I picked up a Model X Long Range Plus yesterday with a June 2020 build date. When I updated to 2020.24.6.1 today I received notification that I can do 225 kW supercharging. The battery pack is version G as shown on the attached pictures. Greentheonly on twitter says there is an even newer pack on Tesla’s parts list for the Model X called V3. Not sure if the older Model X packs can fast charge at that rate as I haven’t seen anyone announce it.