'What this means is that when an author archives a file, for most intents and purposes, it is now gone and removed from the files tab, but it can still be downloaded via a collection and the metadata (information) about the file is still in the database. via the API,' reads the long post announcing the policy change. 'Instead of permanently removing a file, mod authors can now choose to archive it which will move it into a file archive and make it impossible to download directly unless specifically requested e.g.