diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9519308..9e44016 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
-
+## Unreleased
+### General
+ - [OP-3590]: OP is now master of "aantal houders" of mandates
+ - [OP-3699]: Update aantal houders for some mandates Hasselt and Antwerp
+### Deploy instructions
+```
+drc restart migrations
+drc restart delta-producer-publication-graph-maintainer resource
+```
 ## 1.37.3 (2025-11-14)
 ### Backend
 - Added cleanup job to clean duplicated data of municipalities and provinces [OP-3676]