Help:Permalinks

A permalink is a "permanent link"; a type of URL designed to refer to a specific information item and to remain unchanged permanently, or at least for a lengthy period of time.

From MediaWiki 1.5 onwards, the current version of each page can be permanently linked to via a "permalink". This can be done via adding a Permalink Template to a page, or can be added to the sidebar of any Wikia on request.

Prior to 1.5, only old revisions could be linked to, and these were not permanent, since deletion and undeletion of a page would change the revision ID, and moving a page would change the revision ID. The "oldid" used in 1.5 will remain a permanent link unless a page is actually deleted. For Wikia that do not link to this in their sidebar, you can find the permalink to any page by clicking on "history" and choosing which revision you want to link permanently to.

You can view the revision ID of the current version of a page using the new variable.