An announcement (ANN) is a Usenet, mailing list or e-mail message sent to notify subscribers that a software project has made a new release version.
Mailing list announcement recipients often have a name like "toolname-announce".
The contents of an announcement usually contain a title line which contains the tool name, version, release name, and date.
Additional contents often fall into the following message sections: Some additional, optional fields might include "Highlights", "Author(s)", "License", "Requirements", and "Release History".
Announcement messages are usually sent in plain text form.