Shoot, I did the update earlier today on my old Note 7 and then the replacement when I got it as well. I'm sorry I didn't take a screen shot, but I'll try and remember what I can:
- Fixed Note 7's get the green battery icon, old models don't change
- Old model Note 7's will show a message urging you to exchange your device. In practice it turned on for me after restart and every time it started charging
- Security improvements (September security patch)
- Speed and UI improvements (I noticed that when there are multiple notifications from each app they now "nest" together)
I think that's about it. The update clocks in at about 404 MB