Upgrading zimbra to 4.5.2
We are running Zimbra network edition 4.0.1 and downloaded the latest version 4.5.2 and ready to upgrade. I could not find any documentation to upgrade. But I think upgrading zimbra is like fresh installation. Is that correct?
Before doing that I will take my backup. Any other suggestions for a safe upgrade plese?
user accounts during upgrade
Thank you very much for your quick response.
One more question before I start upgrading. Currently I have 15 user accounts running now. What will happen to these accounts when I upgrade? Do I need to say that their accounts are going to be disabled for some time?