Fresh Install or Upgrade to 3.2 Advice

[Carpenter, Troy]

Greetings all

I'm currently running Kolab 3.1 on Centos 6.4 and am looking to go to 
Kolab 3.2.  I've been putting it off, but now think it's about time (I 
know, 3.3 is right around the corner).

In the past, I've never had a good experience by simply upgrading and 
ended up with a crippled system and irate users, so I've tended to 
installing from scratch and migrating everything after ensuring it is 
working.  That also has its drawbacks.

Is there a proven upgrade path from 3.1 to 3.2?  Is it better to install 
from scratch (and having to remember all the tweaks I've done).

I'm also looking for Owncloud integration, and the only guide I've seen 
for that uses Centos 6.5 and Kolab 3.2 from dsp3.

I guess eventually the same question for 3.2 to 3.3, or even 3.1 to 3.3 
(if I decide to wait for 3.3 before upgrading).

Thanks!