diff --git a/runtime/doc/insert.txt b/runtime/doc/insert.txt
index 155eb8f..da028e8 100644
--- a/runtime/doc/insert.txt
+++ b/runtime/doc/insert.txt
@@ -1,4 +1,4 @@
-*insert.txt*    For Vim version 9.1.  Last change: 2025 Jun 04
+*insert.txt*    For Vim version 9.1.  Last change: 2025 Jun 11
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -659,6 +659,9 @@
 not a valid CTRL-X mode command.  Valid keys are the CTRL-X command itself,
 CTRL-N (next), and CTRL-P (previous).
 
+By default, the possible completions are showed in a menu and the first
+completion is inserted into the text. This can be adjusted with 'completeopt'.
+
 To get the current completion information, |complete_info()| can be used.
 Also see the 'infercase' option if you want to adjust the case of the match.