The updated doc is 590 pages, up from 577 and 'Now supports the MIDI 2.0 Protocols' according to the new features list.

Using the MIDI 2.0 functions

This instrument supports MIDI 2.0 functionality. By connecting this instrument to a computer that
meets the MIDI 2.0 operational requirements, you can use data of higher resolution than that of
any MIDI 1.0 instrument. For more information on MIDI 2.0, refer to the MIDI2.0 Special site
( https://www.yamaha.com/2/midi-2-0/).

For details on the supported MIDI 2.0 messages, refer to the Data List.
https://download.yamaha.com/

To use the MIDI 2.0 functionality, first make settings from [UTILITY] → Settings → USB Driver
Mode to select Generic, and then connect a computer that meets the MIDI 2.0 operating
requirements.

 

I'm not certain but I don't believe Microsoft has released their MIDI 2.0 driver functionality yet as it involves rewriting a rather large portion of the driver section. This is the latest info I can find by the manager responsible

https://www.youtube.com/watch?v=-pe29zIVUCA

The doc doesn't mention it but there is a new MIDI 2.0 port that supports the UMP format the new version requires. This additional port allows drivers to support both MIDI 1 and MIDI 2.

Notice that you need to set the driver mode to Generic. I don't know if the current Steinberg drivers support MIDI 2 or not.