Fixes you need after upgrading Debian from 10 to 11


This is still a DRAFT document, it may miss some other important changes.

SOGo Groupware

SOGo team doesn't offer binary packages for Debian 11 yet, so you can not use SOGo at all.


Please remove these lines from /etc/dovecot/dovecot.conf:

metric imap_command_finished {
    event_name = imap_command_finished

Newer Dovecot release has different syntax for metric. Since netdata doesn't support Dovecot-2.3 yet, we prefer removing it for now.

iRedAPD and iRedAdmin(-Pro)

Debian 11 offers newer Python release, few Python modules must be re-installed:

pip3 install -U

Services must be restarted:

service iredapd restart
service iredadmin restart


Debian 11 ships php 7.4, but Debian 10 ships php 7.3. Although php7.4-fpm service is started by default after OS upgrade, but you still need to copy old php-fpm config file and restart php7.4-fpm service:

cp /etc/php/7.3/fpm/pool.d/www.conf /etc/php/7.4/fpm/pool.d/www.conf
service php7.4-fpm restart