This template is for articles which involve an article about an evolving current event which is either changing rapidly or about which understanding is rapidly evolving. This is an advisory to readers that the article may be incomplete and subject to change.
As an advisory to editors, it may also be used in those occasions that many editors (perhaps a hundred or more) edit an article on the same day, for example, in the case of natural disasters, the death of celebrities, or other breaking news.
It is not intended to be used to mark an article that merely has recent news articles about the topic; if it were, hundreds of thousands of articles would have this template.
Generally it is expected that this template and its closely related templates will appear on an article for perhaps a day or two, occasionally several days.