The KDE 4.11 series has reached 4.11.2 with bugfixes and translation updates. The backports PPA has updated the packages for (K)Ubuntu 13.04 Raring, and (K)ubuntu 12.04 Precise. It will be a safe and pleasant update for everyone.
More than 70 recorded bugfixes include improvements to the Window Manager KWin, the file manager Dolphin, the personal information management suite Kontact, and others. There are many stability fixes and the usual additions of translations.
To get started upgrading process, press Ctrl+Alt+T key combination on your keyboard to open terminal. Run command to add the Kubuntu Backports PPA:
sudo add-apt-repository ppa:kubuntu-ppa/backports
Then upgrade your system:
sudo apt-get update && sudo apt-get upgrade
That’s it. Enjoy!