Can’t wait till the latest version of digiKam appears in the official Ubuntu software repositories? You don’t have to: using the personal package archives (PPA) provided by the Launchpad service, you can install the latest release of digiKam with a few simple commands. Before you proceed, though, remove any previous version of digiKam installed on your machine. Also, to be on the safe side, delete all the related configuration files. You can do that using the Ubuntu Tweak tool.
Now you are ready to install the most recent version of digiKam. First, add the PPA containing the latest digiKam packages and the required libraries:
sudo add-apt-repository ppa:kubuntu-ppa/ppa
sudo add-apt-repository ppa:philip5/kde44
Update then the repositories:
sudo apt-get update
And install the digikam package:
sudo apt-get install digikam
That’s all there is to it. Launch digiKam by choosing Applications | Graphics | digiKam and enjoy the latest and greatest version of this powerful photo management application.