Migration help v2.0.4 -> v2.1.3

Hi all.

I’ve been using cocos2d-x v2.0.4 for the past year and I’m thinking of migrating to v2.1.3 for newer projects. I want to move to the new version because of several fixes that I need.
So my question is, are there any important features that I need to know before I use v2.1.3 in my projects? For one, I know that there’s this support for Spine and the new Asset manager thing.

I’m mainly interested on iOS, Android, and win32 changes. thanks in advance.