We have been evaluating Zimbra and it has been chosen to take the place of our current email and calendering programs. We are running Network Trial version 4.5.5 for our testing and I see that 4.5.7 has been released. We would like to see how an upgrade goes. I would also like to install the beta version 5.0 to see some of it's new features. I am wondering if there is any documentation on performing an upgrade. Does it keep your server settings and do you have to install the updates in order? Meaning, can I skip a version and go directly to the version I want. By the way, I am so excited about becoming a Zimbra Administrator for our company.