The version 4.0 update also added a new HUD-style user interface, a preview window that floats below Open dialogs, full-screen previews, and more.
Default Folder X 4.0 is priced at US$34.95 and is available for download at the St. Clair Software Web site. The upgrade costs $14.95 for users that purchased their copy of Default Folder X before June 1, 2007.