building with 21H1 EWDK 21327.1000

I build with
msbuild /p:PlatformToolset=WindowsKernelModeDriver10.0
this version gets an error:
error MSB4062: Could not load file or assembly 'Microsoft.DriverKit.Build.Tasks, Version=10.0.0.0
Can I find out the supported PlatformToolset.

This version cannot even build its own sample projects, under …\Debuggers.…
But I can build the new samples with older 19H1 kit.