diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
index 2a953ee..b73011a 100644
--- a/runtime/doc/vim9.txt
+++ b/runtime/doc/vim9.txt
@@ -1,4 +1,4 @@
-*vim9.txt*	For Vim version 9.0.  Last change: 2022 Sep 15
+*vim9.txt*	For Vim version 9.0.  Last change: 2022 Sep 19
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -962,6 +962,8 @@
 	3
 Generally, you should not change the list that is iterated over.  Make a copy
 first if needed.
+							*E1306*
+The depth of loops, :for and :while loops added together, cannot exceed 10.
 
 
 Conditions and expressions ~