iredmail-doc/en_US/howto/upgrade.debian.10-11.md

Fixes you need after upgrading Debian from 10 to 11

[TOC]

!!! warning

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.

iRedAPD and iRedAdmin(-Pro)

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

pip3 install -U web.py

Services must be restarted:

service iredapd restart
service iredadmin restart

php-fpm

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