--- a/runtime/doc/quickfix.txt
+++ b/runtime/doc/quickfix.txt
@@ -1,4 +1,4 @@
-*quickfix.txt*  For Vim version 7.4.  Last change: 2014 Mar 27
+*quickfix.txt*  For Vim version 7.4.  Last change: 2015 Sep 08
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -299,6 +299,75 @@ use this code: >
 	au QuickfixCmdPost make call QfMakeConv()
 
 
+EXECUTE A COMMAND IN ALL THE BUFFERS IN QUICKFIX OR LOCATION LIST:
+							*:cdo*
+:cdo[!] {cmd}		Execute {cmd} in each valid entry in the quickfix list.
+			It works like doing this: >
+				:cfirst
+				:{cmd}
+				:cnext
+				:{cmd}
+				etc.
+<			When the current file can't be |abandon|ed and the [!]
+			is not present, the command fails.
+			When an error is detected excecution stops.
+			The last buffer (or where an error occurred) becomes
+			the current buffer.
+			{cmd} can contain '|' to concatenate several commands.
+
+			Only valid entries in the quickfix list are used.
+			A range can be used to select entries, e.g.: >
+				:10,$cdo cmd
+<			To skip entries 1 to 9.
+
+			Note: While this command is executing, the Syntax
+			autocommand event is disabled by adding it to
+			'eventignore'.  This considerably speeds up editing
+			each buffer.
+			{not in Vi} {not available when compiled without the
+			|+listcmds| feature}
+			Also see |:bufdo|, |:tabdo|, |:argdo|, |:windo|,
+			|:ldo|, |:cfdo| and |:lfdo|.
+
+							*:cfdo*
+:cfdo[!] {cmd}		Execute {cmd} in each file in the quickfix list.
+			It works like doing this: >
+				:cfirst
+				:{cmd}
+				:cnfile
+				:{cmd}
+				etc.
+<			Otherwise it works the same as `:cdo`.
+			{not in Vi} {not available when compiled without the
+			|+listcmds| feature}
+
+							*:ldo*
+:ld[o][!] {cmd}		Execute {cmd} in each valid entry in the location list
+			for the current window.
+			It works like doing this: >
+				:lfirst
+				:{cmd}
+				:lnext
+				:{cmd}
+				etc.
+<			Only valid entries in the location list are used.
+			Otherwise it works the same as `:cdo`.
+			{not in Vi} {not available when compiled without the
+			|+listcmds| feature}
+
+							*:lfdo*
+:lfdo[!] {cmd}		Execute {cmd} in each file in the location list for
+			the current window.
+			It works like doing this: >
+				:lfirst
+				:{cmd}
+				:lnfile
+				:{cmd}
+				etc.
+<			Otherwise it works the same as `:ldo`.
+			{not in Vi} {not available when compiled without the
+			|+listcmds| feature}
+
 =============================================================================
 2. The error window					*quickfix-window*