Bibble 5 is out ...... if anyone still cares.

http://bibblelabs.com/

Disclaimer: the author of this post, as a young man, bought a copy of Bibble 5, which was "due out any day now" and was provided with a free copy of Bibble 4 to use for the few weeks it would take until the copy of Bibble 5 he had paid for was ready. This was probably back before the dawn of time.