Yeah, dropping XP wasn't a "decision" that was made, usually OS versions get dropped by factors outside of your control, or as side-effects of compiler updates... Even for old games.
But you're in luck, because nothing had actually changed about how the game was built in 2.4 for Windows, and it turned out to be pretty simple to fix. Wouldn't be surprised if it becomes unfeasible to keep supporting it in the future, though.