The rollback feature is available to administrators and users with the rollbacker permission on Wikipedia as a fast method of undoing edits that are blatantly nonproductive, such as vandalism and nonsense. A complete list of users with the rollbacker permission can be found in the page Special:Listusers/rollbacker. The current count is 1,880 users with rollback privileges. Rollback is also available to administrators listed on Special:Listusers/sysop.
[edit] When to use RollbackRollback is only used to undo edits that are blatantly unproductive, such as vandalism. Rollback can also be used in your own user and talk space to remove content when you don't wish to provide an edit summary. Edits by banned users may also be rollbacked in accordance with the Banning policy. Rollback must always be used with care. If you use rollback to restore text to a page, you are in effect still making that edit yourself, so you should take care to ensure the text does not violate any Wikipedia policies. When in doubt, use Undo with an edit summary instead, to explain your reasoning. [edit] When not to use RollbackIf there is any doubt about whether an edit should be rolled back, please do not use this feature. Use the undo feature instead, and add a more informative edit summary explaining your revert. Misuse of rollback may cause the feature to be revoked by an administrator. As rollback is automatically available to administrators, it is not possible to remove their rollback rights individually without also removing their administrator access. [edit] How it worksThe Rollback feature is available within the history page of an article, a diff and a user's contributions page. When an admin or rollbacker sees an unworthy change to an article (usually vandalism), as long as the change they wish to rollback is the latest edit to the article, they can click the 'rollback' link which will revert the vandal's edit. If the vandal made more than one edit to the article in a row, the version reverted to will be the latest version made by a user other than the vandal. The automatically generated edit summary for rollback looks like this:
Where User A depicts the editor whose changes are being reverted, while User B signals the editor of the version the admin or rollbacker reverted User A's changes to. Because the feature is used mostly to revert vandalism, a link to User A's contributions and talk page is also included as an easy way to issue warnings to that user. At one time there was a link beside it to block that user, although it has since been removed. In all cases the Rollback signals itself as a "minor edit", hence the bold "m" at the beginning. [edit] Benefits of the Rollback feature
[edit] Mass rollbacksIf you need to carry out a large number of non-vandalism reverts using rollback (for instance, after a discussion where it is agreed that a set of edits by an editor or bot need to be reverted), please use a script that allows custom edit summaries to be used. [edit] Custom edit summariesThe default rollback tool has a standard edit summary. Tools are available to enable custom edit summaries to be used. Two examples of such scripts are User:Gracenotes/rollback.js and User:Mr.Z-man/rollbackSummary.js. The use of custom edit summaries helps other editors when reviewing non-vandalism reverts. [edit] How to apply for rollbackAny administrator can grant rollback to a user using his or her own judgement. To grant rollback, the administrator needs to go to Special:Userrights and add the rollback permission to the user's account. You may approach any administrator and request this permission, however administrators found in Category:Wikipedia administrators willing to grant rollback requests have specifically indicated their willingness to consider such requests when approached on their talk pages (or via e-mail). Alternatively, you may file a request at Wikipedia:Requests for permissions. [edit] Practicing with the rollback toolTo practice with the rollback tool and see how it works, please see Wikipedia:New admin school/Rollback. [edit] HistoryThe rollbacker permission feature was implemented on the English-language Wikipedia following several discussions at Wikipedia:Non-administrator rollback and two major polls. Following the second poll, the feature was implemented on 9 January 2008 as noted at bug 12534, and began to be granted the same day. [edit] See also
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