I was checking the review page here on meta, and I have noticed that one of my questions included, between the usual links I could use (e.g. edit, close, and delete), a rollback link I have never seen before in any Stack Exchange site.
While I understand what its purpose could be, I have the following questions:
- Was the link recently introduced?
- When does the link appear? Does it require a minimum reputation?
- Should the link appear in all the Stack Exchange sites, or is it only visible on this very site, for now?
- Is the link only limited to the review page?