diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index dfe101f331..0d859d91a6 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -162,6 +162,8 @@ The following new LyX functions have been introduced:
   could be used to export a pdf with the answers branch included, without 
   one's having to open LyX and activate the branch manually.
 
+- LFUN_NOTES_MUTATE, "notes-mutate"
+
 The following new LyX functions have been removed:
 
 - LFUN_FILE_NEW.