Bot Updating Documentation

images/docker-bookstack.md

@@ -203,6 +203,7 @@ We publish various [Docker Mods](https://github.com/linuxserver/docker-mods) to
 
 ## Versions
 
+* **21.12.22:** - Update db info in .env file when env vars are updated.
 * **10.10.22:** - Remove password escape logic which caused problems for a small subset of users.
 * **20.08.22:** - Rebasing to alpine 3.15 with php8. Restructure nginx configs ([see changes announcement](https://info.linuxserver.io/issues/2022-08-20-nginx-base)).
 * **14.03.22:** - Add symlinks for theme support.