I'd like to ask if anybody can share experiences with upgrade from Clarity version 12.1.3 (or any other 12 versions) to version 13.2 or 13.3 in case it's running on virtual machines, for 4 app servers for example.
I mean step by step how it should be generally done.
Is it working this way, that you just update first app server and for other 3 servers just duplicate virtuals and change IPs + change IPs for load balancer.. ?
Anyone who is experienced in this, or can advice any documents? I couldnt find any guide which would be helpful for somebody who has never done it yet.