YuE2 Studio 3.8.3

Every engine runs on any x86-64 processor, with or without AVX2. The vocal separator (BSRoformer.cpp), recognition for karaoke (transcribe.cpp) and the audio.cpp server now ship a processor build for every instruction level and load the one this processor runs best, instead of the AVX2 build alone; earlier versions could crash on a processor without AVX2. The MIDI transcriber, the trainer and the style captioner (HOT-Step) already run that way. The new builds are downloaded once after the update.

The CUDA runtime, Vulkan and processor paths are unchanged otherwise. The Linux .deb and AppImage are built on Ubuntu 22.04.