Two questions - This will be the first year I have my phone delivered. Is signature required?
And for people using beta software, should we back out of that first? I recall having a problem setting up a phone or iPad a few years ago. Might have been because of beta software. I don't remember the details.
As long as you’re not on 16.1 you should be okay. As far as I’m aware, the RC version of 16.0 is the same as the public release so it’ll be a lower or equal build number to whatever comes on the new iPhone. If that is the case, everything should transfer smoothly.