Actually the master branch is for 3.3.x and the 3.2.x's one it is features frozen, also.If you want to contribute a new feature it will go into the 3.2.x development branch ( master).
That's 3 months from now. 3.2 is still in it's first RC since June and still has several issues. This could lead to the weird situation where the latest stable version isn't maintained anymore... I think that's not the goal.End of Maintenance (EOM): December 2016