Blizzard is legendary for supporting games well after they've left store shelves. Diablo II, for instance, got a patch last June, 16 years after the action RPG shipped. However, even a committed developer has its limits. The company has announced plans to end support for both Windows XP and Windows Vista across several games, including Diablo III, Hearthstone, Heroes of the Storm, StarCraft II and World of Warcraft. This will be a "staggered process," but it's a hard cutoff once a given title loses support -- it won't run until you upgrade.