RMG v0.3.5 is released. Rosalie's Mupen GUI is a free and open-source mupen64plus GUI written in C++. It offers a simple-to-use user interface.

RMG changelog:
Fix reset button not working properly in RMG-Input
Fix profiles not being deleted properly when clicking on cancel/close in some cases in RMG-Input
Fix paraLLEl not logging to the log window
Fix paraLLEl's odd window behavior by not saving the window size when emulation ends
Fix GLideN64 initializing a noise texture being slow (see gonetz/GLideN64#2757)
Fix issue where an unbound mapping in RMG-Input would respond to an A controller button press in-game
Fix issue where RMG-Input wouldn't save anything but the currently opened profile

Download: RMG v0.3.5
Source:Here