15 Feb
2017
15 Feb
'17
2:31 p.m.
2017-02-15 13:27 GMT+01:00 Aki Tuomi <aki.tuomi@dovecot.fi>:
For good pointers, see http://wiki.dovecot.org/Upgrading
it's not complete, but it should give you some idea.
I've already read that, and as wrote previously, everything broke down. dovecont -n wasn't able to convert the configuration file and dovecot wasn't started properly. The only way to fix was to downgrade.
As this is a production server, I would like to avoid this kind of issue.....