--- a/runtime/syntax/vim.vim
+++ b/runtime/syntax/vim.vim
@@ -1,8 +1,8 @@
 " Vim syntax file
 " Language:	Vim 8.0 script
 " Maintainer:	Charles E. Campbell <NdrOchipS@PcampbellAfamily.Mbiz>
-" Last Change:	July 15, 2020
-" Version:	8.0-41
+" Last Change:	Aug 30, 2020
+" Version:	8.0-43
 " URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_VIM
 " Automatically generated keyword lists: {{{1
 
@@ -236,7 +236,7 @@ endif
 " Functions : Tag is provided for those who wish to highlight tagged functions {{{2
 " =========
 syn cluster	vimFuncList	contains=vimCommand,vimFunctionError,vimFuncKey,Tag,vimFuncSID
-syn cluster	vimFuncBodyList	contains=vimAbb,vimAddress,vimAugroupKey,vimAutoCmd,vimCmplxRepeat,vimComment,vim9Comment,vimContinue,vimCtrlChar,vimEcho,vimEchoHL,vimExecute,vimIsCommand,vimFBVar,vimFunc,vimFunction,vimFuncVar,vimGlobal,vimHighlight,vimIsCommand,vimLet,vimLetHereDoc,vimLineComment,vimMap,vimMark,vimNorm,vimNotation,vimNotFunc,vimNumber,vimOper,vimOperParen,vimRegion,vimRegister,vimSearch,vimSet,vimSpecFile,vimString,vimSubst,vimSynLine,vimUnmap,vimUserCommand
+syn cluster	vimFuncBodyList	contains=vimAbb,vimAddress,vimAugroupKey,vimAutoCmd,vimCmplxRepeat,vimComment,vim9Comment,vimContinue,vimCtrlChar,vimEcho,vimEchoHL,vimEnvvar,vimExecute,vimIsCommand,vimFBVar,vimFunc,vimFunction,vimFuncVar,vimGlobal,vimHighlight,vimIsCommand,vimLet,vimLetHereDoc,vimLineComment,vimMap,vimMark,vimNorm,vimNotation,vimNotFunc,vimNumber,vimOper,vimOperParen,vimRegion,vimRegister,vimSearch,vimSet,vimSpecFile,vimString,vimSubst,vimSynLine,vimUnmap,vimUserCommand
 syn match	vimFunction	"\<\(fu\%[nction]\|def\)!\=\s\+\%(<[sS][iI][dD]>\|[sSgGbBwWtTlL]:\)\=\%(\i\|[#.]\|{.\{-1,}}\)*\ze\s*("	contains=@vimFuncList nextgroup=vimFuncBody
 
 if exists("g:vimsyn_folding") && g:vimsyn_folding =~# 'f'
@@ -266,7 +266,7 @@ syn match	vimSpecFileMod	"\(:[phtre]\)\+
 " =======================
 syn cluster	vimUserCmdList	contains=vimAddress,vimSyntax,vimHighlight,vimAutoCmd,vimCmplxRepeat,vimComment,vim9Comment,vimCtrlChar,vimEscapeBrace,vimFunc,vimFuncName,vimFunction,vimFunctionError,vimIsCommand,vimMark,vimNotation,vimNumber,vimOper,vimRegion,vimRegister,vimLet,vimSet,vimSetEqual,vimSetString,vimSpecFile,vimString,vimSubst,vimSubstRep,vimSubstRange,vimSynLine
 syn keyword	vimUserCommand	contained	com[mand]
-syn match	vimUserCmd	"\<com\%[mand]!\=\>.*$"	contains=vimUserAttrb,vimUserAttrbError,vimUserCommand,@vimUserCmdList
+syn match	vimUserCmd	"\<com\%[mand]!\=\>.*$"	contains=vimUserAttrb,vimUserAttrbError,vimUserCommand,@vimUserCmdList,vimComFilter
 syn match	vimUserAttrbError	contained	"-\a\+\ze\s"
 syn match	vimUserAttrb	contained	"-nargs=[01*?+]"	contains=vimUserAttrbKey,vimOper
 syn match	vimUserAttrb	contained	"-complete="		contains=vimUserAttrbKey,vimOper nextgroup=vimUserAttrbCmplt,vimUserCmdError
@@ -295,12 +295,13 @@ syn match	vimComment	+\<endif\s\+".*$+lc
 syn match	vimComment	+\<else\s\+".*$+lc=4	contains=@vimCommentGroup,vimCommentString
 syn region	vimCommentString	contained oneline start='\S\s\+"'ms=e	end='"'
 " Vim9 comments - TODO: might be highlighted while they don't work
-syn match	vim9Comment	excludenl +^#[^{].*$+	contains=@vimCommentGroup,vimCommentString
 syn match	vim9Comment	excludenl +\s#[^{].*$+lc=1	contains=@vimCommentGroup,vimCommentString
 syn match	vim9Comment	+\<endif\s\+#[^{].*$+lc=5	contains=@vimCommentGroup,vimCommentString
 syn match	vim9Comment	+\<else\s\+#[^{].*$+lc=4	contains=@vimCommentGroup,vimCommentString
 " Vim9 comment inside expression
 syn match	vim9Comment	+\s\zs#[^{].*$+ms=s+1	contains=@vimCommentGroup,vimCommentString
+syn match	vim9Comment	+^\s*#[^{].*$+	contains=@vimCommentGroup,vimCommentString
+syn match	vim9Comment	+^\s*#$+	contains=@vimCommentGroup,vimCommentString
 
 " Environment Variables: {{{2
 " =====================
@@ -370,7 +371,8 @@ syn match	vimAddress	",\zs[.$]"	skipwhit
 syn match	vimAddress	"%\ze\a"	skipwhite nextgroup=vimString,vimSubst1
 
 syn match	vimFilter 		"^!!\=[^"]\{-}\(|\|\ze\"\|$\)"	contains=vimOper,vimSpecFile
-syn match	vimFilter contained	"!!\=[^"]\{-}\(|\|\ze\"\|$\)"	contains=vimOper,vimSpecFile
+syn match	vimFilter    contained	"!!\=[^"]\{-}\(|\|\ze\"\|$\)"	contains=vimOper,vimSpecFile
+syn match	vimComFilter contained	"|!!\=[^"]\{-}\(|\|\ze\"\|$\)"      contains=vimOper,vimSpecFile
 
 " Complex Repeats: (:h complex-repeat) {{{2
 " ===============
@@ -386,7 +388,7 @@ syn match	vimSetMod	contained	"&vim\=\|[
 
 " Let: {{{2
 " ===
-syn keyword	vimLet	let	unl[et]	skipwhite nextgroup=vimVar,vimFuncVar,vimLetHereDoc
+syn keyword	vimLet	let var	unl[et]	skipwhite nextgroup=vimVar,vimFuncVar,vimLetHereDoc
 VimFoldh syn region vimLetHereDoc	matchgroup=vimLetHereDocStart start='=<<\s\+\%(trim\>\)\=\s*\z(\L\S*\)'	matchgroup=vimLetHereDocStop end='^\s*\z1\s*$'	contains=vimComment,vim9Comment
 
 " Abbreviations: {{{2
@@ -397,8 +399,9 @@ syn keyword vimAbb	ab[breviate] ca[bbrev
 " =======
 syn match	vimAutoEventList	contained	"\(!\s\+\)\=\(\a\+,\)*\a\+"	contains=vimAutoEvent nextgroup=vimAutoCmdSpace
 syn match	vimAutoCmdSpace	contained	"\s\+"	nextgroup=vimAutoCmdSfxList
-syn match	vimAutoCmdSfxList	contained	"\S*"
+syn match	vimAutoCmdSfxList	contained	"\S*"	skipwhite nextgroup=vimAutoCmdMod
 syn keyword	vimAutoCmd	au[tocmd] do[autocmd] doautoa[ll]	skipwhite nextgroup=vimAutoEventList
+syn match	vimAutoCmdMod	"\(++\)\=\(once\|nested\)"
 
 " Echo And Execute: -- prefer strings! {{{2
 " ================
@@ -634,7 +637,7 @@ syn match	vimCtrlChar	"[
--]"
 " Beginners - Patterns that involve ^ {{{2
 " =========
 syn match	vimLineComment	+^[ \t:]*".*$+	contains=@vimCommentGroup,vimCommentString,vimCommentTitle
-syn match	vim9LineComment	+^[ \t:]*#.*$+	contains=@vimCommentGroup,vimCommentString,vimCommentTitle
+syn match	vim9LineComment	+^[ \t]*#.*$+	contains=@vimCommentGroup,vimCommentString,vimCommentTitle
 syn match	vimCommentTitle	'"\s*\%([sS]:\|\h\w*#\)\=\u\w*\(\s\+\u\w*\)*:'hs=s+1	contained contains=vimCommentTitleLeader,vimTodo,@vimCommentGroup
 syn match	vimContinue	"^\s*\\"
 syn region	vimString	start="^\s*\\\z(['"]\)" skip='\\\\\|\\\z1' end="\z1" oneline keepend contains=@vimStringGroup,vimContinue
@@ -861,6 +864,7 @@ if !exists("skip_vim_syntax_inits")
  hi def link vimAutoCmdOpt	vimOption
  hi def link vimAutoCmd	vimCommand
  hi def link vimAutoEvent	Type
+ hi def link vimAutoCmdMod	Special
  hi def link vimAutoSet	vimCommand
  hi def link vimBehaveModel	vimBehave
  hi def link vimBehave	vimCommand