I was just being cheeky with a catchy headline 😛
What I mean is that say I buy Calendar plugins today. Then I dont update at all for the next 12 months, then I login to update, and find out I am stuck on the original plugin I bought, I have no access to all the updates that I paid for in those 12 months because you lock me out of updating.
Your licenses should be tied to a time period, your updates each timestamped, then if you have XXXX license its good for all updates put out between that 12 month period.
Otherwise you aren’t delivering the updates that person paid for in those 12 months just because they didn’t get around to updating in time.