The EDS is listed on the official website as EDS V9. Тo other information is provided in terms of upgrading or acquisition. I have seen this for many applications, and the only way to obtain the necessary info is by reaching out to the developers. This is the case for EDS as well, since the only thing available on their website is a button called Contact/Brochure.
Access the following page and contact the developers: http://www.melco.com/embroidery-software