update CHANGE list
diff --git a/CHANGES.txt b/CHANGES.txt
index efcf0b9..dac6309 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,6 +1,7 @@
 
-2022-06-?? version 21.?
+Unreleased version
   * Handle reflection for message splitting.
+  * make metadata fields lazy.
 
 2022-05-27 version 21.1 (C++/Java/Python/PHP/Objective-C/C#/Ruby)