I need to go from a server running Zimbra 4.5.10 on Ubuntu 6.10 to a new server with the latest Zimbra on Ubuntu 8.04LTS. (Long story short, 6.06LTS wouldn't run on my hardware, then in waiting for a new Zimbra LTS build for 8.04, I let time get away and now I'm way behind.)
For the migration how-to, I'm reading:
Moving ZCS to Another Server » Zimbra :: Blog
It says I have to be running the same version of Zimbra on both systems. Am I correct in assuming 5.0.16 for 6.06LTS and 5.0.16 for 8.04LTS count as the same version?
Of course, this assumes I can get 5.0.16 running on 6.10 as I did with 4.5.10 (even though it's not officially supported). If not, is there a way to migrate just my data from one to the other (email, user lists, etc)?