It is already possible to discriminate unpatrolled revisions from patrolled revisions in a few special pages, possibly depending on the wiki configuration. In particular, in WP:fr unpatrolled revisions show up in the user's watchlist and in Special:RecentChanges.
This feature is widely used in WP:fr. According to a quick poll (Wikipédia:Le_Bistro/27_juin_2011#Mini-sondage_du_jour.C2.A0:_affichage_des_modifications_non-lues), a few enhancements would be greatly welcome. In particular :
- it would be great if when viewing diffs, the unpatrolled status of the previous diff was visible — this would allow the reviewer to look at the previous diff only if it has not already been patrolled, while currently the reviewer has to look at the previous diff to know if it has been patrolled ;
- it would be nice also if unpatrolled revisions could show up in the page history as well — this would help reviewers to clean pages.