I think that's a bit mangled wording for now. We collect noteworthy items that will be included in the *upcoming* release on top of the Download page. As long as there's no download link above features mentioned there, there is no release build of them yet. I'm not sure if there are nightlies to test new features now.
So yes, there is a version that runs on KPW, but we're not yet at a release point.
The instructions will certainly need a big overhaul when KPW/KT/K4 support is in the release builds. We're going there steadily, but we're not quite there yet.