The title is upstream support available, yet when I look at the tree in the article it is a 6.6 rc, and a bunch of public patches under review. I don't see a -next branch its on, and I don't see it in the 6.7 merge list.
I agree: it's not at all clear from the title, it sounds as if it's truly "upstream."
But patches based on an upstream tree (as opposed to any forks intended for Android) are pretty useful IMO. They're not accepted/landed but you can use them now and I'd wager good money that they'll continue rebasing them until they land, so you should expect to be able to use them for the foreseeable future.
Its not actually upstream, is it?
SOS then?