MDE 7.1.3 HF1148978 is available now. In addition to incorporating defect fixes, this HF also includes:
MDE 7.1.3 HF1148978 is Windows 10 Anniversary Update ready
For further information about support for Windows 10 Device Guard with MDE, please refer to KB86009.
IMPORTANT: Running FRP or MDE in FIPS mode on a Windows 10 system with Device Guard enabled is currently unsupported. The boot process will fail resulting in the system going into a recovery mode (the certified drivers do not currently support Device Guard).
Support for FRP/MDE in FIPS mode with Device Guard enabled is being considered for a future release.
Useful KB articles:
Group Product Manager