UniVerse upgrade

One of my customers has declared end-of-life on their Windows 2012
server upon which we have run 11.3.1 for 10 years or so.?? The new server
will be Windows 2022.?? 11.3.1 is not listed as certified for 2022
server.?? Can I have the IT department move our 11.3.1 system to the 2022
server and then install the 11.3.5 to which we are upgrading while we
continue to operate on the old server??? Will programs have to be
recompiled and recataloged on the new server or will the map still be
valid??? Has an upgraded python been included with the UniVerse download
and will it be added or replace the current python?

Thanks,

Dale