See: 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.

Created: krunner crashes and will not restart after update; which causes other isssues... backout to previous version fixes

Have been testing since 21-Oct-2014 with no issues.