RMG v0.8.1 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 incorrect usage of 'i.e' and replace it with 'e.g.' in the settings dialog
Fix 7zip archives not supporting the PPMd compression method
Fix being able to open another game while emulation is being started
Fix allowing drag and drop events while emulation is being started
Add 'Ask for confirmation on exit while in-game' setting
Migrate RMG-Audio to SDL3 (thank you @loganmc10 for the help)
Migrate RMG-Input to SDL3
Migrate RMG to SDL3
Migrate mupen64plus-core to SDL3 and SDL3_net (see mupen64plus/mupen64plus-core#1117)
Update GLideN64 and LZMA SDK

Download: RMG v0.8.1
Source:Here