Latest nightly is c0c34b32cfdeefc513ea3b09c13f3637366ffd62Yes using Next just double checked. On the bottom left of the screen it says 1.7.5 - Mupen64Plus-NExt OPenGL 1.0 dbba7e1
https://github.com/libretro/mupen64plus-libretro-nx/commit/c0c34b32cfdeefc513ea3b09c13f3637366ffd62
https://github.com/libretro/mupen64plus-libretro-nx/commits/mupen_next