These are in no particular order, just things I'm noticing as I set up.
1. When it came to set the time, there was a notation that the device would get the time from the local wifi network. So that's new -- and something folks have asked for, though it's fairly minor. That said, mine was on pacific time when it arrived . . . . I'll leave it alone and see if it fixes itself.
Kindle does not have a Time Zone setting, so when you say Pacific time, I assume you mean
the time it would show if I lived in Pacific time zone. Seems to me if Kindle asks the WiFi network what the local time is, and your network was never told what time zone
it was in, then that might be why Kindle is not showing correct time. I cannot remember the last time I got into my router settings to check any of this, myself.
That said, I reset my Voyage recently, and the time was correct then (do not remember it notifying me about any time thing), but it has not subsequently self-adjusted to Standard time. I do not remember needing to adjust it before, or maybe just never noticed it was wrong. Seems like a bug, maybe that is what they are trying to fix with the notification, etc.
4. Device Options menu: no real difference -- still waiting for the time to update. Going to advanced options, there's a setting on the new PW called Power Saver. I suspect it acts similarly to the Oasis where it goes to deep sleep when not used for a while, which means it takes a bit longer when first waking up.
That does seem new.
6. Reading Options/Highlights & About This Book: There is no option to toggle public notes on or off. The popular highlights "feature" is still there . . I've turned it off. (I think this menu changed after the update, but I can't be sure; I didn't look at it long.)
Public Notes really does not exist any longer - there is no way to Follow or un-Follow anyone on Kindle since the redesign of kindle.amazon.com. It was a cool idea but not very usable, no need to keep a setting for it. But I would like to see them wire up a similar feature to Goodreads so that notes and highlights from people you follow there show up as you read the book. I think that would actually get used, and be a lot of fun.