Packages for the May updates of the KDE Platform, Workspaces and Applications 4.8.3 are available for Kubuntu 12.04 in the official repositories. As long as the precise-updates pocket is enabled (this is the default) you should receive this release as part of your normal system updates.
Many thanks go to Jonathan Kolberg, Philip and Rohan for working on the packages!
Update: Now available in the standard updates repository. Adding a PPA is no longer necessary.
The Kubuntu community is proud to announce the release of 12.04 LTS, the Precise Pangolin: the new Long Term Support version of our friendly operating system.
See the Kubuntu 12.04 LTS Release Notes for a technical description including known issues.

Calligra has been released, KDE's document suite of applications. It has applications for word processing, spreadsheets, presentations, drawing and much more.
Take the tour to discover the many apps of Calligra.
It can be installed from the backport PPA for 11.10 and the main archive for our development release.
Kubuntu will have a new sponsor in Blue Systems from the 12.10 cycle starting in May. Kubuntu is a community led project to create a KDE flavour as part of Ubuntu. Our sponsor since it started has been Canonical who are now moving to focus on their Unity flavour. We would like to thank Canonical for this kind support and wish the best success for the Unity flavour (also called Ubuntu).
Bugs in the packaging should be reported to kubuntu-ppa on Launchpad. Bugs in the software to KDE.