[Dovecot] Upgrading from 1.2 to 2.0

[Timo Sirainen]

On 19.1.2011, at 23.46, <list at airstreamcomm.net> <list at airstreamcomm.net> wrote:

> Our biggest question is whether we can support a
> rolling upgrade from 1.2.13 to 2.0.9, or if it would need to be an all for
> one cut.  

You can upgrade one at a time. v1.2.13 can read v2.0.9 indexes and vice versa.

http://wiki2.dovecot.org/Upgrading/2.0 lists everything important.