diff --git a/CHANGELOG.md b/CHANGELOG.md
index 74bd77e3..66473ad9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,11 @@ will consitute of a breaking change warranting a new major release:
 
 # [unreleased]
 
+## Added
+
+- Added new PUS 15 subservice `DELETE_BY_TIME_RANGE` which allows to also specify a deletion
+  start time when deleting packets from the persistent TM store.
+
 # [v7.3.0] 2023-11-07
 
 ## Changed