KDE is a free and open-source advanced desktop environment. It provides a Plasma workspaces and variety of applications for different cross-platforms. Now the latest KDE plasma and applications version 4.8.3 is available to update for Kubuntu 12.04 LTS Precise Pangolin and for Ubuntu Precise derivatives as well.

KDE 4.8.3 brings several bug fixes, improvements to the plasma workspaces which improves the desktop environment stability and some changes to KDE applications. Check the full list changes for this release and the Release Notes for the major release KDE 4.8.
[How To]: Update to KDE 4.8.3 On Kubuntu 12.04 LTS Precise Pangolin
sudo apt-add-repository ppa:kubuntu-ppa/ppa
sudo apt-get update
sudo apt-get upgrade
sudo apt-get update
sudo apt-get upgrade
This PPA works on Ubuntu 12.04 LTS Precise Pangolin derivatives
Download KDE 4.8.3 source code.
Compiling instruction included on the release announcements for KDE 4.8.3.

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thank you for the link..
You are welcome.
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