All that data is lost when you migrate accounts though. I went from an old to a new 1P account and did the official way to copy (NOT exporting it to a text file and re-importing that way, actually copying it from the interface) and no version history persisted :/
Huh, yeah, I’m not seeing it there either. The macOS app is what I checked previously. iOS-only users might be able to see it at 1password.com. Weird inconsistency.
Still does not. My approach is to keep the file in OneDrive. On windows / mac it's just a file, on android it's via custom onedrive protocol handler but also seamless.
Unfortunately not for other fields like email, notes etc…
IMHO the perfect password app could just keep all previous versions of any field until the user deletes the history.