OpenXR SDK 1.1.53 (2025-10-14)

This release contains three new vendor extensions and some code
cleanups. The test_runtime expansion is primarily intended for CTS
self-testing but may be useful in other development processes as well.

-   SDK
    -   Improvement: fix clang-tidy bugprone-branch-clone warning
        (internal MR 3864, internal MR 4027)
    -   Improvement: Expand the “test_runtime” to implement all OpenXR
        1.0 / OpenXR 1.1 functions for self-test purposes. (internal MR
        3989)
    -   Improvement: Add stricter compiler flags to the loader and
        hello_xr, fixing issues found. (internal MR 4028, internal MR
        4042)
    -   Loader: Fix: Remove unused function definition
        xrInitializeLoaderKHR to fix pedantic builds. (internal MR 4020)
-   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)

GitOrigin-RevId: 3b9736e2cefaa1f0c1f6648ad8de2e8673826b78

Author: rpavlik

.appveyor.yml

@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
-version: 1.1.52.{build}
+version: 1.1.53.{build}
 image: Visual Studio 2017
 
 

.github/workflows/android.yml

@@ -1,4 +1,4 @@
-# Copyright 2021-2023, Collabora, Ltd.
+# Copyright 2021-2025, Collabora, Ltd.
 # SPDX-License-Identifier: CC0-1.0
 
 name: Android

.github/workflows/msvc-build-preset.yml

@@ -1,4 +1,4 @@
-# Copyright 2021-2024, Collabora, Ltd.
+# Copyright 2021-2025, Collabora, Ltd.
 # SPDX-License-Identifier: CC0-1.0
 
 on:

BUILDING.md

@@ -36,19 +36,17 @@ new to building CMake-based projects. The instructions below can mostly be skimm
 ### Windows
 
 Building the OpenXR components in this tree on Windows is supported using Visual
-Studio 2013 and newer. If you are using Visual Studio 2019, you can simply "Open
+Studio 2017 and newer. If you are using Visual Studio 2019+, you can simply "Open
 folder" and use the built-in CMake support. Other environments, such as VS Code,
 that can have CMake support installed and use the Visual Studio toolchains,
-should also work:
+should also work.
 
 When generating the
 solutions/projects using CMake, be sure to use the correct compiler version
 number. The following table is provided to help you:
 
 | Visual Studio        | Version Number |
 | -------------------- |:--------------:|
-| Visual Studio 2013   |       12       |
-| Visual Studio 2015   |       14       |
 | Visual Studio 2017   |       15       |
 | Visual Studio 2019   |       16       |
 | Visual Studio 2022   |       17       |
@@ -65,9 +63,9 @@ cmake -G "Visual Studio [Version Number] Win64" ../..
 
 Finally, open the build\win64\OPENXR.sln in the Visual Studio to build the samples.
 
-#### VS2019
+#### VS2019+
 
-For VS2019 the above may complain and say to split out the arch into `-A '[arch]'`.  This `-A` parameter must be set to `x64`, *not* `Win64`:
+For VS2019+ the above may complain and say to split out the arch into `-A '[arch]'`.  This `-A` parameter must be set to `x64`, *not* `Win64`:
 
 ```cmd
 mkdir build\win64

CHANGELOG.SDK.md

@@ -21,6 +21,41 @@ along with any public pull requests that have been accepted.
 In this repository in particular, since it is primarily software,
 pull requests may be integrated as they are accepted even between periodic updates.
 
+## OpenXR SDK 1.1.53 (2025-10-14)
+
+This release contains three new vendor extensions and some code cleanups. The
+test_runtime expansion is primarily intended for CTS self-testing but may be
+useful in other development processes as well.
+
+- SDK
+  - Improvement: fix clang-tidy bugprone-branch-clone warning
+    ([internal MR 3864](https://gitlab.khronos.org/openxr/openxr/merge_requests/3864),
+    [internal MR 4027](https://gitlab.khronos.org/openxr/openxr/merge_requests/4027))
+  - Improvement: Expand the "test_runtime" to implement all OpenXR 1.0 / OpenXR 1.1
+    functions for self-test purposes.
+    ([internal MR 3989](https://gitlab.khronos.org/openxr/openxr/merge_requests/3989))
+  - Improvement: Add stricter compiler flags to the loader and hello_xr, fixing
+    issues found.
+    ([internal MR 4028](https://gitlab.khronos.org/openxr/openxr/merge_requests/4028),
+    [internal MR 4042](https://gitlab.khronos.org/openxr/openxr/merge_requests/4042))
+  - Loader: Fix: Remove unused function definition `xrInitializeLoaderKHR` to fix
+    pedantic builds.
+    ([internal MR 4020](https://gitlab.khronos.org/openxr/openxr/merge_requests/4020))
+- Registry
+  - Fix: Bump `XR_ANDROID_trackables_object` version for fix to orientation.
+    ([internal MR 4018](https://gitlab.khronos.org/openxr/openxr/merge_requests/4018))
+  - New vendor extension: `XR_BD_facial_simulation` for vendor-specific access to
+    facial expressions.
+    ([internal MR 2925](https://gitlab.khronos.org/openxr/openxr/merge_requests/2925))
+  - New vendor extension: `XR_BD_ultra_controller_interaction` for PICO Ultra
+    controller interaction profile.
+    ([internal MR 3789](https://gitlab.khronos.org/openxr/openxr/merge_requests/3789))
+  - New vendor extension specification: `XR_ANDROID_face_tracking` for vendor-
+    specific access to facial expressions.
+    ([internal MR 3613](https://gitlab.khronos.org/openxr/openxr/merge_requests/3613))
+  - Update: Bump version of `XR_MND_headless` for clarification.
+    ([internal MR 3961](https://gitlab.khronos.org/openxr/openxr/merge_requests/3961))
+
 ## OpenXR SDK 1.1.52 (2025-09-19)
 
 This release contains a new ratified Khronos extension, a new vendor extension,

github/sdk/README.md

@@ -55,9 +55,9 @@ following table is provided to help you:
 
 | Visual Studio        | Version Number |
 | -------------------- |:--------------:|
-| Visual Studio 2013   |       12       |
-| Visual Studio 2015   |       14       |
 | Visual Studio 2017   |       15       |
+| Visual Studio 2019   |       16       |
+| Visual Studio 2022   |       17       |
 
 Specific sample command lines for building follow.
 If you're already familiar with the process of building a project with
@@ -126,3 +126,18 @@ cd build/linux_release
 cmake -DCMAKE_BUILD_TYPE=Release ../..
 make
 ```
+
+### macOS
+
+Building the OpenXR components in this tree on macOS is supported using Xcode
+14.0 and newer. You may need to install Xcode Command Line Tools and cmake.
+
+First, generate the Xcode project file using CMake:
+
+```cmd
+mkdir -p build/macos
+cd build/macos
+cmake -G "Xcode" ../..
+```
+
+Finally, open the build/macos/OPENXR.xcodeproj in Xcode to build the samples.

maintainer-scripts/common.sh

@@ -323,6 +323,8 @@ getConformanceFilenames() {
         src/external \
         src/loader \
         src/scripts \
+        src/tests/CMakeLists.txt \
+        src/tests/test_runtimes \
         src/version.cmake \
         src/version.gradle \
         | grep -E -v "${COMMON_EXCLUDE_PATTERN}" \

specification/Makefile

@@ -39,7 +39,7 @@ endif
 VERSIONS := XR_VERSION_1_0 XR_VERSION_1_1 XR_LOADER_VERSION_1_0
 VERSIONOPTIONS := $(foreach version,$(VERSIONS),-feature $(version))
 
-SPECREVISION = 1.1.52
+SPECREVISION = 1.1.53
 REVISION_COMPONENTS = $(subst ., ,$(SPECREVISION))
 MAJORMINORVER = $(word 1,$(REVISION_COMPONENTS)).$(word 2,$(REVISION_COMPONENTS))