March 4th, 2011. Today, KDE has released a series of updates to the Plasma Desktop and Netbook workspaces, the KDE Applications and the KDE Frameworks. This update is the first in a series of monthly stabilization updates to the 4.6 series. 4.6.1 brings many bugfixes and translation updates on top of 4.6 series and is a recommended update for everyone running 4.6.0 or earlier versions. As the release only contains bugfixes and translation updates, it will be a safe and pleasant update for everyone. KDE's software is already translated into more than 55 languages, with more to come.

To download source code or packages to install go to the 4.6.1 Info Page. The changelog lists more, but not all improvements since 4.6.0.

Official announcement:
KDE - KDE Ships March Updates

Changelog:
KDE - KDE 4.6.1 Changelog

News item:
KDE Ships March Updates, Codenamed "Helga" | KDE.news