OpenXR Specification 1.1.52

OpenXR Specification 1.1.52 (2025-09-19)

This release adds a new ratified Khronos extension, which defines a new
interaction profile intended for fallback use. It also announces the
ratification of several existing EXT extensions, fixes issues in the XML
registry, adds a new vendor extension, and modifies a recent vendor extension.

• Specification
  • New ratified Khronos extension specification: XR_KHR_generic_controller providing a
    featureful fallback interaction profile that maps easily (and in defined ways)
    to popular controllers.
    (internal MR 3018)
  • New vendor extension specification: XR_META_spatial_entity_discovery
    providing for vendor-specific spatial entity retrieval in large areas.
    (internal MR 2880,
    internal MR 4001)
  • Change: Revert XrTrackablePlaneANDROID::vertexCountOutput to a pointer, add
    note explaining that it does not match convention, and increment extension
    version number.
    (internal MR 3998)
  • Fix: Update XR_EXT_hand_interaction extension version to 2 for clarity,
    corresponding to adding XML for missing grip_surface paths for
    "/interaction_profiles/ext/hand_interaction_ext" in xr.xml.
    (internal MR 3963)
• Registry
  • New ratified Khronos extension: XR_KHR_generic_controller
    (internal MR 3018)
  • Update: Ratified XR_EXT_debug_utils
    (internal MR 3899)
  • Update: Ratified XR_EXT_render_model
    (internal MR 3900)
  • Update: Ratified XR_EXT_interaction_render_model
    (internal MR 3901)
  • New vendor extension: XR_META_spatial_entity_discovery.
    (internal MR 2880,
    internal MR 4001)
  • Change: Revert XrTrackablePlaneANDROID::vertexCountOutput to a pointer, and
    increment extension version number.
    (internal MR 3998)
  • Chore: Reserve numbers for extensions.
    (internal MR 4004)
  • Fix: Add XML for missing grip_surface paths for
    "/interaction_profiles/ext/hand_interaction_ext". Note that these paths were
    already listed in the spec prose. Update XR_EXT_hand_interaction extension
    version to 2 for clarity.
    (internal MR 3963)
  • Fix: Mark a few structure members that are bitmasks as optional, to match prose
    and/or usage intent.
    (internal MR 3973)
  • Fix: Mark XrCompositionLayerPassthroughFB.space as optional to match spec
    prose.
    (internal MR 3973)
  • Fix: Add XML for missing palm_ext/pose and grip_surface/pose paths for
    "/interaction_profiles/logitech/mx_ink_stylus_logitech". Note that these paths
    were already listed in the spec prose.
    (internal MR 3996)