5.3 Alpha 4.9.1 has been released! This build focuses mainly on improvements and bug fixes (continuing on from Alpha 4.9), while there are also expansions to MIDI input support on Windows (including Lua APIs for analog input).
As mentioned earlier, we have sorted out the misunderstanding that required us to temporarily rebrand as Project OutFox, so we have returned to the StepMania name. It was all resolved amicably, and it had to be acted upon due to it being reported, so no problems there.
As always, the download links and a full changelog are on the release page. Happy Halloween!