What is Git Flow??

Git Flow is the successful branching suggested by Vincent Driessen

This model can be acheived by using git commands any way, but to simplify git-flow toolset has been introduced which is extension to git installation

Installing git-flow

For installation Refer

Cheat Sheet of git-flow toolset

This cheatsheet seems to be very useful

My take on this

The git flow branching strategy is very effective branching strategy for the projects. If the project under development needs to support the older releases made then the git flow cab be extended with support branches For the support branches i have found useful resource over here