Got a glacier white PS4 Pro from Gamestop.com today and it was on 4.73. Although, now they're sold out, so dunno if they're going to restock (and with newer firmware or not).
Bought the black 500GB Slim Infinite Warfare bundle new from Walmart and it came with 4.07. It was sealed and everything looked brand new, but the date was already set when I turned it on (not sure if that's normal). It wasn't connected to the internet or anything like that, and the OS was...
Stopped receiving Street Passes earlier today on my DD-WRT router as well. I think it was around 6-7pm Eastern.
Edit: nevermind! Back to getting passes around midnight. Strange.
One time was there and they had forgotten to get it out of the freezer. Manager came over, said that and gave it to us for free still frozen to take home and eat later