diff --git a/runtime/doc/repeat.txt b/runtime/doc/repeat.txt
index 049fabb..25f375e 100644
--- a/runtime/doc/repeat.txt
+++ b/runtime/doc/repeat.txt
@@ -1,4 +1,4 @@
-*repeat.txt*    For Vim version 8.2.  Last change: 2021 Nov 24
+*repeat.txt*    For Vim version 8.2.  Last change: 2021 Dec 27
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -495,6 +495,9 @@
 		\ "very long regexp"
 		\ keepend
 
+In |Vim9| script the backslash can often be omitted, but not always.
+See |vim9-line-continuation|.
+
 There is a problem with the ":append" and ":insert" commands: >
    :1append
    \asdf