diff --git a/CHANGELOG b/CHANGELOG
index 9459dfa74330e23d91b78ff8f75af192888583b4..2ba677b0e621dbcd5e16183120c303e3f6770e27 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,2 @@
-2021-02-25: rewrite for CMK 2.x
-            added warning/critical is chassis grade not equeal maxGrade
-2021-09-10: rewrite parse function
-2021-09-11: added WATO, cleanup
-2022-10-23: fixed warning on upgrade "non-empty params vanished" for discovery_chassis and discovery_sgms
+2021-12-02: initial release
 2023-05-29: moved gui files to ~/local/lib/check_mk/gui/plugins/...