diff --git a/CHANGELOG b/CHANGELOG
index 3703c47261c61ddf162502e9bca10a46b69eb23b..cc4f622e2532ec3d0302a2fe83fc645128d2cfb8 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,7 @@
+2016-04-08: initial release
 2016-08-22: removed index column
 2018-08-03: code cleanup
 2018-09-04: changes for CMK 1.5.x (inv_tree --> inv_tree_list)
 2020-03-15: added support for CMK1.6x
 2021-07-10: rewritten vor CMK 2.0
+2021-07-15: added support for Catalyst 9800 Controllers