Hello, I have a question about raising the domain functional level. Our domain controllers run 2019, member servers run 2016. We have one member server running 2012 r2. We don’t use exchange and all desktops are running Windows 10 and 11. I believe the only thing that matters when raising it is that all the domain controllers are running the same version. Is it as simple as flipping it from 2012 r2 to 2016? I thought it was already raised, but as I was going over everything I saw that when things were setup, they didn’t raise it to 2016. Appreciate your help.
You should be fine. Just make sure that you don’t have any other applications that specifically require a specific FFL. This should be exceptionally, exceedingly rare if you are already at 2012r2 with no Exchange.
The only reason I bring it up is I just so happen to be working in an environment right now that has some geriatric app that at least according to the dev team prevents us from raising our FFL until they retire that app next month. Again, it is highly unlikely that you have something like this going on (you’d probably have heard and groaned about it by now), but it never hurts to be certain.