Red Hat's Matthias Clasen sent out the official GNOME 3.12 announcement a short time ago. Those not yet familiar with the GNOME 3.12 changes and new features can find the GNOME.org release notes.
There's already been dozens of Phoronix articles checking out and covering various changes of GNOME 3.12; just yesterday we published our features to look forward to in GNOME 3.12.
What are you looking forward to most in GNOME 3.12? Or its biggest shortcoming? Let us know as a comment to this article.