One security updates were released today on -Current as well as in -Stable. OpenSSL is now upgraded to 0.9.8p. In -Current, XOrg and Mesa were rebuilt to add more options to compilation parameter and also in driver detection preferences for NVidia card.
Other packages gets upgraded, like MySQL, Akonadi, Qt (4.7.0-based), and Soprano. I think KDE 4.5.3 on -Current will be based on Qt 4.7.x which should fix so many problems with earlier version of Qt.