diff --git a/CHANGELOG.md b/CHANGELOG.md
index b9fd085c..68bb84a8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,12 @@ will consitute of a breaking change warranting a new major release:
 - Heaters set to `EXTERNAL CONTROL` no longer can be switched off by the `TCS Controller`, if
   they violate the maximum burn duration of the controller.
 
+## Changed
+
+- If a primary heater is set to `EXTERNAL CONTROL` and `ON`, the `TCS Controller` will no
+  try to control the temperature of that object.
+- Set lower OP limit of `PLOC` to -5°C.
+
 # [v7.7.2] 2024-03-06
 
 ## Fixed