diff --git a/CHANGELOG.md b/CHANGELOG.md
index 86c6228..0fba8a6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,10 +16,20 @@ list yields a list of all related PRs for each release.
 
 - COM `Submode` enum moved from subsystem module to separate definitions module and renamed
   to `Mode`. Added re-imports with the name `ComMode` in the subsystem and syrlinks module.
+- Convert various enums to proper `IntEnum`s
+- Updates for some enumerations.
+  PR: https://egit.irs.uni-stuttgart.de/eive/eive-tmtc/pulls/178
 
 ## Fixed
 
 - Eb to N0 calculation: Improve robustness against division by zero.
+- Some fixes for PCDU commands: Wrongfully packed command to switch devices off instead of on.
+  PR: https://egit.irs.uni-stuttgart.de/eive/eive-tmtc/pulls/180.
+
+## Added
+
+- Added `PcduSwitches` enum.
+  PR: https://egit.irs.uni-stuttgart.de/eive/eive-tmtc/pulls/179
 
 # [v2.19.4] 2023-03-24