diff --git a/CHANGELOG b/CHANGELOG
index 1a5b94b811e4b51c1d203882fcdd90e8cadb1447..b3b45b90e40ea269631d346cb8c1875de91b1515 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -130,4 +130,7 @@
             made API requests per org user selectable
 2024-05-20: added discovery rule for switch port status       
 2024-06-23: added section cisco_meraki_org_appliance_performance (Utilization)
-            added per section cache timeout option (or more precise per api request type)
\ No newline at end of file
+            added per section cache timeout option (or more precise per api request type)
+
+2024-06-30: refactored for CMK 2.3
+            note there are many incompatible changes, so best remove the agent rules before the update and recreate them after the update