Customers who ordered any previous version before December 2013 may upgrade to version 4 for a special price and receive the upgrade information instantly after successful completion of the order. This may be done from the Buy page.
Customers who ordered previous version between December 2013 and the final release date of version 4 are eligible for a free upgrade. Also, customers with a valid subscription are eligible for a free upgrade. The upgrade information can be retrieved via our License Key Retrieval form.