This is the post on github and it shows a few useful and worthy features have been added.

To install on Ubuntu 14.04 (and newer – possibly older too, but I haven’t tested it):

sudo add-apt-repository ppa:git-core/ppa
sudo apt-get update && sudo apt-get install git

then you should see the newest version:

$ git --version
git version 2.9.0

Enjoy!