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 Plasma 5 Beta 3 has been recently released, coming with bug-fixes, improvements for Qt5, enhancements for the kdelibs modularisation and general improvements that enables the users to improve both their applications and the user experience.
The latest version available is KDE Plasma 5 Beta 3, which has been released at the beginning on June, 2014. While we know for sure that KDE 5 will be used by default on Fedora 21 KDE, it will most likely be used also on Kubuntu 14.10.
In this article I will show you how to install KDE Plasma 5 Beta 3 on Kubuntu 14.04 Trusty Tahr and Kubuntu 14.10 Utopic Unicorn (still under development).
Note: KDE Plasma 5 cannot coexist with KDE 4, already installed on your system so it will replace it. It is advised to install KDE Plasma 5 on a virtual system, because most likely your system will get broken.
To install KDE Plasma 5 Beta 3 on your Kubuntu 14.04 or Kubuntu 14.10 system, you have to add the Kubuntu Next PPA to your system, update the local repository index and perform a normal system upgrade:
$ sudo add-apt-repository ppa:kubuntu-ppa/next
$ sudo apt-get update
$ sudo apt-get dist-upgrade
To revert the changes, do:
$ sudo apt-get install ppa-purge
$ sudo ppa-purge ppa:kubuntu-ppa/next