To revert is to undo all changes made after a certain time in the past. The result will be that the page becomes identical to how it used to be at some previous time. A partial revert undoes only some of those changes.
To revert a page to an earlier version:
- Go to the page you wish to revert, click on the History tab at the top of the page, then click on the time and date of the earlier version you want to revert to. It will not work if you click on 'cur', 'last', or "Compare selected versions".
- When the page displays, text similar to "Revision as of 23:19 Jul 15, 2003" will display. It appears below the page's title.
- Verify that you've selected the correct version, then click a link to edit the page as you would normally.
- You'll get a warning, above the edit box, about editing an out-of-date revision.
- Ignore the warning and save the page. Be sure to add the word "revert" (or "rv") to the edit summary, along with a short explanation if not obvious.
Reverts and edit conflicts
Reverts never cause an edit conflict - if between you pressing edit, and then pressing post, someone else edits the page, their edits will be silently overwritten (though still in the page history). Beware of reverting high-traffic pages! Conversely, if it looks like someone has deleted your edits, consider if it's more likely that it's one of these unfortunate revision conflicts.
On a user contributions page an admin has additional "rollback" links for contributions marked (top) (the last edit made by anybody to that article). The diff page showing the difference between an old and the current version of a page also has this link. Clicking on the link reverts to the last edit not made by the user being reverted. The feature is especially useful in the case of a known vandal, whose edits don't need to be checked before being reverted. An automatic edit summary, Reverted edits by X to last version by Y, is added. This feature cannot be used when the last two edits were by the same user, and one wants to revert to the previous version only.
If between loading the User Contributions page and pressing rollback, someone else has edited or rolled back the page already, the message Rollback failed will display with an explanation of the problem.
If the page has been created by the malicious user and nobody else has edited the page, clicking the rollback link gives the message Cannot revert edit; last contributor is only author of this article. In this case delete the page.
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