Any BES issues after upgrade from zimbra 5 to 6?

[mozg31337]

Hello everyone,

We've got Zimbra NE 5.0.18 server that is integrated with the BES server and Office 2007 SP2. After a few initial hiccups the BES has been functional for the past 6 months without too many issues thanks to the zimbra support team.

Now, we are planning to upgrade the server to the latest zimbra 6 and I was wondering what would be the best way to go about doing that. Did anyone upgrade from version 5 to 6 with the BES? Any issues that I should anticipate? What are the steps to run a successful upgrade? Should I just upgrade the server side and then install the latest BES connector, or would I need to reinstall the BES server and the connector from scratch?

Any help would be highly appreciated.

Many thanks

Andrei