[Dovecot] Advise on upgrading from a jurassic version - please help.

[Timo Sirainen]

On 9.3.2012, at 2.50, Martin Mielke wrote:

> I have read the Dovecot documentation and there are instructions to upgrade from 0.99.x to 1.x and so on... my question is: can I upgrade from 0.99.11 to 2.x directly or is it a massive leap? If so, what do I have to keep in mind? This is a production system so I should not break anything... or at least have a rollback plan...

http://wiki2.dovecot.org/Upgrading/1.0 points out a few things:

 - rename .subscriptions -> subscriptions
 - rename .customflags -> dovecot-keywords
 - default pop3 UIDL format changed