Mupen64Plus-Qt Git (2019/09/19) is released. wxMupen64Plus is a basic cross-platform launcher. This was adapted from CEN64-Qt to work with Mupen64Plus.

Mupen64Plus-Qt Git Changelog:
* Add default controls dialog to help menu (closes #42)



Download: Mupen64Plus-Qt Git (2019/09/19)
Source: Here