First promised at Build 2019 and part of the botched HoloLens 2 demo, Unreal Engine 4 is now available for the HoloLens 2.
The SDK is now available to download on GitHub in early access, and offers developers access to the HoloLens 2’s unique features. Features supported in this branch include; streaming and native deployment, finger tracking, gesture recognition, meshing, voice input, spatial anchor pinning, and more.
The documentation on GitHub also includes an introductory talk from Microsoft Build on common development tasks.
It also includes the Apollo 11 Windows Mixed Reality sample project, which was meant to be shown at Build and which can be seen below.
When the HoloLens does ship to consumers it will come with Unreal Engine 4.23 preloaded.
In the meantime see the SDK at GitHub here (login required).