2.1 to 2.2.31 on new server?

[Alexander Dalloz]

Am 12.08.2017 um 10:57 schrieb voytek at sbt.net.au:
> I have a Centos 6 server with Dovecot 2.1.17/mysql/virtual domains
> 
> I'm setting a new Centos 7 server, and, aim to install 2.2.31 from Ghetoforge
> 
> dumb question, can I install 2.3 on new server, then, copy old
> /etc/dovecot tree to new /etc/dovecot ?
> 
> appreciate any tips and advice,
> 
> V

There are several config option changes between dovecot 2.1.x and 2.2.x 
(you certainly did not mean 2.3, right?), so you better review your 
current settings and compare them with /etc/dovecot/conf.d/*.conf files 
on a fresh install.

I am always when updating doing a diff between the older version 
original config files and those from newer dovecot release to see what 
kind of option may have changed or have been added.

Alexander