That's a shame. I just reinstalled KSP today. But you're saying that it should work anyway even though it's saying Unsupported version? I'll be honest I didn't even try. I just closed the game.
Perhaps keeping the last 2 or 3 point releases in the betas tab like Factorio does would be a good idea.
Steam updated the game to 1.2.2 and some of the mods I'm playing with are showing as incompatible. How can I revert to 1.2.1? It's not in the betas tab.
Thanks, sorry if this is a stupid question, I haven't played KSP in a year or two.