BT are pushing out a new Firmware Update to the Smart Hub (HH6A), mine got updated today to .......D038 from .....B540.
Immediate differences are to the Home Page of the Hub Manager and there seems to be a little more information on the IPv6 page in Advance Settings.
Unfortunately there is still no sign of Beam Forming (Band Steering) which was present but not enabled when the hub was launched over 2 years ago but then was removed in subsequent firmware updates. So this hub is still being sold in Currys with incorrecct specification (functionality) !