Help:Diff: Difference between revisions

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{{Hatnote|This page documents the full usage of diffs. For a simpler guide to the basics, see [[Wikipedia:Simple diff and link guide]].}}
{{Wikipedia how-to|WP:DIFF|H:DIFF}}
A '''diff''' is a web page displaying the difference between one version and another of a Wikipedia page. A particular version of a page is called a "revision"; each revision has a unique date and time of creation which can be seen in the [[Help:page history|page history]]. Clicking a "diff" link in a page's history will display the diff of two successive revisions.
Using the history of a page, it is possible to generate a diff between ''any'' two versions – select the left [[radio button]] for the older version, the right radio button for the newer version, and click {{Button|text=Compare selected revisions}}.
While editing a page, the {{Button|text=Show changes}} button displays the changes you are about to make. The diff is also shown during an [[Help:Editedit conflict|edit conflict]].
==How it looks ==