diff --git a/CHANGELOG b/CHANGELOG
index d006dfaabb32ff706442147dc477fe89435547fe..9bed417b06634ecbd0ca1786f923a567a01fddee 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1 +1,7 @@
-2020-03-15: added support for CMK1.6x
\ No newline at end of file
+2016-04-08: initial release
+2016-08-22: removed index column
+2018-08-04: changed scan function, code cleanup
+2018-09-04: changes for CMK 1.5.x (inv_tree --> inv_tree_list)
+2020-03-15: added support for CMK1.6x
+2021-07-11: rewritten for CMK 2.0
+2021-07-15: added support for Catalyst 9800 Controllers