Apparently Microsoft has not rolled out the official SDK.
Here's a response from Fender Studio Pro.
"We're still waiting for the final Midi 2.0 SDK"


Studio One (latest version), Win 11 23H2 , i9 -10940X 3.3 GHz, 32GB Mem, a 4K 40" monitor, PreSonus Studio Live III Console as interface/controller. secondarily test on Reaper, Cakewalk, and S1 on Surface Pro 3 Win 10 (latest versions).