Do I have to upgrade?
No - you may continue using POP Peeper v5. You will have a 30 day trial and then POP Peeper will revert to the free (non-Pro) edition. Or, if you would prefer to use the Pro features for the previous version that you paid for, you may do so. Technical support will be provided for the previous version for a limited time, but there will be no more updates released for the previous version.
Older versions are available on the Download page