This is a maintenance category, used for maintenance of the Wikipedia project. It is not part of the encyclopedia and contains non-article pages, or groups articles by status rather than subject. Do not include this category in content categories. This is a hidden category. It is not shown on its member pages, unless the corresponding user preference (Appearance → Show hidden categories) is set.

An article is automatically added to this tracking category when the article includes {{ e17}} or {{ ethnologue17}} or when its {{ infobox language}} includes |ref=e17.

Old references should generally be updated to a reference to a later Ethnologue or to another reference. But there are a couple reasons why an old ref may be desired: An undated population figure or extinction may have been copied over since E17 (but not E16), and the out-of-date citation will provide some indication of how dated the figure is, or a date for the last speakers may be given.