As predicted, RHEL9 was released today... as was RHEL 8.6 and Fedora 36. Big release day. Here's a marketing video on the new release. I'm sure more videos, some with actual technical content, will follow.
UPDATE: But not really. They announced today and in the announcement they said, "in the coming weeks". But during their first day Red Hat Summit keynote, Mike McGrath said it would be out "next week". I'm going with the later although we'll just have to wait and see.
I haven't really seen anyone mention that RHEL 8.6 was released but logging into my Red Hat account and checking the available download media, 8.6 iso were posted today. When last I checked (late in the day), the 8.6 docs hadn't been posted yet and the 8.6 Beta docs were still listed. I'd expect that to be resolved by tomorrow.