Minor Versions and Builds are always free.

Major Versions - Ongoing maintenance for product technologies occasionally requires that we charge a discounted fee for major upgrades. See How do I purchase discount upgrades?

Platform Migration - Some of the products we offer are similar to one another, but are designed to be used on different platforms (example: WebMenu for ASP and WebMenu for ASP.NET). As these products are separately maintained and supported, they are not considered upgrades to one another.