Pages can be Unapproved, Reviewed, or Approved. Users that are not logged in will see the latest approved page rather than the ("Draft") page with the most recent edits.
Confusingly, a page that is Reviewed is marked
[approved revision]; a page that is Approved is marked
[quality revision]; and a page that is Unapproved is marked
Some editors (Associate Editor) and reviewers (Editor-in-Chief) have the rights to mark pages as Reviewed or Approved. Others are autoreviewers: if they edit a page that is reviewed it automatically becomes reviewed rather than a draft; such edits are marked