smarty.vim
@@ -8,11 +8,10 @@
 " For version 5.x: Clear all syntax items
 " For version 6.x: Quit when a syntax file was already loaded
 if !exists("main_syntax")
-  if version < 600
-    syntax clear
-  elseif exists("b:current_syntax")
-  finish
-endif
+  " quit when a syntax file was already loaded
+  if exists("b:current_syntax")
+    finish
+  endif
   let main_syntax = 'smarty'
 endif
 
@@ -57,25 +56,18 @@ syn region  htmlString   contained start
   syn region htmlLink start="<a\>\_[^>]*\<href\>" end="</a>"me=e-4 contains=@Spell,htmlTag,htmlEndTag,htmlSpecialChar,htmlPreProc,htmlComment,javaScript,@htmlPreproc,smartyZone
 
 
-if version >= 508 || !exists("did_smarty_syn_inits")
-  if version < 508
-    let did_smarty_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink smartyTagName Identifier
-  HiLink smartyProperty Constant
-  " if you want the text inside the braces to be colored, then
-  " remove the comment in from of the next statement
-  "HiLink smartyZone Include
-  HiLink smartyInFunc Function
-  HiLink smartyBlock Constant
-  HiLink smartyDot SpecialChar
-  HiLink smartyModifier Function
-  delcommand HiLink
-endif
+HiLink smartyTagName Identifier
+HiLink smartyProperty Constant
+" if you want the text inside the braces to be colored, then
+" remove the comment in from of the next statement
+"HiLink smartyZone Include
+HiLink smartyInFunc Function
+HiLink smartyBlock Constant
+HiLink smartyDot SpecialChar
+HiLink smartyModifier Function
+delcommand HiLink
 
 let b:current_syntax = "smarty"
 
diff --git a/runtime/syntax/smcl.vim b/runtime/syntax/smcl.vim
--- a/runtime/syntax/smcl.vim
+++ b/runtime/syntax/smcl.vim
@@ -10,9 +10,8 @@
 "		check for 'b:current_syntax', removed 'did_smcl_syntax_inits'
 " 26apr2006	changed 'stata_smcl' to 'smcl'
 
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
diff --git a/runtime/syntax/smil.vim b/runtime/syntax/smil.vim
--- a/runtime/syntax/smil.vim
+++ b/runtime/syntax/smil.vim
@@ -7,11 +7,8 @@
 " To learn more about SMIL, please refer to http://www.w3.org/AudioVideo/
 " and to http://www.helio.org/products/smil/tutorial/
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -115,38 +112,30 @@ endif
 syn region smilComment		      start=+<!DOCTYPE+ keepend end=+>+
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_smil_syntax_inits")
-  if version < 508
-    let did_smil_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink smilTag			Function
+HiLink smilEndTag			Identifier
+HiLink smilArg			Type
+HiLink smilTagName			smilStatement
+HiLink smilSpecialTagName		Exception
+HiLink smilValue			Value
+HiLink smilSpecialChar		Special
 
-  HiLink smilTag			Function
-  HiLink smilEndTag			Identifier
-  HiLink smilArg			Type
-  HiLink smilTagName			smilStatement
-  HiLink smilSpecialTagName		Exception
-  HiLink smilValue			Value
-  HiLink smilSpecialChar		Special
+HiLink smilSpecial			Special
+HiLink smilSpecialChar		Special
+HiLink smilString			String
+HiLink smilStatement			Statement
+HiLink smilComment			Comment
+HiLink smilCommentPart		Comment
+HiLink smilPreProc			PreProc
+HiLink smilValue			String
+HiLink smilCommentError		smilError
+HiLink smilTagError			smilError
+HiLink smilError			Error
 
-  HiLink smilSpecial			Special
-  HiLink smilSpecialChar		Special
-  HiLink smilString			String
-  HiLink smilStatement			Statement
-  HiLink smilComment			Comment
-  HiLink smilCommentPart		Comment
-  HiLink smilPreProc			PreProc
-  HiLink smilValue			String
-  HiLink smilCommentError		smilError
-  HiLink smilTagError			smilError
-  HiLink smilError			Error
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "smil"
 
diff --git a/runtime/syntax/smith.vim b/runtime/syntax/smith.vim
--- a/runtime/syntax/smith.vim
+++ b/runtime/syntax/smith.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Rafal M. Sulejman <rms@poczta.onet.pl>
 " Last Change:	21.07.2000
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -28,24 +25,16 @@ syn region smithString		start=+"+  skip=
 syn case match
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_smith_syntax_inits")
-  if version < 508
-    let did_smith_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink smithRegister	Identifier
-  HiLink smithKeyword	Keyword
-	HiLink smithComment Comment
-	HiLink smithString String
-  HiLink smithNumber	Number
+HiLink smithRegister	Identifier
+HiLink smithKeyword	Keyword
+HiLink smithComment Comment
+HiLink smithString String
+HiLink smithNumber	Number
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "smith"
 
diff --git a/runtime/syntax/sml.vim b/runtime/syntax/sml.vim
--- a/runtime/syntax/sml.vim
+++ b/runtime/syntax/sml.vim
@@ -8,11 +8,8 @@
 "               2002 Jun 02 - Fixed small typo  (MM)
 "               2001 Nov 20 - Fixed small highlighting bug with modules (MM)
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -168,62 +165,54 @@ syn sync match smlSigSync     grouphere 
 syn sync match smlSigSync     groupthere smlSig     "\<end\>"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_sml_syntax_inits")
-  if version < 508
-    let did_sml_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink smlBraceErr	 Error
+HiLink smlBrackErr	 Error
+HiLink smlParenErr	 Error
 
-  HiLink smlBraceErr	 Error
-  HiLink smlBrackErr	 Error
-  HiLink smlParenErr	 Error
-
-  HiLink smlCommentErr	 Error
+HiLink smlCommentErr	 Error
 
-  HiLink smlEndErr	 Error
-  HiLink smlThenErr	 Error
+HiLink smlEndErr	 Error
+HiLink smlThenErr	 Error
 
-  HiLink smlCharErr	 Error
+HiLink smlCharErr	 Error
 
-  HiLink smlComment	 Comment
+HiLink smlComment	 Comment
 
-  HiLink smlModPath	 Include
-  HiLink smlModule	 Include
-  HiLink smlModParam1	 Include
-  HiLink smlModType	 Include
-  HiLink smlMPRestr3	 Include
-  HiLink smlFullMod	 Include
-  HiLink smlModTypeRestr Include
-  HiLink smlWith	 Include
-  HiLink smlMTDef	 Include
+HiLink smlModPath	 Include
+HiLink smlModule	 Include
+HiLink smlModParam1	 Include
+HiLink smlModType	 Include
+HiLink smlMPRestr3	 Include
+HiLink smlFullMod	 Include
+HiLink smlModTypeRestr Include
+HiLink smlWith	 Include
+HiLink smlMTDef	 Include
 
-  HiLink smlConstructor  Constant
+HiLink smlConstructor  Constant
 
-  HiLink smlModPreRHS	 Keyword
-  HiLink smlMPRestr2	 Keyword
-  HiLink smlKeyword	 Keyword
-  HiLink smlFunDef	 Keyword
-  HiLink smlRefAssign	 Keyword
-  HiLink smlKeyChar	 Keyword
-  HiLink smlAnyVar	 Keyword
-  HiLink smlTopStop	 Keyword
-  HiLink smlOperator	 Keyword
+HiLink smlModPreRHS	 Keyword
+HiLink smlMPRestr2	 Keyword
+HiLink smlKeyword	 Keyword
+HiLink smlFunDef	 Keyword
+HiLink smlRefAssign	 Keyword
+HiLink smlKeyChar	 Keyword
+HiLink smlAnyVar	 Keyword
+HiLink smlTopStop	 Keyword
+HiLink smlOperator	 Keyword
 
-  HiLink smlBoolean	 Boolean
-  HiLink smlCharacter	 Character
-  HiLink smlNumber	 Number
-  HiLink smlReal	 Float
-  HiLink smlString	 String
-  HiLink smlType	 Type
-  HiLink smlTodo	 Todo
-  HiLink smlEncl	 Keyword
+HiLink smlBoolean	 Boolean
+HiLink smlCharacter	 Character
+HiLink smlNumber	 Number
+HiLink smlReal	 Float
+HiLink smlString	 String
+HiLink smlType	 Type
+HiLink smlTodo	 Todo
+HiLink smlEncl	 Keyword
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "sml"
 
diff --git a/runtime/syntax/snnsnet.vim b/runtime/syntax/snnsnet.vim
--- a/runtime/syntax/snnsnet.vim
+++ b/runtime/syntax/snnsnet.vim
@@ -8,9 +8,8 @@
 " SNNS http://www-ra.informatik.uni-tuebingen.de/SNNS/
 " is a simulator for neural networks.
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -54,23 +53,16 @@ syn match	snnsnetNumbers	"\d" contained
 syn match	snnsnetComment	"#.*$" contains=snnsnetTodo
 syn keyword	snnsnetTodo	TODO XXX FIXME contained
 
-if version >= 508 || !exists("did_snnsnet_syn_inits")
-  if version < 508
-    let did_snnsnet_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink snnsnetType		Type
-  HiLink snnsnetComment		Comment
-  HiLink snnsnetNumbers		Number
-  HiLink snnsnetSection		Statement
-  HiLink snnsnetTitle		Label
-  HiLink snnsnetTodo		Todo
+HiLink snnsnetType		Type
+HiLink snnsnetComment		Comment
+HiLink snnsnetNumbers		Number
+HiLink snnsnetSection		Statement
+HiLink snnsnetTitle		Label
+HiLink snnsnetTodo		Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "snnsnet"
 
diff --git a/runtime/syntax/snnspat.vim b/runtime/syntax/snnspat.vim
--- a/runtime/syntax/snnspat.vim
+++ b/runtime/syntax/snnspat.vim
@@ -8,9 +8,8 @@
 " SNNS http://www-ra.informatik.uni-tuebingen.de/SNNS/
 " is a simulator for neural networks.
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -44,26 +43,19 @@ syn match	snnspatNumbers	"\d" contained
 syn match	snnspatComment	"#.*$" contains=snnspatTodo
 syn keyword	snnspatTodo	TODO XXX FIXME contained
 
-if version >= 508 || !exists("did_snnspat_syn_inits")
-  if version < 508
-    let did_snnspat_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink snnspatGen		Statement
-  HiLink snnspatHeader		Error
-  HiLink snnspatNoHeader	Define
-  HiLink snnspatNumbers		Number
-  HiLink snnspatComment		Comment
-  HiLink snnspatError		Error
-  HiLink snnspatTodo		Todo
-  HiLink snnspatAccepted	NONE
-  HiLink snnspatBrac		NONE
+HiLink snnspatGen		Statement
+HiLink snnspatHeader		Error
+HiLink snnspatNoHeader	Define
+HiLink snnspatNumbers		Number
+HiLink snnspatComment		Comment
+HiLink snnspatError		Error
+HiLink snnspatTodo		Todo
+HiLink snnspatAccepted	NONE
+HiLink snnspatBrac		NONE
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "snnspat"
 
diff --git a/runtime/syntax/snnsres.vim b/runtime/syntax/snnsres.vim
--- a/runtime/syntax/snnsres.vim
+++ b/runtime/syntax/snnsres.vim
@@ -8,9 +8,8 @@
 " SNNS http://www-ra.informatik.uni-tuebingen.de/SNNS/
 " is a simulator for neural networks.
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -37,23 +36,16 @@ syn match	snnsresNumbers	"\d" contained
 syn match	snnsresComment	"#.*$" contains=snnsresTodo
 syn keyword	snnsresTodo	TODO XXX FIXME contained
 
-if version >= 508 || !exists("did_snnsres_syn_inits")
-  if version < 508
-    let did_snnsres_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink snnsresGen		Statement
-  HiLink snnsresHeader		Statement
-  HiLink snnsresNoHeader	Define
-  HiLink snnsresNumbers		Number
-  HiLink snnsresComment		Comment
-  HiLink snnsresTodo		Todo
+HiLink snnsresGen		Statement
+HiLink snnsresHeader		Statement
+HiLink snnsresNoHeader	Define
+HiLink snnsresNumbers		Number
+HiLink snnsresComment		Comment
+HiLink snnsresTodo		Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "snnsres"
 
diff --git a/runtime/syntax/snobol4.vim b/runtime/syntax/snobol4.vim
--- a/runtime/syntax/snobol4.vim
+++ b/runtime/syntax/snobol4.vim
@@ -10,11 +10,8 @@
 " - one character labels weren't displayed correctly.
 " - nonexistent Snobol4 keywords displayed as errors.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -79,47 +76,39 @@ syn match       snobol4ErrInBracket disp
 " syn match       snobol4Comment      "^\#\!.*$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_snobol4_syntax_inits")
-  if version < 508
-    let did_snobol4_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink snobol4Constant        Constant
-  HiLink snobol4Label           Label
-  HiLink snobol4Goto            Repeat
-  HiLink snobol4Conditional     Conditional
-  HiLink snobol4Repeat          Repeat
-  HiLink snobol4Number          Number
-  HiLink snobol4Error           Error
-  HiLink snobol4Statement       PreProc
-  HiLink snobol4BogusStatement  snobol4Error
-  HiLink snobol4String          String
-  HiLink snobol4Comment         Comment
-  HiLink snobol4Special         Special
-  HiLink snobol4Todo            Todo
-  HiLink snobol4Keyword         Keyword
-  HiLink snobol4Function        Function
-  HiLink snobol4MathsOperator   Operator
-  HiLink snobol4ParenError      snobol4Error
-  HiLink snobol4ErrInParen      snobol4Error
-  HiLink snobol4ErrInBracket    snobol4Error
-  HiLink snobol4SysVar          Keyword
-  HiLink snobol4BogusSysVar     snobol4Error
-  if exists("snobol4_strict_mode")
-    HiLink snobol4ExtSysVar       WarningMsg
-    HiLink snobol4ExtKeyword      WarningMsg
-  else
-    HiLink snobol4ExtSysVar       snobol4SysVar
-    HiLink snobol4ExtKeyword      snobol4Keyword
-  endif
+HiLink snobol4Constant        Constant
+HiLink snobol4Label           Label
+HiLink snobol4Goto            Repeat
+HiLink snobol4Conditional     Conditional
+HiLink snobol4Repeat          Repeat
+HiLink snobol4Number          Number
+HiLink snobol4Error           Error
+HiLink snobol4Statement       PreProc
+HiLink snobol4BogusStatement  snobol4Error
+HiLink snobol4String          String
+HiLink snobol4Comment         Comment
+HiLink snobol4Special         Special
+HiLink snobol4Todo            Todo
+HiLink snobol4Keyword         Keyword
+HiLink snobol4Function        Function
+HiLink snobol4MathsOperator   Operator
+HiLink snobol4ParenError      snobol4Error
+HiLink snobol4ErrInParen      snobol4Error
+HiLink snobol4ErrInBracket    snobol4Error
+HiLink snobol4SysVar          Keyword
+HiLink snobol4BogusSysVar     snobol4Error
+if exists("snobol4_strict_mode")
+HiLink snobol4ExtSysVar       WarningMsg
+HiLink snobol4ExtKeyword      WarningMsg
+else
+HiLink snobol4ExtSysVar       snobol4SysVar
+HiLink snobol4ExtKeyword      snobol4Keyword
+endif
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "snobol4"
 " vim: ts=8
diff --git a/runtime/syntax/spec.vim b/runtime/syntax/spec.vim
--- a/runtime/syntax/spec.vim
+++ b/runtime/syntax/spec.vim
@@ -5,11 +5,8 @@
 " Former Maintainer:  Donovan Rebbechi elflord@panix.com (until March 2014)
 " Last Change: Sat Apr 9 15:30 2016 Filip Szymański
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -159,77 +156,69 @@ syn sync match shCaseEsacSync grouphere 
 syn sync match shCaseEsacSync groupthere shCaseEsac "\<esac\>"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_spec_syntax_inits")
-  if version < 508
-    let did_spec_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+"main types color definitions
+HiLink specSection			Structure
+HiLink specSectionMacro		Macro
+HiLink specWWWlink			PreProc
+HiLink specOpts			Operator
 
-  "main types color definitions
-  HiLink specSection			Structure
-  HiLink specSectionMacro		Macro
-  HiLink specWWWlink			PreProc
-  HiLink specOpts			Operator
+"yes, it's ugly, but white is sooo cool
+if &background == "dark"
+hi def specGlobalMacro		ctermfg=white
+else
+HiLink specGlobalMacro		Identifier
+endif
 
-  "yes, it's ugly, but white is sooo cool
-  if &background == "dark"
-    hi def specGlobalMacro		ctermfg=white
-  else
-    HiLink specGlobalMacro		Identifier
-  endif
-
-  "sh colors
-  HiLink shComment			Comment
-  HiLink shIf				Statement
-  HiLink shOperator			Special
-  HiLink shQuote1			String
-  HiLink shQuote2			String
-  HiLink shQuoteDelim			Statement
+"sh colors
+HiLink shComment			Comment
+HiLink shIf				Statement
+HiLink shOperator			Special
+HiLink shQuote1			String
+HiLink shQuote2			String
+HiLink shQuoteDelim			Statement
 
-  "spec colors
-  HiLink specBlock			Function
-  HiLink specColon			Special
-  HiLink specCommand			Statement
-  HiLink specCommandOpts		specOpts
-  HiLink specCommandSpecial		Special
-  HiLink specComment			Comment
-  HiLink specConfigure			specCommand
-  HiLink specDate			String
-  HiLink specDescriptionOpts		specOpts
-  HiLink specEmail			specWWWlink
-  HiLink specError			Error
-  HiLink specFilesDirective		specSectionMacro
-  HiLink specFilesOpts			specOpts
-  HiLink specLicense			String
-  HiLink specMacroNameLocal		specGlobalMacro
-  HiLink specMacroNameOther		specGlobalMacro
-  HiLink specManpageFile		NONE
-  HiLink specMonth			specDate
-  HiLink specNoNumberHilite		NONE
-  HiLink specNumber			Number
-  HiLink specPackageOpts		specOpts
-  HiLink specPercent			Special
-  HiLink specSpecialChar		Special
-  HiLink specSpecialVariables		specGlobalMacro
-  HiLink specSpecialVariablesNames	specGlobalMacro
-  HiLink specTarCommand			specCommand
-  HiLink specURL			specWWWlink
-  HiLink specURLMacro			specWWWlink
-  HiLink specVariables			Identifier
-  HiLink specWeekday			specDate
-  HiLink specListedFilesBin		Statement
-  HiLink specListedFilesDoc		Statement
-  HiLink specListedFilesEtc		Statement
-  HiLink specListedFilesLib		Statement
-  HiLink specListedFilesPrefix		Statement
-  HiLink specListedFilesShare		Statement
+"spec colors
+HiLink specBlock			Function
+HiLink specColon			Special
+HiLink specCommand			Statement
+HiLink specCommandOpts		specOpts
+HiLink specCommandSpecial		Special
+HiLink specComment			Comment
+HiLink specConfigure			specCommand
+HiLink specDate			String
+HiLink specDescriptionOpts		specOpts
+HiLink specEmail			specWWWlink
+HiLink specError			Error
+HiLink specFilesDirective		specSectionMacro
+HiLink specFilesOpts			specOpts
+HiLink specLicense			String
+HiLink specMacroNameLocal		specGlobalMacro
+HiLink specMacroNameOther		specGlobalMacro
+HiLink specManpageFile		NONE
+HiLink specMonth			specDate
+HiLink specNoNumberHilite		NONE
+HiLink specNumber			Number
+HiLink specPackageOpts		specOpts
+HiLink specPercent			Special
+HiLink specSpecialChar		Special
+HiLink specSpecialVariables		specGlobalMacro
+HiLink specSpecialVariablesNames	specGlobalMacro
+HiLink specTarCommand			specCommand
+HiLink specURL			specWWWlink
+HiLink specURLMacro			specWWWlink
+HiLink specVariables			Identifier
+HiLink specWeekday			specDate
+HiLink specListedFilesBin		Statement
+HiLink specListedFilesDoc		Statement
+HiLink specListedFilesEtc		Statement
+HiLink specListedFilesLib		Statement
+HiLink specListedFilesPrefix		Statement
+HiLink specListedFilesShare		Statement
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "spec"
 
diff --git a/runtime/syntax/specman.vim b/runtime/syntax/specman.vim
--- a/runtime/syntax/specman.vim
+++ b/runtime/syntax/specman.vim
@@ -10,11 +10,8 @@
 "---------------------------------------------------------
 
 " Remove any old syntax stuff hanging around
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -137,46 +134,38 @@ syn region  specmanString start=+"+  end
 syn sync lines=50
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_specman_syn_inits")
-  if version < 508
-    let did_specman_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  " The default methods for highlighting.  Can be overridden later
-	HiLink	specmanConditional	Conditional
-	HiLink	specmanConstraint	Conditional
-	HiLink	specmanRepeat		Repeat
-	HiLink	specmanString		String
-	HiLink	specmanComment		Comment
-	HiLink	specmanConstant		Macro
-	HiLink	specmanNumber		Number
-	HiLink	specmanCompare		Operator
-	HiLink	specmanOperator		Operator
-	HiLink	specmanLogical		Operator
-	HiLink	specmanStatement	Statement
-	HiLink	specmanHDL		SpecialChar
-	HiLink	specmanMethod		Function
-	HiLink	specmanInclude		Include
-	HiLink	specmanStructure	Structure
-	HiLink	specmanBoolean		Boolean
-	HiLink	specmanFSM		Label
-	HiLink	specmanSpecial		Special
-	HiLink	specmanType		Type
-	HiLink	specmanTemporal		Type
-	HiLink	specmanFile		Include
-	HiLink	specmanPreCondit	Include
-	HiLink	specmanDefine		Typedef
-	HiLink	specmanLabel		Label
-	HiLink	specmanPacking		keyword
-	HiLink	specmanTodo		Todo
-	HiLink	specmanParenError	Error
-	HiLink	specmanErrInParen	Error
-	HiLink	specmanErrInBracket	Error
-	delcommand	HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+" The default methods for highlighting.  Can be overridden later
+HiLink	specmanConditional	Conditional
+HiLink	specmanConstraint	Conditional
+HiLink	specmanRepeat		Repeat
+HiLink	specmanString		String
+HiLink	specmanComment		Comment
+HiLink	specmanConstant		Macro
+HiLink	specmanNumber		Number
+HiLink	specmanCompare		Operator
+HiLink	specmanOperator		Operator
+HiLink	specmanLogical		Operator
+HiLink	specmanStatement	Statement
+HiLink	specmanHDL		SpecialChar
+HiLink	specmanMethod		Function
+HiLink	specmanInclude		Include
+HiLink	specmanStructure	Structure
+HiLink	specmanBoolean		Boolean
+HiLink	specmanFSM		Label
+HiLink	specmanSpecial		Special
+HiLink	specmanType		Type
+HiLink	specmanTemporal		Type
+HiLink	specmanFile		Include
+HiLink	specmanPreCondit	Include
+HiLink	specmanDefine		Typedef
+HiLink	specmanLabel		Label
+HiLink	specmanPacking		keyword
+HiLink	specmanTodo		Todo
+HiLink	specmanParenError	Error
+HiLink	specmanErrInParen	Error
+HiLink	specmanErrInBracket	Error
+delcommand	HiLink
 
 let b:current_syntax = "specman"
diff --git a/runtime/syntax/spice.vim b/runtime/syntax/spice.vim
--- a/runtime/syntax/spice.vim
+++ b/runtime/syntax/spice.vim
@@ -7,11 +7,8 @@
 " This is based on sh.vim by Lennart Schultz
 " but greatly simplified
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -53,28 +50,20 @@ syn match spiceParenError ")"
 syn sync minlines=50
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_spice_syntax_inits")
-  if version < 508
-    let did_spice_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink spiceTodo		Todo
-  HiLink spiceWrapLineOperator	spiceOperator
-  HiLink spiceSinglequote	spiceExpr
-  HiLink spiceExpr		Function
-  HiLink spiceParenError	Error
-  HiLink spiceStatement		Statement
-  HiLink spiceNumber		Number
-  HiLink spiceComment		Comment
-  HiLink spiceOperator		Operator
+HiLink spiceTodo		Todo
+HiLink spiceWrapLineOperator	spiceOperator
+HiLink spiceSinglequote	spiceExpr
+HiLink spiceExpr		Function
+HiLink spiceParenError	Error
+HiLink spiceStatement		Statement
+HiLink spiceNumber		Number
+HiLink spiceComment		Comment
+HiLink spiceOperator		Operator
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "spice"
 
diff --git a/runtime/syntax/splint.vim b/runtime/syntax/splint.vim
--- a/runtime/syntax/splint.vim
+++ b/runtime/syntax/splint.vim
@@ -15,20 +15,13 @@
 "		in your vimrc file or filetype.vim
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " Read the C syntax to start with
-if version < 600
-  so <sfile>:p:h/c.vim
-else
-  runtime! syntax/c.vim
-endif
+runtime! syntax/c.vim
 
 
 " FIXME: uses and changes several clusters defined in c.vim
@@ -199,61 +192,53 @@ syn cluster	cPreProcGroup	add=@splintAll
 syn cluster	cMultiGroup	add=@splintAllStuff
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_splint_syntax_inits")
-  if version < 508
-    let did_splint_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink splintShortAnn		splintAnnotation
-  HiLink splintAnnotation	Comment
-  HiLink splintAnnError		splintError
-  HiLink splintAnnError2	splintError
-  HiLink splintFlag		SpecialComment
-  HiLink splintGlobalFlag	splintError
-  HiLink splintSpecialAnnot	splintAnnKey
-  HiLink splintStateAnnot	splintAnnKey
-  HiLink splintSpecTag		splintAnnKey
-  HiLink splintModifies		splintAnnKey
-  HiLink splintRequires		splintAnnKey
-  HiLink splintGlobals		splintAnnKey
-  HiLink splintGlobitem		Constant
-  HiLink splintGlobannot	splintAnnKey
-  HiLink splintWarning		splintAnnKey
-  HiLink splintModitem		Constant
-  HiLink splintIter		splintAnnKey
-  HiLink splintConst		splintAnnKey
-  HiLink splintAlt		splintAnnKey
-  HiLink splintType		splintAnnKey
-  HiLink splintGlobalType	splintAnnKey
-  HiLink splintMemMgm		splintAnnKey
-  HiLink splintAlias		splintAnnKey
-  HiLink splintExposure		splintAnnKey
-  HiLink splintDefState		splintAnnKey
-  HiLink splintGlobState	splintAnnKey
-  HiLink splintNullState	splintAnnKey
-  HiLink splintNullPred		splintAnnKey
-  HiLink splintExit		splintAnnKey
-  HiLink splintExec		splintAnnKey
-  HiLink splintSef		splintAnnKey
-  HiLink splintDecl		splintAnnKey
-  HiLink splintCase		splintAnnKey
-  HiLink splintBreak		splintAnnKey
-  HiLink splintUnreach		splintAnnKey
-  HiLink splintSpecFunc		splintAnnKey
-  HiLink splintErrSupp		splintAnnKey
-  HiLink splintTypeAcc		splintAnnKey
-  HiLink splintMacro		splintAnnKey
-  HiLink splintSpecType		splintAnnKey
-  HiLink splintAnnKey		Type
-  HiLink splintError		Error
+HiLink splintShortAnn		splintAnnotation
+HiLink splintAnnotation	Comment
+HiLink splintAnnError		splintError
+HiLink splintAnnError2	splintError
+HiLink splintFlag		SpecialComment
+HiLink splintGlobalFlag	splintError
+HiLink splintSpecialAnnot	splintAnnKey
+HiLink splintStateAnnot	splintAnnKey
+HiLink splintSpecTag		splintAnnKey
+HiLink splintModifies		splintAnnKey
+HiLink splintRequires		splintAnnKey
+HiLink splintGlobals		splintAnnKey
+HiLink splintGlobitem		Constant
+HiLink splintGlobannot	splintAnnKey
+HiLink splintWarning		splintAnnKey
+HiLink splintModitem		Constant
+HiLink splintIter		splintAnnKey
+HiLink splintConst		splintAnnKey
+HiLink splintAlt		splintAnnKey
+HiLink splintType		splintAnnKey
+HiLink splintGlobalType	splintAnnKey
+HiLink splintMemMgm		splintAnnKey
+HiLink splintAlias		splintAnnKey
+HiLink splintExposure		splintAnnKey
+HiLink splintDefState		splintAnnKey
+HiLink splintGlobState	splintAnnKey
+HiLink splintNullState	splintAnnKey
+HiLink splintNullPred		splintAnnKey
+HiLink splintExit		splintAnnKey
+HiLink splintExec		splintAnnKey
+HiLink splintSef		splintAnnKey
+HiLink splintDecl		splintAnnKey
+HiLink splintCase		splintAnnKey
+HiLink splintBreak		splintAnnKey
+HiLink splintUnreach		splintAnnKey
+HiLink splintSpecFunc		splintAnnKey
+HiLink splintErrSupp		splintAnnKey
+HiLink splintTypeAcc		splintAnnKey
+HiLink splintMacro		splintAnnKey
+HiLink splintSpecType		splintAnnKey
+HiLink splintAnnKey		Type
+HiLink splintError		Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "splint"
 
diff --git a/runtime/syntax/spup.vim b/runtime/syntax/spup.vim
--- a/runtime/syntax/spup.vim
+++ b/runtime/syntax/spup.vim
@@ -17,11 +17,8 @@
 " If you encounter problems or have questions or suggestions, mail me
 
 " Remove old syntax stuff
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
@@ -206,74 +203,66 @@ syn sync match spupSyncTitle      grouph
 syn sync match spupSyncUnit       grouphere spupUnit       "^UNIT"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_spup_syn_inits")
-    if version < 508
-	let did_spup_syn_inits = 1
-	command -nargs=+ HiLink hi link <args>
-    else
-	command -nargs=+ HiLink hi def link <args>
-    endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-    HiLink spupCdi	    spupSection
-    HiLink spupConditions   spupSection
-    HiLink spupDeclare	    spupSection
-    HiLink spupEstimation   spupSection
-    HiLink spupExternal	    spupSection
-    HiLink spupFlowsheet    spupSection
-    HiLink spupFunction	    spupSection
-    HiLink spupGlobal	    spupSection
-    HiLink spupHomotopy	    spupSection
-    HiLink spupMacro	    spupSection
-    HiLink spupModel	    spupSection
-    HiLink spupOperation    spupSection
-    HiLink spupOptions	    spupSection
-    HiLink spupProcedure    spupSection
-    HiLink spupProfiles	    spupSection
-    HiLink spupReport	    spupSection
-    HiLink spupTitle	    spupConstant  " this is correct, truly ;)
-    HiLink spupUnit	    spupSection
+HiLink spupCdi	    spupSection
+HiLink spupConditions   spupSection
+HiLink spupDeclare	    spupSection
+HiLink spupEstimation   spupSection
+HiLink spupExternal	    spupSection
+HiLink spupFlowsheet    spupSection
+HiLink spupFunction	    spupSection
+HiLink spupGlobal	    spupSection
+HiLink spupHomotopy	    spupSection
+HiLink spupMacro	    spupSection
+HiLink spupModel	    spupSection
+HiLink spupOperation    spupSection
+HiLink spupOptions	    spupSection
+HiLink spupProcedure    spupSection
+HiLink spupProfiles	    spupSection
+HiLink spupReport	    spupSection
+HiLink spupTitle	    spupConstant  " this is correct, truly ;)
+HiLink spupUnit	    spupSection
 
-    HiLink spupCdiSubs	      spupSubs
-    HiLink spupConditionsSubs spupSubs
-    HiLink spupDeclareSubs    spupSubs
-    HiLink spupEstimationSubs spupSubs
-    HiLink spupExternalSubs   spupSubs
-    HiLink spupFlowsheetSubs  spupSubs
-    HiLink spupFunctionSubs   spupSubs
-    HiLink spupHomotopySubs   spupSubs
-    HiLink spupMacroSubs      spupSubs
-    HiLink spupModelSubs      spupSubs
-    HiLink spupOperationSubs  spupSubs
-    HiLink spupOptionsSubs    spupSubs
-    HiLink spupProcedureSubs  spupSubs
-    HiLink spupReportSubs     spupSubs
-    HiLink spupUnitSubs	      spupSubs
+HiLink spupCdiSubs	      spupSubs
+HiLink spupConditionsSubs spupSubs
+HiLink spupDeclareSubs    spupSubs
+HiLink spupEstimationSubs spupSubs
+HiLink spupExternalSubs   spupSubs
+HiLink spupFlowsheetSubs  spupSubs
+HiLink spupFunctionSubs   spupSubs
+HiLink spupHomotopySubs   spupSubs
+HiLink spupMacroSubs      spupSubs
+HiLink spupModelSubs      spupSubs
+HiLink spupOperationSubs  spupSubs
+HiLink spupOptionsSubs    spupSubs
+HiLink spupProcedureSubs  spupSubs
+HiLink spupReportSubs     spupSubs
+HiLink spupUnitSubs	      spupSubs
 
-    HiLink spupCode	       Normal
-    HiLink spupComment	       Comment
-    HiLink spupComment2	       spupComment
-    HiLink spupConditional     Statement
-    HiLink spupConstant	       Constant
-    HiLink spupError	       Error
-    HiLink spupHelp	       Normal
-    HiLink spupIdentifier      Identifier
-    HiLink spupNumber	       Constant
-    HiLink spupOperator	       Special
-    HiLink spupOpenBrace       spupError
-    HiLink spupSection	       Statement
-    HiLink spupSpecial	       spupTextprocGeneric
-    HiLink spupStreams	       Type
-    HiLink spupString	       Constant
-    HiLink spupSubs	       Statement
-    HiLink spupSymbol	       Special
-    HiLink spupTextprocError   Normal
-    HiLink spupTextprocGeneric PreProc
-    HiLink spupTypes	       Type
+HiLink spupCode	       Normal
+HiLink spupComment	       Comment
+HiLink spupComment2	       spupComment
+HiLink spupConditional     Statement
+HiLink spupConstant	       Constant
+HiLink spupError	       Error
+HiLink spupHelp	       Normal
+HiLink spupIdentifier      Identifier
+HiLink spupNumber	       Constant
+HiLink spupOperator	       Special
+HiLink spupOpenBrace       spupError
+HiLink spupSection	       Statement
+HiLink spupSpecial	       spupTextprocGeneric
+HiLink spupStreams	       Type
+HiLink spupString	       Constant
+HiLink spupSubs	       Statement
+HiLink spupSymbol	       Special
+HiLink spupTextprocError   Normal
+HiLink spupTextprocGeneric PreProc
+HiLink spupTypes	       Type
 
-    delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "spup"
 
diff --git a/runtime/syntax/spyce.vim b/runtime/syntax/spyce.vim
--- a/runtime/syntax/spyce.vim
+++ b/runtime/syntax/spyce.vim
@@ -4,11 +4,8 @@
 " URL:		     http://spyce.sourceforge.net
 " Last Change: 2009 Nov 11
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -20,13 +17,9 @@ endif
 " Read the HTML syntax to start with
 let b:did_indent = 1	     " don't perform HTML indentation!
 let html_no_rendering = 1    " do not render <b>,<i>, etc...
-if version < 600
-  so <sfile>:p:h/html.vim
-else
-  runtime! syntax/html.vim
-  unlet b:current_syntax
-  syntax spell default  " added by Bram
-endif
+runtime! syntax/html.vim
+unlet b:current_syntax
+syntax spell default  " added by Bram
 
 " include python
 syn include @Python <sfile>:p:h/python.vim
diff --git a/runtime/syntax/sql.vim b/runtime/syntax/sql.vim
--- a/runtime/syntax/sql.vim
+++ b/runtime/syntax/sql.vim
@@ -10,11 +10,8 @@
 "              If the above exist, it will source the type specified.
 "              If none exist, it will source the default sql.vim file.
 "
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
diff --git a/runtime/syntax/sqlanywhere.vim b/runtime/syntax/sqlanywhere.vim
--- a/runtime/syntax/sqlanywhere.vim
+++ b/runtime/syntax/sqlanywhere.vim
@@ -12,11 +12,8 @@
 "              Updated to Adaptive Server Anywhere  9.0.1
 "              Updated to Adaptive Server Anywhere  9.0.0
 "
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
diff --git a/runtime/syntax/sqlforms.vim b/runtime/syntax/sqlforms.vim
--- a/runtime/syntax/sqlforms.vim
+++ b/runtime/syntax/sqlforms.vim
@@ -7,21 +7,14 @@
 "
 " TODO Find a new maintainer who knows SQL*Forms.
 
-    " For version 5.x, clear all syntax items.
-    " For version 6.x, quit when a syntax file was already loaded.
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
 syntax case ignore
 
-if version >= 600
-  setlocal iskeyword=a-z,A-Z,48-57,_,.,-,>
-else
-  set iskeyword=a-z,A-Z,48-57,_,.,-,>
-endif
+setlocal iskeyword=a-z,A-Z,48-57,_,.,-,>
 
 
     " The SQL reserved words, defined as keywords.
@@ -138,30 +131,23 @@ syntax match sqlNumber  "-\=\<[0-9]*\.\=
 
 syntax sync ccomment sqlComment
 
-if version >= 508 || !exists("did_sqlforms_syn_inits")
-    if version < 508
-	let did_sqlforms_syn_inits = 1
-	command -nargs=+ HiLink hi link <args>
-    else
-	command -nargs=+ HiLink hi def link <args>
-    endif
+command -nargs=+ HiLink hi def link <args>
 
-    HiLink sqlComment Comment
-    HiLink sqlKeyword Statement
-    HiLink sqlNumber Number
-    HiLink sqlOperator Statement
-    HiLink sqlProcedure Statement
-    HiLink sqlFunction Statement
-    HiLink sqlSystem Identifier
-    HiLink sqlSpecial Special
-    HiLink sqlStatement Statement
-    HiLink sqlString String
-    HiLink sqlType Type
-    HiLink sqlCodes Identifier
-    HiLink sqlTriggers PreProc
+HiLink sqlComment Comment
+HiLink sqlKeyword Statement
+HiLink sqlNumber Number
+HiLink sqlOperator Statement
+HiLink sqlProcedure Statement
+HiLink sqlFunction Statement
+HiLink sqlSystem Identifier
+HiLink sqlSpecial Special
+HiLink sqlStatement Statement
+HiLink sqlString String
+HiLink sqlType Type
+HiLink sqlCodes Identifier
+HiLink sqlTriggers PreProc
 
-    delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "sqlforms"
 
diff --git a/runtime/syntax/sqlhana.vim b/runtime/syntax/sqlhana.vim
--- a/runtime/syntax/sqlhana.vim
+++ b/runtime/syntax/sqlhana.vim
@@ -7,11 +7,8 @@
 
 " Description: Updated to SAP HANA SP4
 "
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
diff --git a/runtime/syntax/sqlinformix.vim b/runtime/syntax/sqlinformix.vim
--- a/runtime/syntax/sqlinformix.vim
+++ b/runtime/syntax/sqlinformix.vim
@@ -4,11 +4,8 @@
 " Maintainer:	Dean Hill <dhill@hotmail.com>
 " Last Change:	2004 Aug 30
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -154,43 +151,35 @@ syn keyword sqlTodo TODO FIXME XXX DEBUG
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_sql_syn_inits")
-  if version < 508
-    let did_sql_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
 
-  " === Comment syntax group ===
-  HiLink sqlComment	Comment
+" === Comment syntax group ===
+HiLink sqlComment	Comment
 
-  " === Constant syntax group ===
-  HiLink sqlNumber	Number
-  HiLink sqlBoolean	Boolean
-  HiLink sqlString	String
+" === Constant syntax group ===
+HiLink sqlNumber	Number
+HiLink sqlBoolean	Boolean
+HiLink sqlString	String
 
-  " === Statment syntax group ===
-  HiLink sqlStatement	Statement
-  HiLink sqlConditional	Conditional
-  HiLink sqlRepeat		Repeat
-  HiLink sqlKeyword		Keyword
-  HiLink sqlOperator	Operator
-  HiLink sqlException	Exception
+" === Statment syntax group ===
+HiLink sqlStatement	Statement
+HiLink sqlConditional	Conditional
+HiLink sqlRepeat		Repeat
+HiLink sqlKeyword		Keyword
+HiLink sqlOperator	Operator
+HiLink sqlException	Exception
 
-  " === Identifier syntax group ===
-  HiLink sqlFunction	Function
-
-  " === Type syntax group ===
-  HiLink sqlType	Type
+" === Identifier syntax group ===
+HiLink sqlFunction	Function
 
-  " === Todo syntax group ===
-  HiLink sqlTodo	Todo
+" === Type syntax group ===
+HiLink sqlType	Type
 
-  delcommand HiLink
-endif
+" === Todo syntax group ===
+HiLink sqlTodo	Todo
+
+delcommand HiLink
 
 let b:current_syntax = "sqlinformix"
diff --git a/runtime/syntax/sqlj.vim b/runtime/syntax/sqlj.vim
--- a/runtime/syntax/sqlj.vim
+++ b/runtime/syntax/sqlj.vim
@@ -8,10 +8,8 @@
 
 " au BufNewFile,BufRead *.sqlj so $VIM/syntax/sqlj.vim
 
-" Remove any old syntax stuff hanging around
-if version < 600
-   syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
    finish
 endif
 
@@ -76,27 +74,20 @@ syn match sqlComment	"--.*"
 
 syn sync ccomment sqljComment
 
-if version >= 508 || !exists("did_sqlj_syn_inits")
-  if version < 508
-    let did_sqlj_syn_inits = 1
-    command! -nargs=+ HiLink hi link <args>
-  else
-    command! -nargs=+ HiLink hi def link <args>
-  endif
+command! -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting. Can be overridden later.
-  HiLink sqljComment	Comment
-  HiLink sqljKeyword	sqljSpecial
-  HiLink sqljNumber	Number
-  HiLink sqljOperator	sqljStatement
-  HiLink sqljSpecial	Special
-  HiLink sqljStatement	Statement
-  HiLink sqljString	String
-  HiLink sqljType	Type
-  HiLink sqljPre	PreProc
+" The default methods for highlighting. Can be overridden later.
+HiLink sqljComment	Comment
+HiLink sqljKeyword	sqljSpecial
+HiLink sqljNumber	Number
+HiLink sqljOperator	sqljStatement
+HiLink sqljSpecial	Special
+HiLink sqljStatement	Statement
+HiLink sqljString	String
+HiLink sqljType	Type
+HiLink sqljPre	PreProc
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "sqlj"
 
diff --git a/runtime/syntax/sqr.vim b/runtime/syntax/sqr.vim
--- a/runtime/syntax/sqr.vim
+++ b/runtime/syntax/sqr.vim
@@ -16,19 +16,12 @@
 "    http://lanzarotta.tripod.com/vim.html
 "    jefflanzarotta at yahoo dot com
 
-" For version 5.x, clear all syntax items.
-" For version 6.x, quit when a syntax file was already loaded.
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
-if version >= 600
-  setlocal iskeyword=@,48-57,_,-,#,$,{,}
-else
-  set iskeyword=@,48-57,_,-,#,$,{,}
-endif
+setlocal iskeyword=@,48-57,_,-,#,$,{,}
 
 syn case ignore
 
@@ -220,75 +213,51 @@ syn match	  sqrNumber	/-\=\<\d*\.\=[0-9_
 syn keyword	sqrTodo		TODO FIXME XXX DEBUG NOTE ###
 syn match	sqrTodo		/???/
 
-if version >= 600
-  " See also the sqrString section above for handling of ! characters
-  " inside of strings.  (Those patterns override the ones below.)
-  syn match	sqrComment	/!\@<!!\([^!=].*\|$\)/ contains=sqrTodo
-  "				  the ! can't be preceded by another !,
-  "				  and must be followed by at least one
-  "				  character other than ! or =, or immediately
-  "				  by the end-of-line
-  syn match	sqrComment	/^!=.*/ contains=sqrTodo
-  syn match	sqrComment	/^!!.*/ contains=sqrTodo
-  syn match	sqrError	/^\s\+\zs!=.*/
-  "				  it's an error to have "!=" preceded by
-  "				  just whitespace on the line ("!="
-  "				  preceded by non-whitespace is treated
-  "				  as neither a comment nor an error, since
-  "				  it is often correct, i.e.
-  "				    if #count != 7
-  syn match	sqrError	/.\+\zs!!.*/
-  "				  a "!!" anywhere but at the beginning of
-  "				  the line is always an error
-else "For versions before 6.0, same idea as above but we are limited
-     "to simple patterns only.  Also, the sqrString patterns above
-     "don't seem to take precedence in v5 as they do in v6, so
-     "we split the last rule to ignore comments found inside of
-     "string literals.
-  syn match	sqrComment	/!\([^!=].*\|$\)/ contains=sqrTodo
-  syn match	sqrComment	/^!=.*/ contains=sqrTodo
-  syn match	sqrComment	/^!!.*/ contains=sqrTodo
-  syn match	sqrError	/^\s\+!=.*/
-  syn match	sqrError	/^[^'!]\+!!/
-  "				flag !! on lines that don't have ! or '
-  syn match	sqrError	/^\([^!']*'[^']*'[^!']*\)\+!!/
-  "				flag !! found after matched ' ' chars
-  "				(that aren't also commented)
-endif
+" See also the sqrString section above for handling of ! characters
+" inside of strings.  (Those patterns override the ones below.)
+syn match	sqrComment	/!\@<!!\([^!=].*\|$\)/ contains=sqrTodo
+"				  the ! can't be preceded by another !,
+"				  and must be followed by at least one
+"				  character other than ! or =, or immediately
+"				  by the end-of-line
+syn match	sqrComment	/^!=.*/ contains=sqrTodo
+syn match	sqrComment	/^!!.*/ contains=sqrTodo
+syn match	sqrError	/^\s\+\zs!=.*/
+"				  it's an error to have "!=" preceded by
+"				  just whitespace on the line ("!="
+"				  preceded by non-whitespace is treated
+"				  as neither a comment nor an error, since
+"				  it is often correct, i.e.
+"				    if #count != 7
+syn match	sqrError	/.\+\zs!!.*/
+"				  a "!!" anywhere but at the beginning of
+"				  the line is always an error
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier, only when not done already.
-" For version 5.8 and later, only when an item doesn't have highlighting yet.
-if version >= 508 || !exists("did_sqr_syn_inits")
-  if version < 508
-    let did_sqr_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet.
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink sqrSection Statement
-  HiLink sqrParagraph Statement
-  HiLink sqrReserved Statement
-  HiLink sqrParameter Statement
-  HiLink sqrPreProc PreProc
-  HiLink sqrSubstVar PreProc
-  HiLink sqrCommand Statement
-  HiLink sqrParam Type
-  HiLink sqrFunction Special
+HiLink sqrSection Statement
+HiLink sqrParagraph Statement
+HiLink sqrReserved Statement
+HiLink sqrParameter Statement
+HiLink sqrPreProc PreProc
+HiLink sqrSubstVar PreProc
+HiLink sqrCommand Statement
+HiLink sqrParam Type
+HiLink sqrFunction Special
 
-  HiLink sqrString String
-  HiLink sqrStrOpen Todo
-  HiLink sqrNumber Number
-  HiLink sqrVariable Identifier
+HiLink sqrString String
+HiLink sqrStrOpen Todo
+HiLink sqrNumber Number
+HiLink sqrVariable Identifier
 
-  HiLink sqrComment Comment
-  HiLink sqrTodo Todo
-  HiLink sqrError Error
+HiLink sqrComment Comment
+HiLink sqrTodo Todo
+HiLink sqrError Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "sqr"
 
diff --git a/runtime/syntax/squid.vim b/runtime/syntax/squid.vim
--- a/runtime/syntax/squid.vim
+++ b/runtime/syntax/squid.vim
@@ -7,11 +7,8 @@
 "               Michael Dotzler <Michael.Dotzler@leoni.com>
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -123,30 +120,22 @@ syn match	squidRegexOpt	contained "\(^\s
 syn sync minlines=3
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_squid_syntax_inits")
-  if version < 508
-    let did_squid_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink squidTodo	Todo
-  HiLink squidComment	Comment
-  HiLink squidTag	Special
-  HiLink squidConf	Keyword
-  HiLink squidOpt	Constant
-  HiLink squidAction	String
-  HiLink squidNumber	Number
-  HiLink squidIP	Number
-  HiLink squidAcl	Keyword
-  HiLink squidStr	String
-  HiLink squidRegexOpt	Special
+HiLink squidTodo	Todo
+HiLink squidComment	Comment
+HiLink squidTag	Special
+HiLink squidConf	Keyword
+HiLink squidOpt	Constant
+HiLink squidAction	String
+HiLink squidNumber	Number
+HiLink squidIP	Number
+HiLink squidAcl	Keyword
+HiLink squidStr	String
+HiLink squidRegexOpt	Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "squid"
 
diff --git a/runtime/syntax/srec.vim b/runtime/syntax/srec.vim
--- a/runtime/syntax/srec.vim
+++ b/runtime/syntax/srec.vim
@@ -24,11 +24,8 @@
 " States in parentheses in the upper format description indicate that they
 " should not appear in a valid file.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -63,33 +60,25 @@ syn match srecDataUnexpected "[0-9a-fA-F
 syn match srecChecksum "[0-9a-fA-F]\{2}$" contained
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_srec_syntax_inits")
-  if version < 508
-    let did_srec_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting. Can be overridden later
-  HiLink srecRecStart            srecRecType
-  HiLink srecRecTypeUnknown      srecRecType
-  HiLink srecRecType             WarningMsg
-  HiLink srecByteCount           Constant
-  hi def srecAddressFieldUnknown term=italic cterm=italic gui=italic
-  HiLink srecNoAddress           DiffAdd
-  HiLink srecDataAddress         Comment
-  HiLink srecRecCount            srecNoAddress
-  HiLink srecStartAddress        srecDataAddress
-  hi def srecDataOdd             term=bold cterm=bold gui=bold
-  hi def srecDataEven            term=NONE cterm=NONE gui=NONE
-  HiLink srecDataUnexpected      Error
-  HiLink srecChecksum            DiffChange
+" The default methods for highlighting. Can be overridden later
+HiLink srecRecStart            srecRecType
+HiLink srecRecTypeUnknown      srecRecType
+HiLink srecRecType             WarningMsg
+HiLink srecByteCount           Constant
+hi def srecAddressFieldUnknown term=italic cterm=italic gui=italic
+HiLink srecNoAddress           DiffAdd
+HiLink srecDataAddress         Comment
+HiLink srecRecCount            srecNoAddress
+HiLink srecStartAddress        srecDataAddress
+hi def srecDataOdd             term=bold cterm=bold gui=bold
+hi def srecDataEven            term=NONE cterm=NONE gui=NONE
+HiLink srecDataUnexpected      Error
+HiLink srecChecksum            DiffChange
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "srec"
 
diff --git a/runtime/syntax/sshconfig.vim b/runtime/syntax/sshconfig.vim
--- a/runtime/syntax/sshconfig.vim
+++ b/runtime/syntax/sshconfig.vim
@@ -10,19 +10,12 @@
 "
 
 " Setup
-if version >= 600
-  if exists("b:current_syntax")
-    finish
-  endif
-else
-  syntax clear
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+  finish
 endif
 
-if version >= 600
-  setlocal iskeyword=_,-,a-z,A-Z,48-57
-else
-  set iskeyword=_,-,a-z,A-Z,48-57
-endif
+setlocal iskeyword=_,-,a-z,A-Z,48-57
 
 
 " case on
@@ -233,40 +226,33 @@ syn keyword sshconfigKeyword VisualHostK
 syn keyword sshconfigKeyword XAuthLocation
 
 " Define the default highlighting
-if version >= 508 || !exists("did_sshconfig_syntax_inits")
-  if version < 508
-    let did_sshconfig_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink sshconfigComment        Comment
-  HiLink sshconfigTodo           Todo
-  HiLink sshconfigHostPort       sshconfigConstant
-  HiLink sshconfigNumber         sshconfigConstant
-  HiLink sshconfigConstant       Constant
-  HiLink sshconfigYesNo          sshconfigEnum
-  HiLink sshconfigCipher         sshconfigEnum
-  HiLink sshconfigCiphers	 sshconfigEnum
-  HiLink sshconfigMAC            sshconfigEnum
-  HiLink sshconfigHostKeyAlgo    sshconfigEnum
-  HiLink sshconfigLogLevel       sshconfigEnum
-  HiLink sshconfigSysLogFacility sshconfigEnum
-  HiLink sshconfigAddressFamily  sshconfigEnum
-  HiLink sshconfigIPQoS		 sshconfigEnum
-  HiLink sshconfigKbdInteractive sshconfigEnum
-  HiLink sshconfigKexAlgo	 sshconfigEnum
-  HiLink sshconfigTunnel	 sshconfigEnum
-  HiLink sshconfigPreferredAuth  sshconfigEnum
-  HiLink sshconfigVar            sshconfigEnum
-  HiLink sshconfigEnum           Identifier
-  HiLink sshconfigSpecial        Special
-  HiLink sshconfigKeyword        Keyword
-  HiLink sshconfigHostSect       Type
-  HiLink sshconfigMatch          Type
-  delcommand HiLink
-endif
+HiLink sshconfigComment        Comment
+HiLink sshconfigTodo           Todo
+HiLink sshconfigHostPort       sshconfigConstant
+HiLink sshconfigNumber         sshconfigConstant
+HiLink sshconfigConstant       Constant
+HiLink sshconfigYesNo          sshconfigEnum
+HiLink sshconfigCipher         sshconfigEnum
+HiLink sshconfigCiphers	 sshconfigEnum
+HiLink sshconfigMAC            sshconfigEnum
+HiLink sshconfigHostKeyAlgo    sshconfigEnum
+HiLink sshconfigLogLevel       sshconfigEnum
+HiLink sshconfigSysLogFacility sshconfigEnum
+HiLink sshconfigAddressFamily  sshconfigEnum
+HiLink sshconfigIPQoS		 sshconfigEnum
+HiLink sshconfigKbdInteractive sshconfigEnum
+HiLink sshconfigKexAlgo	 sshconfigEnum
+HiLink sshconfigTunnel	 sshconfigEnum
+HiLink sshconfigPreferredAuth  sshconfigEnum
+HiLink sshconfigVar            sshconfigEnum
+HiLink sshconfigEnum           Identifier
+HiLink sshconfigSpecial        Special
+HiLink sshconfigKeyword        Keyword
+HiLink sshconfigHostSect       Type
+HiLink sshconfigMatch          Type
+delcommand HiLink
 
 let b:current_syntax = "sshconfig"
 
diff --git a/runtime/syntax/sshdconfig.vim b/runtime/syntax/sshdconfig.vim
--- a/runtime/syntax/sshdconfig.vim
+++ b/runtime/syntax/sshdconfig.vim
@@ -11,19 +11,12 @@
 "
 
 " Setup
-if version >= 600
-  if exists("b:current_syntax")
-    finish
-  endif
-else
-  syntax clear
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+  finish
 endif
 
-if version >= 600
-  setlocal iskeyword=_,-,a-z,A-Z,48-57
-else
-  set iskeyword=_,-,a-z,A-Z,48-57
-endif
+setlocal iskeyword=_,-,a-z,A-Z,48-57
 
 
 " case on
@@ -239,43 +232,36 @@ syn keyword sshdconfigKeyword XAuthLocat
 
 
 " Define the default highlighting
-if version >= 508 || !exists("did_sshdconfig_syntax_inits")
-  if version < 508
-    let did_sshdconfig_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink sshdconfigComment              Comment
-  HiLink sshdconfigTodo                 Todo
-  HiLink sshdconfigHostPort             sshdconfigConstant
-  HiLink sshdconfigTime                 sshdconfigConstant
-  HiLink sshdconfigNumber               sshdconfigConstant
-  HiLink sshdconfigConstant             Constant
-  HiLink sshdconfigYesNo                sshdconfigEnum
-  HiLink sshdconfigAddressFamily        sshdconfigEnum
-  HiLink sshdconfigPrivilegeSeparation  sshdconfigEnum
-  HiLink sshdconfigTcpForwarding        sshdconfigEnum
-  HiLink sshdconfigRootLogin            sshdconfigEnum
-  HiLink sshdconfigCiphers              sshdconfigEnum
-  HiLink sshdconfigMAC                  sshdconfigEnum
-  HiLink sshdconfigHostKeyAlgo          sshdconfigEnum
-  HiLink sshdconfigRootLogin            sshdconfigEnum
-  HiLink sshdconfigLogLevel             sshdconfigEnum
-  HiLink sshdconfigSysLogFacility       sshdconfigEnum
-  HiLink sshdconfigVar                  sshdconfigEnum
-  HiLink sshdconfigCompression          sshdconfigEnum
-  HiLink sshdconfigIPQoS                sshdconfigEnum
-  HiLink sshdconfigKexAlgo              sshdconfigEnum
-  HiLink sshdconfigTunnel               sshdconfigEnum
-  HiLink sshdconfigSubsystem            sshdconfigEnum
-  HiLink sshdconfigEnum                 Function
-  HiLink sshdconfigSpecial              Special
-  HiLink sshdconfigKeyword              Keyword
-  HiLink sshdconfigMatch                Type
-  delcommand HiLink
-endif
+HiLink sshdconfigComment              Comment
+HiLink sshdconfigTodo                 Todo
+HiLink sshdconfigHostPort             sshdconfigConstant
+HiLink sshdconfigTime                 sshdconfigConstant
+HiLink sshdconfigNumber               sshdconfigConstant
+HiLink sshdconfigConstant             Constant
+HiLink sshdconfigYesNo                sshdconfigEnum
+HiLink sshdconfigAddressFamily        sshdconfigEnum
+HiLink sshdconfigPrivilegeSeparation  sshdconfigEnum
+HiLink sshdconfigTcpForwarding        sshdconfigEnum
+HiLink sshdconfigRootLogin            sshdconfigEnum
+HiLink sshdconfigCiphers              sshdconfigEnum
+HiLink sshdconfigMAC                  sshdconfigEnum
+HiLink sshdconfigHostKeyAlgo          sshdconfigEnum
+HiLink sshdconfigRootLogin            sshdconfigEnum
+HiLink sshdconfigLogLevel             sshdconfigEnum
+HiLink sshdconfigSysLogFacility       sshdconfigEnum
+HiLink sshdconfigVar                  sshdconfigEnum
+HiLink sshdconfigCompression          sshdconfigEnum
+HiLink sshdconfigIPQoS                sshdconfigEnum
+HiLink sshdconfigKexAlgo              sshdconfigEnum
+HiLink sshdconfigTunnel               sshdconfigEnum
+HiLink sshdconfigSubsystem            sshdconfigEnum
+HiLink sshdconfigEnum                 Function
+HiLink sshdconfigSpecial              Special
+HiLink sshdconfigKeyword              Keyword
+HiLink sshdconfigMatch                Type
+delcommand HiLink
 
 let b:current_syntax = "sshdconfig"
 
diff --git a/runtime/syntax/st.vim b/runtime/syntax/st.vim
--- a/runtime/syntax/st.vim
+++ b/runtime/syntax/st.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Arndt Hesse <hesse@self.de>
 " Last Change:	2012 Feb 12 by Thilo Six
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -77,30 +74,22 @@ hi link stBlockError stError
 syn sync minlines=50
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_st_syntax_inits")
-  if version < 508
-    let did_st_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink stKeyword		Statement
-  HiLink stMethod		Statement
-  HiLink stComment		Comment
-  HiLink stCharacter		Constant
-  HiLink stString		Constant
-  HiLink stSymbol		Special
-  HiLink stNumber		Type
-  HiLink stFloat		Type
-  HiLink stError		Error
-  HiLink stLocalVariables	Identifier
-  HiLink stBlockVariable	Identifier
+HiLink stKeyword		Statement
+HiLink stMethod		Statement
+HiLink stComment		Comment
+HiLink stCharacter		Constant
+HiLink stString		Constant
+HiLink stSymbol		Special
+HiLink stNumber		Type
+HiLink stFloat		Type
+HiLink stError		Error
+HiLink stLocalVariables	Identifier
+HiLink stBlockVariable	Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "st"
 
diff --git a/runtime/syntax/stata.vim b/runtime/syntax/stata.vim
--- a/runtime/syntax/stata.vim
+++ b/runtime/syntax/stata.vim
@@ -12,9 +12,8 @@
 " 26apr2006	fixed brace confusion in stataErrInParen and stataErrInBracket
 "		fixed paren/bracket confusion in stataFuncGroup
 
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
diff --git a/runtime/syntax/stp.vim b/runtime/syntax/stp.vim
--- a/runtime/syntax/stp.vim
+++ b/runtime/syntax/stp.vim
@@ -4,11 +4,8 @@
 "	  URL: http://lanzarotta.tripod.com/vim/syntax/stp.vim.zip
 " Last Change: March 05, 2002
 
-" For version 5.x, clear all syntax items.
-" For version 6.x, quit when a syntax file was already loaded.
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -131,36 +128,28 @@ syn match  stpParenError ")"
 syn sync minlines=10 maxlines=100
 
 " Define the default highlighting.
-" For version 5.x and earlier, only when not done already.
-" For version 5.8 and later, only when and item doesn't have highlighting yet.
-if version >= 508 || !exists("did_stp_syn_inits")
-  if version < 508
-    let did_stp_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when and item doesn't have highlighting yet.
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink stpConditional Conditional
-  HiLink stpComment Comment
-  HiLink stpKeyword Keyword
-  HiLink stpNumber Number
-  HiLink stpOperator Operator
-  HiLink stpSpecial Special
-  HiLink stpStatement Statement
-  HiLink stpString String
-  HiLink stpStringError Error
-  HiLink stpType Type
-  HiLink stpTodo Todo
-  HiLink stpFunction Function
-  HiLink stpGlobals Macro
-  HiLink stpParen Normal
-  HiLink stpParenError Error
-  HiLink stpSQLKeyword Function
-  HiLink stpRepeat Repeat
+HiLink stpConditional Conditional
+HiLink stpComment Comment
+HiLink stpKeyword Keyword
+HiLink stpNumber Number
+HiLink stpOperator Operator
+HiLink stpSpecial Special
+HiLink stpStatement Statement
+HiLink stpString String
+HiLink stpStringError Error
+HiLink stpType Type
+HiLink stpTodo Todo
+HiLink stpFunction Function
+HiLink stpGlobals Macro
+HiLink stpParen Normal
+HiLink stpParenError Error
+HiLink stpSQLKeyword Function
+HiLink stpRepeat Repeat
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "stp"
 
diff --git a/runtime/syntax/strace.vim b/runtime/syntax/strace.vim
--- a/runtime/syntax/strace.vim
+++ b/runtime/syntax/strace.vim
@@ -5,12 +5,9 @@
 " Last Change: 2015-01-16
 
 " Setup
-if version >= 600
-	if exists("b:current_syntax")
-		finish
-	endif
-else
-	syntax clear
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+	finish
 endif
 
 syn case match
@@ -35,31 +32,24 @@ syn match straceOperator "[-+=*/!%&|:,]"
 syn region straceComment start="/\*" end="\*/" oneline
 
 " Define the default highlighting
-if version >= 508 || !exists("did_strace_syntax_inits")
-	if version < 508
-		let did_strace_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink straceComment Comment
-	HiLink straceVerbosed Comment
-	HiLink stracePID PreProc
-	HiLink straceNumber Number
-	HiLink straceNumberRHS Type
-	HiLink straceOtherRHS Type
-	HiLink straceString String
-	HiLink straceConstant Function
-	HiLink straceEquals Type
-	HiLink straceSysCallEmbed straceSysCall
-	HiLink straceSysCall Statement
-	HiLink straceParenthesis Statement
-	HiLink straceOperator Normal
-	HiLink straceSpecialChar Special
-	HiLink straceOtherPID PreProc
+HiLink straceComment Comment
+HiLink straceVerbosed Comment
+HiLink stracePID PreProc
+HiLink straceNumber Number
+HiLink straceNumberRHS Type
+HiLink straceOtherRHS Type
+HiLink straceString String
+HiLink straceConstant Function
+HiLink straceEquals Type
+HiLink straceSysCallEmbed straceSysCall
+HiLink straceSysCall Statement
+HiLink straceParenthesis Statement
+HiLink straceOperator Normal
+HiLink straceSpecialChar Special
+HiLink straceOtherPID PreProc
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "strace"
diff --git a/runtime/syntax/svn.vim b/runtime/syntax/svn.vim
--- a/runtime/syntax/svn.vim
+++ b/runtime/syntax/svn.vim
@@ -15,11 +15,8 @@
 "   Myk Taylor
 "   Stefano Zacchiroli
 
-" For version 5.x: Clear all syntax items.
-" For version 6.x: Quit when a syntax file was already loaded.
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded.
+if exists("b:current_syntax")
   finish
 endif
 
@@ -42,28 +39,20 @@ syn sync clear
 syn sync match svnSync  grouphere svnRegion "^--.*--$"me=s-1
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already.
-" For version 5.8 and later: only when an item doesn't have highlighting yet.
-if version >= 508 || !exists("did_svn_syn_inits")
-  if version <= 508
-    let did_svn_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet.
+command -nargs=+ HiLink hi def link <args>
+
+HiLink svnSummary     Keyword
+HiLink svnBlank       Error
 
-  HiLink svnSummary     Keyword
-  HiLink svnBlank       Error
+HiLink svnRegion      Comment
+HiLink svnDelimiter   NonText
+HiLink svnRemoved     Constant
+HiLink svnAdded       Identifier
+HiLink svnModified    Special
+HiLink svnProperty    Special
+HiLink svnRenamed     Special
 
-  HiLink svnRegion      Comment
-  HiLink svnDelimiter   NonText
-  HiLink svnRemoved     Constant
-  HiLink svnAdded       Identifier
-  HiLink svnModified    Special
-  HiLink svnProperty    Special
-  HiLink svnRenamed     Special
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "svn"
diff --git a/runtime/syntax/systemverilog.vim b/runtime/syntax/systemverilog.vim
--- a/runtime/syntax/systemverilog.vim
+++ b/runtime/syntax/systemverilog.vim
@@ -3,21 +3,14 @@
 " Maintainer:  kocha <kocha.lsifrontend@gmail.com>
 " Last Change: 12-Aug-2013. 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-    syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
     finish
 endif
 
 " Read in Verilog syntax files
-if version < 600
-    so <sfile>:p:h/verilog.vim
-else
-    runtime! syntax/verilog.vim
-    unlet b:current_syntax
-endif
+runtime! syntax/verilog.vim
+unlet b:current_syntax
 
 " IEEE1800-2005
 syn keyword systemverilogStatement   always_comb always_ff always_latch
@@ -76,25 +69,18 @@ syn keyword systemverilogStatement   imp
 syn keyword systemverilogStatement   interconnect soft nettype
 
 " Define the default highlighting.
-if version >= 508 || !exists("did_systemverilog_syn_inits")
-   if version < 508
-      let did_systemverilog_syn_inits = 1
-      command -nargs=+ HiLink hi link <args>
-   else
-      command -nargs=+ HiLink hi def link <args>
-   endif
+command -nargs=+ HiLink hi def link <args>
 
-   " The default highlighting.
-   HiLink systemverilogStatement       Statement
-   HiLink systemverilogTypeDef         TypeDef
-   HiLink systemverilogConditional     Conditional
-   HiLink systemverilogRepeat          Repeat
-   HiLink systemverilogLabel           Label
-   HiLink systemverilogGlobal          Define
-   HiLink systemverilogNumber          Number
+" The default highlighting.
+HiLink systemverilogStatement       Statement
+HiLink systemverilogTypeDef         TypeDef
+HiLink systemverilogConditional     Conditional
+HiLink systemverilogRepeat          Repeat
+HiLink systemverilogLabel           Label
+HiLink systemverilogGlobal          Define
+HiLink systemverilogNumber          Number
 
-   delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "systemverilog"
 
diff --git a/runtime/syntax/tads.vim b/runtime/syntax/tads.vim
--- a/runtime/syntax/tads.vim
+++ b/runtime/syntax/tads.vim
@@ -13,11 +13,8 @@
 " Actually, should cvtstr etc. be functions?! (change tadsFunction)
 " Make global etc. into Identifiers, since we don't have regular variables?
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -122,57 +119,49 @@ endif
 execute "syn sync maxlines=" . tads_sync_dist
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_tads_syn_inits")
-  if version < 508
-    let did_tads_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting.  Can be overridden later
-  HiLink tadsFunctionDef Function
-  HiLink tadsFunction  Structure
-  HiLink tadsClass     Structure
-  HiLink tadsClassDef  Identifier
-  HiLink tadsObjectDef Identifier
+" The default methods for highlighting.  Can be overridden later
+HiLink tadsFunctionDef Function
+HiLink tadsFunction  Structure
+HiLink tadsClass     Structure
+HiLink tadsClassDef  Identifier
+HiLink tadsObjectDef Identifier
 " no highlight for tadsEmbedded, so it prints as normal text w/in the string
 
-  HiLink tadsOperator	Operator
-  HiLink tadsStructure	Structure
-  HiLink tadsTodo	Todo
-  HiLink tadsLabel	Label
-  HiLink tadsConditional	Conditional
-  HiLink tadsRepeat	Repeat
-  HiLink tadsException	Exception
-  HiLink tadsStatement	Statement
-  HiLink tadsStorageClass	StorageClass
-  HiLink tadsKeyWord   Keyword
-  HiLink tadsSpecial	SpecialChar
-  HiLink tadsNumber	Number
-  HiLink tadsBoolean	Boolean
-  HiLink tadsDoubleString	tadsString
-  HiLink tadsSingleString	tadsString
+HiLink tadsOperator	Operator
+HiLink tadsStructure	Structure
+HiLink tadsTodo	Todo
+HiLink tadsLabel	Label
+HiLink tadsConditional	Conditional
+HiLink tadsRepeat	Repeat
+HiLink tadsException	Exception
+HiLink tadsStatement	Statement
+HiLink tadsStorageClass	StorageClass
+HiLink tadsKeyWord   Keyword
+HiLink tadsSpecial	SpecialChar
+HiLink tadsNumber	Number
+HiLink tadsBoolean	Boolean
+HiLink tadsDoubleString	tadsString
+HiLink tadsSingleString	tadsString
 
-  HiLink tadsOctalError	tadsError
-  HiLink tadsCommentError	tadsError
-  HiLink tadsBraceError	tadsError
-  HiLink tadsInBrace	tadsError
-  HiLink tadsError	Error
+HiLink tadsOctalError	tadsError
+HiLink tadsCommentError	tadsError
+HiLink tadsBraceError	tadsError
+HiLink tadsInBrace	tadsError
+HiLink tadsError	Error
 
-  HiLink tadsInclude	Include
-  HiLink tadsPreProc	PreProc
-  HiLink tadsDefine	Macro
-  HiLink tadsIncluded	tadsString
-  HiLink tadsPreCondit	PreCondit
+HiLink tadsInclude	Include
+HiLink tadsPreProc	PreProc
+HiLink tadsDefine	Macro
+HiLink tadsIncluded	tadsString
+HiLink tadsPreCondit	PreCondit
 
-  HiLink tadsString	String
-  HiLink tadsComment	Comment
+HiLink tadsString	String
+HiLink tadsComment	Comment
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "tads"
diff --git a/runtime/syntax/tags.vim b/runtime/syntax/tags.vim
--- a/runtime/syntax/tags.vim
+++ b/runtime/syntax/tags.vim
@@ -4,11 +4,8 @@
 " Version:		4
 " URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_TAGS
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -22,25 +19,17 @@ syn match	tagComment	"^!_TAG_.*$"
 syn match	tagField	contained "[a-z]*:"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_drchip_tags_inits")
-  if version < 508
-    let did_drchip_tags_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink tagBaseFile	PreProc
-  HiLink tagComment	Comment
-  HiLink tagDelim	Delimiter
-  HiLink tagField	Number
-  HiLink tagName	Identifier
-  HiLink tagPath	PreProc
+HiLink tagBaseFile	PreProc
+HiLink tagComment	Comment
+HiLink tagDelim	Delimiter
+HiLink tagField	Number
+HiLink tagName	Identifier
+HiLink tagPath	PreProc
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "tags"
 
diff --git a/runtime/syntax/tak.vim b/runtime/syntax/tak.vim
--- a/runtime/syntax/tak.vim
+++ b/runtime/syntax/tak.vim
@@ -8,11 +8,8 @@
 
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -32,11 +29,7 @@ syn case ignore
 let fortran_free_source=1
 
 " Load FORTRAN syntax file
-if version < 600
-  source <sfile>:p:h/fortran.vim
-else
-  runtime! syntax/fortran.vim
-endif
+runtime! syntax/fortran.vim
 unlet b:current_syntax
 
 
@@ -95,40 +88,32 @@ endif
 
 
 " Define the default highlighting
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_tak_syntax_inits")
-  if version < 508
-    let did_tak_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink takMacro		Macro
+HiLink takOptions		Special
+HiLink takRoutine		Type
+HiLink takControl		Special
+HiLink takSolids		Special
+HiLink takSolidsArg		Statement
+HiLink takIdentifier		Identifier
 
-  HiLink takMacro		Macro
-  HiLink takOptions		Special
-  HiLink takRoutine		Type
-  HiLink takControl		Special
-  HiLink takSolids		Special
-  HiLink takSolidsArg		Statement
-  HiLink takIdentifier		Identifier
-
-  HiLink takFortran		PreProc
-  HiLink takMotran		PreProc
+HiLink takFortran		PreProc
+HiLink takMotran		PreProc
 
-  HiLink takComment		Comment
-  HiLink takHeader		Typedef
-  HiLink takIncludeFile		Type
-  HiLink takInteger		Number
-  HiLink takFloat		Float
-  HiLink takScientific		Float
+HiLink takComment		Comment
+HiLink takHeader		Typedef
+HiLink takIncludeFile		Type
+HiLink takInteger		Number
+HiLink takFloat		Float
+HiLink takScientific		Float
 
-  HiLink takEndData		Macro
+HiLink takEndData		Macro
 
-  HiLink takTodo		Todo
+HiLink takTodo		Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "tak"
diff --git a/runtime/syntax/takcmp.vim b/runtime/syntax/takcmp.vim
--- a/runtime/syntax/takcmp.vim
+++ b/runtime/syntax/takcmp.vim
@@ -8,11 +8,8 @@
 
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -51,30 +48,22 @@ syn case ignore
 
 
 " Define the default highlighting
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_takcmp_syntax_inits")
-  if version < 508
-    let did_takcmp_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink takcmpTitle		   Type
+HiLink takcmpUnit		   PreProc
+
+HiLink takcmpLabel		   Statement
 
-  HiLink takcmpTitle		   Type
-  HiLink takcmpUnit		   PreProc
-
-  HiLink takcmpLabel		   Statement
-
-  HiLink takcmpHeader		   takHeader
+HiLink takcmpHeader		   takHeader
 
-  HiLink takcmpDate		   Identifier
-  HiLink takcmpTime		   Identifier
-  HiLink takcmpInteger		   Number
-  HiLink takcmpFloat		   Special
+HiLink takcmpDate		   Identifier
+HiLink takcmpTime		   Identifier
+HiLink takcmpInteger		   Number
+HiLink takcmpFloat		   Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "takcmp"
diff --git a/runtime/syntax/takout.vim b/runtime/syntax/takout.vim
--- a/runtime/syntax/takout.vim
+++ b/runtime/syntax/takout.vim
@@ -8,11 +8,8 @@
 
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -24,11 +21,7 @@ syn case match
 
 
 " Load TAK syntax file
-if version < 600
-  source <sfile>:p:h/tak.vim
-else
-  runtime! syntax/tak.vim
-endif
+runtime! syntax/tak.vim
 unlet b:current_syntax
 
 
@@ -70,31 +63,23 @@ syn match takoutError	     "<<< Error >>
 
 
 " Define the default highlighting
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_takout_syntax_inits")
-  if version < 508
-    let did_takout_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink takoutPos		   Statement
+HiLink takoutNeg		   PreProc
+HiLink takoutTitle		   Type
+HiLink takoutFile		   takIncludeFile
+HiLink takoutInteger		   takInteger
 
-  HiLink takoutPos		   Statement
-  HiLink takoutNeg		   PreProc
-  HiLink takoutTitle		   Type
-  HiLink takoutFile		   takIncludeFile
-  HiLink takoutInteger		   takInteger
+HiLink takoutSectionDelim	    Delimiter
+HiLink takoutSectionTitle	   Exception
+HiLink takoutHeaderDelim	   SpecialComment
+HiLink takoutLabel		   Identifier
 
-  HiLink takoutSectionDelim	    Delimiter
-  HiLink takoutSectionTitle	   Exception
-  HiLink takoutHeaderDelim	   SpecialComment
-  HiLink takoutLabel		   Identifier
+HiLink takoutError		   Error
 
-  HiLink takoutError		   Error
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "takout"
diff --git a/runtime/syntax/taskdata.vim b/runtime/syntax/taskdata.vim
--- a/runtime/syntax/taskdata.vim
+++ b/runtime/syntax/taskdata.vim
@@ -4,11 +4,8 @@
 " Updated:	Wed Jul  8 19:46:20 EDT 2009
 
 
-" For version 5.x: Clear all syntax items.
-" For version 6.x: Quit when a syntax file was already loaded.
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded.
+if exists("b:current_syntax")
   finish
 endif
 let s:keepcpo= &cpo
diff --git a/runtime/syntax/taskedit.vim b/runtime/syntax/taskedit.vim
--- a/runtime/syntax/taskedit.vim
+++ b/runtime/syntax/taskedit.vim
@@ -4,11 +4,8 @@
 " Updated:	Wed Jul  8 19:46:32 EDT 2009
 
 
-" For version 5.x: Clear all syntax items.
-" For version 6.x: Quit when a syntax file was already loaded.
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded.
+if exists("b:current_syntax")
   finish
 endif
 let s:keepcpo= &cpo
diff --git a/runtime/syntax/tasm.vim b/runtime/syntax/tasm.vim
--- a/runtime/syntax/tasm.vim
+++ b/runtime/syntax/tasm.vim
@@ -3,11 +3,8 @@
 " Maintaner: FooLman of United Force <foolman@bigfoot.com>
 " Last Change: 2012 Feb 03 by Thilo Six
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -95,32 +92,24 @@ syn match tasmOct "\<[0-7]\+O\>"
 syn match tasmBin "\<[01]\+B\>"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_tasm_syntax_inits")
-  if version < 508
-    let did_tasm_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink tasmString String
-  HiLink tasmDec Number
-  HiLink tasmHex Number
-  HiLink tasmOct Number
-  HiLink tasmBin Number
-  HiLink tasmInstruction Keyword
-  HiLink tasmCoprocInstr Keyword
-  HiLink tasmMMXInst	Keyword
-  HiLink tasmDirective PreProc
-  HiLink tasmRegister Identifier
-  HiLink tasmProctype PreProc
-  HiLink tasmComment Comment
-  HiLink tasmLabel Label
+HiLink tasmString String
+HiLink tasmDec Number
+HiLink tasmHex Number
+HiLink tasmOct Number
+HiLink tasmBin Number
+HiLink tasmInstruction Keyword
+HiLink tasmCoprocInstr Keyword
+HiLink tasmMMXInst	Keyword
+HiLink tasmDirective PreProc
+HiLink tasmRegister Identifier
+HiLink tasmProctype PreProc
+HiLink tasmComment Comment
+HiLink tasmLabel Label
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:curret_syntax = "tasm"
 
diff --git a/runtime/syntax/tcl.vim b/runtime/syntax/tcl.vim
--- a/runtime/syntax/tcl.vim
+++ b/runtime/syntax/tcl.vim
@@ -10,11 +10,8 @@
 " Version:	1.14
 " URL:		http://bitbucket.org/taylor_venable/metasyntax/src/tip/Config/vim/syntax/tcl.vim
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -238,49 +235,41 @@ syn region  tclComment		start=/;\s*\#/hs
 "syn sync ccomment tclComment
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_tcl_syntax_inits")
-  if version < 508
-    let did_tcl_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink tcltkSwitch		Special
-  HiLink tclExpand		Special
-  HiLink tclLabel		Label
-  HiLink tclConditional		Conditional
-  HiLink tclRepeat		Repeat
-  HiLink tclNumber		Number
-  HiLink tclError		Error
-  HiLink tclCommand		Statement
-  HiLink tclProcCommand		Type
-  HiLink tclString		String
-  HiLink tclComment		Comment
-  HiLink tclSpecial		Special
-  HiLink tclTodo		Todo
-  " Below here are the commands and their options.
-  HiLink tcltkCommandColor	Statement
-  HiLink tcltkWidgetColor	Structure
-  HiLink tclLineContinue	WarningMsg
+HiLink tcltkSwitch		Special
+HiLink tclExpand		Special
+HiLink tclLabel		Label
+HiLink tclConditional		Conditional
+HiLink tclRepeat		Repeat
+HiLink tclNumber		Number
+HiLink tclError		Error
+HiLink tclCommand		Statement
+HiLink tclProcCommand		Type
+HiLink tclString		String
+HiLink tclComment		Comment
+HiLink tclSpecial		Special
+HiLink tclTodo		Todo
+" Below here are the commands and their options.
+HiLink tcltkCommandColor	Statement
+HiLink tcltkWidgetColor	Structure
+HiLink tclLineContinue	WarningMsg
 if exists('g:tcl_warn_continuation')
-  HiLink tclNotLineContinue	ErrorMsg
+HiLink tclNotLineContinue	ErrorMsg
 endif
-  HiLink tcltkStringSwitch	Special
-  HiLink tcltkArraySwitch	Special
-  HiLink tcltkLsortSwitch	Special
-  HiLink tcltkPackSwitch	Special
-  HiLink tcltkPackConfSwitch	Special
-  HiLink tcltkMaths		Special
-  HiLink tcltkNamespaceSwitch	Special
-  HiLink tcltkWidgetSwitch	Special
-  HiLink tcltkPackConfColor	Identifier
-  HiLink tclVarRef		Identifier
+HiLink tcltkStringSwitch	Special
+HiLink tcltkArraySwitch	Special
+HiLink tcltkLsortSwitch	Special
+HiLink tcltkPackSwitch	Special
+HiLink tcltkPackConfSwitch	Special
+HiLink tcltkMaths		Special
+HiLink tcltkNamespaceSwitch	Special
+HiLink tcltkWidgetSwitch	Special
+HiLink tcltkPackConfColor	Identifier
+HiLink tclVarRef		Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "tcl"
 
diff --git a/runtime/syntax/tex.vim b/runtime/syntax/tex.vim
--- a/runtime/syntax/tex.vim
+++ b/runtime/syntax/tex.vim
@@ -40,11 +40,8 @@
 "      using conceal mode       :help tex-conceal
 
 " Version Clears: {{{1
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 let s:keepcpo= &cpo
@@ -54,14 +51,8 @@ scriptencoding utf-8
 " Define the default highlighting. {{{1
 " For version 5.7 and earlier: only when not done already
 " For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_tex_syntax_inits")
- let did_tex_syntax_inits = 1
- if version < 508
-  command -nargs=+ HiLink hi link <args>
- else
-  command -nargs=+ HiLink hi def link <args>
- endif
-endif
+let did_tex_syntax_inits = 1
+command -nargs=+ HiLink hi def link <args>
 
 " by default, enable all region-based highlighting
 let s:tex_fast= "bcmMprsSvV"
@@ -598,27 +589,17 @@ if s:tex_fast =~# 'v'
    syn region texZone		start="\\begin{[vV]erbatim}"		end="\\end{[vV]erbatim}\|%stopzone\>"	contains=@Spell
    " listings package:
    syn region texZone		start="\\begin{lstlisting}"		end="\\end{lstlisting}\|%stopzone\>"	contains=@Spell
-   if version < 600
-    syn region texZone		start="\\verb\*\=`"			end="`\|%stopzone\>"			contains=@Spell
-    syn region texZone		start="\\verb\*\=#"			end="#\|%stopzone\>"			contains=@Spell
+   if b:tex_stylish
+    syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z@]\)"	end="\z1\|%stopzone\>"			contains=@Spell
    else
-     if b:tex_stylish
-      syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z@]\)"	end="\z1\|%stopzone\>"			contains=@Spell
-     else
-      syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z]\)"	end="\z1\|%stopzone\>"			contains=@Spell
-     endif
+    syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z]\)"	end="\z1\|%stopzone\>"			contains=@Spell
    endif
   else
    syn region texZone		start="\\begin{[vV]erbatim}"		end="\\end{[vV]erbatim}\|%stopzone\>"
-   if version < 600
-    syn region texZone		start="\\verb\*\=`"			end="`\|%stopzone\>"
-    syn region texZone		start="\\verb\*\=#"			end="#\|%stopzone\>"
+   if b:tex_stylish
+     syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z@]\)"	end="\z1\|%stopzone\>"
    else
-     if b:tex_stylish
-       syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z@]\)"	end="\z1\|%stopzone\>"
-     else
-       syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z]\)"	end="\z1\|%stopzone\>"
-     endif
+     syn region texZone		start="\\verb\*\=\z([^\ta-zA-Z]\)"	end="\z1\|%stopzone\>"
    endif
   endif
 endif
diff --git a/runtime/syntax/texinfo.vim b/runtime/syntax/texinfo.vim
--- a/runtime/syntax/texinfo.vim
+++ b/runtime/syntax/texinfo.vim
@@ -9,10 +9,8 @@
 " since @ can have special meanings, everything is 'match'-ed and 'region'-ed
 " (including @ in 'iskeyword' option has unexpected effects)
 
-" Remove any old syntax stuff hanging around, if needed
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -356,48 +354,39 @@ syn cluster texinfoReducedAll contains=t
 "==============================================================================
 " highlighting
 
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_texinfo_syn_inits")
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  if version < 508
-    let did_texinfo_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+HiLink texinfoSpecialChar	Special
+HiLink texinfoHFSpecialChar	Special
 
-  HiLink texinfoSpecialChar	Special
-  HiLink texinfoHFSpecialChar	Special
-
-  HiLink texinfoError		Error
-  HiLink texinfoIdent		Identifier
-  HiLink texinfoAssignment	Identifier
-  HiLink texinfoSinglePar	Identifier
-  HiLink texinfoIndexPar	Identifier
-  HiLink texinfoSIPar		Identifier
-  HiLink texinfoDIEPar		Identifier
-  HiLink texinfoTexCmd		PreProc
+HiLink texinfoError		Error
+HiLink texinfoIdent		Identifier
+HiLink texinfoAssignment	Identifier
+HiLink texinfoSinglePar	Identifier
+HiLink texinfoIndexPar	Identifier
+HiLink texinfoSIPar		Identifier
+HiLink texinfoDIEPar		Identifier
+HiLink texinfoTexCmd		PreProc
 
 
-  HiLink texinfoAtCmd		Statement	"@-command
-  HiLink texinfoPrmAtCmd	String		"@-command in one line with unknown nr. of parameters
-						"is String because is found as a region and is 'matchgroup'-ed
-						"to texinfoAtCmd
-  HiLink texinfoBrcPrmAtCmd	String		"@-command with parameter(s) in braces ({})
-						"is String because is found as a region and is 'matchgroup'-ed to texinfoAtCmd
-  HiLink texinfoMltlnAtCmdFLine  texinfoAtCmd	"repeated embedded First lines in @-commands
-  HiLink texinfoMltlnAtCmd	String		"@-command in multiple lines
-						"is String because is found as a region and is 'matchgroup'-ed to texinfoAtCmd
-  HiLink texinfoMltln2AtCmd	PreProc		"@-command in multiple lines (same as texinfoMltlnAtCmd, just with other colors)
-  HiLink texinfoMltlnDMAtCmd	PreProc		"@-command in multiple lines (same as texinfoMltlnAtCmd, just with other colors; used for @detailmenu, which can be included in @menu)
-  HiLink texinfoMltlnNAtCmd	Normal		"@-command in multiple lines (same as texinfoMltlnAtCmd, just with other colors)
-  HiLink texinfoThisAtCmd	Statement	"@-command used in headers and footers (@this... series)
+HiLink texinfoAtCmd		Statement	"@-command
+HiLink texinfoPrmAtCmd	String		"@-command in one line with unknown nr. of parameters
+					      "is String because is found as a region and is 'matchgroup'-ed
+					      "to texinfoAtCmd
+HiLink texinfoBrcPrmAtCmd	String		"@-command with parameter(s) in braces ({})
+					      "is String because is found as a region and is 'matchgroup'-ed to texinfoAtCmd
+HiLink texinfoMltlnAtCmdFLine  texinfoAtCmd	"repeated embedded First lines in @-commands
+HiLink texinfoMltlnAtCmd	String		"@-command in multiple lines
+					      "is String because is found as a region and is 'matchgroup'-ed to texinfoAtCmd
+HiLink texinfoMltln2AtCmd	PreProc		"@-command in multiple lines (same as texinfoMltlnAtCmd, just with other colors)
+HiLink texinfoMltlnDMAtCmd	PreProc		"@-command in multiple lines (same as texinfoMltlnAtCmd, just with other colors; used for @detailmenu, which can be included in @menu)
+HiLink texinfoMltlnNAtCmd	Normal		"@-command in multiple lines (same as texinfoMltlnAtCmd, just with other colors)
+HiLink texinfoThisAtCmd	Statement	"@-command used in headers and footers (@this... series)
 
-  HiLink texinfoComment	Comment
+HiLink texinfoComment	Comment
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "texinfo"
diff --git a/runtime/syntax/texmf.vim b/runtime/syntax/texmf.vim
--- a/runtime/syntax/texmf.vim
+++ b/runtime/syntax/texmf.vim
@@ -6,12 +6,9 @@
 " URL: http://physics.muni.cz/~yeti/download/syntax/texmf.vim
 
 " Setup
-if version >= 600
-  if exists("b:current_syntax")
-    finish
-  endif
-else
-  syntax clear
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+  finish
 endif
 
 syn case match
@@ -45,42 +42,35 @@ syn region texmfBrace matchgroup=texmfBr
 syn match texmfBraceError "}"
 
 " Define the default highlighting
-if version >= 508 || !exists("did_texmf_syntax_inits")
-  if version < 508
-    let did_texmf_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+command -nargs=+ HiLink hi def link <args>
+
+HiLink texmfComment Comment
+HiLink texmfTodo Todo
 
-  HiLink texmfComment Comment
-  HiLink texmfTodo Todo
+HiLink texmfPassedParameter texmfVariable
+HiLink texmfVariable Identifier
 
-  HiLink texmfPassedParameter texmfVariable
-  HiLink texmfVariable Identifier
-
-  HiLink texmfNumber Number
-  HiLink texmfString String
+HiLink texmfNumber Number
+HiLink texmfString String
 
-  HiLink texmfLHSStart texmfLHS
-  HiLink texmfLHSVariable texmfLHS
-  HiLink texmfLHSDot texmfLHS
-  HiLink texmfLHS Type
+HiLink texmfLHSStart texmfLHS
+HiLink texmfLHSVariable texmfLHS
+HiLink texmfLHSDot texmfLHS
+HiLink texmfLHS Type
 
-  HiLink texmfEquals Normal
+HiLink texmfEquals Normal
 
-  HiLink texmfBraceBrace texmfDelimiter
-  HiLink texmfComma texmfDelimiter
-  HiLink texmfColons texmfDelimiter
-  HiLink texmfDelimiter Preproc
+HiLink texmfBraceBrace texmfDelimiter
+HiLink texmfComma texmfDelimiter
+HiLink texmfColons texmfDelimiter
+HiLink texmfDelimiter Preproc
 
-  HiLink texmfDoubleExclam Statement
-  HiLink texmfSpecial Special
+HiLink texmfDoubleExclam Statement
+HiLink texmfSpecial Special
 
-  HiLink texmfBraceError texmfError
-  HiLink texmfError Error
+HiLink texmfBraceError texmfError
+HiLink texmfError Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "texmf"
diff --git a/runtime/syntax/tf.vim b/runtime/syntax/tf.vim
--- a/runtime/syntax/tf.vim
+++ b/runtime/syntax/tf.vim
@@ -9,11 +9,8 @@
 
 " Remove any old syntax stuff hanging around
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -161,44 +158,36 @@ else
 endif
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_tf_syn_inits")
-  if version < 508
-    let did_tf_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink tfComment		Comment
-  HiLink tfString		String
-  HiLink tfNumber		Number
-  HiLink tfFloat		Float
-  HiLink tfIdentifier		Identifier
-  HiLink tfVar			Identifier
-  HiLink tfWorld		Identifier
-  HiLink tfReadonly		Identifier
-  HiLink tfHook		Identifier
-  HiLink tfFunctions		Function
-  HiLink tfRepeat		Repeat
-  HiLink tfConditional		Conditional
-  HiLink tfLabel		Label
-  HiLink tfStatement		Statement
-  HiLink tfType		Type
-  HiLink tfInclude		Include
-  HiLink tfDefine		Define
-  HiLink tfSpecialChar		SpecialChar
-  HiLink tfSpecialCharEsc	SpecialChar
-  HiLink tfParentError		Error
-  HiLink tfTodo		Todo
-  HiLink tfEndCommand		Delimiter
-  HiLink tfJoinLines		Delimiter
-  HiLink tfOperator		Operator
-  HiLink tfRelation		Operator
+HiLink tfComment		Comment
+HiLink tfString		String
+HiLink tfNumber		Number
+HiLink tfFloat		Float
+HiLink tfIdentifier		Identifier
+HiLink tfVar			Identifier
+HiLink tfWorld		Identifier
+HiLink tfReadonly		Identifier
+HiLink tfHook		Identifier
+HiLink tfFunctions		Function
+HiLink tfRepeat		Repeat
+HiLink tfConditional		Conditional
+HiLink tfLabel		Label
+HiLink tfStatement		Statement
+HiLink tfType		Type
+HiLink tfInclude		Include
+HiLink tfDefine		Define
+HiLink tfSpecialChar		SpecialChar
+HiLink tfSpecialCharEsc	SpecialChar
+HiLink tfParentError		Error
+HiLink tfTodo		Todo
+HiLink tfEndCommand		Delimiter
+HiLink tfJoinLines		Delimiter
+HiLink tfOperator		Operator
+HiLink tfRelation		Operator
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "tf"
 
diff --git a/runtime/syntax/tli.vim b/runtime/syntax/tli.vim
--- a/runtime/syntax/tli.vim
+++ b/runtime/syntax/tli.vim
@@ -4,11 +4,8 @@
 " Last Change:	2001 May 10
 " Version:      1.0
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -44,27 +41,19 @@ syn match tliComment	"#.*"
 syn case match
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_tli_syntax_inits")
-  if version < 508
-    let did_tli_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink tliNumber	Number
-  HiLink tliString	String
-  HiLink tliComment	Comment
-  HiLink tliSpecial	SpecialChar
-  HiLink tliIdentifier Identifier
-  HiLink tliObject     Statement
-  HiLink tliField      Type
-  HiLink tliStyle      PreProc
+HiLink tliNumber	Number
+HiLink tliString	String
+HiLink tliComment	Comment
+HiLink tliSpecial	SpecialChar
+HiLink tliIdentifier Identifier
+HiLink tliObject     Statement
+HiLink tliField      Type
+HiLink tliStyle      PreProc
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "tli"
 
diff --git a/runtime/syntax/tpp.vim b/runtime/syntax/tpp.vim
--- a/runtime/syntax/tpp.vim
+++ b/runtime/syntax/tpp.vim
@@ -17,11 +17,8 @@
 " the latest version of this file.
 " SPAM is _NOT_ welcome - be ready to be reported!
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -51,11 +48,7 @@ syn region tppAbstractOption start="^--\
 
 if main_syntax != 'sh'
   " shell command
-  if version < 600
-    syn include @tppShExec <sfile>:p:h/sh.vim
-  else
-    syn include @tppShExec syntax/sh.vim
-  endif
+  syn include @tppShExec syntax/sh.vim
   unlet b:current_syntax
 
   syn region shExec matchgroup=tppPageLocalOptionKey start='^--exec *' keepend end='$' contains=@tppShExec
@@ -65,35 +58,27 @@ endif
 syn match tppComment "^--##.*$"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_tpp_syn_inits")
-  if version < 508
-    let did_tpp_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink tppAbstractOptionKey		Special
-  HiLink tppPageLocalOptionKey		Keyword
-  HiLink tppPageLocalSwitchKey		Keyword
-  HiLink tppColorOptionKey		Keyword
-  HiLink tppTimeOptionKey		Comment
-  HiLink tppNewPageOptionKey		PreProc
-  HiLink tppString			String
-  HiLink tppColor			String
-  HiLink tppTime			Number
-  HiLink tppComment			Comment
-  HiLink tppAbstractOption		Error
-  HiLink tppPageLocalOption		Error
-  HiLink tppPageLocalSwitch		Error
-  HiLink tppColorOption			Error
-  HiLink tppNewPageOption		Error
-  HiLink tppTimeOption			Error
+HiLink tppAbstractOptionKey		Special
+HiLink tppPageLocalOptionKey		Keyword
+HiLink tppPageLocalSwitchKey		Keyword
+HiLink tppColorOptionKey		Keyword
+HiLink tppTimeOptionKey		Comment
+HiLink tppNewPageOptionKey		PreProc
+HiLink tppString			String
+HiLink tppColor			String
+HiLink tppTime			Number
+HiLink tppComment			Comment
+HiLink tppAbstractOption		Error
+HiLink tppPageLocalOption		Error
+HiLink tppPageLocalSwitch		Error
+HiLink tppColorOption			Error
+HiLink tppNewPageOption		Error
+HiLink tppTimeOption			Error
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "tpp"
 
diff --git a/runtime/syntax/trasys.vim b/runtime/syntax/trasys.vim
--- a/runtime/syntax/trasys.vim
+++ b/runtime/syntax/trasys.vim
@@ -8,11 +8,8 @@
 
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -21,11 +18,7 @@ endif
 let fortran_free_source=1
 
 " Load FORTRAN syntax file
-if version < 600
-  source <sfile>:p:h/fortran.vim
-else
-  runtime! syntax/fortran.vim
-endif
+runtime! syntax/fortran.vim
 unlet b:current_syntax
 
 
@@ -136,40 +129,32 @@ syn sync match trasysSync grouphere tras
 
 
 " Define the default highlighting
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_trasys_syntax_inits")
-  if version < 508
-    let did_trasys_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink trasysOptions		Special
-  HiLink trasysSurface		Special
-  HiLink trasysSurfaceType	Constant
-  HiLink trasysSurfaceArgs	Constant
-  HiLink trasysArgs		Constant
-  HiLink trasysOperations	Statement
-  HiLink trasysSubRoutine	Statement
-  HiLink trassyPrcsrSegm	PreProc
-  HiLink trasysIdentifier	Identifier
-  HiLink trasysComment		Comment
-  HiLink trasysHeader		Typedef
-  HiLink trasysMacro		Macro
-  HiLink trasysInteger		Number
-  HiLink trasysFloat		Float
-  HiLink trasysScientific	Float
+HiLink trasysOptions		Special
+HiLink trasysSurface		Special
+HiLink trasysSurfaceType	Constant
+HiLink trasysSurfaceArgs	Constant
+HiLink trasysArgs		Constant
+HiLink trasysOperations	Statement
+HiLink trasysSubRoutine	Statement
+HiLink trassyPrcsrSegm	PreProc
+HiLink trasysIdentifier	Identifier
+HiLink trasysComment		Comment
+HiLink trasysHeader		Typedef
+HiLink trasysMacro		Macro
+HiLink trasysInteger		Number
+HiLink trasysFloat		Float
+HiLink trasysScientific	Float
 
-  HiLink trasysBlank		SpecialChar
+HiLink trasysBlank		SpecialChar
 
-  HiLink trasysEndData		Macro
+HiLink trasysEndData		Macro
 
-  HiLink trasysTodo		Todo
+HiLink trasysTodo		Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "trasys"
diff --git a/runtime/syntax/trustees.vim b/runtime/syntax/trustees.vim
--- a/runtime/syntax/trustees.vim
+++ b/runtime/syntax/trustees.vim
@@ -3,9 +3,8 @@
 " Maintainer:   Nima Talebi <nima@it.net.au>
 " Last Change:  2005-10-12
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
diff --git a/runtime/syntax/tsalt.vim b/runtime/syntax/tsalt.vim
--- a/runtime/syntax/tsalt.vim
+++ b/runtime/syntax/tsalt.vim
@@ -4,11 +4,8 @@
 " Last Change:	2012 Feb 03 by Thilo Six
 " Version Info: @(#)tsalt.vim	1.5	97/12/16 08:11:15
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -171,46 +168,38 @@ syn sync ccomment tsaltComment
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_tsalt_syntax_inits")
-  if version < 508
-    let did_tsalt_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink tsaltFunction		Statement
-	HiLink tsaltSysVar		Type
-	"HiLink tsaltLibFunc		UserDefFunc
-	"HiLink tsaltConstants		Type
-	"HiLink tsaltFuncArg		Type
-	"HiLink tsaltOperator		Operator
-	"HiLink tsaltLabel		Label
-	"HiLink tsaltUserLabel		Label
-	HiLink tsaltConditional		Conditional
-	HiLink tsaltRepeat		Repeat
-	HiLink tsaltCharacter		SpecialChar
-	HiLink tsaltSpecialCharacter	SpecialChar
-	HiLink tsaltNumber		Number
-	HiLink tsaltFloat		Float
-	HiLink tsaltCommentError	tsaltError
-	HiLink tsaltInclude		Include
-	HiLink tsaltPreProc		PreProc
-	HiLink tsaltDefine		Macro
-	HiLink tsaltIncluded		tsaltString
-	HiLink tsaltError		Error
-	HiLink tsaltStatement		Statement
-	HiLink tsaltPreCondit		PreCondit
-	HiLink tsaltType		Type
-	HiLink tsaltString		String
-	HiLink tsaltComment		Comment
-	HiLink tsaltSpecial		Special
-	HiLink tsaltTodo		Todo
+HiLink tsaltFunction		Statement
+HiLink tsaltSysVar		Type
+"HiLink tsaltLibFunc		UserDefFunc
+"HiLink tsaltConstants		Type
+"HiLink tsaltFuncArg		Type
+"HiLink tsaltOperator		Operator
+"HiLink tsaltLabel		Label
+"HiLink tsaltUserLabel		Label
+HiLink tsaltConditional		Conditional
+HiLink tsaltRepeat		Repeat
+HiLink tsaltCharacter		SpecialChar
+HiLink tsaltSpecialCharacter	SpecialChar
+HiLink tsaltNumber		Number
+HiLink tsaltFloat		Float
+HiLink tsaltCommentError	tsaltError
+HiLink tsaltInclude		Include
+HiLink tsaltPreProc		PreProc
+HiLink tsaltDefine		Macro
+HiLink tsaltIncluded		tsaltString
+HiLink tsaltError		Error
+HiLink tsaltStatement		Statement
+HiLink tsaltPreCondit		PreCondit
+HiLink tsaltType		Type
+HiLink tsaltString		String
+HiLink tsaltComment		Comment
+HiLink tsaltSpecial		Special
+HiLink tsaltTodo		Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "tsalt"
 
diff --git a/runtime/syntax/tsscl.vim b/runtime/syntax/tsscl.vim
--- a/runtime/syntax/tsscl.vim
+++ b/runtime/syntax/tsscl.vim
@@ -8,11 +8,8 @@
 
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -179,37 +176,29 @@ syn match  tssclScientific  "-\=\<[0-9]*
 
 
 " Define the default highlighting
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_tsscl_syntax_inits")
-  if version < 508
-    let did_tsscl_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink tssclCommand		Statement
-  HiLink tssclKeyword		Special
-  HiLink tssclEnd		Macro
-  HiLink tssclUnits		Special
+HiLink tssclCommand		Statement
+HiLink tssclKeyword		Special
+HiLink tssclEnd		Macro
+HiLink tssclUnits		Special
 
-  HiLink tssclComment		Comment
-  HiLink tssclDirective		Statement
-  HiLink tssclConditional	Conditional
-  HiLink tssclContChar		Macro
-  HiLink tssclQualifier		Typedef
-  HiLink tssclSymbol		Identifier
-  HiLink tssclSymbol2		Symbol
-  HiLink tssclString		String
-  HiLink tssclOper		Operator
+HiLink tssclComment		Comment
+HiLink tssclDirective		Statement
+HiLink tssclConditional	Conditional
+HiLink tssclContChar		Macro
+HiLink tssclQualifier		Typedef
+HiLink tssclSymbol		Identifier
+HiLink tssclSymbol2		Symbol
+HiLink tssclString		String
+HiLink tssclOper		Operator
 
-  HiLink tssclInteger		Number
-  HiLink tssclFloat		Number
-  HiLink tssclScientific	Number
+HiLink tssclInteger		Number
+HiLink tssclFloat		Number
+HiLink tssclScientific	Number
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "tsscl"
diff --git a/runtime/syntax/tssgm.vim b/runtime/syntax/tssgm.vim
--- a/runtime/syntax/tssgm.vim
+++ b/runtime/syntax/tssgm.vim
@@ -8,11 +8,8 @@
 
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -75,35 +72,27 @@ syn match  tssgmScientific  "-\=\<[0-9]*
 
 
 " Define the default highlighting
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_tssgm_syntax_inits")
-  if version < 508
-    let did_tssgm_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink tssgmParam		Statement
+HiLink tssgmSurfType		Type
+HiLink tssgmArgs		Special
+HiLink tssgmDelim		Typedef
+HiLink tssgmEnd		Macro
+HiLink tssgmUnits		Special
 
-  HiLink tssgmParam		Statement
-  HiLink tssgmSurfType		Type
-  HiLink tssgmArgs		Special
-  HiLink tssgmDelim		Typedef
-  HiLink tssgmEnd		Macro
-  HiLink tssgmUnits		Special
+HiLink tssgmDefault		SpecialComment
+HiLink tssgmComment		Statement
+HiLink tssgmCommentString	Comment
+HiLink tssgmSurfIdent		Identifier
+HiLink tssgmString		Delimiter
 
-  HiLink tssgmDefault		SpecialComment
-  HiLink tssgmComment		Statement
-  HiLink tssgmCommentString	Comment
-  HiLink tssgmSurfIdent		Identifier
-  HiLink tssgmString		Delimiter
+HiLink tssgmInteger		Number
+HiLink tssgmFloat		Float
+HiLink tssgmScientific	Float
 
-  HiLink tssgmInteger		Number
-  HiLink tssgmFloat		Float
-  HiLink tssgmScientific	Float
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "tssgm"
diff --git a/runtime/syntax/tssop.vim b/runtime/syntax/tssop.vim
--- a/runtime/syntax/tssop.vim
+++ b/runtime/syntax/tssop.vim
@@ -8,11 +8,8 @@
 
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -56,30 +53,22 @@ syn match  tssopScientific  "-\=\<[0-9]*
 
 
 " Define the default highlighting
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_tssop_syntax_inits")
-  if version < 508
-    let did_tssop_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink tssopParam		Statement
+HiLink tssopProp		Identifier
+HiLink tssopArgs		Special
 
-  HiLink tssopParam		Statement
-  HiLink tssopProp		Identifier
-  HiLink tssopArgs		Special
+HiLink tssopComment		Statement
+HiLink tssopCommentString	Comment
+HiLink tssopPropName		Typedef
 
-  HiLink tssopComment		Statement
-  HiLink tssopCommentString	Comment
-  HiLink tssopPropName		Typedef
+HiLink tssopInteger		Number
+HiLink tssopFloat		Float
+HiLink tssopScientific	Float
 
-  HiLink tssopInteger		Number
-  HiLink tssopFloat		Float
-  HiLink tssopScientific	Float
-
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "tssop"
diff --git a/runtime/syntax/uc.vim b/runtime/syntax/uc.vim
--- a/runtime/syntax/uc.vim
+++ b/runtime/syntax/uc.vim
@@ -7,11 +7,8 @@
 
 " Please check :help uc.vim for comments on some of the options available.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -110,64 +107,56 @@ endif
 exec "syn sync ccomment ucComment minlines=" . uc_minlines
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_uc_syntax_inits")
-  if version < 508
-    let did_uc_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink ucFuncDef			Conditional
-  HiLink ucEventDef			Conditional
-  HiLink ucBraces			Function
-  HiLink ucBranch			Conditional
-  HiLink ucLabel			Label
-  HiLink ucUserLabel			Label
-  HiLink ucConditional			Conditional
-  HiLink ucRepeat			Repeat
-  HiLink ucStorageClass			StorageClass
-  HiLink ucMethodDecl			ucStorageClass
-  HiLink ucClassDecl			ucStorageClass
-  HiLink ucScopeDecl			ucStorageClass
-  HiLink ucBoolean			Boolean
-  HiLink ucSpecial			Special
-  HiLink ucSpecialError			Error
-  HiLink ucSpecialCharError		Error
-  HiLink ucString			String
-  HiLink ucCharacter			Character
-  HiLink ucSpecialChar			SpecialChar
-  HiLink ucNumber			Number
-  HiLink ucError			Error
-  HiLink ucStringError			Error
-  HiLink ucStatement			Statement
-  HiLink ucOperator			Operator
-  HiLink ucOverLoaded			Operator
-  HiLink ucComment			Comment
-  HiLink ucDocComment			Comment
-  HiLink ucLineComment			Comment
-  HiLink ucConstant			ucBoolean
-  HiLink ucTypedef			Typedef
-  HiLink ucTodo				Todo
+HiLink ucFuncDef			Conditional
+HiLink ucEventDef			Conditional
+HiLink ucBraces			Function
+HiLink ucBranch			Conditional
+HiLink ucLabel			Label
+HiLink ucUserLabel			Label
+HiLink ucConditional			Conditional
+HiLink ucRepeat			Repeat
+HiLink ucStorageClass			StorageClass
+HiLink ucMethodDecl			ucStorageClass
+HiLink ucClassDecl			ucStorageClass
+HiLink ucScopeDecl			ucStorageClass
+HiLink ucBoolean			Boolean
+HiLink ucSpecial			Special
+HiLink ucSpecialError			Error
+HiLink ucSpecialCharError		Error
+HiLink ucString			String
+HiLink ucCharacter			Character
+HiLink ucSpecialChar			SpecialChar
+HiLink ucNumber			Number
+HiLink ucError			Error
+HiLink ucStringError			Error
+HiLink ucStatement			Statement
+HiLink ucOperator			Operator
+HiLink ucOverLoaded			Operator
+HiLink ucComment			Comment
+HiLink ucDocComment			Comment
+HiLink ucLineComment			Comment
+HiLink ucConstant			ucBoolean
+HiLink ucTypedef			Typedef
+HiLink ucTodo				Todo
 
-  HiLink ucCommentTitle			SpecialComment
-  HiLink ucDocTags			Special
-  HiLink ucDocParam			Function
-  HiLink ucCommentStar			ucComment
+HiLink ucCommentTitle			SpecialComment
+HiLink ucDocTags			Special
+HiLink ucDocParam			Function
+HiLink ucCommentStar			ucComment
 
-  HiLink ucType				Type
-  HiLink ucExternal			Include
+HiLink ucType				Type
+HiLink ucExternal			Include
 
-  HiLink ucClassKeys			Conditional
-  HiLink ucClassLabel			Conditional
+HiLink ucClassKeys			Conditional
+HiLink ucClassLabel			Conditional
 
-  HiLink htmlComment			Special
-  HiLink htmlCommentPart		Special
+HiLink htmlComment			Special
+HiLink htmlCommentPart		Special
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "uc"
 
diff --git a/runtime/syntax/uil.vim b/runtime/syntax/uil.vim
--- a/runtime/syntax/uil.vim
+++ b/runtime/syntax/uil.vim
@@ -4,10 +4,8 @@
 " Last Change:	2013 May 23
 " URL:		http://gott-gehabt.de/800_wer_wir_sind/thomas/Homepage/Computer/vim/syntax/uil.vim
 
-" Quit when a syntax file was already loaded
-if version < 600
-   syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -47,37 +45,29 @@ syn region uilDefine		start="^#\s*\(defi
 syn sync ccomment uilComment
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_uil_syn_inits")
-  if version < 508
-    let did_uil_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default highlighting.
-  HiLink uilCharacter		uilString
-  HiLink uilSpecialCharacter	uilSpecial
-  HiLink uilNumber		uilString
-  HiLink uilCommentError	uilError
-  HiLink uilInclude		uilPreCondit
-  HiLink uilDefine		uilPreCondit
-  HiLink uilIncluded		uilString
-  HiLink uilSpecialFunction	uilRessource
-  HiLink uilRessource		Identifier
-  HiLink uilSpecialStatement	Keyword
-  HiLink uilError		Error
-  HiLink uilPreCondit		PreCondit
-  HiLink uilType		Type
-  HiLink uilString		String
-  HiLink uilComment		Comment
-  HiLink uilSpecial		Special
-  HiLink uilTodo		Todo
+" The default highlighting.
+HiLink uilCharacter		uilString
+HiLink uilSpecialCharacter	uilSpecial
+HiLink uilNumber		uilString
+HiLink uilCommentError	uilError
+HiLink uilInclude		uilPreCondit
+HiLink uilDefine		uilPreCondit
+HiLink uilIncluded		uilString
+HiLink uilSpecialFunction	uilRessource
+HiLink uilRessource		Identifier
+HiLink uilSpecialStatement	Keyword
+HiLink uilError		Error
+HiLink uilPreCondit		PreCondit
+HiLink uilType		Type
+HiLink uilString		String
+HiLink uilComment		Comment
+HiLink uilSpecial		Special
+HiLink uilTodo		Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 
 let b:current_syntax = "uil"
diff --git a/runtime/syntax/upstart.vim b/runtime/syntax/upstart.vim
--- a/runtime/syntax/upstart.vim
+++ b/runtime/syntax/upstart.vim
@@ -10,9 +10,8 @@
 " It is inspired by the initng syntax file and includes sh.vim to do the
 " highlighting of script blocks.
 
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
diff --git a/runtime/syntax/vb.vim b/runtime/syntax/vb.vim
--- a/runtime/syntax/vb.vim
+++ b/runtime/syntax/vb.vim
@@ -11,11 +11,8 @@
 " VIM and VIM-DEV mailing lists.  It is by no means complete.
 " Send comments, suggestions and requests to the maintainer.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-	syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
@@ -338,40 +335,32 @@ syn match   vbTypeSpecifier  "[a-zA-Z0-9
 syn match   vbTypeSpecifier  "#[a-zA-Z0-9]"me=e-1
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_vb_syntax_inits")
-	if version < 508
-		let did_vb_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-	HiLink vbBoolean		Boolean
-	HiLink vbLineNumber		Comment
-	HiLink vbComment		Comment
-	HiLink vbConditional	Conditional
-	HiLink vbConst			Constant
-	HiLink vbDefine			Constant
-	HiLink vbError			Error
-	HiLink vbFunction		Identifier
-	HiLink vbIdentifier		Identifier
-	HiLink vbNumber			Number
-	HiLink vbFloat			Float
-	HiLink vbMethods		PreProc
-	HiLink vbOperator		Operator
-	HiLink vbRepeat			Repeat
-	HiLink vbString			String
-	HiLink vbStatement		Statement
-	HiLink vbKeyword		Statement
-	HiLink vbEvents			Special
-	HiLink vbTodo			Todo
-	HiLink vbTypes			Type
-	HiLink vbTypeSpecifier	Type
+HiLink vbBoolean		Boolean
+HiLink vbLineNumber		Comment
+HiLink vbComment		Comment
+HiLink vbConditional	Conditional
+HiLink vbConst			Constant
+HiLink vbDefine			Constant
+HiLink vbError			Error
+HiLink vbFunction		Identifier
+HiLink vbIdentifier		Identifier
+HiLink vbNumber			Number
+HiLink vbFloat			Float
+HiLink vbMethods		PreProc
+HiLink vbOperator		Operator
+HiLink vbRepeat			Repeat
+HiLink vbString			String
+HiLink vbStatement		Statement
+HiLink vbKeyword		Statement
+HiLink vbEvents			Special
+HiLink vbTodo			Todo
+HiLink vbTypes			Type
+HiLink vbTypeSpecifier	Type
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "vb"
 
diff --git a/runtime/syntax/vera.vim b/runtime/syntax/vera.vim
--- a/runtime/syntax/vera.vim
+++ b/runtime/syntax/vera.vim
@@ -10,11 +10,8 @@
 
 " (change the value for guibg to any color you like)
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -287,74 +284,66 @@ endif
 exec "syn sync ccomment veraComment minlines=" . b:vera_minlines
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_vera_syn_inits")
-  if version < 508
-    let did_vera_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink veraClass		Identifier
-  HiLink veraObject		Identifier
-  HiLink veraUserMethod		Function
-  HiLink veraTask		Keyword
-  HiLink veraModifier		Tag
-  HiLink veraDeprecated		veraError
-  HiLink veraMethods		Statement
-  " HiLink veraInterface		Label
-  HiLink veraInterface		Function
+HiLink veraClass		Identifier
+HiLink veraObject		Identifier
+HiLink veraUserMethod		Function
+HiLink veraTask		Keyword
+HiLink veraModifier		Tag
+HiLink veraDeprecated		veraError
+HiLink veraMethods		Statement
+" HiLink veraInterface		Label
+HiLink veraInterface		Function
 
-  HiLink veraFormat		veraSpecial
-  HiLink veraCppString		veraString
-  HiLink veraCommentL		veraComment
-  HiLink veraCommentStart		veraComment
-  HiLink veraLabel			Label
-  HiLink veraUserLabel		Label
-  HiLink veraConditional		Conditional
-  HiLink veraRepeat		Repeat
-  HiLink veraCharacter		Character
-  HiLink veraSpecialCharacter	veraSpecial
-  HiLink veraNumber		Number
-  HiLink veraOctal			Number
-  HiLink veraOctalZero		PreProc	 " link this to Error if you want
-  HiLink veraFloat			Float
-  HiLink veraOctalError		veraError
-  HiLink veraParenError		veraError
-  HiLink veraErrInParen		veraError
-  HiLink veraErrInBracket		veraError
-  HiLink veraCommentError		veraError
-  HiLink veraCommentStartError	veraError
-  HiLink veraSpaceError         SpaceError
-  HiLink veraSpecialError		veraError
-  HiLink veraOperator		Operator
-  HiLink veraStructure		Structure
-  HiLink veraInclude		Include
-  HiLink veraPreProc		PreProc
-  HiLink veraDefine		Macro
-  HiLink veraIncluded		veraString
-  HiLink veraError			Error
-  HiLink veraStatement		Statement
-  HiLink veraPreCondit		PreCondit
-  HiLink veraType			Type
-  " HiLink veraConstant		Constant
-  HiLink veraConstant		Keyword
-  HiLink veraUserConstant		Constant
-  HiLink veraCommentString		veraString
-  HiLink veraComment2String	veraString
-  HiLink veraCommentSkip		veraComment
-  HiLink veraString		String
-  HiLink veraComment		Comment
-  HiLink veraSpecial		SpecialChar
-  HiLink veraTodo			Todo
-  HiLink veraCppSkip		veraCppOut
-  HiLink veraCppOut2		veraCppOut
-  HiLink veraCppOut		Comment
+HiLink veraFormat		veraSpecial
+HiLink veraCppString		veraString
+HiLink veraCommentL		veraComment
+HiLink veraCommentStart		veraComment
+HiLink veraLabel			Label
+HiLink veraUserLabel		Label
+HiLink veraConditional		Conditional
+HiLink veraRepeat		Repeat
+HiLink veraCharacter		Character
+HiLink veraSpecialCharacter	veraSpecial
+HiLink veraNumber		Number
+HiLink veraOctal			Number
+HiLink veraOctalZero		PreProc	 " link this to Error if you want
+HiLink veraFloat			Float
+HiLink veraOctalError		veraError
+HiLink veraParenError		veraError
+HiLink veraErrInParen		veraError
+HiLink veraErrInBracket		veraError
+HiLink veraCommentError		veraError
+HiLink veraCommentStartError	veraError
+HiLink veraSpaceError         SpaceError
+HiLink veraSpecialError		veraError
+HiLink veraOperator		Operator
+HiLink veraStructure		Structure
+HiLink veraInclude		Include
+HiLink veraPreProc		PreProc
+HiLink veraDefine		Macro
+HiLink veraIncluded		veraString
+HiLink veraError			Error
+HiLink veraStatement		Statement
+HiLink veraPreCondit		PreCondit
+HiLink veraType			Type
+" HiLink veraConstant		Constant
+HiLink veraConstant		Keyword
+HiLink veraUserConstant		Constant
+HiLink veraCommentString		veraString
+HiLink veraComment2String	veraString
+HiLink veraCommentSkip		veraComment
+HiLink veraString		String
+HiLink veraComment		Comment
+HiLink veraSpecial		SpecialChar
+HiLink veraTodo			Todo
+HiLink veraCppSkip		veraCppOut
+HiLink veraCppOut2		veraCppOut
+HiLink veraCppOut		Comment
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "vera"
 
diff --git a/runtime/syntax/verilog.vim b/runtime/syntax/verilog.vim
--- a/runtime/syntax/verilog.vim
+++ b/runtime/syntax/verilog.vim
@@ -3,22 +3,15 @@
 " Maintainer:	Mun Johl <Mun.Johl@emulex.com>
 " Last Update:  Wed Jul 20 16:04:19 PDT 2011
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-   syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
    finish
 endif
 
 " Set the local value of the 'iskeyword' option.
 " NOTE: '?' was added so that verilogNumber would be processed correctly when
 "       '?' is the last character of the number.
-if version >= 600
-   setlocal iskeyword=@,48-57,63,_,192-255
-else
-   set iskeyword=@,48-57,63,_,192-255
-endif
+setlocal iskeyword=@,48-57,63,_,192-255
 
 " A bunch of useful Verilog keywords
 
@@ -102,34 +95,26 @@ syn region  verilogDirective   start="//
 syn sync minlines=50
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_verilog_syn_inits")
-   if version < 508
-      let did_verilog_syn_inits = 1
-      command -nargs=+ HiLink hi link <args>
-   else
-      command -nargs=+ HiLink hi def link <args>
-   endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-   " The default highlighting.
-   HiLink verilogCharacter       Character
-   HiLink verilogConditional     Conditional
-   HiLink verilogRepeat          Repeat
-   HiLink verilogString          String
-   HiLink verilogTodo            Todo
-   HiLink verilogComment         Comment
-   HiLink verilogConstant        Constant
-   HiLink verilogLabel           Label
-   HiLink verilogNumber          Number
-   HiLink verilogOperator        Special
-   HiLink verilogStatement       Statement
-   HiLink verilogGlobal          Define
-   HiLink verilogDirective       SpecialComment
-   HiLink verilogEscape		 Special
+" The default highlighting.
+HiLink verilogCharacter       Character
+HiLink verilogConditional     Conditional
+HiLink verilogRepeat          Repeat
+HiLink verilogString          String
+HiLink verilogTodo            Todo
+HiLink verilogComment         Comment
+HiLink verilogConstant        Constant
+HiLink verilogLabel           Label
+HiLink verilogNumber          Number
+HiLink verilogOperator        Special
+HiLink verilogStatement       Statement
+HiLink verilogGlobal          Define
+HiLink verilogDirective       SpecialComment
+HiLink verilogEscape		 Special
 
-   delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "verilog"
 
diff --git a/runtime/syntax/verilogams.vim b/runtime/syntax/verilogams.vim
--- a/runtime/syntax/verilogams.vim
+++ b/runtime/syntax/verilogams.vim
@@ -9,20 +9,13 @@
 "              Minor reserved keyword updates.
 " Last Update: Thursday September 15 15:36:03 CST 2005 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-   syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
    finish
 endif
 
 " Set the local value of the 'iskeyword' option
-if version >= 600
-   setlocal iskeyword=@,48-57,_,192-255
-else
-   set iskeyword=@,48-57,_,192-255
-endif
+setlocal iskeyword=@,48-57,_,192-255
 
 " Annex B.1 'All keywords'
 syn keyword verilogamsStatement above abs absdelay acos acosh ac_stim
@@ -113,36 +106,28 @@ syn match   verilogamsEscape "\\\o\o\=\o
 syn sync lines=50
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_verilogams_syn_inits")
-   if version < 508
-      let did_verilogams_syn_inits = 1
-      command -nargs=+ HiLink hi link <args>
-   else
-      command -nargs=+ HiLink hi def link <args>
-   endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-   " The default highlighting.
-   HiLink verilogamsCharacter    Character
-   HiLink verilogamsConditional  Conditional
-   HiLink verilogamsRepeat       Repeat
-   HiLink verilogamsString       String
-   HiLink verilogamsTodo         Todo
-   HiLink verilogamsComment      Comment
-   HiLink verilogamsConstant     Constant
-   HiLink verilogamsLabel        Label
-   HiLink verilogamsNumber       Number
-   HiLink verilogamsOperator     Special
-   HiLink verilogamsStatement    Statement
-   HiLink verilogamsGlobal       Define
-   HiLink verilogamsDirective    SpecialComment
-   HiLink verilogamsEscape       Special
-   HiLink verilogamsType         Type
-   HiLink verilogamsSystask      Function
+" The default highlighting.
+HiLink verilogamsCharacter    Character
+HiLink verilogamsConditional  Conditional
+HiLink verilogamsRepeat       Repeat
+HiLink verilogamsString       String
+HiLink verilogamsTodo         Todo
+HiLink verilogamsComment      Comment
+HiLink verilogamsConstant     Constant
+HiLink verilogamsLabel        Label
+HiLink verilogamsNumber       Number
+HiLink verilogamsOperator     Special
+HiLink verilogamsStatement    Statement
+HiLink verilogamsGlobal       Define
+HiLink verilogamsDirective    SpecialComment
+HiLink verilogamsEscape       Special
+HiLink verilogamsType         Type
+HiLink verilogamsSystask      Function
 
-   delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "verilogams"
 
diff --git a/runtime/syntax/vhdl.vim b/runtime/syntax/vhdl.vim
--- a/runtime/syntax/vhdl.vim
+++ b/runtime/syntax/vhdl.vim
@@ -5,9 +5,8 @@
 " Credits:		Stephan Hegel <stephan.hegel@snc.siemens.com.cn>
 " Last Changed:		2016 Mar 05 by Daniel Kho
 
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -234,35 +233,27 @@ syn match	vhdlPreProc	"\(^\|\s\)--\s*syn
 syn sync	minlines=600
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_vhdl_syntax_inits")
-    if version < 508
-	let did_vhdl_syntax_inits = 1
-	command -nargs=+ HiLink hi link <args>
-    else
-	command -nargs=+ HiLink hi def link <args>
-    endif
-    
-    HiLink	vhdlSpecial	Special
-    HiLink	vhdlStatement   Statement
-    HiLink	vhdlCharacter   Character
-    HiLink	vhdlString	String
-    HiLink	vhdlVector	Number
-    HiLink	vhdlBoolean	Number
-    HiLink	vhdlTodo	Todo
-    HiLink	vhdlFixme	Fixme
-    HiLink	vhdlComment	Comment
-    HiLink	vhdlNumber	Number
-    HiLink	vhdlTime	Number
-    HiLink	vhdlType	Type
-    HiLink	vhdlOperator    Operator
-    HiLink	vhdlError	Error
-    HiLink	vhdlAttribute   Special
-    HiLink	vhdlPreProc	PreProc
-    
-    delcommand HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+
+HiLink	vhdlSpecial	Special
+HiLink	vhdlStatement   Statement
+HiLink	vhdlCharacter   Character
+HiLink	vhdlString	String
+HiLink	vhdlVector	Number
+HiLink	vhdlBoolean	Number
+HiLink	vhdlTodo	Todo
+HiLink	vhdlFixme	Fixme
+HiLink	vhdlComment	Comment
+HiLink	vhdlNumber	Number
+HiLink	vhdlTime	Number
+HiLink	vhdlType	Type
+HiLink	vhdlOperator    Operator
+HiLink	vhdlError	Error
+HiLink	vhdlAttribute   Special
+HiLink	vhdlPreProc	PreProc
+
+delcommand HiLink
 
 let b:current_syntax = "vhdl"
 
diff --git a/runtime/syntax/virata.vim b/runtime/syntax/virata.vim
--- a/runtime/syntax/virata.vim
+++ b/runtime/syntax/virata.vim
@@ -13,10 +13,8 @@
 
 
 " Setup Syntax:
-if version < 600
-  "  Clear old syntax settings
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 "  Virata syntax is case insensitive (mostly)
@@ -156,63 +154,55 @@ syn sync minlines=50		"for multiple regi
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later  : only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_virata_syntax_inits")
-  if version < 508
-    let did_virata_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " Sub Links:
-  HiLink virataDefSubstError	virataPreProcError
-  HiLink virataDefSubst		virataPreProc
-  HiLink virataInAlter		virataOperator
-  HiLink virataInExec		virataOperator
-  HiLink virataInExport		virataOperator
-  HiLink virataInImport		virataOperator
-  HiLink virataInInstance	virataOperator
-  HiLink virataInMake		virataOperator
-  HiLink virataInModule		virataOperator
-  HiLink virataInProcess	virataOperator
-  HiLink virataInMacAddr	virataHexNumber
+" Sub Links:
+HiLink virataDefSubstError	virataPreProcError
+HiLink virataDefSubst		virataPreProc
+HiLink virataInAlter		virataOperator
+HiLink virataInExec		virataOperator
+HiLink virataInExport		virataOperator
+HiLink virataInImport		virataOperator
+HiLink virataInInstance	virataOperator
+HiLink virataInMake		virataOperator
+HiLink virataInModule		virataOperator
+HiLink virataInProcess	virataOperator
+HiLink virataInMacAddr	virataHexNumber
 
-  " Comment Group:
-  HiLink virataComment		Comment
-  HiLink virataSpclComment	SpecialComment
-  HiLink virataInCommentTodo	Todo
+" Comment Group:
+HiLink virataComment		Comment
+HiLink virataSpclComment	SpecialComment
+HiLink virataInCommentTodo	Todo
 
-  " Constant Group:
-  HiLink virataString		String
-  HiLink virataStringError	Error
-  HiLink virataCharacter	Character
-  HiLink virataSpclChar		Special
-  HiLink virataDecNumber	Number
-  HiLink virataHexNumber	Number
-  HiLink virataSizeNumber	Number
-  HiLink virataNumberError	Error
+" Constant Group:
+HiLink virataString		String
+HiLink virataStringError	Error
+HiLink virataCharacter	Character
+HiLink virataSpclChar		Special
+HiLink virataDecNumber	Number
+HiLink virataHexNumber	Number
+HiLink virataSizeNumber	Number
+HiLink virataNumberError	Error
 
-  " Identifier Group:
-  HiLink virataIdentError	Error
+" Identifier Group:
+HiLink virataIdentError	Error
 
-  " PreProc Group:
-  HiLink virataPreProc		PreProc
-  HiLink virataDefine		Define
-  HiLink virataInclude		Include
-  HiLink virataPreCondit	PreCondit
-  HiLink virataPreProcError	Error
-  HiLink virataPreProcWarn	Todo
+" PreProc Group:
+HiLink virataPreProc		PreProc
+HiLink virataDefine		Define
+HiLink virataInclude		Include
+HiLink virataPreCondit	PreCondit
+HiLink virataPreProcError	Error
+HiLink virataPreProcWarn	Todo
 
-  " Directive Group:
-  HiLink virataStatement	Statement
-  HiLink virataCfgStatement	Statement
-  HiLink virataOperator		Operator
-  HiLink virataDirective	Keyword
+" Directive Group:
+HiLink virataStatement	Statement
+HiLink virataCfgStatement	Statement
+HiLink virataOperator		Operator
+HiLink virataDirective	Keyword
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "virata"
 
diff --git a/runtime/syntax/vmasm.vim b/runtime/syntax/vmasm.vim
--- a/runtime/syntax/vmasm.vim
+++ b/runtime/syntax/vmasm.vim
@@ -6,11 +6,8 @@
 " This is incomplete. Feel free to contribute...
 "
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -196,55 +193,47 @@ syn match vmasmDirective	"\.\(signed_\)\
 syn case match
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_macro_syntax_inits")
-  if version < 508
-    let did_macro_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  " The default methods for highlighting.  Can be overridden later
-  " Comment Constant Error Identifier PreProc Special Statement Todo Type
-  "
-  " Constant		Boolean Character Number String
-  " Identifier		Function
-  " PreProc		Define Include Macro PreCondit
-  " Special		Debug Delimiter SpecialChar SpecialComment Tag
-  " Statement		Conditional Exception Keyword Label Operator Repeat
-  " Type		StorageClass Structure Typedef
+" The default methods for highlighting.  Can be overridden later
+" Comment Constant Error Identifier PreProc Special Statement Todo Type
+"
+" Constant		Boolean Character Number String
+" Identifier		Function
+" PreProc		Define Include Macro PreCondit
+" Special		Debug Delimiter SpecialChar SpecialComment Tag
+" Statement		Conditional Exception Keyword Label Operator Repeat
+" Type		StorageClass Structure Typedef
 
-  HiLink vmasmComment		Comment
-  HiLink vmasmTodo		Todo
+HiLink vmasmComment		Comment
+HiLink vmasmTodo		Todo
 
-  HiLink vmasmhexNumber		Number		" Constant
-  HiLink vmasmoctNumber		Number		" Constant
-  HiLink vmasmbinNumber		Number		" Constant
-  HiLink vmasmdecNumber		Number		" Constant
-  HiLink vmasmfloatNumber	Number		" Constant
+HiLink vmasmhexNumber		Number		" Constant
+HiLink vmasmoctNumber		Number		" Constant
+HiLink vmasmbinNumber		Number		" Constant
+HiLink vmasmdecNumber		Number		" Constant
+HiLink vmasmfloatNumber	Number		" Constant
 
 "  HiLink vmasmString		String		" Constant
 
-  HiLink vmasmReg		Identifier
-  HiLink vmasmOperator		Identifier
+HiLink vmasmReg		Identifier
+HiLink vmasmOperator		Identifier
 
-  HiLink vmasmInclude		Include		" PreProc
-  HiLink vmasmMacro		Macro		" PreProc
-  " HiLink vmasmMacroParam	Keyword		" Statement
+HiLink vmasmInclude		Include		" PreProc
+HiLink vmasmMacro		Macro		" PreProc
+" HiLink vmasmMacroParam	Keyword		" Statement
 
-  HiLink vmasmDirective		Special
-  HiLink vmasmPreCond		Special
+HiLink vmasmDirective		Special
+HiLink vmasmPreCond		Special
 
 
-  HiLink vmasmOpcode		Statement
-  HiLink vmasmCond		Conditional	" Statement
-  HiLink vmasmRepeat		Repeat		" Statement
+HiLink vmasmOpcode		Statement
+HiLink vmasmCond		Conditional	" Statement
+HiLink vmasmRepeat		Repeat		" Statement
 
-  HiLink vmasmLabel		Type
-  delcommand HiLink
-endif
+HiLink vmasmLabel		Type
+delcommand HiLink
 
 let b:current_syntax = "vmasm"
 
diff --git a/runtime/syntax/vrml.vim b/runtime/syntax/vrml.vim
--- a/runtime/syntax/vrml.vim
+++ b/runtime/syntax/vrml.vim
@@ -5,11 +5,8 @@
 " Former Maintainer:    Gregory Seidman <gsslist+vim@anthropohedron.net>
 " Last change:	   2006 May 03
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -168,11 +165,9 @@ syn keyword VRMLProtos	       contained 
 
 syn keyword VRMLRoutes	       contained ROUTE TO
 
-if version >= 502
 "containment!
-  syn include @jscript $VIMRUNTIME/syntax/javascript.vim
-  syn region VRMLjScriptString contained start=+"\(\(javascript\)\|\(vrmlscript\)\|\(ecmascript\)\):+ms=e+1 skip=+\\\\\|\\"+ end=+"+me=e-1 contains=@jscript
-endif
+syn include @jscript $VIMRUNTIME/syntax/javascript.vim
+syn region VRMLjScriptString contained start=+"\(\(javascript\)\|\(vrmlscript\)\|\(ecmascript\)\):+ms=e+1 skip=+\\\\\|\\"+ end=+"+me=e-1 contains=@jscript
 
 " match definitions.
 syn match   VRMLSpecial		  contained "\\[0-9][0-9][0-9]\|\\."
@@ -192,47 +187,37 @@ syn region  VRMLInstName	  start="USE\>"
 syn keyword VRMLInstances      contained DEF USE
 syn sync minlines=1
 
-if version >= 600
 "FOLDS!
-  syn sync fromstart
-  "setlocal foldmethod=syntax
-  syn region braceFold start="{" end="}" transparent fold contains=TOP
-  syn region bracketFold start="\[" end="]" transparent fold contains=TOP
-  syn region VRMLString start=+"+ skip=+\\\\\|\\"+ end=+"+ fold contains=VRMLSpecial,VRMLjScriptString
-endif
+syn sync fromstart
+"setlocal foldmethod=syntax
+syn region braceFold start="{" end="}" transparent fold contains=TOP
+syn region bracketFold start="\[" end="]" transparent fold contains=TOP
+syn region VRMLString start=+"+ skip=+\\\\\|\\"+ end=+"+ fold contains=VRMLSpecial,VRMLjScriptString
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_VRML_syntax_inits")
-  if version < 508
-    let did_VRML_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink VRMLCharacter  VRMLString
-  HiLink VRMLSpecialCharacter VRMLSpecial
-  HiLink VRMLNumber     VRMLString
-  HiLink VRMLValues     VRMLString
-  HiLink VRMLString     String
-  HiLink VRMLSpecial    Special
-  HiLink VRMLComment    Comment
-  HiLink VRMLNodes      Statement
-  HiLink VRMLFields     Type
-  HiLink VRMLEvents     Type
-  HiLink VRMLfTypes     LineNr
+HiLink VRMLCharacter  VRMLString
+HiLink VRMLSpecialCharacter VRMLSpecial
+HiLink VRMLNumber     VRMLString
+HiLink VRMLValues     VRMLString
+HiLink VRMLString     String
+HiLink VRMLSpecial    Special
+HiLink VRMLComment    Comment
+HiLink VRMLNodes      Statement
+HiLink VRMLFields     Type
+HiLink VRMLEvents     Type
+HiLink VRMLfTypes     LineNr
 "  hi     VRMLfTypes     ctermfg=6 guifg=Brown
-  HiLink VRMLInstances  PreCondit
-  HiLink VRMLRoutes     PreCondit
-  HiLink VRMLProtos     PreProc
-  HiLink VRMLRouteNode  Identifier
-  HiLink VRMLInstName   Identifier
-  HiLink VRMLTypes      Identifier
+HiLink VRMLInstances  PreCondit
+HiLink VRMLRoutes     PreCondit
+HiLink VRMLProtos     PreProc
+HiLink VRMLRouteNode  Identifier
+HiLink VRMLInstName   Identifier
+HiLink VRMLTypes      Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "vrml"
 
diff --git a/runtime/syntax/vroom.vim b/runtime/syntax/vroom.vim
--- a/runtime/syntax/vroom.vim
+++ b/runtime/syntax/vroom.vim
@@ -3,11 +3,8 @@
 " Maintainer:	David Barnett (https://github.com/google/vim-ft-vroom)
 " Last Change:	2014 Jul 23
 
-" For version 5.x: Clear all syntax items.
-" For version 6.x and later: Quit when a syntax file was already loaded.
-if v:version < 600
-  syntax clear
-elseif exists('b:current_syntax')
+" quit when a syntax file was already loaded
+if exists('b:current_syntax')
   finish
 endif
 
diff --git a/runtime/syntax/vsejcl.vim b/runtime/syntax/vsejcl.vim
--- a/runtime/syntax/vsejcl.vim
+++ b/runtime/syntax/vsejcl.vim
@@ -4,11 +4,8 @@
 " URL:
 " Last change: 2001 May 10
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -23,26 +20,18 @@ syn match vsejclString /'.\{-}'/
 syn match vsejclParms /(.\{-})/ contained
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_vsejcl_syntax")
-  if version < 508
-    let did_vsejcl_syntax = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink vsejclComment		Comment
-  HiLink vsejclField		Type
-  HiLink vsejclKeyword		Statement
-  HiLink vsejclObject		Constant
-  HiLink vsejclString		Constant
-  HiLink vsejclMisc			Special
-  HiLink vsejclParms		Constant
+HiLink vsejclComment		Comment
+HiLink vsejclField		Type
+HiLink vsejclKeyword		Statement
+HiLink vsejclObject		Constant
+HiLink vsejclString		Constant
+HiLink vsejclMisc			Special
+HiLink vsejclParms		Constant
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "vsejcl"
 
diff --git a/runtime/syntax/wdiff.vim b/runtime/syntax/wdiff.vim
--- a/runtime/syntax/wdiff.vim
+++ b/runtime/syntax/wdiff.vim
@@ -9,11 +9,8 @@
 " SPAM is _NOT_ welcome - be ready to be reported!
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -23,21 +20,12 @@ syn region wdiffNew start="{+" end="+}"
 
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_wdiff_syn_inits")
-  let did_wdiff_syn_inits = 1
-  if version < 508
-    let did_wdiff_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink wdiffOld       Special
-  HiLink wdiffNew       Identifier
+HiLink wdiffOld       Special
+HiLink wdiffNew       Identifier
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "wdiff"
diff --git a/runtime/syntax/web.vim b/runtime/syntax/web.vim
--- a/runtime/syntax/web.vim
+++ b/runtime/syntax/web.vim
@@ -8,11 +8,8 @@
 " the standard WEB distribution, available for anonymous ftp at
 " ftp://labrea.stanford.edu/pub/tex/web/.
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -20,12 +17,8 @@ endif
 " we base this syntax file on the modern superset, CWEB.  Note: This shortcut
 " may introduce some illegal constructs, e.g., CWEB's "@c" does _not_ start a
 " code section in WEB.  Anyway, I'm not a WEB programmer.
-if version < 600
-  source <sfile>:p:h/cweb.vim
-else
-  runtime! syntax/cweb.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/cweb.vim
+unlet b:current_syntax
 
 " Replace C/C++ syntax by Pascal syntax.
 syntax include @webIncludedC <sfile>:p:h/pascal.vim
diff --git a/runtime/syntax/webmacro.vim b/runtime/syntax/webmacro.vim
--- a/runtime/syntax/webmacro.vim
+++ b/runtime/syntax/webmacro.vim
@@ -11,21 +11,16 @@
 " For version 5.x: Clear all syntax items
 " For version 6.x: Quit when a syntax file was already loaded
 if !exists("main_syntax")
-  if version < 600
-    syntax clear
-  elseif exists("b:current_syntax")
+  " quit when a syntax file was already loaded
+  if exists("b:current_syntax")
     finish
   endif
   let main_syntax = 'webmacro'
 endif
 
 
-if version < 600
-  source <sfile>:p:h/html.vim
-else
-  runtime! syntax/html.vim
-  unlet b:current_syntax
-endif
+runtime! syntax/html.vim
+unlet b:current_syntax
 
 syn cluster htmlPreProc add=webmacroIf,webmacroUse,webmacroBraces,webmacroParse,webmacroInclude,webmacroSet,webmacroForeach,webmacroComment
 
@@ -49,31 +44,23 @@ syn match webmacroComment "##.*$"
 syn match webmacroHash "[#{}\$]" contained
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_webmacro_syn_inits")
-  if version < 508
-    let did_webmacro_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink webmacroComment CommentTitle
-  HiLink webmacroVariable PreProc
-  HiLink webmacroIf webmacroStatement
-  HiLink webmacroForeach webmacroStatement
-  HiLink webmacroSet webmacroStatement
-  HiLink webmacroInclude webmacroStatement
-  HiLink webmacroParse webmacroStatement
-  HiLink webmacroStatement Function
-  HiLink webmacroNumber Number
-  HiLink webmacroBoolean Boolean
-  HiLink webmacroSpecial Special
-  HiLink webmacroString String
-  HiLink webmacroBracesError Error
-  delcommand HiLink
-endif
+HiLink webmacroComment CommentTitle
+HiLink webmacroVariable PreProc
+HiLink webmacroIf webmacroStatement
+HiLink webmacroForeach webmacroStatement
+HiLink webmacroSet webmacroStatement
+HiLink webmacroInclude webmacroStatement
+HiLink webmacroParse webmacroStatement
+HiLink webmacroStatement Function
+HiLink webmacroNumber Number
+HiLink webmacroBoolean Boolean
+HiLink webmacroSpecial Special
+HiLink webmacroString String
+HiLink webmacroBracesError Error
+delcommand HiLink
 
 let b:current_syntax = "webmacro"
 
diff --git a/runtime/syntax/winbatch.vim b/runtime/syntax/winbatch.vim
--- a/runtime/syntax/winbatch.vim
+++ b/runtime/syntax/winbatch.vim
@@ -4,11 +4,8 @@
 " URL:		http://www.mggen.com/vim/syntax/winbatch.zip
 " Last change:	2001 May 10
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -158,29 +155,21 @@ syn keyword winbatchImplicit xgetchildhw
 syn keyword winbatchImplicit xsendmessage xverifyccard yield
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_winbatch_syntax_inits")
-  if version < 508
-    let did_winbatch_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink winbatchLabel		PreProc
-  HiLink winbatchCtl		Operator
-  HiLink winbatchStatement	Statement
-  HiLink winbatchTodo		Todo
-  HiLink winbatchString		String
-  HiLink winbatchVar		Type
-  HiLink winbatchComment	Comment
-  HiLink winbatchImplicit	Special
-  HiLink winbatchNumber		Number
-  HiLink winbatchConstant	StorageClass
+HiLink winbatchLabel		PreProc
+HiLink winbatchCtl		Operator
+HiLink winbatchStatement	Statement
+HiLink winbatchTodo		Todo
+HiLink winbatchString		String
+HiLink winbatchVar		Type
+HiLink winbatchComment	Comment
+HiLink winbatchImplicit	Special
+HiLink winbatchNumber		Number
+HiLink winbatchConstant	StorageClass
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "winbatch"
 
diff --git a/runtime/syntax/wml.vim b/runtime/syntax/wml.vim
--- a/runtime/syntax/wml.vim
+++ b/runtime/syntax/wml.vim
@@ -16,21 +16,14 @@
 "  vim-package around your corner :)
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 
 " A lot of the web stuff looks like HTML so we load that first
-if version < 600
-  so <sfile>:p:h/html.vim
-else
-  runtime! syntax/html.vim
-endif
+runtime! syntax/html.vim
 unlet b:current_syntax
 
 if !exists("main_syntax")
@@ -108,11 +101,7 @@ syn region  htmlTagName    start="\<\(de
 " The perl include stuff
 if main_syntax != 'perl'
   " Perl script
-  if version < 600
-    syn include @wmlPerlScript <sfile>:p:h/perl.vim
-  else
-    syn include @wmlPerlScript syntax/perl.vim
-  endif
+  syn include @wmlPerlScript syntax/perl.vim
   unlet b:current_syntax
 
   syn region perlScript   start=+<perl>+ keepend end=+</perl>+ contains=@wmlPerlScript,wmlPerlTag
@@ -140,33 +129,24 @@ if main_syntax == "html"
 endif
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_wml_syn_inits")
-  let did_wml_syn_inits = 1
-  if version < 508
-    let did_wml_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink wmlNextLine	Special
-  HiLink wmlUse		Include
-  HiLink wmlUsed	String
-  HiLink wmlBody	Special
-  HiLink wmlDiverted	Label
-  HiLink wmlDivert	Delimiter
-  HiLink wmlDivertEnd	Delimiter
-  HiLink wmlLocationId	Label
-  HiLink wmlLocation	Delimiter
+HiLink wmlNextLine	Special
+HiLink wmlUse		Include
+HiLink wmlUsed	String
+HiLink wmlBody	Special
+HiLink wmlDiverted	Label
+HiLink wmlDivert	Delimiter
+HiLink wmlDivertEnd	Delimiter
+HiLink wmlLocationId	Label
+HiLink wmlLocation	Delimiter
 " HiLink wmlLocationed	Delimiter
-  HiLink wmlDefineName	String
-  HiLink wmlComment	Comment
-  HiLink wmlInclude	Include
-  HiLink wmlSharpBang	PreProc
+HiLink wmlDefineName	String
+HiLink wmlComment	Comment
+HiLink wmlInclude	Include
+HiLink wmlSharpBang	PreProc
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "wml"
diff --git a/runtime/syntax/wsml.vim b/runtime/syntax/wsml.vim
--- a/runtime/syntax/wsml.vim
+++ b/runtime/syntax/wsml.vim
@@ -4,10 +4,8 @@
 " URL:		none
 " Last Change:  2006 Apr 30
 
-" Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -78,45 +76,37 @@ syn match   wsmlSpecial "\\u\d\{4\}"
 syn cluster wsmlTop add=wsmlString,wsmlCharacter,wsmlNumber,wsmlSpecial,wsmlStringError
 
 " Define the default highlighting.
-" " For version 5.7 and earlier: only when not done already
-" " For version 5.8 and later: only when an item doesn't have highlighting yet
- if version >= 508 || !exists("did_wsml_syn_inits")
-   if version < 508
-       let did_wsml_syn_inits = 1
-       command -nargs=+ HiLink hi link <args>
-   else
-       command -nargs=+ HiLink hi def link <args>
-   endif              
-   HiLink wsmlHeader			TypeDef
-   HiLink wsmlNamespace			TypeDef
-   HiLink wsmlOntology			Statement
-   HiLink wsmlAxiom			TypeDef
-   HiLink wsmlService			TypeDef
-   HiLink wsmlNFP			TypeDef
-   HiLink wsmlTopLevel			TypeDef
-   HiLink wsmlMediation			TypeDef 
-   HiLink wsmlBehavioral		TypeDef
-   HiLink wsmlChoreographyPri		TypeDef
-   HiLink wsmlChoreographySec		Operator
-   HiLink wsmlChoreographyTer		Special
-   HiLink wsmlString			String
-   HiLink wsmlIdentifier		Normal 
-   HiLink wsmlSqName                     Normal
-   HiLink wsmlVariable			Define
-   HiLink wsmlKeywordsInsideLEs		Operator
-   HiLink wsmlOperator			Operator
-   HiLink wsmlBrace			Operator
-   HiLink wsmlCharacter			Character
-   HiLink wsmlNumber			Number
-   HiLink wsmlDataTypes			Special
-   HiLink wsmlComment			Comment
-   HiLink wsmlDocComment		Comment
-   HiLink wsmlLineComment		Comment
-   HiLink wsmlTodo			Todo
-   HiLink wsmlFixMe			Error
-   HiLink wsmlCommentTitle		SpecialComment
-   HiLink wsmlCommentStar		wsmlComment
- endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink wsmlHeader			TypeDef
+HiLink wsmlNamespace			TypeDef
+HiLink wsmlOntology			Statement
+HiLink wsmlAxiom			TypeDef
+HiLink wsmlService			TypeDef
+HiLink wsmlNFP			TypeDef
+HiLink wsmlTopLevel			TypeDef
+HiLink wsmlMediation			TypeDef 
+HiLink wsmlBehavioral		TypeDef
+HiLink wsmlChoreographyPri		TypeDef
+HiLink wsmlChoreographySec		Operator
+HiLink wsmlChoreographyTer		Special
+HiLink wsmlString			String
+HiLink wsmlIdentifier		Normal 
+HiLink wsmlSqName                     Normal
+HiLink wsmlVariable			Define
+HiLink wsmlKeywordsInsideLEs		Operator
+HiLink wsmlOperator			Operator
+HiLink wsmlBrace			Operator
+HiLink wsmlCharacter			Character
+HiLink wsmlNumber			Number
+HiLink wsmlDataTypes			Special
+HiLink wsmlComment			Comment
+HiLink wsmlDocComment		Comment
+HiLink wsmlLineComment		Comment
+HiLink wsmlTodo			Todo
+HiLink wsmlFixMe			Error
+HiLink wsmlCommentTitle		SpecialComment
+HiLink wsmlCommentStar		wsmlComment
 
 delcommand HiLink
 
diff --git a/runtime/syntax/xdefaults.vim b/runtime/syntax/xdefaults.vim
--- a/runtime/syntax/xdefaults.vim
+++ b/runtime/syntax/xdefaults.vim
@@ -10,11 +10,8 @@
 "   xrdb manual page
 "   xrdb source: ftp://ftp.x.org/pub/R6.4/xc/programs/xrdb/xrdb.c
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -109,36 +106,28 @@ syn keyword xdefaultsSymbol contained X_
 syn keyword xdefaultsSymbol contained Y_RESOLUTION
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_xdefaults_syntax_inits")
-  if version < 508
-    let did_xdefaults_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink xdefaultsLabel		Type
-  HiLink xdefaultsValue		Constant
-  HiLink xdefaultsComment	Comment
-  HiLink xdefaultsCommentH	xdefaultsComment
-  HiLink xdefaultsPreProc	PreProc
-  HiLink xdefaultsInclude	xdefaultsPreProc
-  HiLink xdefaultsCppSkip	xdefaultsCppOut
-  HiLink xdefaultsCppOut2	xdefaultsCppOut
-  HiLink xdefaultsCppOut	Comment
-  HiLink xdefaultsIncluded	String
-  HiLink xdefaultsDefine	Macro
-  HiLink xdefaultsSymbol	Statement
-  HiLink xdefaultsSpecial	Statement
-  HiLink xdefaultsErrorLine	Error
-  HiLink xdefaultsCommentError	Error
-  HiLink xdefaultsPunct		Normal
-  HiLink xdefaultsLineEnd	Special
-  HiLink xdefaultsTodo		Todo
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink xdefaultsLabel		Type
+HiLink xdefaultsValue		Constant
+HiLink xdefaultsComment	Comment
+HiLink xdefaultsCommentH	xdefaultsComment
+HiLink xdefaultsPreProc	PreProc
+HiLink xdefaultsInclude	xdefaultsPreProc
+HiLink xdefaultsCppSkip	xdefaultsCppOut
+HiLink xdefaultsCppOut2	xdefaultsCppOut
+HiLink xdefaultsCppOut	Comment
+HiLink xdefaultsIncluded	String
+HiLink xdefaultsDefine	Macro
+HiLink xdefaultsSymbol	Statement
+HiLink xdefaultsSpecial	Statement
+HiLink xdefaultsErrorLine	Error
+HiLink xdefaultsCommentError	Error
+HiLink xdefaultsPunct		Normal
+HiLink xdefaultsLineEnd	Special
+HiLink xdefaultsTodo		Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "xdefaults"
 
diff --git a/runtime/syntax/xf86conf.vim b/runtime/syntax/xf86conf.vim
--- a/runtime/syntax/xf86conf.vim
+++ b/runtime/syntax/xf86conf.vim
@@ -10,12 +10,8 @@
 "							 to force XFree86 3.x or 4.x XF86Config syntax
 
 " Setup
-if version >= 600
-	if exists("b:current_syntax")
-		finish
-	endif
-else
-	echo "Sorry, but this syntax file relies on Vim 6 features.	 Either upgrade Vim or usea version of " . expand("<sfile>:t:r") . " syntax file appropriate for Vim " . version/100 . "." . version %100 . "."
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
 	finish
 endif
 
diff --git a/runtime/syntax/xkb.vim b/runtime/syntax/xkb.vim
--- a/runtime/syntax/xkb.vim
+++ b/runtime/syntax/xkb.vim
@@ -6,12 +6,9 @@
 " URL: http://trific.ath.cx/Ftp/vim/syntax/xkb.vim
 
 " Setup
-if version >= 600
-	if exists("b:current_syntax")
-		finish
-	endif
-else
-	syntax clear
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+	finish
 endif
 
 syn case match
@@ -50,42 +47,35 @@ syn keyword xkbTModif default hidden par
 syn keyword xkbSect alphanumeric_keys alternate_group function_keys keypad_keys modifier_keys xkb_compatibility xkb_geometry xkb_keycodes xkb_keymap xkb_semantics xkb_symbols xkb_types
 
 " Define the default highlighting
-if version >= 508 || !exists("did_xkb_syntax_inits")
-	if version < 508
-		let did_xkb_syntax_inits = 1
-		command -nargs=+ HiLink hi link <args>
-	else
-		command -nargs=+ HiLink hi def link <args>
-	endif
+command -nargs=+ HiLink hi def link <args>
+
+HiLink xkbModif xkbPreproc
+HiLink xkbTModif xkbPreproc
+HiLink xkbPreproc Preproc
 
-	HiLink xkbModif xkbPreproc
-	HiLink xkbTModif xkbPreproc
-	HiLink xkbPreproc Preproc
+HiLink xkbIdentifier Keyword
+HiLink xkbFunction Function
+HiLink xkbSect Type
+HiLink xkbPhysicalKey Identifier
+HiLink xkbKeyword Keyword
 
-	HiLink xkbIdentifier Keyword
-	HiLink xkbFunction Function
-	HiLink xkbSect Type
-	HiLink xkbPhysicalKey Identifier
-	HiLink xkbKeyword Keyword
+HiLink xkbComment Comment
+HiLink xkbTodo Todo
 
-	HiLink xkbComment Comment
-	HiLink xkbTodo Todo
+HiLink xkbConstant Constant
+HiLink xkbString String
 
-	HiLink xkbConstant Constant
-	HiLink xkbString String
-
-	HiLink xkbSpecialChar xkbSpecial
-	HiLink xkbSpecial Special
+HiLink xkbSpecialChar xkbSpecial
+HiLink xkbSpecial Special
 
-	HiLink xkbParenError xkbBalancingError
-	HiLink xkbBraceError xkbBalancingError
-	HiLink xkbBraketError xkbBalancingError
-	HiLink xkbBalancingError xkbError
-	HiLink xkbCommentStartError xkbCommentError
-	HiLink xkbCommentError xkbError
-	HiLink xkbError Error
+HiLink xkbParenError xkbBalancingError
+HiLink xkbBraceError xkbBalancingError
+HiLink xkbBraketError xkbBalancingError
+HiLink xkbBalancingError xkbError
+HiLink xkbCommentStartError xkbCommentError
+HiLink xkbCommentError xkbError
+HiLink xkbError Error
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "xkb"
diff --git a/runtime/syntax/xmath.vim b/runtime/syntax/xmath.vim
--- a/runtime/syntax/xmath.vim
+++ b/runtime/syntax/xmath.vim
@@ -5,11 +5,8 @@
 " Version:	7
 " URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_XMATH
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -194,42 +191,34 @@ syn sync match xmathSyncComment	groupher
 syn sync match xmathSyncComment	groupthere NONE "}#"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_xmath_syntax_inits")
-  if version < 508
-    let did_xmath_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink xmathBraceError	xmathError
-  HiLink xmathCmd	xmathStatement
-  HiLink xmathCommentBlock	xmathComment
-  HiLink xmathCurlyError	xmathError
-  HiLink xmathFuncCmd	xmathStatement
-  HiLink xmathParenError	xmathError
+HiLink xmathBraceError	xmathError
+HiLink xmathCmd	xmathStatement
+HiLink xmathCommentBlock	xmathComment
+HiLink xmathCurlyError	xmathError
+HiLink xmathFuncCmd	xmathStatement
+HiLink xmathParenError	xmathError
 
-  " The default methods for highlighting.  Can be overridden later
-  HiLink xmathCharacter	Character
-  HiLink xmathComma	Delimiter
-  HiLink xmathComment	Comment
-  HiLink xmathCommentBlock	Comment
-  HiLink xmathConditional	Conditional
-  HiLink xmathError	Error
-  HiLink xmathFunc	Function
-  HiLink xmathLabel	PreProc
-  HiLink xmathNumber	Number
-  HiLink xmathRepeat	Repeat
-  HiLink xmathSpecial	Type
-  HiLink xmathSpecialChar	SpecialChar
-  HiLink xmathStatement	Statement
-  HiLink xmathString	String
-  HiLink xmathTodo	Todo
+" The default methods for highlighting.  Can be overridden later
+HiLink xmathCharacter	Character
+HiLink xmathComma	Delimiter
+HiLink xmathComment	Comment
+HiLink xmathCommentBlock	Comment
+HiLink xmathConditional	Conditional
+HiLink xmathError	Error
+HiLink xmathFunc	Function
+HiLink xmathLabel	PreProc
+HiLink xmathNumber	Number
+HiLink xmathRepeat	Repeat
+HiLink xmathSpecial	Type
+HiLink xmathSpecialChar	SpecialChar
+HiLink xmathStatement	Statement
+HiLink xmathString	String
+HiLink xmathTodo	Todo
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "xmath"
 
diff --git a/runtime/syntax/xpm.vim b/runtime/syntax/xpm.vim
--- a/runtime/syntax/xpm.vim
+++ b/runtime/syntax/xpm.vim
@@ -4,11 +4,8 @@
 " Last Change:	2008 May 28
 " Version:	5.4n.1
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -126,24 +123,16 @@ unlet color chars colors cpp n i s
 endif		" has("gui_running")
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_xpm_syntax_inits")
-  if version < 508
-    let did_xpm_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink xpmType		Type
-  HiLink xpmStorageClass	StorageClass
-  HiLink xpmTodo		Todo
-  HiLink xpmComment		Comment
-  HiLink xpmPixelString	String
+HiLink xpmType		Type
+HiLink xpmStorageClass	StorageClass
+HiLink xpmTodo		Todo
+HiLink xpmComment		Comment
+HiLink xpmPixelString	String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "xpm"
 
diff --git a/runtime/syntax/xpm2.vim b/runtime/syntax/xpm2.vim
--- a/runtime/syntax/xpm2.vim
+++ b/runtime/syntax/xpm2.vim
@@ -7,11 +7,8 @@
 "
 " Made from xpm.vim by Ronald Schild <rs@scutum.de>
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -23,13 +20,8 @@ syn keyword xpm2Todo		TODO FIXME XXX  co
 syn match   xpm2Comment		"\!.*$"  contains=@Spell,xpm2Todo
 
 
-if version < 508
-  command -nargs=+ HiLink hi link <args>
-  command -nargs=+ Hi hi <args>
-else
-  command -nargs=+ HiLink hi def link <args>
-  command -nargs=+ Hi hi def <args>
-endif
+command -nargs=+ HiLink hi def link <args>
+command -nargs=+ Hi hi def <args>
 
 if has("gui_running")
 
@@ -144,20 +136,14 @@ if has("gui_running")
 endif		" has("gui_running")
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_xpm2_syntax_inits")
-  if version < 508
-    let did_xpm2_syntax_inits = 1
-  endif
+" Only when an item doesn't have highlighting yet
+" The default highlighting.
+HiLink xpm2Type		Type
+HiLink xpm2StorageClass	StorageClass
+HiLink xpm2Todo		Todo
+HiLink xpm2Comment		Comment
+HiLink xpm2PixelString	String
 
-  " The default highlighting.
-  HiLink xpm2Type		Type
-  HiLink xpm2StorageClass	StorageClass
-  HiLink xpm2Todo		Todo
-  HiLink xpm2Comment		Comment
-  HiLink xpm2PixelString	String
-endif
 delcommand HiLink
 delcommand Hi
 
diff --git a/runtime/syntax/xs.vim b/runtime/syntax/xs.vim
--- a/runtime/syntax/xs.vim
+++ b/runtime/syntax/xs.vim
@@ -5,20 +5,13 @@
 " Previous:    Vincent Pit <perl@profvince.com>
 " Last Change: 2013-05-12
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
 " Read the C syntax to start with
-if version < 600
-  source <sfile>:p:h/c.vim
-else
-  runtime! syntax/c.vim
-endif
+runtime! syntax/c.vim
 
 let xs_superseded = 1 " mark C functions superseded by Perl replacements
 let xs_not_core   = 1 " mark private core functions
@@ -3249,29 +3242,21 @@ syn keyword xsMacro what_len_TRICKYFOLD_
 syn keyword xsMacro xiv_iv xuv_uv yystype
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_xs_syntax_inits")
-  if version < 508
-    let did_xs_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink xsPrivate    Error
-  HiLink xsSuperseded Error
-  HiLink xsType       Type
-  HiLink xsString     String
-  HiLink xsConstant   Constant
-  HiLink xsException  Exception
-  HiLink xsKeyword    Keyword
-  HiLink xsFunction   Function
-  HiLink xsVariable   Identifier
-  HiLink xsMacro      Macro
+HiLink xsPrivate    Error
+HiLink xsSuperseded Error
+HiLink xsType       Type
+HiLink xsString     String
+HiLink xsConstant   Constant
+HiLink xsException  Exception
+HiLink xsKeyword    Keyword
+HiLink xsFunction   Function
+HiLink xsVariable   Identifier
+HiLink xsMacro      Macro
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "xs"
 
diff --git a/runtime/syntax/xxd.vim b/runtime/syntax/xxd.vim
--- a/runtime/syntax/xxd.vim
+++ b/runtime/syntax/xxd.vim
@@ -6,11 +6,8 @@
 " Notes:		use :help xxd   to see how to invoke it
 " URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_XXD
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -20,22 +17,14 @@ syn match xxdAscii				"  .\{,16\}\r\=$"h
 syn match xxdDot	contained	"[.\r]"
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_xxd_syntax_inits")
-  if version < 508
-    let did_xxd_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
- HiLink xxdAddress	Constant
- HiLink xxdSep		Identifier
- HiLink xxdAscii	Statement
+HiLink xxdAddress	Constant
+HiLink xxdSep		Identifier
+HiLink xxdAscii	Statement
 
- delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "xxd"
 
diff --git a/runtime/syntax/yacc.vim b/runtime/syntax/yacc.vim
--- a/runtime/syntax/yacc.vim
+++ b/runtime/syntax/yacc.vim
@@ -10,9 +10,6 @@
 
 " ---------------------------------------------------------------------
 " this version of syntax/yacc.vim requires 6.0 or later
-if version < 600
- finish
-endif
 if exists("b:current_syntax")
  syntax clear
 endif
diff --git a/runtime/syntax/z8a.vim b/runtime/syntax/z8a.vim
--- a/runtime/syntax/z8a.vim
+++ b/runtime/syntax/z8a.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Milan Pikula <www@fornax.elf.stuba.sk>
 " Last Change:	2003 May 11
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -85,30 +82,22 @@ syn match z8aComment		";.*"
 syn case match
 
 " Define the default highlighting.
-" For version 5.7 and earlier: only when not done already
-" For version 5.8 and later: only when an item doesn't have highlighting yet
-if version >= 508 || !exists("did_z8a_syntax_inits")
-  if version < 508
-    let did_z8a_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink z8aSection		Special
-  HiLink z8aLabel		Label
-  HiLink z8aSpecialLabel	Label
-  HiLink z8aComment		Comment
-  HiLink z8aInstruction	Statement
-  HiLink z8aSpecInst		Statement
-  HiLink z8aInclude		Include
-  HiLink z8aPreCondit		PreCondit
-  HiLink z8aPreProc		PreProc
-  HiLink z8aNumber		Number
-  HiLink z8aString		String
+HiLink z8aSection		Special
+HiLink z8aLabel		Label
+HiLink z8aSpecialLabel	Label
+HiLink z8aComment		Comment
+HiLink z8aInstruction	Statement
+HiLink z8aSpecInst		Statement
+HiLink z8aInclude		Include
+HiLink z8aPreCondit		PreCondit
+HiLink z8aPreProc		PreProc
+HiLink z8aNumber		Number
+HiLink z8aString		String
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "z8a"
 " vim: ts=8
diff --git a/src/po/fi.po b/src/po/fi.po
--- a/src/po/fi.po
+++ b/src/po/fi.po
@@ -17,7 +17,7 @@ msgstr ""
 "Project-Id-Version: Vim 7\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2016-08-23 12:27+0200\n"
-"PO-Revision-Date: 2016-08-23 16:12+0200\n"
+"PO-Revision-Date: 2016-08-29 11:27+0200\n"
 "Last-Translator: Flammie A Pirinen <flammie@iki.fi>\n"
 "Language-Team: Finnish <laatu@lokalisointi.org>\n"
 "Language: fi\n"
@@ -4804,7 +4804,7 @@ msgid "E872: (NFA regexp) Too many '('"
 msgstr "E872: (NFA regexp) Liian monta suljetta '('"
 
 msgid "E879: (NFA regexp) Too many \\z("
-msgstr"E879: (NFA regexp) Liikaa merkkejä \\z("
+msgstr "E879: (NFA regexp) Liikaa merkkejä \\z("
 
 msgid "E873: (NFA regexp) proper termination error"
 msgstr "E873: (NFA regexp) oikea lopetusvirhe"