Edit: Due to the fact that this article is old, the installation instructions may not work anymore. In order to successfully install the latest version of KDE Plasma, please access the KDE tag and open the latest article (the one on top).
The latest installation instructions for KDE Plasma
Hello Linux Geeksters. As you may know, KDE 4.13 has been released on the 16th of April 2014, being the default desktop environment of Kubuntu 14.04 Trusty Tahr LTS. Among others, KDE 4.13 comes with better C++ syntax highlighting for Kate, the default text editor, Palapeli game improvements, an enhanced version of Gwenview, with support for RAW camera image files, a new version of KNotes, ported to Akonadi and Baloo as a replacement for Nepomuk.
In this article I will show you how to install KDE 4.13 / upgrade to KDE 4.13 on Ubuntu 13.10 Saucy Salamander and Ubuntu 12.04 Precise Pangolin.
To install KDE 4.13 on your Ubuntu 13.10 and Ubuntu 12.04 system, you have to add the Kubuntu Backports PPA, update the local repository index and install the kde-standard and kubuntu-desktop packages. Like this:
$ sudo add-apt-repository ppa:kubuntu-ppa/backports
$ sudo apt-get update
$ sudo apt-get install kde-standard kubuntu-desktop
If you already have a version of KDE installed, all you have to do to get KDE 4.13 is to perform a normal system upgrade:
$ sudo apt-get update
$ sudo apt-get dist-upgrade