Mixed Reality software overview and release history

Introduction to Mixed Reality software

Windows Mixed Reality consists of the following major software components:

Mixed Reality Portal, which provides the main Windows Mixed Reality experience

In Windows 10, versions 1709 and 1803, Mixed Reality Portal is a key component of the Windows 10 operating system and is updated via Windows Update.
In Windows 10, version 1809 and newer, Mixed Reality Portal is updated via the Microsoft Store app.

The Mixed Reality feature-on-demand package (FOD), automatically downloaded and installed during Mixed Reality Portal's first-run. More information about the FOD package can be found here
The Mixed Reality headset and motion controller driver, also known as the HoloLens Sensors driver, is the key driver package that enables Windows Mixed Reality headsets to work with Windows Mixed Reality. This is automatically downloaded and installed via Windows Update the first time your Mixed Reality headset is plugged in, and is regularly updated via Windows Update
The Mixed Reality motion controller model drivers contains the 3D models of the Mixed Reality motion controllers and needed for third-party Mixed Reality experiences. This is automatically downloaded and installed via Windows Update the first time your Mixed Reality motion controllers are paired to your PC, and is updated via Windows Update
Windows 10, version 1709 (the Fall Creator's Update) or newer contains key OS components and technologies that enable Windows Mixed Reality

In addition, using Windows Mixed Reality in SteamVR requires the following software:

SteamVR, developed and maintained by Valve Corporation that enables virtual reality apps and games on Steam. More information can be found here
The Windows Mixed Reality for SteamVR component, which bridges SteamVR with Windows Mixed Reality. More information about this component can be found on the Windows Mixed Reality for SteamVR page

Managing your Windows Mixed Reality headset:

The Device Companion App, developed and maintained by each of the headset manufacturers, provides a quick introduction to your Windows Mixed Reality headset. On headsets with built-in Bluetooth capability, the Device Companion app enables restoring Motion Controllers to their factory Bluetooth pairing. Some headsets (such as the Samsung Odyssey, and Samsung Odyssey+) also use the Device Companion App to deliver headset firmware updates from the headset manufacturer. This app is downloaded automatically the first time your headset is plugged in and can be found in the Windows Start Menu.

This driver is automatically downloaded and installed via Windows Update, but download links are provided inline:

Version	Release Date	Major changes
10.0.18362.1024	May 1st, 2019	Compatible with Windows 10, version 1809, and newer. Contains firmware update for 2017 Acer, Asus, Dell, Fujitsu, HP, Lenovo and Medion Windows Mixed Reality headsets. This firmware update improves headset display compatibility and reliability with certain graphics adapters and/or graphics drivers. Windows Mixed Reality headset platform and reliability improvements

Version	Release Date	Major changes
10.0.17763.1069	January 2nd, 2019	Compatible with Windows 10, version 1803, and newer. Headset tracking jitter and stutter fixes Flashlight mode reliability fixes
10.0.17760.1000	October 1st, 2018	Initial public release of the driver for Windows 10, version 1809. Compatible with Windows 10, version 1803, and newer. Enables new Windows Mixed Reality features, such as flashlight mode, in Windows 10, version 1809 Headset tracking and reliability improvements Motion controller tracking and performance improvements USB performance and improvements
10.0.17134.1004	April 27th, 2018	Initial public release of the driver for Windows 10, version 1803 Headset tracking and reliability improvements Motion controller tracking and performance improvements

Version	Release Date	Major changes
10.0.16299.1070	February 6th, 2018	Official support for 3Glasses Blubur S2 Mixed Reality headset
10.0.16299.1062	December 19th, 2017	Resolves HID issue leading to Something Went Wrong error code 2181038087-7 on some PCs Various stability and reliability fixes
10.0.16299.1058	December 5th, 2017	Improved headset tracking Motion controller touchpad responsiveness improvements Resolves issue where driver installation could sometimes fail Various stability and reliability fixes
10.0.16299.1042	November 21st, 2017	Resolves an issue that led to headset displays sometimes going black during use Resolves an issue that sometimes led to Motion Controllers disappearing Presence sensor performance improvements for the Dell Visor headset Various stability and reliability fixes
10.0.16299.1036	November 7th, 2017	Motion Controller throwing mechanic improvements: Velocity will now be reported properly when position accuracy is approximate, so you can now throw behind your head! Example code for throwing can be found in the "ThrowingStarter" unity package here. Open the throwing scene to get started Improved Motion Controller battery reporting Various stability and reliability fixes
10.0.16299.1012	October 17th, 2017	Initial public release of the driver

This driver is also automatically downloaded and installed via Windows Update, but download links are provided inline:

Version	Release Date	Major changes
10.0.17737.1000	October 1st, 2018	Initial public release of the driver for Windows 10, version 1809. Compatible with Windows 10, version 1803, and newer.
10.0.17079.1000	April 17th, 2018	Initial public release of the driver for Windows 10, version 1803.

Version	Release Date	Major changes
10.0.16291.1000, 10.0.16299.1012	October 17th, 2017	Initial public release of the driver

Valve's release notes for SteamVR can be found here: https://steamcommunity.com/app/250820

Our release notes for the Windows Mixed Reality for SteamVR component can be found here: http://steamcommunity.com/games/719950/announcements/