diff --git a/CHANGELOG.md b/CHANGELOG.md
index f7742cb5..f4380e82 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,8 +10,16 @@ list yields a list of all related PRs for each release.
 
 # [unreleased]
 
+## Changed
+
 - Startracker temperature set and PCDU switcher set are diagnostic now
 
+## Added
+
+- Added new heater info set for the TCS controller. This set contains the heater switch states
+  and the current draw.
+  PR: https://egit.irs.uni-stuttgart.de/eive/eive-obsw/pulls/351
+
 # [v1.20.0] 2023-01-24
 
 ## Added