[email protected]

## [4.0.3] - 2021-04-22
### Fixes
* Minor fix to deprecation messaging for Windows Mixed Reality.

## [4.0.2] - 2021-04-16

### Fixes
* When using `XRLoaderHelper`, Subsystems are now correctly removed from the cached subsystems map once they are destroyed.
* Fixed an issue where a `NullReferenceException` could be thrown if a Package Manager query failed but returned completed when updating known packages.
* Fixed an issue where `Plug-in Provider` user interface documentation link redirected to an old version of the documentation.
* Fixed an issue where `TryAddLoader` could ignore the safety checks when modifying the registered loaders in the editor during playmode.
* Fixed an issue where `TryRemoveLoader` could remove a registered loader even if the loader is still in the list of `currentLoaders`.

### Changes
* Add `Open XR` to the list of known plug-in providers when on Unity version 2020.3 and above.
* Added additional safety checks to the behaviour of `TryAddLoader` and `TryRemoveLoader` in the editor. Both now user `EditorApplication.isPlaying` instead of `Application.IsPlaying` when determining whether the editor is in play mode.

CHANGELOG.md

@@ -4,6 +4,23 @@ All notable changes to this package will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [4.0.3] - 2021-04-22
+### Fixes
+* Minor fix to deprecation messaging for Windows Mixed Reality.
+
+## [4.0.2] - 2021-04-16
+
+### Fixes
+* When using `XRLoaderHelper`, Subsystems are now correctly removed from the cached subsystems map once they are destroyed.
+* Fixed an issue where a `NullReferenceException` could be thrown if a Package Manager query failed but returned completed when updating known packages.
+* Fixed an issue where `Plug-in Provider` user interface documentation link redirected to an old version of the documentation.
+* Fixed an issue where `TryAddLoader` could ignore the safety checks when modifying the registered loaders in the editor during playmode.
+* Fixed an issue where `TryRemoveLoader` could remove a registered loader even if the loader is still in the list of `currentLoaders`.
+
+### Changes
+* Add `Open XR` to the list of known plug-in providers when on Unity version 2020.3 and above.
+* Added additional safety checks to the behaviour of `TryAddLoader` and `TryRemoveLoader` in the editor. Both now user `EditorApplication.isPlaying` instead of `Application.IsPlaying` when determining whether the editor is in play mode.
+
 ## [4.0.1] - 2021-01-22
 * Changed `activeLoaders` to instead of returning a shallow copy, it will now just return a read only list to prevent additional garbage collection.
 * Changed the behavior of `TryRemoveLoader` to return `true` if the loader is no longer present in the list even if it wasn't present to begin with.

Editor/Metadata/KnownPackages.cs

@@ -39,6 +39,27 @@ static List<IXRPackage> InitKnownPackages()
         {
             List<IXRPackage> packages = new List<IXRPackage>();
 
+#if UNITY_2020_3_OR_NEWER
+            packages.Add(new KnownPackage() {
+                metadata = new KnownPackageMetadata(){
+                    packageName = "Open XR Plugin",
+                    packageId = "com.unity.xr.openxr",
+                    settingsType = "UnityEditor.XR.OpenXR.OpenXRPackageSettings",
+                    loaderMetadata = new List<IXRLoaderMetadata>() {
+                    new KnownLoaderMetadata() {
+                            loaderName = "Open XR",
+                            loaderType = "UnityEngine.XR.OpenXR.OpenXRLoader",
+                            supportedBuildTargets = new List<BuildTargetGroup>() {
+                                BuildTargetGroup.Standalone,
+                                BuildTargetGroup.WSA
+                            }
+                        },
+                    }
+                }
+            });
+#endif
+
+#if !UNITY_2021_2_OR_NEWER
             packages.Add(new KnownPackage() {
                 metadata = new KnownPackageMetadata(){
                     packageName = "Windows XR Plugin",
@@ -56,6 +77,7 @@ static List<IXRPackage> InitKnownPackages()
                     }
                 }
             });
+#endif
 
             packages.Add(new KnownPackage() {
                 metadata = new KnownPackageMetadata(){