Just joining the Windows Insider Program, with Build 16237.
Improvements to container and virtualization, and greater pass through of the underlying hardware to the VM.
Support for non-volatile memory has been integrated, leading to the benefits of low-latency performance.
Battery Passthrough to the VM.
Enhancements to Container Networking.
As covered by Peter Bright of Ars Technica:
And the announcement on the Windows Blog: