Upgrade to Debian Bookworm... not good Posted by Russell King on Monday 3 July 2023 22:39 (update Saturday 22 July) Upgrading my various systems from Debian Bullseye to Bookworm appears to have been a mistake, as I'm finding problem after problem. The first issue was with perl's DBD::mysql which is unable to connect to the MariaDB server using SSL, unless one tells DBD::mysql that SSL is optional.