diff --git a/runtime/doc/windows.txt b/runtime/doc/windows.txt
index 81042db..7700269 100644
--- a/runtime/doc/windows.txt
+++ b/runtime/doc/windows.txt
@@ -1,4 +1,4 @@
-*windows.txt*   For Vim version 7.4.  Last change: 2016 Aug 18
+*windows.txt*   For Vim version 7.4.  Last change: 2016 Aug 23
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -75,7 +75,7 @@
 
 The main Vim window can hold several split windows.  There are also tab pages
 |tab-page|, each of which can hold multiple windows.
-							*window-ID*
+					*window-ID* *winid* *windowid*
 Each window has a unique identifier called the window ID.  This identifier
 will not change within a Vim session. The |win_getid()| and |win_id2tabwin()|
 functions can be used to convert between the window/tab number and the
@@ -1042,6 +1042,10 @@
 		     h+   hidden buffers which are modified
 		     a+   active buffers which are modified
 
+		When using |:filter| the pattern is matched against the
+		displayed buffer name, e.g.: >
+			filter /\.vim/ ls
+<
 						*:bad* *:badd*
 :bad[d]	[+lnum] {fname}
 		Add file name {fname} to the buffer list, without loading it.