Latest stable version of Lifeograph is 1.0.0 (Released: 2013/12/08). Users of previous versions recommended to upgrade to this one. It is the biggest step (for now!) in the history of Lifeograph.
For Gtk+ 2 only users, last usable version is 0.8.2 (Released: 2012/05/10):
Ubuntu users can add Lifeograph PPA at Launchpad to their repositories list: