diff --git a/Changes b/Changes
index a764c07..9a2ac2b 100644
--- a/Changes
+++ b/Changes
@@ -1,6 +1,7 @@
 Version 2.4 (to come)
 
-o Optional content groups now preserved when merging / stamping pages
+o Optional Content Groups now preserved when merging / stamping pages
+o Listing, coalescing and modfying Optional Content Groups.
 o Vendored in tiny_json from Yoshihiro Imai via Jan Furuse
 o New -labels-progress option to improve page labels interface
 o New options -output-json et al. to export PDF files in JSON format