Fedora 18 "Spherical Cow" has been released today, featuring the latest stable GNOME 3.6 by default and a brand new installer UI. Here are some new changes:
New Install UI
Fedora 18 introduces UEFI Secure Boot support so it can now be used on system shipped with Windows 8, as well as a new user interface for the installer (Anaconda), which is now easier to use for new users, while more advanced users can still access advanced settings:
GNOME 3.6 (with GNOME Shell as the default "shell" interface) is used by default in Fedora 18: Nautilus, GNOME Contacts, Boxes, Documents, Totem (Videos), etc. are all there.
Default Applications Shipped in Fedora 18
Fedora 18 ships with Linux Kernel 3.6 (3.6.10), but 3.7 is already offered as an update, X Server 1.13 and features default applications such as: Nautilus 3.6.3, GNOME Control Center 3.6.3, Evolution 3.6.3, GNOME Documents 3.6.2, GNOME Boxes 3.6.2, Deja Dup backup tool 24.0, Rhythmbox 2.98, Empathy 3.6.2, Firefox 18, Cheese 3.6.2, Shotwell 0.13.1, Transmission 2.72, GDM 3.6.2 and LibreOffice 18.104.22.168, among others, all on top of GNOME 3.6 and GTK 3.6.2.
Download Fedora 18: http://fedoraproject.org/en/get-fedora-options