Upgraded @debian , which upgraded #MariaDB to 11.8.
Noticed daily mysqldump runs into warnings.
Attempt to fix led yet to another error, caused by an old config snippet from #Znuny.
Analysis and fix in the latest #blog post.
https://www.claudiokuenzler.com/blog/1530/mysql-upgrade-unknown-variable-max-allowed-packet-znuny-config