For 1 year from release it is free to migrate from 7/8 -> 10. After 1 year from release you must pay to migrate from 7/8 -> 10. Regardless of when you migrate

For 1 year from release it is free to migrate from 7/8 -> 10. After 1 year from release you must pay to migrate from 7/8 -> 10. Regardless of when you migrate, system upgrades are included for the lifetime of the device. This is a push to get everyone onto the new platform and jumpstart the ecosystem.