While we're growing very excited to see the KDE Plasma 2 tech preview release along with KDE Frameworks 5, which will hopefully be ready to try next month, for now there is KDE SC 4.11.3 to play with. KDE 4.11.3 was released on Tuesday and should take care of more than 120 bugs...
November 6, 2013
KDE 4.11.3 Clears 120+ Bug-Fixes
Read more at Phoronix