RMG v0.8.3 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 supported 64DD games not having the transfer pak functionality enabled
Fix crash in Mario Artist Talent Studio when using mupen64plus-rsp-hle since v0.8.2
Fix frame count not increasing from 0 since v0.8.2
Fix loading save states freezing since v0.8.2
Add clear buttons to 64DD IPL settings in the settings dialog

Download: RMG v0.8.3
Source:Here