Yeah, I just tried the release candidate two days ago, but my results with SDXL were very poor compared to Fooocus, and its missing other niceties like the known style presets, FreeU, the better Fooocus prompt expansion...
I really wanted to use Invoke for the better performance and torch.compile support, but the switch to the refiner seems slow, and torch.compile doesn't seem to work either. I need to investigate torch.compile more, but maybe they did something to the vanilla diffusers pipeline?