A mod loader for Mirror’s Edge Catalyst broke in a Windows 10 update. That’s actually quite important to me, because I use a mod in order to fix a major problem (xp-gated ability upgrades) in what is otherwise one of my favorite games.

The mod loader’s author fixed it, but I wonder what the outcome would have been if this broke 15 years after the game’s release, instead of after just a few years.

Nier: Automata stopped working for me and a few older games I play lost controller support after the W10 Anniversary update.

The Creator's update, I believe, broke Fallout: New Vegas for a while -- I think some deprecated strings that identify GPUs changed, so a fallback renderer that doesn't work anymore was chosen.