> MAMEUI is currently in maintenance mode with no active development taking place. The > 64-bit version is still compiled and released when there is no breakage with the > core. > > Will the future MAME's improved built-in UI cause a breakage with the core which > results in MAMEUI and MAMEUIFX no longer being functional?
MAMEUI is already non-functional. Use something worth a damn and you won't have to waste your own time asking such questions.