I'm interested in upgrading from Server 10.3.1 to 10.6.1, Windows and SQL Server, to use some of the new features in Portal. My previous upgrade from 9.3.1 to 10.3.1 was an ordeal, but this upgrade sounds easy. https://enterprise.arcgis.com/en/get-started/latest/windows/upgrade-arcgis-enterprise.htm
Will I need new prvs files or license files?
One problem I had with 10.3.1 installation was that one of my locations does not have a Windows networking domain. Many places in the docs would tell me something like "Use the fully qualified domain name of the server" and I would have to figure out a way around that. Will I still be able to get around that with 10.6.1 or should my first step be to kick off a domain controller?