Installing 4.9 beta 1 with your distribution packages
There is a dedicated [kde-unstable] repository. This repo only contains KDE/Calligra beta releases (and their unstable deps); when the stable version is out, the packages are removed.
Installation steps are at:
In case you want to test Pairs alone, you can use the package from aur 'pairs-git': http://aur.archlinux.org/packages.php?ID=56310
Provides scm versions (ebuilds) for master/trunk & stable branch, betas and rc's in an extra repository (overlay). Detailed install instructions can be found here:
There is an unofficial kde-unstable/kde-testing and a kde-stable repo maintained by Rex Dieter - the place where the newest bits come for already released stuff. But Fedora Rawhide is always the first place for all builds.
Using Project Neon
Project neon will install the latest version of KDE *alongside* your current installation. This has the advantage that your main system is not upgraded, but does require a significant more amount of disk space.
Note that project neon runs with a different KDE config directory so your settings will not be transferred, this means original settings will not be affected.
First add the project neon repository:
sudo add-apt-repository ppa:neon/ppa
Then upgrade apts list of packages
sudo apt-get update
Finally install project neon:
sudo apt-get install project-neon-session project-neon-all
When at your login screen, click the blue arrow to select your Session, here select "Project Neon". To revert back to your original stable KDE setup, select "KDE Plasma Workspace" at the login screen.