The GNOME Project has released a few days ago a new development version towards GNOME PackageKit 3.12, a graphical user interface (GUI) for the powerful PackageKit software, used under the GNOME desktop environment.
Thanks to Richard Hughes, GNOME PackageKit 3.11.3 removes the service pack and catalog support, no longer uses the deprecated libpackagekit functionality, as well as the unused PkMessage, UpgradeSystem and Werror functions.
Moreover, GNOME PackageKit can now be compiled against newer versions of the PackageKit software, and the About, Help and Quit menu entries have been standardized in the App Menu.
Last but not least, the following translations have been updated in this third development release of the upcoming GNOME PackageKit 3.12 software: Brazilian Portuguese, Dutch, Greek, Russian, Spanish, Tajik, Tamil, and Thai. More details can be found in the official raw changelog.
GNOME PackageKit 3.11.3 right now from Softpedia. Remember that this is a development version and it should NOT be installed on production machines. It is intended for testing purposes only.