RMG v0.4.7 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 diagonals not working for joystick hats in RMG-Input
Fix visualization of joystick hats in the configuration GUI of RMG-Input
Fix "Hide Cursor During Fullscreen Emulation" not working when using a Vulkan video plugin
Improve VRU initialization code in RMG-Input
Update SDL_GameControllerDB

Download: RMG v0.4.7
Source:Here