As a "u1" (update 1) release, this version included specific technical fixes and driver updates: Driver Improvements : Updated the dsp56k core and Toaplan2 VDP device handling.
: Expanded the CPS-1 games table and corrected rom relationship links between "parent" games and their "clones". Database Accuracy : Refined labels for classics like Ghouls 'n Ghosts Street Fighter II' (Champion Edition) to better match original PCB information. MAMEDEV Wiki Emulator Features (MAME4droid) The version is most frequently used via MAME4droid on Android, which adds several platform-specific features: MAME for Android 0.139 - All Working Games - Databases mame 0.139u1 roms list
Update 0.139u1 specifically improved the Sega System 32 driver. Expect these to run better here than in earlier versions: As a "u1" (update 1) release, this version