Dear FreeSurfer Users,

I would like to know if we can do brainstem segmentation as described in the recent publication 

http://www.sciencedirect.com/science/article/pii/S1053811915001895

Author as well as FreeSurfer website mention that this feature is only available in FreeSurfer 6.0 and later version

https://surfer.nmr.mgh.harvard.edu/fswiki/BrainstemSubstructures

Where I can download this FreeSurfer 6.0?

Thanks.

Haque