KDE 4.6.2 has been released as part of monthly updates after they released 4.6.1 last month. This is the third release in 4.6.x series and it's considered as a safe upgrade to all people as it doesn't introduce new features, but instead they offer bug fixes and translation updates.
One interesting news is that they pick a nice codename for KDE 4.6.2 called Congrats which is dedicated for GNOME project which released their major release GNOME 3.0 on the same day as KDE 4.6.2 release date. It was officially announced on their web page.
The ChangeLog gives you all the changes on this release and it's not really particular interesting as there are no new features at all. Their focus right now is on future KDE 4.7.x release which is aimed on this year as well. Many new features are already being planned to be included on this release and it should be another great release from KDE project.
We shall wait and see about that later on