Currently a page history link emailed to a user will correctly redirect them to a mobile page, and will give them some links to follow like statistics, but will not surface any of the revision details.
This is a new feature request and is not anything intrinsically missing from the port.
Version: unspecified
Severity: enhancement
I tried mailing myself this random history link:
https://en.wikipedia.org/w/index.php?title=John_Armstrong_%28bishop_of_Grahamstown%29&action=history
It doesn't redirect; I see the full history version. We've also disabled mobile view on action=history, which may be why it's shown now. (Since we strip <form>s in the mobile HTML view, the entire history page disappears if you force it to show through the mobile processor.)