This is now the full V5.5 release – it incorporates all the changes in the beta with a few fixes to problems found by our beta testers.
Confusingly, the driver still says beta, it should not. (AC, please note).
The FireWire could always transmit MIDI (after a fashion – this has now been improved).
Vsig should support 5.5, with the exception that the newer modules do not have help file entries. There will be important and good news on Vsig before too long.