See: https://bugzilla.redhat.com/show_bug.cgi?id=1223159#c1 if you happen to encounter problems with the system notification area. As mentioned by jgrulich this issue appears limited to upgrades from the ~.5 version.
Obtained from koji... behavior is worse.. bug 1222737 not resolved. Additionally, system tray icons disappear - screen locks up, cannot access konsole via ssh. I believe the system tray issues are a result of f22-kde-theme because when I backed out the workspace, those issues remained until I was able to backout the theme.