net-mail/dovecot-2.4.2 will be stabilized soon[1] and will be the first
dovecot-2.4 release that will be stable in Gentoo.
Dovecot-2.3 configuration settings will not work with Dovecot-2.4 and manual intervention is required for the upgrade. Please read
https://doc.dovecot.org/2.4.2/installation/upgrade/overview.html
before upgrading your dovecot instance.
We strongly recommend finalizing your Dovecot 2.4 configuration on a test system before upgrading any production systems.
The following steps typically make the upgrade process easier:
1. Make a note of your current configuration by running doveconf -nP 2. Stop the dovecot daemon 3. Move ALL your configuration files to a temporary location 4. Upgrade to dovecot-2.4.2 5. Read the new configuration files and uncomment as necessary 6. Compare the new doveconf -n output with the old one and add missing configuration settings one by one while checking that the system works after each change
[1]: https://bugs.gentoo.org/967978
Dovecot-2.3 configuration settings will not work with Dovecot-2.4 and manual intervention is required for the upgrade. Please read
https://doc.dovecot.org/2.4.2/installation/upgrade/overview.html
before upgrading your dovecot instance.
We strongly recommend finalizing your Dovecot 2.4 configuration on a test system before upgrading any production systems.
The following steps typically make the upgrade process easier:
1. Make a note of your current configuration by running doveconf -nP 2. Stop the dovecot daemon 3. Move ALL your configuration files to a temporary location 4. Upgrade to dovecot-2.4.2 5. Read the new configuration files and uncomment as necessary 6. Compare the new doveconf -n output with the old one and add missing configuration settings one by one while checking that the system works after each change
[1]: https://bugs.gentoo.org/967978