diff --git a/runtime/doc/change.txt b/runtime/doc/change.txt
index 65e4e72..4bd877f 100644
--- a/runtime/doc/change.txt
+++ b/runtime/doc/change.txt
@@ -1,4 +1,4 @@
-*change.txt*    For Vim version 9.1.  Last change: 2025 Jun 23
+*change.txt*    For Vim version 9.1.  Last change: 2025 Jun 25
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -2014,12 +2014,20 @@
 			With [r] comparison is done on the text that matches
 			/{pattern}/ instead of the full line.
 
+			With [u] only keep lines that do not repeat (i.e., are
+			not immediately followed by the same line).
+
+			With [!] only keep lines that are immediately followed
+			by a duplicate.
+
+			If both [!] and [u] are given, [u] is ignored and [!]
+			takes effect.
+
 			When /{pattern}/ is specified and [r] is not used, the
 			text matched with {pattern} is skipped and comparison
 			is done on what comes after the match.
 			'ignorecase' applies to the pattern, but 'smartcase'
 			is not used.
-
 			Instead of the slash any non-letter can be used.
 
 			For example, to remove adjacent duplicate lines based
@@ -2031,17 +2039,8 @@
 <			If {pattern} is empty (e.g. // is used), the last
 			search pattern is used.
 
-			With [u] only keep lines that do not repeat (i.e., are
-			not immediately followed by the same line).
-
-			With [!] only keep lines that are immediately followed
-			by a duplicate.
-
-			If both [!] and [u] are given, [u] is ignored and [!]
-			takes effect.
-
-			Note that leading and trailing white space, and lines
-			that are not adjacent, are not considered duplicates.
+			Note that leading and trailing white space may cause
+			lines to be considered different.
 			To remove all duplicates regardless of position, use
 			|:sort-u| or external tools.