Khronos have just put a press release up on their site:
Hardly unexpected, but it’s great to see it finally come out. It’s worth noting that although they’ve done the PR, as of this writing the specification itself still says that it’s “Final Draft”. [UPDATE the official link for the spec is now https://www.khronos.org/registry/webgl/specs/1.0/. Googling for it currently turns up https://www.khronos.org/registry/webgl/specs/latest/, which still says "draft", but Khronos are working on that. For now, if you want to reference the draft, use the URL with 1.0 -- that's more specific and thus future-proofed anyway, I suppose.]
Particularly fascinating, however, is a line right at the end of the press release:
I know a lot of people have been hoping for that!