Even if Zimbra 9 is released, I keep my production in version 8 in order not to suffer from bugs inherent to major versions release.

But until recently, I hadn’t been able to change OS version because Zimbra didn’t support CentOS 8 (released on 07/05/2019), and it’s now supported since patch 11 (released on 02/07/2020). We had to wait a little less than a year before being able to update…

From there, I was able to build a new VM and apply the “old school” migration methodology by rsync. It allowed me to see that I’ve been dragging this Zimbra platform for quite a while because the zmstat folder contains statistics going back to 16/01/2012 (Zimbra 8 was about to be released).

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