@@ -65,7 +65,7 @@ reviews:
     custom_checks: []
 
   path_instructions:
-    - path: "cuda_bindings/**/*"
+    - path: "cuda_bindings_13/**/*"
       instructions: |
         Focus on Cython binding correctness, API and ABI stability, error-code propagation,
         resource ownership and reference counting, GIL handling, cross-platform behavior.
@@ -122,23 +122,23 @@ knowledge_base:
     filePatterns:
       - "AGENTS.md"
       - "CONTRIBUTING.md"
-      - "cuda_bindings/AGENTS.md"
+      - "cuda_bindings_13/AGENTS.md"
       - "cuda_core/AGENTS.md"
       - "cuda_core/tests/AGENTS.md"
       - "cuda_pathfinder/AGENTS.md"
       - "cuda_python/AGENTS.md"
       - "benchmarks/cuda_bindings/AGENTS.md"
       - "benchmarks/cuda_core/AGENTS.md"
-      - "cuda_bindings/README.md"
+      - "cuda_bindings_13/README.md"
       - "cuda_core/README.md"
       - "cuda_pathfinder/DESCRIPTION.rst"
       - "cuda_python/DESCRIPTION.rst"
-      - "cuda_bindings/docs/source/contribute.rst"
+      - "cuda_bindings_13/docs/source/contribute.rst"
       - "cuda_core/docs/source/contribute.rst"
       - "cuda_core/docs/source/concurrency.rst"
       - "cuda_core/docs/source/error_handling.rst"
       - "cuda_pathfinder/docs/source/contribute.rst"
-      - "cuda_bindings/docs/source/release.rst"
+      - "cuda_bindings_13/docs/source/release.rst"
       - "cuda_core/docs/source/release.rst"
       - "cuda_pathfinder/docs/source/release.rst"
       - "cuda_python/docs/source/release.rst"
@@ -8,7 +8,7 @@
 cuda.bindings:
   - changed-files:
     - any-glob-to-any-file:
-      - 'cuda_bindings/**'
+      - 'cuda_bindings_13/**'
       - 'samples/cuda_bindings/**'
 
 cuda.core:
 
@@ -110,6 +110,17 @@ jobs:
           PYTHON_VERSION_FORMATTED="312"  # see above
           REPO_DIR=$(pwd)
 
+          # Release docs may check out tags from before the source-root rename.
+          if [[ -d cuda_bindings_13 ]]; then
+            CUDA_BINDINGS_SOURCE_DIR=cuda_bindings_13
+          elif [[ -d cuda_bindings ]]; then
+            CUDA_BINDINGS_SOURCE_DIR=cuda_bindings
+          else
+            echo "error: cannot find the cuda.bindings source directory" >&2
+            exit 1
+          fi
+          echo "CUDA_BINDINGS_SOURCE_DIR=${CUDA_BINDINGS_SOURCE_DIR}" >> "$GITHUB_ENV"
+
           if [[ ${{ inputs.is-release }} == "true" ]]; then
             FILE_HASH="*"
             DOCS_GITHUB_REF="${{ inputs.git-tag }}"
@@ -130,7 +141,7 @@ jobs:
           CUDA_BINDINGS_ARTIFACT_BASENAME="cuda-bindings-python${PYTHON_VERSION_FORMATTED}-cuda${BUILD_CTK_VER}-linux-64"
           echo "CUDA_BINDINGS_ARTIFACT_BASENAME=${CUDA_BINDINGS_ARTIFACT_BASENAME}" >> $GITHUB_ENV
           echo "CUDA_BINDINGS_ARTIFACT_NAME=${CUDA_BINDINGS_ARTIFACT_BASENAME}-${FILE_HASH}" >> $GITHUB_ENV
-          echo "CUDA_BINDINGS_ARTIFACTS_DIR=$(realpath "$REPO_DIR/cuda_bindings/dist")" >> $GITHUB_ENV
+          echo "CUDA_BINDINGS_ARTIFACTS_DIR=$(realpath "$REPO_DIR/$CUDA_BINDINGS_SOURCE_DIR/dist")" >> $GITHUB_ENV
 
       - name: Download cuda-python build artifacts
         uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333  # v8.0.2
@@ -262,6 +273,9 @@ jobs:
         if: ${{ inputs.component != 'all' }}
         run: |
           COMPONENT=$(echo "${{ inputs.component }}" | tr '-' '_')
+          if [[ "${{ inputs.component }}" == "cuda-bindings" ]]; then
+            COMPONENT="${CUDA_BINDINGS_SOURCE_DIR}"
+          fi
           pushd ${COMPONENT}/docs/
           if [[ "${{ inputs.is-release }}" == "false" ]]; then
             ./build_docs.sh latest-only
 
@@ -229,7 +229,7 @@ jobs:
         if: ${{ env.BUILD_BINDINGS == 'true' }}
         uses: pypa/cibuildwheel@b3395e271a35f73dad77f21802abe9b986dfe299  # v4.3.1
         with:
-          package-dir: ./cuda_bindings/
+          package-dir: ./cuda_bindings_13/
           output-dir: ${{ env.CUDA_BINDINGS_ARTIFACTS_DIR }}
           extras: uv
         env:
@@ -481,7 +481,7 @@ jobs:
       - name: Build cuda.bindings Cython tests
         if: ${{ env.TEST_BINDINGS == 'true' }}
         run: |
-          pip install ${{ env.CUDA_BINDINGS_ARTIFACTS_DIR }}/*.whl --group ./cuda_bindings/pyproject.toml:test
+          pip install ${{ env.CUDA_BINDINGS_ARTIFACTS_DIR }}/*.whl --group ./cuda_bindings_13/pyproject.toml:test
           pushd ${{ env.CUDA_BINDINGS_CYTHON_TESTS_DIR }}
           bash build_tests.sh
           popd
@@ -570,7 +570,7 @@ jobs:
             --branch "${OLD_BRANCH}" \
             --artifact "${OLD_ARTIFACT_PATTERN}" \
             NVIDIA/cuda-python "CI")
-          PREV_BINDINGS_DIR="cuda_bindings/dist-prev"
+          PREV_BINDINGS_DIR="cuda_bindings_13/dist-prev"
 
           gh run download \
             "${LATEST_PRIOR_RUN_ID}" \
@@ -587,7 +587,7 @@ jobs:
         if: ${{ !inputs.single-cuda-major && env.BUILD_CORE == 'true' }}
         run: |
           pathfinder_wheels=(cuda_pathfinder/cuda_pathfinder-*.whl)
-          bindings_wheels=(cuda_bindings/dist-prev/cuda_bindings-"${BUILD_PREV_CUDA_MAJOR}".*.whl)
+          bindings_wheels=(cuda_bindings_13/dist-prev/cuda_bindings-"${BUILD_PREV_CUDA_MAJOR}".*.whl)
           test "${#pathfinder_wheels[@]}" -eq 1
           test "${#bindings_wheels[@]}" -eq 1
           test -f "${pathfinder_wheels[0]}"
 
@@ -41,10 +41,10 @@ on:
       # Path-dependency metadata (including cuda_python_test_helpers) feeds the
       # solve, so it can break the source build without a pixi.toml edit.
       - "**/pyproject.toml"
-      - "cuda_bindings/build_hooks.py"
+      - "cuda_bindings_13/build_hooks.py"
       - "cuda_core/build_hooks.py"
-      - "cuda_bindings/cuda/bindings/**" # generated bindings sources
-      - "cuda_bindings/tests/cython/**"
+      - "cuda_bindings_13/cuda/bindings/**" # generated bindings sources
+      - "cuda_bindings_13/tests/cython/**"
       - "cuda_core/tests/cython/**"
       - "ci/versions.yml"
       - "ci/pixi-version.env"
@@ -103,16 +103,16 @@ jobs:
 
           # bindings + core: force the source build (catches nvrtc/driver
           # compile errors like #2182) and import them (catches ABI mismatches).
-          pixi run --manifest-path cuda_bindings -e "${CUDA_ENV}" \
+          pixi run --manifest-path cuda_bindings_13 -e "${CUDA_ENV}" \
             python -c "import cuda.bindings.driver, cuda.bindings.nvrtc, cuda.bindings.runtime; print('bindings import OK')"
           pixi run --manifest-path cuda_core -e "${CUDA_ENV}" \
             python -c "import cuda.core; print('core import OK')"
 
           # cython test extensions: build them and confirm each .so landed next
           # to its .pyx in tests/cython (catches the placement regression #2180).
-          pixi run --manifest-path cuda_bindings -e "${CUDA_ENV}" build-cython-tests
+          pixi run --manifest-path cuda_bindings_13 -e "${CUDA_ENV}" build-cython-tests
           pixi run --manifest-path cuda_core -e "${CUDA_ENV}" build-cython-tests
-          for d in cuda_bindings/tests/cython cuda_core/tests/cython; do
+          for d in cuda_bindings_13/tests/cython cuda_core/tests/cython; do
             if ! compgen -G "${d}/*.cpython-*.so" > /dev/null; then
               echo "::error::no compiled cython test .so in ${d} (placement regression)"
               exit 1
@@ -131,7 +131,7 @@ jobs:
   # The round trip (not just cu13 -> cu12) is what catches the second half:
   # coming back to cu13 must not silently reuse the cu12 extension.
   #
-  # cuda_core only: cuda_bindings cannot be source-built in its cu12
+  # cuda_core only: cuda_bindings_13 cannot be source-built in its cu12
   # environment at all, for reasons unrelated to stale artifacts.
   build-identity-roundtrip:
     name: "cu13 -> cu12 -> cu13 round trip (linux-64, CPU)"
 
@@ -122,13 +122,13 @@ jobs:
   #
   # Dependency graph (verified in pyproject.toml files):
   #   cuda_pathfinder   -> (no internal deps)
-  #   cuda_bindings     -> cuda_pathfinder
-  #   cuda_core         -> cuda_pathfinder, cuda_bindings
-  #   cuda_python       -> cuda_pathfinder, cuda_bindings, cuda_core (meta package)
+  #   cuda_bindings_13     -> cuda_pathfinder
+  #   cuda_core         -> cuda_pathfinder, cuda_bindings_13
+  #   cuda_python       -> cuda_pathfinder, cuda_bindings_13, cuda_core (meta package)
   #
   # A change to cuda_pathfinder (or shared infra) forces a rebuild of every
-  # downstream module. A change to cuda_bindings forces rebuild of cuda_core.
-  # A change to cuda_core alone skips rebuilding/retesting cuda_bindings and
+  # downstream module. A change to cuda_bindings_13 forces rebuild of cuda_core.
+  # A change to cuda_core alone skips rebuilding/retesting cuda_bindings_13 and
   # cuda_pathfinder, but still retests the downstream cuda-python metapackage.
   # Shared build/orchestration changes run the full pipeline; test-only CI
   # infrastructure runs every test suite without rebuilding package wheels.
@@ -477,7 +477,7 @@ jobs:
       python-versions: ${{ needs.ci-vars.outputs.PYTHON_SUPPORTED }}
 
   # NOTE: test-sdist jobs are split by platform (mirroring build-* and test-wheel-*)
-  # so platform-specific sources (e.g. cuda_bindings/*_windows.pyx selected by
+  # so platform-specific sources (e.g. cuda_bindings_13/*_windows.pyx selected by
   # build_hooks.py) are exercised on their target OS. Keep these job definitions
   # textually identical except for:
   #   - host-platform value
 
@@ -142,8 +142,8 @@ jobs:
         run: |
           export PIP_BUILD_CONSTRAINT="$(pwd)/wheel-constraints/cuda-bindings.txt"
           export PIP_CONSTRAINT="${PIP_BUILD_CONSTRAINT}"
-          .venv/bin/pip wheel -v --no-deps ./cuda_bindings -w ./wheels/
-          .venv/bin/pip install -v ./wheels/cuda_bindings*.whl --group ./cuda_bindings/pyproject.toml:test
+          .venv/bin/pip wheel -v --no-deps ./cuda_bindings_13 -w ./wheels/
+          .venv/bin/pip install -v ./wheels/cuda_bindings*.whl --group ./cuda_bindings_13/pyproject.toml:test
 
       - name: Constrain cuda-core to the local cuda-bindings wheel
         run: |
@@ -188,7 +188,7 @@ jobs:
         continue-on-error: true
         run: |
           cd $INSTALL_ROOT
-          $REPO_ROOT/.venv/bin/pytest -v --cov=./cuda --cov-append --cov-context=test --cov-config=$REPO_ROOT/.coveragerc $REPO_ROOT/cuda_bindings/tests
+          $REPO_ROOT/.venv/bin/pytest -v --cov=./cuda --cov-append --cov-context=test --cov-config=$REPO_ROOT/.coveragerc $REPO_ROOT/cuda_bindings_13/tests
 
       - name: Run cuda.core tests
         continue-on-error: true
@@ -284,7 +284,7 @@ jobs:
         run: |
           export PIP_BUILD_CONSTRAINT="$(cygpath -w "$(pwd)/wheel-constraints/cuda-bindings.txt")"
           export PIP_CONSTRAINT="${PIP_BUILD_CONSTRAINT}"
-          cd cuda_bindings
+          cd cuda_bindings_13
           ../.venv/Scripts/pip wheel -v --no-deps . -w ../wheels/
 
       - name: Constrain cuda.core to the local cuda.bindings wheel
@@ -423,7 +423,7 @@ jobs:
         run: |
           .venv/Scripts/pip install coverage pytest-cov Cython
           .venv/Scripts/pip install --group ./cuda_pathfinder/pyproject.toml:test
-          .venv/Scripts/pip install --group ./cuda_bindings/pyproject.toml:test
+          .venv/Scripts/pip install --group ./cuda_bindings_13/pyproject.toml:test
           .venv/Scripts/pip install --group ./cuda_core/pyproject.toml:test
 
       - name: Get install root
@@ -448,7 +448,7 @@ jobs:
             --cwd "${{ steps.install-root.outputs.INSTALL_ROOT }}" \
             -v --cov=./cuda --cov-append --cov-context=test \
             --cov-config="$GITHUB_WORKSPACE/.coveragerc" \
-            "$GITHUB_WORKSPACE/cuda_bindings/tests"
+            "$GITHUB_WORKSPACE/cuda_bindings_13/tests"
 
       - name: Run cuda.core tests (with 8MB stack)
         continue-on-error: true
 
@@ -109,7 +109,7 @@ jobs:
           host-platform: ${{ inputs.host-platform }}
           cuda-version: ${{ inputs.cuda-version }}
 
-      # cuda_bindings/setup.py parses CUDA headers at import time, so CUDA_PATH
+      # cuda_bindings_13/setup.py parses CUDA headers at import time, so CUDA_PATH
       # (set by fetch_ctk) must be available for both sdist and wheel builds.
       - name: Build cuda.bindings sdist and wheel-from-sdist
         if: ${{ env.BUILD_BINDINGS == 'true' }}
@@ -119,22 +119,22 @@ jobs:
           export CXX="sccache c++"
           export PIP_BUILD_CONSTRAINT="$(pwd)/wheel-constraints/cuda-bindings.txt"
           export PIP_CONSTRAINT="${PIP_BUILD_CONSTRAINT}"
-          python -m build --sdist cuda_bindings/
-          pip wheel --no-deps --wheel-dir cuda_bindings/dist cuda_bindings/dist/*.tar.gz
+          python -m build --sdist cuda_bindings_13/
+          pip wheel --no-deps --wheel-dir cuda_bindings_13/dist cuda_bindings_13/dist/*.tar.gz
 
       - name: Download cuda.bindings wheel
         if: ${{ env.BUILD_BINDINGS != 'true' && env.BUILD_CORE == 'true' }}
         uses: ./.github/actions/download-artifact-retry
         with:
           name: cuda-bindings-python312-cuda${{ inputs.cuda-version }}-${{ inputs.host-platform }}-${{ github.sha }}
-          path: cuda_bindings/dist
+          path: cuda_bindings_13/dist
 
       - name: Constrain cuda.core to the local cuda.bindings wheel
         if: ${{ env.BUILD_CORE == 'true' }}
         run: |
           CUDA_MAJOR="$(echo '${{ inputs.cuda-version }}' | cut -d. -f1)"
           pathfinder_wheels=(cuda_pathfinder/dist/cuda_pathfinder-*.whl)
-          bindings_wheels=(cuda_bindings/dist/cuda_bindings-"${CUDA_MAJOR}".*.whl)
+          bindings_wheels=(cuda_bindings_13/dist/cuda_bindings-"${CUDA_MAJOR}".*.whl)
           test "${#pathfinder_wheels[@]}" -eq 1
           test "${#bindings_wheels[@]}" -eq 1
           test -f "${pathfinder_wheels[0]}"
 
@@ -3,7 +3,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 # Windows counterpart of test-sdist-linux.yml. Exists so that platform-gated
-# sources (e.g. cuda_bindings/*_windows.pyx selected by build_hooks.py) are
+# sources (e.g. cuda_bindings_13/*_windows.pyx selected by build_hooks.py) are
 # exercised by the sdist completeness test. Keep the shape of this file in
 # sync with test-sdist-linux.yml aside from Windows-specific setup (MSVC,
 # no sccache, no proxy cache).
@@ -108,7 +108,7 @@ jobs:
           host-platform: ${{ inputs.host-platform }}
           cuda-version: ${{ inputs.cuda-version }}
 
-      # cuda_bindings/setup.py parses CUDA headers at import time, so CUDA_PATH
+      # cuda_bindings_13/setup.py parses CUDA headers at import time, so CUDA_PATH
       # (set by fetch_ctk) must be available for both sdist and wheel builds.
       # Constraint paths are passed as native Windows paths because the pip
       # subprocesses run outside Git Bash.
@@ -118,22 +118,22 @@ jobs:
           export CUDA_PYTHON_PARALLEL_LEVEL=$(nproc)
           export PIP_BUILD_CONSTRAINT="$(cygpath -w "$(pwd)/wheel-constraints/cuda-bindings.txt")"
           export PIP_CONSTRAINT="${PIP_BUILD_CONSTRAINT}"
-          python -m build --sdist cuda_bindings/
-          pip wheel --no-deps --wheel-dir cuda_bindings/dist cuda_bindings/dist/*.tar.gz
+          python -m build --sdist cuda_bindings_13/
+          pip wheel --no-deps --wheel-dir cuda_bindings_13/dist cuda_bindings_13/dist/*.tar.gz
 
       - name: Download cuda.bindings wheel
         if: ${{ env.BUILD_BINDINGS != 'true' && env.BUILD_CORE == 'true' }}
         uses: ./.github/actions/download-artifact-retry
         with:
           name: cuda-bindings-python312-cuda${{ inputs.cuda-version }}-${{ inputs.host-platform }}-${{ github.sha }}
-          path: cuda_bindings/dist
+          path: cuda_bindings_13/dist
 
       - name: Constrain cuda.core to the local cuda.bindings wheel
         if: ${{ env.BUILD_CORE == 'true' }}
         run: |
           CUDA_MAJOR="$(echo '${{ inputs.cuda-version }}' | cut -d. -f1)"
           pathfinder_wheels=(cuda_pathfinder/dist/cuda_pathfinder-*.whl)
-          bindings_wheels=(cuda_bindings/dist/cuda_bindings-"${CUDA_MAJOR}".*.whl)
+          bindings_wheels=(cuda_bindings_13/dist/cuda_bindings-"${CUDA_MAJOR}".*.whl)
           test "${#pathfinder_wheels[@]}" -eq 1
           test "${#bindings_wheels[@]}" -eq 1
           test -f "${pathfinder_wheels[0]}"
 
@@ -15,7 +15,7 @@ __pycache__/
 .benchmarks/
 *.cpp
 !*_impl.cpp
-!cuda_bindings/cuda/bindings/_bindings/loader.cpp
+!cuda_bindings_13/cuda/bindings/_bindings/loader.cpp
 !cuda_core/cuda/core/_cpp/**/*.cpp
 cache_driver
 cache_runtime
@@ -27,17 +27,17 @@ cuda_core/tests/test_binaries/*.a
 cuda_core/tests/test_binaries/*.lib
 
 # CUDA Python specific (auto-generated)
-cuda_bindings/cuda/bindings/_internal/cudla.pyx
-cuda_bindings/cuda/bindings/_internal/driver.pyx
-cuda_bindings/cuda/bindings/_internal/nvrtc.pyx
-cuda_bindings/cuda/bindings/_internal/cufile.pyx
-cuda_bindings/cuda/bindings/_internal/nvfatbin.pyx
-cuda_bindings/cuda/bindings/_internal/nvjitlink.pyx
-cuda_bindings/cuda/bindings/_internal/nvml.pyx
-cuda_bindings/cuda/bindings/_internal/nvvm.pyx
-cuda_bindings/cuda/bindings/_internal/runtime.pyx
-cuda_bindings/cuda/bindings/_internal/runtime_ptds.pyx
-cuda_bindings/cuda/bindings/utils/_get_handle.pyx
+cuda_bindings_13/cuda/bindings/_internal/cudla.pyx
+cuda_bindings_13/cuda/bindings/_internal/driver.pyx
+cuda_bindings_13/cuda/bindings/_internal/nvrtc.pyx
+cuda_bindings_13/cuda/bindings/_internal/cufile.pyx
+cuda_bindings_13/cuda/bindings/_internal/nvfatbin.pyx
+cuda_bindings_13/cuda/bindings/_internal/nvjitlink.pyx
+cuda_bindings_13/cuda/bindings/_internal/nvml.pyx
+cuda_bindings_13/cuda/bindings/_internal/nvvm.pyx
+cuda_bindings_13/cuda/bindings/_internal/runtime.pyx
+cuda_bindings_13/cuda/bindings/_internal/runtime_ptds.pyx
+cuda_bindings_13/cuda/bindings/utils/_get_handle.pyx
 
 # Version files from setuptools_scm
 _version.py
@@ -178,7 +178,7 @@ cython_debug/
 # Dont ignore
 !.github/actions/build/
 # pixi environments
-# Per-workspace commands such as `pixi lock --manifest-path cuda_bindings`
+# Per-workspace commands such as `pixi lock --manifest-path cuda_bindings_13`
 # create a .pixi/ next to that manifest, so match at any depth.
 **/.pixi/*
 !**/.pixi/config.toml