Check installed version:
git --version
git version 1.7.12.4 (Apple Git-37)
Install git with Homebrew:
brew install git
Add this line to your ~/.bash_profile:
export PATH="/usr/local/bin:$PATH"
Save change and apply this by:
source .bash_profile
Check your version again:
git 鈥攙ersion
git version 2.11.1