Installing 4.11 beta with your distribution packages
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
Install the minimal set of packages required to run Neon:
sudo apt-get install project-neon-base
If you would like to install all the packages from the repository :
[ NOTE : This WILL take up alot of space ]
sudo apt-get install 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.
Compiling the sources
Compiling a single application against your KDE 4.9 installation
You need the Qt (>= 4.7) and kdelibs (4.8) development packages. Then follow:
Build-tool is a ruby program which will build the 4.10 beta packages. It also has some neat features like progress bars and eta for compile time. It can also automatically generate a ~/.xsessionrc which can be used by KDM when you select to boot into a "Custom" session type. That will enable you to easily get into a KDE session which was built from source, without even having to modify any of your scripts like ~/.bashrc, ~/.zshrc, etc.
Install ruby 1.9 and rubygems through your package manager. Run 'sudo gem install build-tool'. Now that build-tool is installed, we need to install the KDE recipes to have it build KDE from source. Run 'build-tool recipe add git://gitorious.org/build-tool/kde-trunk-recipe.git kde' to add the KDE recipe to the program. Then 'build-tool recipes install kde'. From there, you can run 'kde-build help' to see the commands available for the KDE recipe, as well as compile and update the git repositories. For more detailed information, visit:http://michael-jansen.biz/build-tool/quick-start.html
Ask annma on IRC #kde-quality and/or mjansen on #kde-devel (freenode) for help