openusd v26.08

.ci_support/linux_64_python3.10.____cpython.yaml

@@ -15,7 +15,7 @@ cxx_compiler:
 cxx_compiler_version:
 - '14'
 docker_image:
-- quay.io/condaforge/linux-anvil-x86_64:alma9
+- quay.io/condaforge/linux-anvil-x86_64:alma10
 pin_run_as_build:
   python:
     min_pin: x.x

.ci_support/linux_64_python3.11.____cpython.yaml

@@ -15,7 +15,7 @@ cxx_compiler:
 cxx_compiler_version:
 - '14'
 docker_image:
-- quay.io/condaforge/linux-anvil-x86_64:alma9
+- quay.io/condaforge/linux-anvil-x86_64:alma10
 pin_run_as_build:
   python:
     min_pin: x.x

.ci_support/linux_64_python3.12.____cpython.yaml

@@ -15,7 +15,7 @@ cxx_compiler:
 cxx_compiler_version:
 - '14'
 docker_image:
-- quay.io/condaforge/linux-anvil-x86_64:alma9
+- quay.io/condaforge/linux-anvil-x86_64:alma10
 pin_run_as_build:
   python:
     min_pin: x.x

.ci_support/linux_64_python3.13.____cp313.yaml

@@ -15,7 +15,7 @@ cxx_compiler:
 cxx_compiler_version:
 - '14'
 docker_image:
-- quay.io/condaforge/linux-anvil-x86_64:alma9
+- quay.io/condaforge/linux-anvil-x86_64:alma10
 pin_run_as_build:
   python:
     min_pin: x.x

.ci_support/linux_64_python3.14.____cp314.yaml

@@ -15,7 +15,7 @@ cxx_compiler:
 cxx_compiler_version:
 - '14'
 docker_image:
-- quay.io/condaforge/linux-anvil-x86_64:alma9
+- quay.io/condaforge/linux-anvil-x86_64:alma10
 pin_run_as_build:
   python:
     min_pin: x.x

.ci_support/linux_aarch64_python3.10.____cpython.yaml

@@ -15,7 +15,7 @@ cxx_compiler:
 cxx_compiler_version:
 - '14'
 docker_image:
-- quay.io/condaforge/linux-anvil-x86_64:alma9
+- quay.io/condaforge/linux-anvil-x86_64:alma10
 pin_run_as_build:
   python:
     min_pin: x.x

.ci_support/linux_aarch64_python3.11.____cpython.yaml

@@ -15,7 +15,7 @@ cxx_compiler:
 cxx_compiler_version:
 - '14'
 docker_image:
-- quay.io/condaforge/linux-anvil-x86_64:alma9
+- quay.io/condaforge/linux-anvil-x86_64:alma10
 pin_run_as_build:
   python:
     min_pin: x.x

.ci_support/linux_aarch64_python3.12.____cpython.yaml

@@ -15,7 +15,7 @@ cxx_compiler:
 cxx_compiler_version:
 - '14'
 docker_image:
-- quay.io/condaforge/linux-anvil-x86_64:alma9
+- quay.io/condaforge/linux-anvil-x86_64:alma10
 pin_run_as_build:
   python:
     min_pin: x.x

.ci_support/linux_aarch64_python3.13.____cp313.yaml

@@ -15,7 +15,7 @@ cxx_compiler:
 cxx_compiler_version:
 - '14'
 docker_image:
-- quay.io/condaforge/linux-anvil-x86_64:alma9
+- quay.io/condaforge/linux-anvil-x86_64:alma10
 pin_run_as_build:
   python:
     min_pin: x.x

.ci_support/linux_aarch64_python3.14.____cp314.yaml

@@ -15,7 +15,7 @@ cxx_compiler:
 cxx_compiler_version:
 - '14'
 docker_image:
-- quay.io/condaforge/linux-anvil-x86_64:alma9
+- quay.io/condaforge/linux-anvil-x86_64:alma10
 pin_run_as_build:
   python:
     min_pin: x.x

.github/workflows/conda-build.yml

@@ -23,7 +23,7 @@ jobs:
       matrix:
         include:
           - CONFIG: linux_64_python3.10.____cpython
-            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
+            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma10
             STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             build_workspace_dir: build_artifacts
@@ -35,7 +35,7 @@ jobs:
             runs_on: ['ubuntu-latest']
             tools_install_dir: ~/miniforge3
           - CONFIG: linux_64_python3.11.____cpython
-            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
+            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma10
             STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             build_workspace_dir: build_artifacts
@@ -47,7 +47,7 @@ jobs:
             runs_on: ['ubuntu-latest']
             tools_install_dir: ~/miniforge3
           - CONFIG: linux_64_python3.12.____cpython
-            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
+            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma10
             STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             build_workspace_dir: build_artifacts
@@ -59,7 +59,7 @@ jobs:
             runs_on: ['ubuntu-latest']
             tools_install_dir: ~/miniforge3
           - CONFIG: linux_64_python3.13.____cp313
-            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
+            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma10
             STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             build_workspace_dir: build_artifacts
@@ -71,7 +71,7 @@ jobs:
             runs_on: ['ubuntu-latest']
             tools_install_dir: ~/miniforge3
           - CONFIG: linux_64_python3.14.____cp314
-            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
+            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma10
             STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             build_workspace_dir: build_artifacts
@@ -83,7 +83,7 @@ jobs:
             runs_on: ['ubuntu-latest']
             tools_install_dir: ~/miniforge3
           - CONFIG: linux_aarch64_python3.10.____cpython
-            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
+            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma10
             STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             build_workspace_dir: build_artifacts
@@ -95,7 +95,7 @@ jobs:
             runs_on: ['ubuntu-latest']
             tools_install_dir: ~/miniforge3
           - CONFIG: linux_aarch64_python3.11.____cpython
-            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
+            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma10
             STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             build_workspace_dir: build_artifacts
@@ -107,7 +107,7 @@ jobs:
             runs_on: ['ubuntu-latest']
             tools_install_dir: ~/miniforge3
           - CONFIG: linux_aarch64_python3.12.____cpython
-            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
+            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma10
             STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             build_workspace_dir: build_artifacts
@@ -119,7 +119,7 @@ jobs:
             runs_on: ['ubuntu-latest']
             tools_install_dir: ~/miniforge3
           - CONFIG: linux_aarch64_python3.13.____cp313
-            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
+            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma10
             STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             build_workspace_dir: build_artifacts
@@ -131,7 +131,7 @@ jobs:
             runs_on: ['ubuntu-latest']
             tools_install_dir: ~/miniforge3
           - CONFIG: linux_aarch64_python3.14.____cp314
-            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma9
+            DOCKER_IMAGE: quay.io/condaforge/linux-anvil-x86_64:alma10
             STORE_BUILD_ARTIFACTS: False
             UPLOAD_PACKAGES: True
             build_workspace_dir: build_artifacts

recipe/build.bat

@@ -1,6 +1,9 @@
 mkdir build
 cd build
 
+:: PXR_PYTHON_INSTALL_DIR pins the Python bindings to lib/python (the location
+:: used before OpenUSD 26.08). As of 26.08 it defaults to a Lib\site-packages
+:: layout, which would break the "move lib\python\pxr" step below.
 cmake %CMAKE_ARGS% ^
     -G "Ninja" ^
     -DCMAKE_INSTALL_PREFIX=%LIBRARY_PREFIX% ^
@@ -13,6 +16,7 @@ cmake %CMAKE_ARGS% ^
     -DPXR_ENABLE_PYTHON_SUPPORT=ON ^
     -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY:BOOL=ON ^
     -DPXR_PYTHON_SHEBANG="/usr/bin/env python" ^
+    -DPXR_PYTHON_INSTALL_DIR=lib/python ^
     -DPython3_EXECUTABLE=%PYTHON% ^
     -DPython_EXECUTABLE=%PYTHON% ^
     -DPXR_INSTALL_DLL_IN_BIN:BOOL=ON ^
@@ -36,7 +40,9 @@ if errorlevel 1 exit 1
 :: resulting in a package (for example for a given Python version) silently not being uploaded
 :: testExecGeomXformable_Perf_Large is disabled as it is disabled upstream, see 
 :: https://github.com/PixarAnimationStudios/OpenUSD/blob/v25.11/.github/workflows/buildusd.yml#L83
-ctest --output-on-failure -C Release -E "testWorkThreadLimits|testUsdResolverExample|TfPathUtils|testWorkDispatcher|testUsdUtilsFlattenLayerStack|testExecGeomXformable_Perf_Large"
+:: --no-tests=ignore keeps ctest from erroring when no tests are registered
+:: (recent ctest defaults that action to "error").
+ctest --output-on-failure --no-tests=ignore -C Release -E "testWorkThreadLimits|testUsdResolverExample|TfPathUtils|testWorkDispatcher|testUsdUtilsFlattenLayerStack|testExecGeomXformable_Perf_Large"
 if errorlevel 1 exit 1
 
 :: The CMake install logic of openusd is not flexible, so let's fix the files

recipe/build.sh

@@ -32,6 +32,10 @@ if [[ "${build_platform}" != "${target_platform}" ]]; then
     CMAKE_ARGS="${CMAKE_ARGS} -DPYSIDEUICBINARY=$BUILD_PREFIX/lib/qt6/uic"
 fi
 
+# PXR_PYTHON_INSTALL_DIR pins the Python bindings to lib/python (the hard-coded
+# location used before OpenUSD 26.08). As of 26.08 it defaults to a
+# lib/pythonX.Y/site-packages layout, which would break the "mv lib/python/pxr"
+# step below.
 cmake ${CMAKE_ARGS} -GNinja .. \
       -DCMAKE_BUILD_TYPE=Release \
       -DBUILD_TESTING:BOOL=ON \
@@ -40,7 +44,8 @@ cmake ${CMAKE_ARGS} -GNinja .. \
       -DPXR_BUILD_USD_IMAGING:BOOL=ON \
       -DPXR_ENABLE_PYTHON_SUPPORT:BOOL=ON \
       -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY:BOOL=ON \
-      -DPXR_PYTHON_SHEBANG="/usr/bin/env python"
+      -DPXR_PYTHON_SHEBANG="/usr/bin/env python" \
+      -DPXR_PYTHON_INSTALL_DIR=lib/python
 
 cmake --build . --config Release
 cmake --build . --config Release --target install
@@ -49,8 +54,12 @@ cmake --build . --config Release --target install
 # testJsIO is disabled as it now actually links usd_tf, and so the linker remove the link to Python
 # testExecGeomXformable_Perf_Large is disabled as it is disabled upstream, see 
 # https://github.com/PixarAnimationStudios/OpenUSD/blob/v25.11/.github/workflows/buildusd.yml#L83
+# --no-tests=ignore keeps ctest from erroring when it registers no tests (the
+# default action became "error" in recent ctest). On some configurations (e.g.
+# linux_64) OpenUSD registers no ctest tests at all, which older ctest silently
+# treated as success.
 if [[ "${CONDA_BUILD_CROSS_COMPILATION:-}" != "1" || "${CROSSCOMPILING_EMULATOR}" != "" ]]; then
-    ctest --output-on-failure -C Release -E "testWorkThreadLimits3|testJsIO|testExecGeomXformable_Perf_Large|${OPENUSD_ADDITIONAL_CTEST_TO_SKIP}"
+    ctest --output-on-failure --no-tests=ignore -C Release -E "testWorkThreadLimits3|testJsIO|testExecGeomXformable_Perf_Large|${OPENUSD_ADDITIONAL_CTEST_TO_SKIP}"
 fi
 
 # Workaround for https://github.com/prefix-dev/rattler-build/issues/1955

recipe/fix_macos_test_python_link.patch

@@ -0,0 +1,38 @@
+Link the Python libraries into C++ ctest executables.
+
+Since OpenUSD 26.08, PYTHON_LIBRARIES resolves (when
+PXR_PY_UNDEFINED_DYNAMIC_LOOKUP is ON) to a generator expression that
+links libpython only into EXECUTABLE targets, so that standalone
+executables do not hit missing Python symbols while the shared libraries
+themselves keep using -undefined dynamic_lookup. Regular CLI binaries get
+this via the interface link libraries of the USD libraries they consume,
+but the C++ test executables built by pxr_build_test only link
+${bt_LIBRARIES} and never pull in ${PYTHON_LIBRARIES}.
+
+On macOS, conda-forge's Python reports a static LDLIBRARY
+(libpythonX.Y.a) via sysconfig, which makes OpenUSD force
+PXR_PY_UNDEFINED_DYNAMIC_LOOKUP ON. The USD C++ libraries reference
+Python C-API symbols (TfPython, boost::python glue) that are left
+undefined for runtime resolution, so a C++ test binary that does not link
+libpython fails to load with errors such as:
+
+    dyld: symbol not found in flat namespace '__Py_NoneStruct'
+
+This adds ${PYTHON_LIBRARIES} to the test link. Because a test target is
+an EXECUTABLE, the generator expression evaluates to the Python library
+for it (and to nothing for shared libraries), so the test binaries link
+libpython and resolve those symbols. It only affects the (non-installed)
+test executables, not the shipped libraries.
+
+diff --git a/cmake/macros/Public.cmake b/cmake/macros/Public.cmake
+index 5f6a545..a019fe1 100644
+--- a/cmake/macros/Public.cmake
++++ b/cmake/macros/Public.cmake
+@@ -661,6 +661,7 @@ function(pxr_build_test TEST_NAME)
+     )
+     _pxr_target_link_libraries(${TEST_NAME}
+         ${bt_LIBRARIES}
++        ${PYTHON_LIBRARIES}
+     )
+
+     # Find libraries under the install prefix, which has the core USD

recipe/recipe.yaml

@@ -2,29 +2,25 @@ schema_version: 1
 
 context:
   name: openusd
-  version: "26.05"
+  version: "26.08"
 
 package:
   name: ${{ name }}
   version: ${{ version }}
 
 source:
   - url: https://github.com/PixarAnimationStudios/OpenUSD/archive/refs/tags/v${{ version }}.tar.gz
-    sha256: bf514f62ac9508d3c5b121dc1107f3b29bf3c954473b9b0bf8324b7cf04c64c1
+    sha256: 4bccbb95cddda1dbeef2f74a08b9456352f2aa91bfd4578c0c613009c7950149
     patches:
       - link_python_to_executables.patch
       - add_pxr_install_dll_in_bin.patch
-      # Fix https://github.com/conda-forge/openusd-feedstock/issues/11
-      - 3759.patch
       - remove_hardcoded_prefix.patch
-      # Explicitly include <tbb/version.h> so TBB_INTERFACE_VERSION_MAJOR is
-      # defined when selecting the oneTBB task_group backend. Recent oneTBB
-      # (the "tbb 2023" migration) no longer defines it via <tbb/blocked_range.h>,
-      # which made the workTBB backend fall back to the removed legacy tbb::task API.
-      - fix_tbb_version_macro.patch
+      # Link libpython into the C++ ctest executables so they don't fail to
+      # load with missing Python symbols (e.g. __Py_NoneStruct) on macOS.
+      - fix_macos_test_python_link.patch
 
 build:
-  number: 2
+  number: 0
   skip: ppc64le
 
 requirements: