KDE 4.3 packages are now available.
To see what's new, see the release announcement
Users of our latest development release, Karmic, can upgrade to the latest packages. Note: The last few parts are still building and will be available in a few hours.
Users of our stable 9.04 release can install it from the Kubuntu Backports PPA.
deb http://ppa.launchpad.net/kubuntu-ppa/backports/ubuntu jaunty main
It is strongly recommended that you verify the integrity of these packages by installing the archive's GPG key. You may do this by following the instructions on this page.
This archive includes a new network manager application, run "knetworkmanager" (the Plasmoid is just a dummy currently).
Packages for Jaunty are not officially supported. KDE 4.3 will be part of Kubuntu Karmic 9.10 to be officially released this October.