Imatest Studio Edition support expires 1 year after purchase. You may continue to use the software indefinitely, but renewal is required in order to install any versions released after your expiration date.
Imatest Studio comes with one year of support for upgrades and new versions. The license is perpetual, meaning it will continue to work indefinitely, but in order to access new versions and upgrades the license must be within it’s support year.
You must renew your license if you wish to access new versions beyond your year of support. If you purchase your renewal while still under support you get an additional discount to your renewal.