Minecraft 1.13 Snapshot 17W47A was released this week, major underlying changes to the Minecraft block data are available to preview... "This snapshot should be considered "extremely, extremely experimental".
"[...] with the latest Minecraft update, released today, Windows 10 players can now strap on a headset and craft, explore and survive in three whole dimensions (four if you count time!) using the power of Windows Mixed Reality. [...] A bunch of different manufacturers - including Samsung, Acer, Dell, HP and Lenovo - have created headsets for Windows Mixed Reality, so you can choose the right one for you, at the right price.".