When you purchase a license, you pay to get a license for the current IMatch version. Like you would buy a book.
If you want access to a newer major version and continuous support from me, you buy a license for the new major version when it comes out.
IMatch does not use a subscription-based license model and will not stop working when you don't buy the upgrade.
If you think you have not got enough mileage out of your license purchase, use IMatch for a couple of months longer.
The last paid upgrade for IMatch was in June 2017, 13 months ago.
Assuming you've bought an upgrade on the first day for 69$ you've paid 5,30$ per month to use my software and my support.
That's less than you pay for one coffee at Starbucks. And less than a Big Mac.
For details about my fair upgrade and update policy, see
https://www.photools.com/shop#a_upgpol.