Fixes you need after upgrading Debian from 9 to 10

Fixes you need after upgrading Debian from 9 to 10
- Dovecot
- SOGo Groupware

Warning

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

Dovecot

Remove parameter ssl_protocols =.
Add new parameter ssl_min_protocols like this:

ssl_min_protocols = TLSv1.2

Note: if you need to support old mail client applications which don't support TLSv1.2, you may need to set it to TLSv1.1. Please use TLSv1.2 if possible.

If you have plugin stats enabled, you need to rename it:

Old	New
`mail_plugins = ... stats`	`mail_plugins = ... old_stats`
`protocol imap { mail_plugins = ... imap_stats }`	`protocol imap { mail_plugins = ... imap_old_stats}`
`service stats {}`	`service old-stats {}` Warning: It's a dash (`-`), not underscore (`_`).
`fifo_listener stats-mail`	`fifo_listener old-stats-mail` Warning: It's a dash (`-`), not underscore (`_`).
`fifo_listener stats-user`	`fifo_listener old-stats-user` Warning: It's a dash (`-`), not underscore (`_`).
`unix_listener stats`	`unix_listener old-stats` Warning: It's a dash (`-`), not underscore (`_`).
`plugin { stats_refresh = ... }`	`plugin { old_stats_refresh = ...}`
`plugin { stats_track_cmds = ...}`	`plugin { old_stats_track_cmds = ...}`

SOGo Groupware

SOGo packages were removed during upgrading Debian, but SOGo team doesn't offer nightly build binary packages for Debian 10. We have to remove the old apt repo (/etc/apt/sources.list.d/sogo-nightly.list) and use the sogo packages offered in Debian 10 official apt repo.

rm -f /etc/apt/sources.list.d/sogo-nightly.repo
apt update
apt install sogo
service sogo restart