What is the newest hardware/firmware version available in stores?

[Ed Look]

I just bought a HP Prime on 9/2/16 from a retail store.
I haven't opened the package yet, but since it's the transparent blister pack, I can see that the copyright year of the packaging materials is 2015.

I understand that there is a 8/29/16 version now distributed? I fear I got an old version. Is there a way to exchange this unopened, unused unit for the one that is supposed to be out now?