RMG v0.5.5 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:
Add TryExec to desktop file (thank you @JakobDev)
Update mupen64plus-core, parallel-rsp, mupen64plus-rsp-hle, GLideN64 and SDL_GameControllerDB

Download: RMG v0.5.5
Source:Here