We have some exciting news today! Interested HoloLens owners can install and try a preview build of the next update to Windows Holographic (RS4).

Visit HoloLens RS4 Preview - Mixed Reality | Microsoft Docs for instructions to download and install the preview build, as well as a list of new features, known issues, and how to file feedback. Check this page often as it will be updated regularly.

Use this forum to ask questions and get help with the HoloLens RS4 Preview. Our support team and engineers are here to help!

Thanks,
Matt


Source: Announcing the HoloLens RS4 Preview - Windows Mixed Reality Developer Forum