KDE 4.8.1 plasma and applications updates are available for Ubuntu 11.10 Oneiric Ocelot and its derivatives such as ” Kubuntu, Lubuntu, Xubuntu, ..etc ” using “backport” PPA.
KDE 4.8.1 updates for Plasma and Applications are provided by “Package Archives for Kubuntu” team backport PPA. To update to the latest KDE follow the instruction down below.
Run Terminal “Ctrl+Alt+t”
sudo apt-get update
sudo apt-get dist-upgrade
source “Kubuntu news”.