Just checked in:
When editing a page or displaying its history, you now get a link "View article" / "View user page" etc. to go back to displaying the page. This is something I have missed badly because I often edit a page and need to check how the article looked before my edits, but want to keep the edit window in its current state. Now I can open a new tab with the "View article" link and compare the two.
As always, please let me know if there are any problems.
Regards,
Erik