Congratulations to Debian on their most recent release, Debian 7.0 ("wheezy"). Debian 7.0 has been in development for over two years and is the product of almost a thousand volunteer developers and other contributors from around the world. We wish them many more successful releases in the years to come. Congratulations!
Packages for the release of KDE SC 4.10.3 are available for Kubuntu 13.04, 12.10 and 12.04. You can get them from the Kubuntu Updates PPA for 13.04 and from the Backports PPA for 12.10 and 12.04.