Core v4.0.0-pre.2, Input v4.0.0-pre.2, SpatialManipulation v4.0.0-pre.2, UXComponents v4.0.0-pre.2, UXComponents.NonCanvas v4.0.0-pre.2, UXCore v4.0.0-pre.2

[keveleigh]

[org.mixedrealitytoolkit.core 4.0.0-pre.2] - 2025-12-05

Added

• Added input action focus handling to disable controller/hand tracked state when the application goes out of focus. PR #1039
• Added ToInteractorHandedness extension for XRNode. PR #1042

Changed

• Updated the MRTK Default Profile to use the Unity XR Hands subsystem by default instead of the Microsoft OpenXR Plugin subsystem. PR #973
• Updated the minimum editor version to 2022.3.6f1 PR #1003

Removed

• Removed ITrackedInteractor, as it was supporting an unused codepath and there are better ways to get this data (like querying the attach transform). PR #1044

Deprecated

• Deprecated IHandedInteractor, as its info is now queryable directly from IXRInteractor's handedness property. PR #1042
• Deprecated FindObjectUtility, as it was a backwards-compatibility layer for pre-2021.3.18. Since our min version is now 2022.3, we can just call the API directly. PR #1058

[org.mixedrealitytoolkit.input 4.0.0-pre.2] - 2025-12-05

Changed

• Updated the minimum editor version to 2022.3.6f1 PR #1003
• Split out mappings for "airtap" and "grab", as well as mapping other bespoke interaction profile actions (like those provided by the Hand Interaction Profile). PR #1040

Deprecated

• Deprecated IHandedInteractor across the interactor implementations, as its info is now queryable directly from IXRInteractor's handedness property. PR #1042

Removed

• Removed HandNode property and field from HandModel, as it was largely unused. PR #1045

[org.mixedrealitytoolkit.spatialmanipulation 4.0.0-pre.2] - 2025-12-05

Changed

• Updated ObjectManipulator and ObjectManipulatorTests to be compatible with renamed rigidbody properties in Unity 6.
• Updated the minimum editor version to 2022.3.6f1 PR #1003

[org.mixedrealitytoolkit.uxcore 4.0.0-pre.2] - 2025-12-05

Changed

• Updated the minimum editor version to 2022.3.6f1 PR #1003
• Updated InteractablePulse to work across all IXRInteractor implementations, instead of just MRTK-specific IHandedInteractor implementations. PR #1042

[org.mixedrealitytoolkit.uxcomponents 4.0.0-pre.2] - 2025-12-05

Changed

• Updated the minimum editor version to 2022.3.6f1 PR #1003

[org.mixedrealitytoolkit.uxcomponents.noncanvas 4.0.0-pre.2] - 2025-12-05

Changed

• Updated the minimum editor version to 2022.3.6f1 PR #1003

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This discussion was created from the release Core v4.0.0-pre.2, Input v4.0.0-pre.2, SpatialManipulation v4.0.0-pre.2, UXComponents v4.0.0-pre.2, UXComponents.NonCanvas v4.0.0-pre.2, UXCore v4.0.0-pre.2.