I downloaded the latest source files yesterday and rebuilt what I could (I could rebuild UFO but not some other parts), and then used the new executable in the most recent installed windows version. I also downloaded the development windows version last night which should have about the same result.
However, my game crashes on June 13 no matter what. Nothing happens for months first, no missions whatsoever (and I tried to create more bases with radars even), for a few months, and then crash to windows. On my linux machine, I can't get the missions to work, but that's another issue.
Any ideas?