OLD
From Wikanual
When interdubs is being used to post work in progress there is often need a to remove older versions from what clients will find when they come to the page. You can hide files or folders easily. Or you can move these older versions into another folder. Since many people do so and called this folder OLD, there is a shortcut in interdubs for this:
will quickly move the file or folder into a folder called OLD. Should the folder not exist, then it will be created. It is up to the preference of the user if the folder called OLD will be hidden or not. It's just a normal folder, but interdubs will display it with a grayed out icon
in the admin interface to make clear that it does probably contain the old stuff. If the name should not be indication enough.
You could also hide a file or folder in the client view.