We do not currently separate fixes from new feature releases in the way you are thinking. The license comes with 365 days of access to our latest work. We offer a Renewal, which allows for another 365 days of access. Anything we release within that time, you can access and have available to update the version you are working with. You can purchase more than one Renewal at a time if that helps you stay current. You are not required to purchase renewals, as the license will work forever.
