Adobe made the announcement in the beta forum in their communities.
Woohoo, something I never asked for but will certainly use. Just removing the disabled clips and empty tracks is very cool.
Now if only they could also un-merge clips (since merged clips break audio metadata so a mixer is basically unable to relink clips because their names and timecode change) and maybe flatten multi-cam as well, though you can already do that.
I do love that Adobe all the suddens seems to adding new features at a prodigious rate, but I just hope they will still go back and fix what is broken and has been for a long time.
