The inclusion of non-working "skeleton" drivers in this release allowed developers to document the existence of rare hardware, even if the emulation wasn't yet possible. For the average user, this means that while the "ROM set" might be huge, not every file corresponds to a playable game—some are there purely for scientific and historical preservation. Legacy of the 2021 Releases
Beyond new games, 0.235 introduced critical backend improvements that changed how existing libraries performed: mame 0235 roms 2021
Download MAME 0.235 from the official MAMEDev site (or a frontend like RetroArch with the MAME 0.235 core). The inclusion of non-working "skeleton" drivers in this