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This page documents an English Wikipedia behavioral guideline. Editors should generally follow it, though exceptions may apply. Substantive edits to this page should reflect consensus.

Shortcuts WP:RBKWP:RBK WP:ROLLBACKWP:ROLLBACK WP:ROLLWP:ROLL

You take full responsibility for any actions taken using Rollback. You must read and abide by all relevant Wikipedia policies when using this tool; failure to do so may result in you losing access to the tool or being blocked from editing.

The MediaWiki rollback user right provides users with a button that will revert, with a single click, the last edit to a given page, along with any consecutive previous edits made by the same editor to that page. It is used to undo problematic edits such as vandalism. Some counter-vandalism tools also require the user to possess the rollback user right to use the tool.

An editor with rollback user rights will see a button rollback: n edits next to relevant revisions on pages such as their watchlist, on user contributions pages (including their own), and on the edit history of pages.

MediaWiki rollback is enabled and available to all administrators automatically and can be given to other users upon request, subject to the approval of an administrator. A user who has been assigned this right explicitly is called a rollbacker. There are currently 814 administrators and 7,020 rollbackers (7,834 total; however, most of these accounts haven't edited for years), not including global rollbackers and stewards who have been assigned the right across all Wikimedia projects.

Where the following text refers to MediaWiki rollback, it means the form of rollback built in to the MediaWiki editing software. MediaWiki rollback may only be used in certain situations. As with any other tool, editors who misuse MediaWiki rollback (for example, by using it to make unexplained reversions of good-faith edits in situations where an explanatory edit summary or talk page note would normally be expected) may have their rollback rights removed. Since rollback is part of the core administrator tools, theoretically an admin could be stripped of their administrative privileges entirely to remove those tools.

Users with the MediaWiki rollback permission have extra "rollback" links next to revisions on the recent changes page, page histories, diffs, user contribution pages, and their watchlist:

• 21:49, 2 September 2010 (diff | hist) Example (talk | contribs) .. (2,953 bytes) (+1) .. Wikipedia:Rollback (this is an example) (current) (undo | thank) [­rollback: 1 edit­]

Clicking one of these links restores the page to the most recent revision that is not made by the revision's author. This appears in the page history with a generic summary that looks like this:

A link to the reverted user's contribution history is provided, so that it may be easily checked for further problematic edits. The link on the user's name does not appear if you are reverting contributions done by a user whose username is not visible, previously having been removed or suppressed prior to the reversion, the result being "a hidden user":

If the username is removed after reversion, the default edit summary remains and will need to be deleted separately in its entirety:

All edits using the MediaWiki rollback feature are tagged with the "Rollback" tag in recent changes and page histories.

Technical limitations:

• The rollback button only appears next to the most recent revision of a page.
• You cannot choose which revision will be restored. It is always the last revision not made by the author of the most recent revision. This revision may be problematic too, so be careful.
• If there are multiple consecutive edits to the page by the same author, they will all be reverted. To remove only some of them (or part of each edit), you must revert the changes manually or undo them separately.
• You cannot use rollback on a page which has only been edited by one person, as there would be nothing to revert to.
• You cannot use rollback to restore a revision that has been deleted or suppressed. Attempting to do so will display an error message.
• Rollback happens immediately; there is no confirmation or preview on the desktop site (although a page is displayed, allowing you to see the changes you have made).
• Rollbacks are automatically marked as a "minor edit".

Other tools can perform similar edits with non-generic edit summaries; see the Additional tools section below.

MediaWiki rollback can be used on the mobile web interface by enabling advanced mode in settings—which can be accessed by tapping the three-bar menu at the top left of the screen next to the Wikipedia logo—which allows access to it in page histories, diff pages, users' contributions, and users' watchlists without needing to switch to desktop view.

By default, each click on the MediaWiki rollback link requires confirmation, to prevent misclicks on mobile.

MediaWiki rollback is a fast way of undoing problematic edits, but it has the disadvantage that special tools are required to provide a custom edit summary. MediaWiki rollback may be used:

1. To revert obvious vandalism and other edits where the reason for reverting is absolutely clear
2. To revert edits in your own userspace
3. To revert edits that you have made (for example, edits that you accidentally made)
4. To revert edits by banned or blocked users in defiance of their block or ban (but be prepared to explain this use of rollback when asked to)
5. To revert widespread edits (by a misguided editor or malfunctioning bot) unhelpful to the encyclopedia, provided that you supply an explanation in an appropriate location, such as at the relevant talk page^[1]
6. With a custom edit summary explaining the reason for reverting the changes.

As with any other methods of reverting, when using rollback to restore text to a page, ensure that the content being restored does not violate any Wikipedia policies.

The built-in MediaWiki rollback link does not provide an option to provide a custom edit summary, though some user scripts and tools allow this. Use of MediaWiki rollback with the default summary for any other purposes (such as reverting good-faith changes which you happen to disagree with) is likely to be considered misuse of the tool because those edits should be explained. When in doubt, use another method of reversion, supply a custom edit summary to explain your reasoning, or start a discussion on the talk page.

Also, do not use the default rollback edit summary when it will contain disruptive text which may need to be revision-deleted. For example, avoid use of the default edit summary to revert edits made by an account with an unambiguously offensive, insulting, or egregious username that violates Wikipedia's username policy. MediaWiki rollback automatically includes the username of the editor who made the edits you are removing.

Editors must take full responsibility for any action they perform, regardless of the tools they are using. Regardless of the methods or means that are used to perform the actual reversions, Administrators may revoke the MediaWiki rollback user right, remove other tools, or impose a block in response to any editor who is persistently failing to provide needed explanations for their reverts. However, admins should normally notify or warn the editor sufficiently first, and allow the editor the time and opportunity to respond and explain their reversions before taking any action, as there may be justification of which the administrator is not aware (such as reversion of edits made by a banned user), and because the edits may have been explained in another location.

Similarly, editors who persistently engage in edit warring – especially those who have a history of doing so – may have their MediaWiki rollback permissions revoked as a precaution, regardless of the methods or means that were used to engage in the behavior. Additionally, administrators who persistently misuse MediaWiki rollback may theoretically have their administrator permissions revoked by the Arbitration Committee, solely in order to remove the rollback user rights from them.^[2]

To request MediaWiki rollback rights, ask at Wikipedia:Requests for permissions/Rollback or ask one of the administrators listed here. Any administrator may grant or revoke rollback rights, using the user rights page.

While there is no fixed requirement, a request is unlikely to be successful without a contribution history that demonstrates an ability to distinguish well-intentioned edits with minor issues from unconstructive vandalism. Rollback is not for very new users: it is unlikely that editors with under 200 mainspace edits will have their request granted. In addition, editors with a recent history of edit warring will often not be granted rollback given concerns of abuse.

If you have been granted rollback rights, you may wish to test it out using these instructions.

Because MediaWiki rollback only takes a single click, without asking for confirmation, even experienced users may sometimes accidentally click rollback when attempting to click somewhere else. If this occurs, simply revert your edit manually, with an edit summary like "Self-revert accidental use of rollback". You could rollback the rollback, but this can cause confusion for others who look at the page history.

If MediaWiki rollback is used accidentally instead of undo to revert a good-faith edit, you could take a quick look to see if there is anything in the article you could improve (like a typo), and while making that edit also add the reason for the earlier reversion. You could also explain the reason for reversion on the talk page of the user who made the edit or on the article talk page, if appropriate. Alternatively, you can follow the rollback with a dummy edit (not a null edit), with an edit summary like "Accidental use of rollback – your reason for the original reversion". This won't change the edit summary for the original rollback edit, but it will help people understand why you reverted the original edit.

Editors have the option of installing any of the multiple user scripts that enable mandatory confirmation from the user before rolling back an edit. This is enabled by default on mobile devices via the "Require confirmation before performing rollback on mobile devices" gadget.

It is possible to hide the [rollback] links at Special:Watchlist (where most accidental clicks happen) while leaving [rollback] links available in other locations (e.g., diffs). See WP:Customizing watchlists for instructions.

It is also possible to make rollback and rollback-like edits with an explanatory edit summary (instead of the default edit summary). Various editing tools let you do this; for example, see this list of tools.

To manually add a custom edit summary with MediaWiki rollback, you can hand-edit the URL. First, copy the URL of the rollback link. Depending on your browser, this might be done by control-clicking on the [rollback] link on a history page so you can copy the URL. Then paste the URL into your browser's address bar, and append &summary= followed by your desired summary to the end of the URL.

The patrolling tools Twinkle and RedWarn/Ultraviolet have rollback-like features in similar places to the MediaWiki rollback links, and (as of 2024) they also call them "rollback". Unlike MediaWiki rollback, these scripts may be used by any autoconfirmed user. The scripts do basically the same thing as MediaWiki rollback, but they differ in their choice of edit summaries, and, in some small but significant ways, in their behavior.^[3] Twinkle and RedWarn/Ultraviolet also offer additional options.

Users with the MediaWiki rollback user right and these scripts installed will see multiple "rollback" links, which can be confusing (see the picture). Twinkle's rollback feature can be disabled by unticking every box in the option Show rollback links on these pages: at Twinkle preferences.

As of now, Twinkle rollback links are available on the mobile web interface when advanced mode is enabled in the settings. However, accessing RedWarn/Ultraviolet and the full features of Twinkle requires switching to desktop view on any Wikipedia page.

Alternatively, mobile users can install a third-party patch called User:Plantaest/TwinkleMobile, which includes most of Twinkle’s features.

For further customization, you can use the following user scripts:

• User:Mr. Stradivarius/gadgets/ConfirmRollback – highly configurable rollback confirmation/hiding script; adjust rollback link behaviour by page and device type
• User:MusikAnimal/confirmationRollback – scripts to add rollback confirmation dialogs, available in mobile and desktop versions
• User:Writ Keeper/Scripts/massRollback.js — for reverting all or some of a user's contributions in one click, with support for custom summaries

• Help:Reverting#Rollback
• Wikipedia:Requests for permissions/Rollback
• Wikipedia:Vandalism
• Wikipedia:Revert, block, ignore – blatant vandalism
• The discussion that led to separate rollback permission for non-administrators
• List of users with rollback rights
• {{Rollback topicon}} a top icon template to indicate you have rollback permission – adds category to page automatically
• {{User wikipedia/rollback}} a userbox template to indicate you have rollback permission
• {{User rollbacker since}} a userbox to indicate having rollback permission and period of time
• User:The Bushranger/Why rollback is proscribed - an essay copying an explanation on ANI as to why the use of rollback still holds restrictions compared to other reversion methods