Thank you for the post. I have notified project management on this issue for further investigation. At this time, it has been reported that no enhancements, in regards to performance, were changed, but some new features from 5.3 to 5.5 could have caused a delay in updating your timeline. That is what is currently being investigated. We will have another update for Tweetcaster here soon. We apologize for any inconvenience. If you have any further questions or issues, please let us know.