Merged requested to merge matiasdelellis/xfce4-session:packagekit into master
Offline updates are available since systemd 183 (May 31, 2012), however it is a feature that of course is only used by Gnome.
The updates are downloaded by PackageKit (
pkcon --only-download update
gnome-software), and here we only detect that there are updates
available to change the buttons from
Update and Shutdown, and
Restart and update respectively.
Next, we must tell PackageKit that we want to apply the updates when appropriate.
If PackageKit is not installed or systemd is not used, it does not change any behavior. On the other hand, if the updates are not downloaded with any of these applications, the behavior does not change either.
Closes: #71 (closed)