Pathagoras is always changing. It is upgraded on a fairly regular basis as users offer suggestions to improve current features or to add new ones. It is this reason why Pathagoras is distributed only over the Internet. (No CD could ever be 'current.' As soon as one is mailed, we might have implemented a change.)
To upgrade Pathagoras, follow the steps outlined at this link.
Upgrading Pathagoras is a simple, painless process:
•Pathagoras preserves all libraries, books, settings, Instant Database records, etc. You will lose nothing when you upgrade.
•You do not have to uninstall a previous version of Pathagoras to upgrade.
•The transition from a demo version to a licensed version is seamless.
Network users: follow the special upgrade instructions to most efficiently upgrade Pathagoras in a network setting.
If you have purchased a license or are a subscriber to the program, you can also check the status of your installed version by clicking here. You will need your Serial number which you can determine though this link.