Received email reply from Autel, re Beta firmware.
"Thank you for reaching out to us at Autel Robotics Support. We have closed this round of beta testing for version 1.3.3 in hopes we can finalizing an public version. We have not been given any details as to when this may be , all we know is that our development team is working very hard on newer firmware.
I do apologize for any inconvenience this causes, If you have any more questions or concerns please let me know."
So there you have it. They might be releasing the new firmware to the masses soon!