Why 2 Versions?
To help explain why we're selling P5 and P6 Beta, and to help you know if and when you should buy P6, we've created a short video:
ProPhoto 6 currently does NOT have an integrated contact form, and is lacking support for both the ProPhoto Proofing and WPML plugins. This functionality is coming soon, along with many other features and enhancements. ProPhoto 6 imports ProPhoto 5 menus, galleries and grids, but does NOT import your ProPhoto 5 design. For details on approximately when features and enhancements will be added, and in what order, check the full ProPhoto 6 roadmap.