How do I install/upgrade to KDE 4.9?

I want to install and test KDE 4.9 from my Ubuntu 12.04. How can I install KDE 4.9 in Ubuntu? Is there a PPA available?


KDE 4.9 is available in the Backports PPA from Kubuntu!

This is the "official" Kubuntu Team PPA.

To install/upgrade, open a terminal and:

sudo apt-add-repository ppa:kubuntu-ppa/backports -y
sudo apt-get update
sudo apt-get upgrade