OpenXR Specification 1.1.61

OpenXR Specification 1.1.61 (2026-07-02)

This release primarily features a number of new vendor extensions, plus one
vendor extension fix, clarifications for spatial entities, and additional sample
code cleanup. A small addition to the reflection headers is also included.

• Specification
  • Fix: Typos in enum value names for XrTrackingOptimizationSettingsHintQCOM.
    (internal MR 4186)
  • Fix: Miscellaneous non-normative fixes to the XR_EXT_spatial_entity spec
    language.
    (internal MR 4355)
  • Improvement: Improve consistency of struct initialization patterns in adoc
    sample code, using designated initializers for clarity in additional sample
    code not converted in the last release.
    (internal MR 4248,
    internal MR 4247,
    internal MR 4246,
    internal MR 4374)
  • New vendor extension specification: XR_ANDROID_spatial_discovery_bounds to
    enable limiting discovery of spatial entities to within a sphere, box, or
    frustum.
    (internal MR 3520)
  • New vendor extension specification: XR_BD_body_tracking_auxiliary_metrics
    provides additional data about body tracking state and the ability to trigger
    the runtime to begin its calibration process.
    (internal MR 3756)
  • New vendor extension specification: XR_META_hand_tracking_frequency_hint
    providing a way for applications to inform the runtime they would prefer higher
    frequency, lower latency tracking with tradeoffs.
    (internal MR 4110)
  • New vendor extension specification:
    XR_META_hand_tracking_unextrapolated_poses for use by specialized
    applications that may have additional context for hand tracking extrapolation
    not available to the runtime.
    (internal MR 4113)
  • New vendor extension specification: XR_META_hand_tracking_wide_motion_mode2
    adding another hand tracking data source that performs wider-range tracking
    even outside of the view of the cameras.
    (internal MR 4114)
  • New vendor extension specification: XR_ANDROID_google_cloud_auth to give a
    way for apps to send their Google Cloud auth info to the runtime.
    (internal MR 4200)
  • New vendor extension specification: XR_ANDROID_geospatial to convert a WGS84
    GeoPose to an XrPosef and vice-versa using vendor cloud services.
    (internal MR 4201)
  • New vendor extension specification: XR_ANDROID_geospatial_anchor to provide
    geospatial & surface anchors.
    (internal MR 4214)
  • New vendor extension specifications: XR_BD_dynamic_object_tracking vendor
    spatial sensing related extension, with related XR_BD_dynamic_object_keyboard
    (for tracking a computer keyboard) and XR_BD_dynamic_object_mouse (for
    tracking a computer mouse) extensions.
    (internal MR 3944)
• Registry
  • Fix: Typos in enum value names for XrTrackingOptimizationSettingsHintQCOM.
    Original names left as aliases for source compatibility.
    (internal MR 4186)
  • Improvement: XR_LIST_FUNCTIONS_ macros in the reflection header are now
    generated for all features, even those lacking functions.
    (internal MR 4329)
  • New vendor extension: XR_ANDROID_spatial_discovery_bounds
    (internal MR 3520)
  • New vendor extension: XR_BD_body_tracking_auxiliary_metrics
    (internal MR 3756)
  • New vendor extension: XR_BD_dynamic_object_tracking
    (internal MR 3944)
  • New vendor extension: XR_BD_dynamic_object_keyboard
    (internal MR 3944)
  • New vendor extension: XR_BD_dynamic_object_mouse
    (internal MR 3944)
  • New vendor extension: XR_META_hand_tracking_frequency_hint
    (internal MR 4110)
  • New vendor extension: XR_META_hand_tracking_unextrapolated_poses
    (internal MR 4113)
  • New vendor extension: XR_META_hand_tracking_wide_motion_mode2
    (internal MR 4114)
  • New vendor extension: XR_ANDROID_google_cloud_auth
    (internal MR 4200)
  • New vendor extension: XR_ANDROID_geospatial
    (internal MR 4201)
  • New vendor extension: XR_ANDROID_geospatial_anchor
    (internal MR 4214)
  • Schematron: Add exception for the comments of a behavior-only
    XrSpatialComponentTypeEXT.
    (internal MR 4353)

OpenXR Specification 1.1.60

OpenXR Specification 1.1.60 (2026-05-20)

This release features a new multi-vendor extension and a number of quality and
correctness fixes to the specification. A number of extensions have also been
marked deprecated.

• Specification
  • New multi-vendor extension specification: XR_EXT_haptic_parametric allows
    triggering high-fidelity haptic vibrations.
    (internal MR 3307)
  • Change: Document XR_ANDROID_trackables and its child extensions as deprecated
    by various XR_EXT and XR_ANDROID spatial entity extensions, with
    deprecation notes in the specification.
    (internal MR 4228)
  • Fix: Correct documentation for VERY_STRICT in specification/Makefile.
    (internal MR 4294,
    internal issue 2742)
  • Fix: Add missing ref pages for constants defined in XR_ANDROID_eye_tracking
    and XR_ANDROID_face_tracking.
    (internal MR 4303,
    internal issue 2741)
  • Fix: Several broken internal cross-references in extensions.
    (internal MR 4328)
  • Improvement: Clean up specification for XR_EXT_eye_gaze_interaction, and
    resolve a question previously left unspecified.
    (internal MR 3498)
  • Improvement: Improve consistency of struct initialization patterns in adoc
    sample code, using designated initializers for clarity.
    (internal MR 4231,
    internal MR 4240,
    internal MR 4243)
  • Improvement: Enable warnings as errors in AsciiDoctor builds.
    (internal MR 4294,
    internal issue 2742)
  • Improvement: Fix mouse interaction profile name & clarify scroll component in
    the XR_ANDROID_mouse_interaction extension.
    (internal MR 4297)
  • Improvement: Silence warnings when generating style guide
    (internal MR 4300)
  • Scripts: Replace findBareNormatives.sh with findBareNormatives.py to make
    it easier to run cross-platform and easier to build on top of, and populate a
    bare_normatives_allowlist.txt file to list (current) known exceptions to bare
    normative rules.
    (internal MR 4286,
    internal MR 4320)
  • Scripts: Add findBareNormatives.py to make check-spec-links.
    (internal MR 4286,
    internal MR 4286)
  • Style Guide: Update schema to document deprecation expressions referring to
    more than one extension, as well as the <extend type="command"> tag for
    extending return codes for a function.
    (internal MR 4228,
    internal MR 4228,
    internal issue 2494,
    internal MR 4009)
• Registry
  • New multi-vendor extension: XR_EXT_haptic_parametric
    (internal MR 3307)
  • Change: Deprecate HoloLens 2 related extensions.
    (internal MR 4133)
  • Change: Mark XR_ANDROID_trackables and its child extensions as deprecated by
    various XR_EXT and XR_ANDROID spatial entity extensions.
    (internal MR 4228)
  • Fix: Add comment for enum value XR_SPACE_COMPONENT_TYPE_ROOM_MESH_META in
    xr.xml.
    (internal MR 4292,
    internal issue 2740)
  • Fix: Add comment for result value
    XR_BOUNDARY_VISIBILITY_SUPPRESSION_NOT_ALLOWED_META in xr.xml.
    (internal MR 4293,
    internal issue 2739)
  • Fix: Mark XrSessionCreateInfoOverlayEXTX::createFlags as optional.
    (internal MR 4302)
  • Fix: Update XrFoveationEyeTrackedProfileCreateInfoMETA to mark flags as
    optional
    (internal MR 4317,
    internal MR 4317)
  • Improvement: Add schematron validation for optional required for empty bit
    flags.
    (internal MR 4317,
    internal issue 2745)
  • Scripts: Handle deprecation expressions referring to multiple extensions.
    (internal MR 4228)

OpenXR Specification 1.1.59

OpenXR Specification 1.1.59 (2026-04-30)

This release provides a usability improvement for the HTML spec: anchors for
symbols are now at the top of the relevant docs, rather than at the C
declaration. Clicking links in the spec will now bring you to a more useful
location in the spec so you do not miss any of the information. There is also a
new multi-vendor extension, as well as several new vendor extensions, and the
usual mix of smaller changes and improvements.

• Specification
  • Improvement: Clean up formatting for XR_EXT_hand_tracking_data_source.
    (internal MR 4218)
  • Improvement: Fix EYES_LOOK blend shape descriptions in XR_FB_face_tracking2
    specification.
    (internal MR 4232,
    internal issue 2515,
    OpenXR-Docs issue 189)
  • Improvement: Document eye rotation angles for EYES_LOOK blend shapes for
    XR_FB_face_tracking2.
    (internal MR 4233,
    internal issue 2514,
    OpenXR-Docs issue 188)
  • Improvement: Unify permission text for ByteDance spatial APIs using a shared
    spec include.
    (internal MR 4238)
  • Improvement: Move link destination for symbols (function, structure, etc.) to
    top of the marked documentation.
    (internal MR 4272,
    internal MR 4282)
  • Improvement: Change sample haptic duration from 300ns to 300ms.
    (internal MR 4281,
    internal issue 1663)
  • Improvement: Remove language describing how to enable extensions from extension
    text where it duplicated implicit validity language.
    (internal MR 4285)
  • New multi-vendor extension specification: XR_EXT_stationary_reference_space,
    providing a reference space focused solely on remaining stationary to the best
    of the runtime's ability.
    (internal MR 3021)
  • New vendor extension specification: XR_META_boundary_visibility providing the
    ability for the application to suggest hiding or showing the play space
    boundary.
    (internal MR 3249)
  • New vendor extension specification: XR_META_face_tracking_visemes exposing
    visemes data in face tracking, as an alternate or additional output besides
    blend shapes.
    (internal MR 3424)
  • New vendor extension specification: XR_META_spatial_entity_room_mesh provides
    access to room mesh and associated metadata when also using the
    XR_FB_spatial_entity vendor extension.
    (internal MR 3530)
  • New vendor extension specification: XR_ANDROID_eye_tracking for access to the
    position and orientation of the user's eyes.
    (internal MR 3773)
  • New vendor extension specification: XR_ANDROID_recommended_resolution to
    notify the application when the recommended resolution changes.
    (internal MR 3840)
  • New vendor extension specification: XR_ANDROID_light_estimation to query
    lighting information from the user's environment.
    (internal MR 3879)
  • Update vendor specification: Revision 5 of XR_FB_passthrough
    (internal MR 3682)
• Registry
  • Chore: Reserve extension numbers and adjust previous reservations.
    (internal MR 4266,
    internal MR 4276,
    internal MR 4282,
    internal MR 4253)
  • Improvement: Enforce that essentially all functions must be able to return
    XR_ERROR_RUNTIME_FAILURE.
    (internal MR 3611,
    internal issue 2345)
  • New multi-vendor extension: XR_EXT_stationary_reference_space
    (internal MR 3021)
  • New vendor extension: XR_META_boundary_visibility
    (internal MR 3249)
  • New vendor extension: XR_META_face_tracking_visemes
    (internal MR 3424)
  • New vendor extension: XR_META_spatial_entity_room_mesh
    (internal MR 3530)
  • New vendor extension: XR_ANDROID_eye_tracking
    (internal MR 3773)
  • New vendor extension: XR_ANDROID_recommended_resolution
    (internal MR 3840)
  • New vendor extension: XR_ANDROID_light_estimation.
    (internal MR 3879)
  • Schematron: Improvement: Add validation for ordering of structs in xr.xml.
    (internal MR 4251)
  • Schematron: Bump schXslt Schematron checker version and fix error in wrapper
    script.
    (internal MR 4288)
  • Update vendor specification: Revision 5 of XR_FB_passthrough
    (internal MR 3862)

OpenXR Specification 1.1.58

OpenXR Specification 1.1.58 (2026-03-31)

This release features several fixes and improvements to the specification as
well as a number of new extensions. The most notable are the two new ratified
multi-vendor extensions, XR_EXT_view_configuration_views_change and
XR_EXT_interaction_profile_battery_state_display.

• Specification
  • Change: Update the extension process document to include an alternate method of
    distinguishing experimental extensions during their development.
    (internal MR 3678)
  • Clarify: In XR_EXT_spatial_entity, clarify that update snapshot must not
    included unlisted entities.
    (internal MR 4149)
  • Fix: Typo in XR_EXT_hand_tracking_data_source Issue 2, referencing the
    incorrect structure.
    (internal MR 4170)
  • Fix: Correct link for MR number reservation from extension process to style
    guide.
    (internal MR 4183,
    internal issue 2688)
  • Fix: Two-call idiom links in some extensions.
    (internal MR 4185)
  • Improvement: Fix syntax highlighting of example C++ code in the spec.
    (internal MR 4181)
  • Improvement: Add links to XrSystemProperties next chain usage.
    (internal MR 4195)
  • New ratified multi-vendor extension specification:
    XR_EXT_view_configuration_views_change providing an event to notify the app
    of manual or infrequent changes to views (usually recommended resolutions).
    (internal MR 711,
    internal issue 619)
  • New ratified multi-vendor extension specification:
    XR_EXT_interaction_profile_battery_state_display providing access to limited
    battery state information for display purposes only.
    (internal MR 3528,
    internal issue 1339,
    internal issue 1905)
  • New vendor extension specification: XR_QCOM_hand_tracking_gesture adding
    vendor-specific additional data to the hand tracking extension.
    (internal MR 2572)
  • New vendor extension specification: XR_META_body_tracking_fidelity providing
    applications with the ability to influence performance vs. quality tradeoffs in
    body tracking.
    (internal MR 2962)
  • New vendor extension specification: XR_META_spatial_entity_semantic_label
    defines semantic labels to describe semantic meanings of an associated spatial
    entity, within the XR_FB_spatial_entity framework.
    (internal MR 3529)
  • New vendor extension specification: XR_ANDROID_performance_metrics to
    enumerate and query various performance metrics counters of the current XR
    device.
    (internal MR 3607)
  • New vendor extension specification: XR_ANDROID_mouse_interaction introduces a
    new vendor-specific interaction profile for mouse devices.
    (internal MR 3608)
  • New vendor extension specification: XR_ANDROID_unbounded_reference_space
    provides a new vendor-specific reference space type.
    (internal MR 3624)
  • New vendor extension specification:
    XR_ANDROID_composition_layer_passthrough_mesh enables applications to project
    passthrough textures onto arbitrary geometry.
    (internal MR 3625)
  • New vendor extension specification: XR_META_environment_raycast allowing
    applications to perform raycast operations against the surrounding physical
    environment.
    (internal MR 3758)
  • New vendor extension specification: XR_ANDROID_trackables_qr_code allowing
    applications to detect and track QR codes in the user's environment, in the
    XR_ANDROID_trackables framework.
    (internal MR 3772)
  • New vendor extension specification: XR_BD_spatial_audio_rendering allowing
    applications to render spatial audio in a 3D space.
    (internal MR 3794)
  • New vendor extension specification: XR_ANDROID_scene_meshing to track the
    triangle mesh representation of the user's environment.
    (internal MR 3872)
  • New vendor extension specification: XR_META_tile_properties_hint allowing
    applications to provide the tile properties of a render pass as a hint to the
    OpenXR runtime.
    (internal MR 3885)
  • New vendor extension specification: XR_ANDROID_spatial_object_tracking
    allowing applications to track objects in the user's environment, within the
    XR_EXT_spatial_entity framework.
    (internal MR 3992)
  • New vendor extension specification: XR_ANDROID_spatial_discovery_raycast to
    discover spatial entities via raycast hit test.
    (internal MR 3993)
  • New vendor extension specification: XR_ANDROID_spatial_entity_bound_anchor
    allowing applications to attach anchors to spatial entities, within the
    XR_EXT_spatial_entity framework.
    (internal MR 3994)
  • New vendor extension specification: XR_ANDROID_spatial_component_subsumed_by
    to provide a component on spatial entities that get subsumed by another entity,
    within the XR_EXT_spatial_entity framework.
    (internal MR 4125)
  • New vendor extension specification: XR_ANDROID_spatial_anchor_space to create
    an XrSpace that represents a spatial anchor, within the XR_EXT_spatial_entity
    framework.
    (internal MR 4132)
• Registry
  • Change: Mark XR_FB_space_warp as deprecated by XR_EXT_frame_synthesis,
    which provides the same functionality with a slightly modified interface.
    (internal MR 4173,
    internal issue 2469)
  • Chore: Reserve extension numbers.
    (internal MR 4204)
  • Fix: Mark XR_FB_touch_controller_proximity as obsoleted by OpenXR 1.1.
    (internal MR 4191,
    internal issue 2599)
  • Improvement: Add command return code checks in xml_consistency.py for
    specific spatial entity input types.
    (internal MR 4151)
  • New ratified multi-vendor extension: XR_EXT_view_configuration_views_change
    (internal MR 711,
    internal issue 619)
  • New ratified multi-vendor extension:
    XR_EXT_interaction_profile_battery_state_display.
    (internal MR 3528,
    internal issue 1339,
    internal issue 1905)
  • New vendor extension: XR_QCOM_hand_tracking_gesture
    (internal MR 2572)
  • New vendor extension: XR_META_body_tracking_fidelity
    (internal MR 2962)
  • New vendor extension: XR_META_spatial_entity_semantic_label
    (internal MR 3529)
  • New vendor extension: XR_ANDROID_performance_metrics
    (internal MR 3607)
  • New vendor extension: XR_ANDROID_mouse_interaction
    (internal MR 3608)
  • New vendor extension: XR_ANDROID_unbounded_reference_space
    (internal MR 3624)
  • New vendor extension: XR_ANDROID_composition_layer_passthrough_mesh
    (internal MR 3625)
  • New vendor extension: XR_META_environment_raycast
    (internal MR 3758)
  • New vendor extension: XR_ANDROID_trackables_qr_code
    (internal MR 3772)
  • New vendor extension: XR_BD_spatial_audio_rendering
    (internal MR 3794)
  • New vendor extension: XR_ANDROID_scene_meshing
    ([internal MR 3872](https://gitlab.k...

OpenXR Specification 1.1.57

OpenXR Specification 1.1.57 (2026-02-12)

This release features a few cleanups and clarifications, an addition to the
Spatial Entities specifications, a vendor extension, and tooling improvements.

Note that specification releases 1.1.55 and 1.1.56 were skipped to keep up with
a monthly increment for the patch version component.

• Specification
  • Clarify: Add grip-surface/palm and hand interaction snippets to Samsung Odyssey
    controller extension.
    (internal MR 2170)
  • Fix: XR_KHR_extended_struct_name_lengths string length can be up to 256
    bytes.
    (internal MR 4126)
  • Improvement: Update and optimize CSS for improved browser performance.
    (internal MR 4054)
  • Improvement: Update specification layout and formatting for
    XR_QCOM_tracking_optimization_settings.
    (internal MR 4064)
  • Improvement: Add guidelines for defining semantic labels in the spatial entity
    framework.
    (internal MR 4081)
  • Improvement: Add known issues to Issues section for
    XR_OCULUS_audio_device_guid.
    (internal MR 4102)
  • New vendor extension specification: XR_ANDROID_trackables_image providing
    vendor-specific tracking of planar images as specified by sets of input
    reference images.
    (internal MR 4069)
• Registry
  • Change: Update tooling to properly support extending allowable return codes
    from extensions.
    (internal MR 4009,
    internal issue 2494)
  • Chore: Reorder function return codes to alphabetic (with XR_SUCCESS pulled to
    the front).
    (internal MR 3979)
  • Chore: Reserve extensions.
    (internal MR 4157,
    internal MR 4162)
  • Fix: XR_KHR_extended_struct_name_lengths string length can be up to 256
    bytes. (The prose has been modified to match the XML specification.)
    (internal MR 4126,
    internal issue 2654)
  • New vendor extension: XR_ANDROID_trackables_image.
    (internal MR 4069)
  • Schematron: Add validation for return code ordering.
    (internal MR 3979)
  • Schematron: Add validation for semantic label enums defined for the spatial
    entity framework.
    (internal MR 4081)
  • Update: Mark XR_EXT_plane_detection as deprecated by
    XR_EXT_spatial_plane_tracking.
    (internal MR 4057,
    internal issue 2625)

OpenXR Specification 1.1.54

OpenXR Specification 1.1.54 (2025-12-02)

This release contains a number of specification clarifications and fixes, in
addition to improved guidance and tooling for those extending OpenXR, among
other changes.

• Specification
  • Change: Deprecate the Wayland part of XR_KHR_opengl_enable.
    (internal MR 4052,
    OpenXR-SDK-Source issue 282,
    internal issue 1634,
    internal issue 2559)
  • Change: Update the vendor extension review process.
    (internal MR 4056)
  • Clarification: Add more information in the 1.1 appendix about the
    thumb_resting_surfaces location
    (internal MR 3603)
  • Clarify: Specify what the runtime may do in a completion function of an
    XrFutureEXT in XR_EXT_future.
    (internal MR 3796,
    internal MR 4028)
  • Clarify: xrDestroySwapchain in practice requires the application to do some
    sync primitive CPU waiting. (CTS is now enforcing that the runtime is not doing
    its own waiting there.)
    (internal MR 4030)
  • Clarify: Describe why xrCreateSpatialAnchorEXT has 2 outputs.
    (internal MR 4033,
    internal MR 4021)
  • Fix: Removed clip space specification from all graphics api extensions.
    (internal MR 3765)
  • Fix: Add comment boxes for XrSpatialCapabilityEXT and
    XrSpatialCapabilityFeatureEXT.
    (internal MR 4084)
  • Improvement: Replace the recommendation for manual "New Types", etc. with
    interface include and make respective samples cleaner in styleguide.
    (internal MR 4035)
  • Improvement: Adjust image assets to reduce spec output file size.
    (internal MR 4050,
    internal MR 4051,
    internal MR 4055)
  • Improvement: Add missing heading for Mesh3D component in
    XR_EXT_spatial_entity.
    (internal MR 4088,
    internal MR 4056)
  • XR_META_environment_depth: Add XrEnvironmentDepthImageTimestampMETA.
    (internal MR 4024)
• Registry
  • Change: Deprecate the Wayland part of XR_KHR_opengl_enable and bump version.
    (internal MR 4052,
    OpenXR-SDK-Source issue 282,
    internal issue 1634,
    internal issue 2559)
  • Chore: Reserve extensions.
    (internal MR 4067,
    internal MR 4079,
    internal MR 4098,
    internal MR 4099,
    internal MR 4100)
  • Fix: Correctly define XR_EXT_dpad_binding paths for
    /interaction_profiles/bytedance/pico_ultra_controller_bd in XML.
    (internal MR 4049)
  • Improvement: Add description for XR_SPACE_COMPONENT_TYPE_TRIANGLE_MESH_META.
    (internal MR 4070)
  • Schematron: Add validation to ensure bitmasks are non-plural before
    Flags/FlagBits.
    (internal MR 2678)
  • Schematron: Add validation to check additional scenarios of next pointer
    const-ness.
    (internal MR 2740)
  • Schematron: Add validation for interaction profile extension binding additions.
    (internal MR 3982)
  • Schematron: Remove unneeded exception from "Param/member naming conventions:
    camelCase" pattern.
    (internal MR 4072)
  • Schematron: Fix check for multiple arrays bounded by the same len param.
    (internal MR 4077)
  • Schematron: Add validation for the comment attribute of
    XrSpatialComponentTypeEXT values. The comment must reference the list and
    data structs for the component.
    (internal MR 4083)
  • Schematron: Add validation for the comment attribute of
    XrSpatialCapabilityFeatureEXT values. The comment must have references to the
    feature's config structs.
    (internal MR 4084)
  • Schematron: Add check for orphaned structs, enforcing structextends or
    parentstruct when appropriate.
    (internal MR 4091,
    internal MR 4094)
  • Update: Bump XR_EXT_future version due to clarifying what the runtime may do in
    a completion function of an XrFutureEXT.
    (internal MR 3796,
    internal MR 4028)
  • Update: Add XrEnvironmentDepthImageTimestampMETA to
    XR_META_environment_depth, update spec version to 2.
    (internal MR 4024)

OpenXR Specification 1.1.53

OpenXR Specification 1.1.53 (2025-10-14)

This release contains three new vendor extensions and a handful of spec fixes
and clarifications.

• Specification
  • Clarify: In XR_MND_headless, no xrGet...GraphicsRequirements call is
    required if you create a headless session. Bump version.
    (internal MR 3961)
  • Clarify: Mark XR_MSFT_hand_interaction as promoted to
    XR_EXT_hand_interaction.
    (internal MR 4021)
  • Fix: Correct XR_ANDROID_trackables_object orientation.
    (internal MR 4018)
  • Fix: Typo in top level /user paths link in XR_EXT_interaction_render_model.
    (internal MR 4034)
  • Fix: Typo in XR_EXT_spatial_entity and XR_EXT_plane_detection.
    (internal MR 4038)
  • Fix: Formatting issue in the version 1.1 appendix.
    (internal MR 4042)
  • Fix: Correct the description of the 1.1-khr spec artifacts in the copyright-
    related preamble.
    (internal MR 4044)
  • New vendor extension specification: XR_BD_facial_simulation.
    (internal MR 2925)
  • New vendor extension specification: XR_ANDROID_face_tracking.
    (internal MR 3613)
  • New vendor extension specification: XR_BD_ultra_controller_interaction.
    (internal MR 3789)
• Registry
  • Fix: Bump XR_ANDROID_trackables_object version for fix to orientation.
    (internal MR 4018)
  • New vendor extension: XR_BD_facial_simulation for vendor-specific access to
    facial expressions.
    (internal MR 2925)
  • New vendor extension: XR_BD_ultra_controller_interaction for PICO Ultra
    controller interaction profile.
    (internal MR 3789)
  • New vendor extension specification: XR_ANDROID_face_tracking for vendor-
    specific access to facial expressions.
    (internal MR 3613)
  • Update: Bump version of XR_MND_headless for clarification.
    (internal MR 3961)

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)

OpenXR Specification 1.1.51

OpenXR Specification 1.1.51 (2025-08-28)

This release primarily features some specification clarifications and fixes to
the interaction profile data in the XML registry.

• Specification
  • Fix: Add documentation for space parameter to xrSetInputDeviceLocationEXT.
    (internal MR 3752)
  • Fix: specification to clarify parameters for
    xrEnumerateSpatialCapabilityFeaturesEXT &
    XrPersistSpatialEntityCompletionEXT.
    (internal MR 3932)
  • Fix: typo in XrSpatialEntityUnpersistInfoEXT.
    (internal MR 3932)
  • Fix: links for two-call idiom & capability features in spatial entities
    extensions.
    (internal MR 3932)
  • Improvement: Clarify success/failure for XrSpatialPersistenceContextResultEXT.
    (internal MR 3932)
  • Improvement: Clarify the rendering chapter without making any normative
    changes.
    (internal MR 3662)
• Registry
  • Chore: Reserve extension numbers.
    (internal MR 3916,
    internal MR 3956)
  • Fix: Missing parent struct for XrSpatialCapabilityConfigurationAnchorEXT.
    (internal MR 3932)
  • Fix: Missing XR_EXT_dpad_binding paths for
    /interaction_profiles/facebook/touch_controller_pro and
    /interaction_profiles/meta/touch_controller_plus.
    (internal MR 3945)
  • Fix: incorrect placement of * in
    XR_ERROR_GRAPHICS_REQUIREMENTS_CALL_MISSING error description.
    (internal MR 3960)
  • Fix: Missing XR_EXT_dpad_binding paths for
    /interaction_profiles/varjo/xr-4_controller.
    (internal MR 3965)
  • Fix: Missing XR_EXT_dpad_binding, XR_EXT_palm_pose, and
    XR_EXT_hand_interaction bindings for
    /interaction_profiles/oppo/mr_controller_oppo.
    (internal MR 3966)

OpenXR Specification 1.1.50

OpenXR Specification 1.1.50 (2025-07-24)

This release features a new API design principles section in the Style Guide, a
new loader extension, and several new vendor extensions, among other changes.

• Specification
  • Addition: Add an informative chapter on OpenXR API design principles to the
    Style Guide.
    (internal MR 3335)
  • Change: In XR_BD_spatial_anchor, change the
    XrSpatialAnchorCreateCompletionBD structure to make the last element be the
    created handle.
    (internal MR 3876)
  • Fix: Show correct parentage of XrEventData... structures.
    (internal MR 3871)
  • Fix: Incorrect parameter description for xrGetControllerModelStateMSFT
    (parameter is XrControllerModelStateMSFT, but parameter description
    referenced XrControllerModelNodeStateMSFT)
    (internal MR 3890)
  • Fix: Clarify parameters for xrDestroySpatialEntityEXT,
    xrGetSpatialBuffer..., and XrSpatialComponentDataQueryResultEXT.
    (internal MR 3897)
  • Improvement: Add spec language for fixed size input / output arrays.
    (internal MR 3754)
  • New multi-vendor extension specification: XR_EXT_loader_init_properties is
    intended for limited, specialized use cases mainly in automation and testing,
    and is primarily expected to be used via a loader-provided implementation.
    (internal MR 2454)
  • New vendor extension specification: XR_META_body_tracking_calibration allows
    an application using XR_FB_body_tracking to explicitly override body height
    used for that tracking.
    (internal MR 2963)
  • New vendor extension specification: XR_ANDROID_passthrough_camera_state,
    providing information about the passthrough camera used with non-opaque
    environment blend modes.
    (internal MR 3614)
  • New vendor extension specification: XR_ANDROID_trackables providing access to
    trackable planes in the environment.
    (internal MR 3615)
  • New vendor extension specification: XR_ANDROID_raycast allowing ray-
    intersection tests with trackables in the environment, building on
    XR_ANDROID_trackables.
    (internal MR 3620)
  • New vendor extension specification: XR_ANDROID_trackables_object extends the
    capabilities of XR_ANDROID_trackables to other objects in the environment.
    (internal MR 3623)
  • New vendor extension specification: XR_ANDROID_device_anchor_persistence
    allows the application to
    persist, retrieve, and unpersist anchors across device sessions, building on
    XR_ANDROID_trackables.
    (internal MR 3626)
  • New vendor extension specification: XR_ANDROID_anchor_sharing_export.
    (internal MR 3627)
  • New vendor extension specification: XR_ANDROID_trackables_marker extends
    XR_ANDROID_trackables to support ArUco and AprilTag markers.
    (internal MR 3774)
• Registry
  • Change: Update the XrSpatialAnchorCreateCompletionBD structure, and increment
    the revision of XR_BD_spatial_anchor.
    (internal MR 3876)
  • Fix: Remove XR_EXT_palm_pose paths from XR_HTCX_vive_tracker_interaction,
    as the /user/hand/left|right paths are not valid paths for Vive Trackers.
    (internal MR 3844)
  • Fix: Include XR_ERROR_SESSION_NOT_RUNNING in list of errors
    xrEnumerateInteractionRenderModelIdsEXT can return. (Already in specification
    prose.)
    (internal MR 3889)
  • Fix: Typo in comment for XR_ERROR_SPATIAL_PERSISTENCE_SCOPE_INCOMPATIBLE_EXT.
    (internal MR 3897)
  • Fix: Add explicit dependency to XR_ML_compat for
    XrCoordinateSpaceCreateInfoML.
    (internal MR 3907)
  • Improvement: Add comments for the XrResult values added by
    XR_BD_spatial_anchor and XR_BD_spatial_anchor_sharing.
    (internal MR 3861,
    internal issue 2535)
  • New multi-vendor extension: XR_EXT_loader_init_properties
    (internal MR 2454)
  • New vendor extension: XR_META_body_tracking_calibration.
    (internal MR 2963)
  • New vendor extension: XR_ANDROID_passthrough_camera_state.
    (internal MR 3614)
  • New vendor extension: XR_ANDROID_trackables.
    (internal MR 3615)
  • New vendor extension: XR_ANDROID_raycast.
    (internal MR 3620)
  • New vendor extension: XR_ANDROID_trackables_object.
    (internal MR 3623)
  • New vendor extension: XR_ANDROID_device_anchor_persistence.
    (internal MR 3626)
  • New vendor extension: XR_ANDROID_anchor_sharing_export.
    (internal MR 3627)
  • New vendor extension: XR_ANDROID_trackables_marker.
    (internal MR 3774)