-'ArticleContentViewCustom': Allows to output the text of the article in a
-different format than wikitext. Note that it is preferable to implement proper
-handing for a custom data type using the ContentHandler facility.
+'ArticleRevisionViewCustom': Allows custom rendering of an article's content.
+Note that it is preferable to implement proper handing for a custom data type using
+the ContentHandler facility.
+$revision: content of the page, as a RevisionRecord object, or null if the revision
+ could not be loaded. May also be a fake that wraps content supplied by an extension.
+$title: title of the page
+$oldid: the requested revision id, or 0 for the currrent revision.
+$output: a ParserOutput object
+
+'ArticleContentViewCustom': DEPRECATED since 1.32, use ArticleRevisionViewCustom instead,
+or provide an appropriate ContentHandler. Allows to output the text of the article in a
+different format than wikitext.