One of the things that is covered in the article is the new ability to allow multiple apps to use the same MIDI port/device at the same time. So now Windows is multi-client.
The No. 1 request for MIDI in Windows has been to allow multiple apps to use the same MIDI port/device at the same time. We call that “multi-client.”
Microsoft
The second biggest request for MIDI was to provide better MIDI 1.0 port names. With this release, you have control over the names:
Microsoft
In-particular, we’d like to call out AMEI (Association of Musical Electronics Industry Japan) for their incredible work in testing, and for their donation of the AmeNote-developed USB MIDI 2.0 driver.