You can download it from here.
You can read about the new features coming in my Dynamics GP 2016 R2 Feature of the Day series of posts.
Pam highlights that starting next week, the Support team will post additional technical content in their Blog Series
Dynamics GP is moving, following partner and customer feedback, to annual releases. There was a recent roadmap released which you can see here.
Microsoft are currently working on GP Next and this is your opportunity to help shape the future functionality using Microsoft Connect. I would recommend you use that site to request features or enhancements which you would like to have included in Dynamics GP.
I’m about to drive home from client site, so I can’t get my hands on it for another 7 hours or so 🙁