There are four kinds of release: major releases, minor releases, bug fix releases, and beta releases. Major releases include significant new features, greatly enhancing the product, and are relatively rare - no more than one per year; often less. Minor releases add some new features, but not as significant, but more frequent than major releases. Bug fix releases do not add any new features, but correct problems with existing features. Beta releases include new or changed features for early-adopter users to test, to help us improve the product prior to a general release, i.e. a major, minor or bug fix release.
We may charge a small upgrade fee for major releases, if the amount of work put into it justifies it. However, to help you have the best software available, it is our policy that minor, bug-fix and beta release updates are always free for licensed users.