add changelog entry

Signed-off-by: Brian L. Troutwine <[email protected]>

Author: blt

Diff for: CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.25.2-rc0]
+## Changed
+- Base image is now bookworm, updated from bullseye.
+
 ## [0.25.1]
 ## Removed
 - Revert PR #1148