Microsoft Dynamics GP 2015 R2 is now available to download from CustomerSource (login required).
It has a release date of 29/05/2015 so it looks to have been released on Friday. I wish I had known about it as I could have spent time over the weekend taking a look. Unfortunately, I am away for work until Saturday afternoon and then the neighbours have their 40th wedding anniversary party so it may be a while until I can download it.
I’ll be trying to download it from the hotel. But unless the hotel Wi-Fi is far better than I expect, you will have to take a look for me and report back.