In advance of the GNOME 3.6 availability, the Shotwell photo manager/organizer has been released.
The Vala-based Shotwell replaced F-Spot as the default photo organizer two years ago and it continues advancing.
Among the new features to Shotwell 0.13.0 include improved security, posting photos to Tumblr, basic straightening support, and much more.
More details on the new Shotwell release are laid out at the Yorba blog
The GNOME 3.6 release is expected on the 26th of September.