So, I’ve been away from SC for quite a while and would like to update from version 9.9.007 to 9.13.006. I have a couple of production apps running on 9.9.007/ PHP 7.4 (as crazy as it that sounds).
How can I upgrade in a way that I can revert to the old version if things don’t go well? I am thinking to install a fresh 9.13.006, import the apps and test. But this will likely invalidate the license on my 9.9 right? But I can always revoke the 9.13 license and get a new one for 9.9 if I need to do a maintenance on the old app right? And keep going back and forth till I can discard the 9.9 entirely?