Word came to me first from Juggernutz Ivanovic via IM, and then from a blog post by the inimitable Crap Mariner. Heading to the Phoenix/Firestorm web site turned up an announcement and a place to download it: the release version of the Firestorm client.
It includes changes made to avoid deprecated OpenGL calls, which makes Crap very happy and I'm sure will make many other people happy as well. (Problems with those deprecated routines drove some people to 1.x clients, which deprived them of some lovely rendering, which you can see examples of on Crap's blog, and other features.)
If you've yet to try Firestorm, now would be the time to do it. I think you'll be pleased.