Available from version 1.35.0 (Gerrit change 605670)
Use this hook to override or extend the revision tools available from the diff view, i.e. undo, etc.
Define function:
public static function onDiffTools( MediaWiki\Revision\RevisionRecord $newRevision, array &$links, ?MediaWiki\Revision\RevisionRecord $prevRevision, MediaWiki\User\UserIdentity $userIdentity ) { ... }
Attach hook: In extension.json:
	"Hooks": {
		"DiffTools": "MediaWiki\\Extension\\MyExtension\\Hooks::onDiffTools"
Called from: File(s): diff/DifferenceEngine.php
Function(s): showDiffPage
Interface: DiffToolsHook.php

For more information about attaching hooks, see Manual:Hooks .
For examples of extensions using this hook, see Category:DiffTools extensions.


  • $newRevision: New revision
  • &$links: Array of string HTML links
  • $prevRevision: Previous revision (may be null)
  • $userIdentity: Current user