The new macOS builds require at least macOS 10.10, which should work on the vast majority of macOS/OS X machines. All external libraries are compiled statically so there are no dependencies for the build. The shared builds include dylib's, but they do not depend on anything external.
With the release of 3.3.4 several of the old libraries were dropped, they were:
- Game Music Emu
- OpenCORE AMR
- VisualOn AMR-WB
So far Xvid, Speex, and OpenCORE AMR have been added back in. You can always find the libraries included in the readme for the build.