I absolutely agree with Francis about this policy.
Part of version 6.1 is bug fixes for HTML5. I paid for Technical Communication Suite 4, which includes Captivate 6, yet I cannot get the 6.1 bug fix features. I don't understand why Adobe is treating good customers this way. I hope that Adobe will listen to customers (as they claim they do) and remedy this situation. I can understand that Adobe may want to provide new features to subscribers, but bug fixes should be made available to EVERYONE!