Update CHANGELOG.md (#16680)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: community-scripts-pr-app[bot]

CHANGELOG.md

@@ -536,6 +536,10 @@ Exercise vigilance regarding copycat or coat-tailing sites that seek to exploit
 
     - docuseal: use DocuSeal's patched PDFium build to fix service start [@MickLesk](https://github.com/MickLesk) ([#16673](https://github.com/community-scripts/ProxmoxVE/pull/16673))
 
+  - #### ✨ New Features
+
+    - update authentik to 2026.8.0 [@thieneret](https://github.com/thieneret) ([#16674](https://github.com/community-scripts/ProxmoxVE/pull/16674))
+
 ## 2026-08-21
 
 ### 🚀 Updated Scripts