diff --git a/CHANGES.txt b/CHANGES.txt
index 81342f4..caf56c8 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,6 +1,7 @@
 
 0.5
 - changed license to MIT
+- "clean_entities" & "clean_nodes" files now use json format
 
 
 0.4