RMG v0.04 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:
Rosalie Wanders (16):
Core: add GetSaveSlot
MainWindow: use Core::GetSaveSlot
Core: add GetSpeedLimiterState & SetSpeedLimiter
MainWindow: use Core::GetSpeedLimiterState
MainWindow: use Core::SetSpeedLimiter
Core: use different command in SetSaveSlot
MainWindow: fix setting save slot
Core: remove std::cout usage
VidExt: remove std::cout usage
MainWindow: remove std::cout usage
MainWindow: slight code style changes
SettingsDialog: add Statusbar Message Duration
SettingsDialog: add RomBrowser settings to the Interface tab
KeyBindButton: clear focus on keyReleaseEvent
MainWindow: create mupen64plus directories in Init
MainWindow: change directorySettings

Download: RMG v0.04
Source:Here