diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index 36a16860c9b..ffdc6038913 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -32,6 +32,8 @@ it from source control: http://www.mediawiki.org/wiki/Download_from_SVN
 * Don't show edit permissions errors on a red link click, just redirect to the 
   article. This is so that readers who don't know what a red link is aren't 
   confused when they are told they are range-blocked.
+* Add a new hook ImageBeforeProduceHTML to allow extensions to modify wikitext
+  image syntax output.
 
 === Bug fixes in 1.13 ===