KDE 4.2: Released on the 27th January 2009KDE 4 is the most recent KDE release. On the 27th January 2009, the KDE team released KDE 4.2. This introduced many new features and fixed stability problems. It is now very feature-full, close to the amount KDE 3 has. If you prefer KDE 3, the older, more stable version, look here. If you want to be on the absolute bleeding edge, a SVN repo is available.

KDE is the K Desktop Environment, a popular choice with many Linux users. KDE is sometimes depicted as "Windows like" because it has a panel at the bottom of the screen. This version of KDE is quite old, but very stable, which many people like. If you want KDE 4, the newest version of KDE, see this tutorial