http://www.steelbeasts.com/updates/S...ease_Notes.pdf
They also have started to released pieces of the new version, 2 of 9. This is to reduce stress for their servers on release day of the full update, until then they want to release most parts of the update. There will be the option to order a DVD+download option, or just the download version.
The new program is ready, as far as I understood, the delay (release was intended for today) is due to problems with their download shop.