diff --git a/doc/tips/upgrade_to_3.0.mdwn b/doc/tips/upgrade_to_3.0.mdwn
index bd47e96e5..cf33f4d1c 100644
--- a/doc/tips/upgrade_to_3.0.mdwn
+++ b/doc/tips/upgrade_to_3.0.mdwn
@@ -64,7 +64,8 @@ appropriate between terms:
 
 GlobLists have been deprecated for more than two years. If your wiki dates
 to the ikiwiki 1.0 era, you should check it for any that might have lurked
-unnoticed in it since back then.
+unnoticed in it since back then. Ikiwiki version 2.72 will print warnings
+about any GlobLists it sees.
 
 ## aggregateinternal