There was a bunch of other fixes, can’t tell you exactly which games were impacted, neither if it didn’t cause regression elsewhere, however that’s a good news since SF3 is one of the best games the Saturn gad to offer.
Btw, the -ext512K is because Yabause/YabaSanshiro/Kronos support all type of external backup memory (512K/1M/2M/4M), however i select the smallest type by default when you set Addon Cartridge to auto (and the game doesn’t need a special cartridge), because that’s the one used in mednafen, and honestly the other types are kinda overboard.
. If you open an issue, don’t forget to mention if it is about the libretro port or the standalone version.