diff --git a/CHANGELOG.md b/CHANGELOG.md
index cb7c3c65..35890493 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,7 +29,10 @@ will consitute of a breaking change warranting a new major release:
 - Request raw MTM measurement twice for IMTQ, might reduce number of times measurement could not
   be retrieved.
 - Event manager and event service have larger queues now: 45 -> 120 for Service 5, 80 -> 120 for
-  evebt manager
+  event manager
+- ACS mode changes: The ACS CTRL submodes are now modes. DETUBMLE is now submode of SAFE mode.
+- EIVE system now tracks the mode of the ACS subsyste in SAFE mode.
+
 # [v1.36.0] 2023-03-08
 
 eive-tmtc: v2.17.2