From Versions 2.2, 2.1 and 2.0
Version 2.3 is free for all users of versions 2.2, 2.1 and 2.0. Just download and install version 2.3 and the license will carry over from Versions 2.2, 2.1 and 2.0. Do not uninstall the previous version or you will have to re-enter the license information. You do not have to reinstall the Excel Add-In.
From Earlier Versions
A license must be purchased for version 3.2. No discount is provided.