The AvaStar RC has finally moved out of RC status to final version. You can read the details here: Avastar-1.2 is Out. Gaia is linking to an older video that givs an overview of AvaStar 1.1. I found it surprisingly up to date with the current AvaStar release.
The information on AvaStar 1.2 says it runs on Blender 2.70 and newer.
The listed new changes are:
- Optimized for better and easier workflows
- Support for Fitted Mesh.
- Many improvements under the hood
- Updated documentation
I find it easier to use YouTube when I want to find a particular AvaStar tutorial. See: Gapa Clary.