This option is to upgrade the Data Chameleon Edition.
You can upgrade any version of CatBase to the latest version (currently, Version 11). 
If you've subscribed to annual support, the upgrade is free! Go to the Downloads page to get the installer. Then, contact us to request a new license number.
NOTE: Please check the system requirements to make sure it's compatible with your current OS! The details can be found on the Downloads page.