Packages for the release of KDE's document suite Calligra 2.8.1 are available for Kubuntu 12.04 LTS and 13.10. You can get it from the Kubuntu Backports PPA (alongside KDE SC 4.13). They are also in our development release.
Packages for the release of KDE SC 4.13 are available for Kubuntu 12.04LTS, 13.10 and our development release. You can get them from the Kubuntu Backports PPA. It includes an update of Plasma Desktop to 4.11.8.