Mixed Reality OpenXR Plugin v1.11.1

[1.11.1] - 2024-08-15

• Upgraded the OpenXR remoting runtime to 2.9.4 release.
  • Fixed a deadlock issue that occurred when the GPU encoder was occupied for long durations.
  • Fixed erroneous pinch gap values leading to unwanted interactions.
• Added new OpenXRTime API that contains methods to predict display times.
• Added TryReloadAnchorStoreAsync method to XRAnchorStore which can be used to reload the anchor store when the map or anchors have been modified outside the application.
• Fixed instances of null propagation on Unity objects

Mixed Reality OpenXR Plugin v1.10.1

[1.10.1] - 2024-04-17

• Fixed a bug where RaycastSubsystem would search for a missing ARPlaneManager every frame.
• Fixed a bug where camera validation produced errors with no camera in the scene.
• Fixed a bug where the locatable camera was registered but not unregistered.

Mixed Reality OpenXR Plugin v1.10.0

[1.10.0] - 2023-12-04

• Added new APIs TrackingMapManager and TrackingMapType to allow an application to opt into running in an Application-Exclusive tracking mode on HoloLens 2.
• Upgraded the OpenXR remoting runtime to 2.9.3 release.
  • Holographic Remoting using the OpenXR API now supports the XR_MSFT_scene_marker extension.
  • Holographic Remoting using the OpenXR API now supports GPU Adapter selection through the XrRemotingPreferredGraphicsAdapterMSFT extension struct.
• Updated the plugin package to be compatible with Unity's UPM Asset Store.
• Fixed an issue where ARMarkerManager was getting enabled even when marker functionality was unavailable.
• Fixed an issue where ARMarkers were not positioned correctly for some orientations when using TransformMode.Center.
• Added additional context to MR Plugin validation tooltips.

Mixed Reality OpenXR Plugin v1.9.0

[1.9.0] - 2023-09-12

• Minimum requirement of Unity version is changed to Unity 2021.3 LTS.
• Added new APIs ARMarkerManager, ARMarker and others for QR code tracking on HoloLens 2. This feature requires version 113.2309.7002 of the OpenXR runtime on HoloLens2. This page https://learn.microsoft.com/en-us/windows/mixed-reality/develop/native/openxr-getting-started#using-preview-extensions contains instructions to enable this.
• Added new API AppRemoting.AudioCaptureMode for remoting apps to choose audio capture mode between system-wide vs. within application.
• Added new APIs AppRemoting.TryConvertToPlayerTime and AppRemoting.TryConvertToRemoteTime to convert timestamp between remoting app and remoting player.
• Fixed a bug where the AppRemoting.TryGetConnectionState function sometimes did not return the correct disconnectReason when the session was unexpectedly lost.
• Added a new Mixed Reality -> Project Setting Validations menu to select 4 new rulesets to help users setup project settings easily for different types of Mixed Reality applications.
• The following APIs are deprecated and may be removed in future releases:
  • Deprecated extension methods, such as ARAnchorExtensions, XRAnchorExtensions, and MeshSubsystemExtensions, in favor of their corresponding static functions.
  • EyeLevelSceneOrigin is deprecated in favor of MRTK3 Microsoft.MixedReality.Toolkit.Input.UnboundedTrackingMode for HoloLens 2 application using unbounded space. For other XR applications use Unity.​XR.​Core​Utils.XROrigin instead.

Mixed Reality OpenXR Plugin v1.8.1

[1.8.1] - 2023-06-21

• Restored Android support for hand tracking and controller models.
  • These features are now deprecated instead of entirely removed.
  • Using the OpenXR plugins from Unity and Meta is still recommended for these features.
• Depends on version 1.8.0 of Unity's OpenXR plugin.
  • Deprecated our HP Reverb G2 controller bindings in the Mixed Reality OpenXR plugin.
  • Recommend using the equivalent HP Reverb G2 controller bindings in Unity's OpenXR plugin with version 1.8.0 or above.
• Fixed a bug which prevented apps from building for platforms where this plugin was included, but not in use.
• Fixed a bug where errors about plugin initialization were printed when the plugin was included, but not in use.
• Fixed a bug where the EyeLevelSceneOrigin script behaved incorrectly when running in a scene without XR started.
• Fixed a bug where using this plugin with Unity 2022 and ARFoundation 5 would cause warnings.

Mixed Reality OpenXR Plugin v1.8.0

[1.8.0] - 2023-04-04

• Removed Android related XR features for hand tracking and controller models.
  • Recommend using the OpenXR plugin from Unity and Meta for these features.
• Upgraded the OpenXR remoting runtime to 2.9.1 release.
  • Fixed a bug where ARPlaneManager does not report planes after some number of Unity PlayMode remoting sessions.
  • Fixed a bug where anchors are not persisted after clearing the Anchor Store in Unity PlayMode remoting session.
• Fixed a bug where UWP project validation shows up incorrectly when OpenXR feature is disabled for HoloLens2.
• Fixed a bug where anchor creation failure leads to unnecessary spamming debugger logs.
• Fixed a bug that sometimes crashes an app on exiting due to a Unity's logging interface being used after released.
• Changed the XR validator rule based on the Unity versions with related bug fixes so that the HL2 apps can run properly without the "Run in Background" project settings.
• Fixed a bug where app remoting doesn't work when the user doesn't have permission to create regkey in HKCU.
• Fixed a bug where AppRemoting.ReadyToStart event is invoked incorrectly before AppRemoting.StopListening is used.
• Fixed a bug where some AppRemoting API methods were incorrectly enabled that should have been disabled
  • When the app is used in Unity Editor with Holographic Remoting for PlayMode feature enabled in Unity Project Settings, AppRemoting API methods should be disabled.
• Fixed a bug where haptic binding is not available for HP Reverb G2.

Mixed Reality OpenXR Plugin v1.7.2

[1.7.2] - 2023-03-03

• Fixed a bug where using some APIs from non-main threads could cause errors and incorrect behavior.

Mixed Reality OpenXR Plugin v1.7.1

Version 1.7.1 was packaged incorrectly and should be avoided.
Version 1.7.2 will be released soon as a replacement for 1.7.1.

Mixed Reality OpenXR Plugin v1.7.0

• Fixed compatibility with the 1.6.0 release of Unity's OpenXR plugin.
• Fixed bugs where Unity application crashes due to unhandled exceptions in MR plugin.
• Fixed a bug that the Unity MR plugin was not properly cleaned up due to unbalanced module ref count.
• Added new API AppRemoting.StartConnectingToPlayer for connect mode app remoting. It replaces the deprecated AppRemoting.Connect.
• Added new API AppRemoting.StartListeningForPlayer for listen mode app remoting. It replaces the deprecated AppRemoting.Listen.
• Added new API AppRemoting.StopListening to stop listening on the remote app for incoming connections.
• Added new API AppRemoting.IsReadyToStart to indicate when app remoting is ready to be started.
• Added new APIs for secure mode app remoting connections, e.g. AppRemoting.SecureRemotingConnectConfiguration and AppRemoting.SecureRemotingListenConfiguration
• Added new events AppRemoting.Connected, AppRemoting.Disconnecting, and AppRemoting.ReadyToStart in addition to existing AppRemoting.TryGetConnectionState function.

Mixed Reality OpenXR Plugin v1.6.0

[1.6.0] - 2022-11-02

• Depends on version 1.5.3 of Unity's OpenXR plugin.
  • Fixed a bug where Holographic Remoting remote app may fail connection to remoting player
• Updated the remoting OpenXR runtime to 2.8.1 release.
  • Added support for XR_MSFT_spatial_anchor_export extension in remoting OpenXR runtime.
  • Added better support for SpatialGraphNode.FromStaticNodeId in remoting OpenXR runtime.
• Added new dependency to com.unity.xr.core-utils package
  • Changed project settings recommendation for HoloLens 2 to use Unity's project validation system
• Added new API AnchorConverter.CreateFromOpenXRHandle for creating ARAnchor from OpenXR handle.
• Added new API ViewConfiguration.StereoSeparationAdjustment for adjusting the stereo separation on HoloLens 2.
• Supports running Holographic Remoting remote app in elevated process.
• Fixed a bug where remoting app build may fail if building into a non-standard exe name or building a Standalone build with "Create Visual Studio Solution" enabled.
• Fixed a bug in validator which incorrectly recommend disabling "Run in Background" settings. Enabling this setting can work around a Unity bug so that Unity app can continue rendering when the app lost keyboard focus.
• Fixed a bug where the Mixed Reality OpenXR Plugin DLL wasn't being included in the build when specific features (Hand Tracking and Mixed Reality Features) weren't checked.