--- fixes: - | Fixes incremental MariaDB backups by switching to directory-based base backups, following official Mariabackup recommendations. `LP#2111620 `__ upgrade: - | Backup files are now stored in timestamped directories and have new filenames. This does not affect restore, as Kolla Ansible does not support automated restore; users perform restores manually. A new full backup is recommended after upgrade to ensure incremental backups work correctly.