Dovecot, which is a secure IMAP server, released version 2.4.0 on 24 January 2025 and a minor revision of 2.4.1 on 28 March 2025. As such, I recently decided to update my instances from the 2.3 branch (version 2.3.21.1 to be exact) to this new 2.4 branch. Though major revision updates can often be problematic, ...| The Z-Issue
Dovecot CE Documentation| doc.dovecot.org
Step-by-step guide explaining how to upgrade from Debian 12 Bookworm to Debian 13 Trixie| Frederik Himpe