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Merged
leofang merged 3 commits into from
Mar 10, 2026
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Add release notes for cuda-bindings 12.9.6 + Update test matrix to cover CUDA 13.2 #1745

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ee034b5
add 12.9.6 release notes
leofang Mar 9, 2026
df536b4
test against 13.2
leofang Mar 9, 2026
24cc0c6
Merge branch 'main' into 12_9_6_doc
leofang Mar 9, 2026
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42 changes: 21 additions & 21 deletions ci/test-matrix.yml
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Expand Up @@ -20,67 +20,67 @@ linux:
# linux-64
- { ARCH: 'amd64', PY_VER: '3.10', CUDA_VER: '12.9.1', LOCAL_CTK: '1', GPU: 'v100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.10', CUDA_VER: '13.0.2', LOCAL_CTK: '0', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.10', CUDA_VER: '13.1.1', LOCAL_CTK: '0', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.10', CUDA_VER: '13.2.0', LOCAL_CTK: '0', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.11', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 'rtxpro6000', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.11', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.11', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.11', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.12', CUDA_VER: '12.9.1', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.12', CUDA_VER: '13.0.2', LOCAL_CTK: '0', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.12', CUDA_VER: '13.1.1', LOCAL_CTK: '0', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.12', CUDA_VER: '13.2.0', LOCAL_CTK: '0', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 'v100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'rtxpro6000', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 'rtxpro6000', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 'rtxpro6000', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.14', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 't4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.14', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.14', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.14', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.14t', CUDA_VER: '12.9.1', LOCAL_CTK: '1', GPU: 't4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.14t', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.14t', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.14t', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest' }
# linux-aarch64
- { ARCH: 'arm64', PY_VER: '3.10', CUDA_VER: '12.9.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.10', CUDA_VER: '13.0.2', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.10', CUDA_VER: '13.1.1', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.10', CUDA_VER: '13.2.0', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.11', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.11', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.11', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.11', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.12', CUDA_VER: '12.9.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.12', CUDA_VER: '13.0.2', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.12', CUDA_VER: '13.1.1', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.12', CUDA_VER: '13.2.0', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.13', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.13', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.13', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.13', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.14', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.14', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.14', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.14', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.14t', CUDA_VER: '12.9.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.14t', CUDA_VER: '13.0.2', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.14t', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'arm64', PY_VER: '3.14t', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest' }
# special runners
- { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'h100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 'h100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.14', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 't4', GPU_COUNT: '2', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.14t', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 'h100', GPU_COUNT: '2', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 'h100', GPU_COUNT: '1', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.14', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 't4', GPU_COUNT: '2', DRIVER: 'latest' }
- { ARCH: 'amd64', PY_VER: '3.14t', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 'h100', GPU_COUNT: '2', DRIVER: 'latest' }
nightly: []

windows:
pull-request:
# win-64
- { ARCH: 'amd64', PY_VER: '3.10', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 'rtx2080', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'WDDM' }
- { ARCH: 'amd64', PY_VER: '3.10', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'rtxpro6000', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'TCC' }
- { ARCH: 'amd64', PY_VER: '3.10', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 'rtxpro6000', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'TCC' }
- { ARCH: 'amd64', PY_VER: '3.10', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 'rtxpro6000', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'TCC' }
- { ARCH: 'amd64', PY_VER: '3.11', CUDA_VER: '12.9.1', LOCAL_CTK: '1', GPU: 'v100', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'MCDM' }
- { ARCH: 'amd64', PY_VER: '3.11', CUDA_VER: '13.0.2', LOCAL_CTK: '0', GPU: 'rtx4090', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'WDDM' }
- { ARCH: 'amd64', PY_VER: '3.11', CUDA_VER: '13.1.1', LOCAL_CTK: '0', GPU: 'rtx4090', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'WDDM' }
- { ARCH: 'amd64', PY_VER: '3.11', CUDA_VER: '13.2.0', LOCAL_CTK: '0', GPU: 'rtx4090', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'WDDM' }
- { ARCH: 'amd64', PY_VER: '3.12', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'MCDM' }
- { ARCH: 'amd64', PY_VER: '3.12', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'TCC' }
- { ARCH: 'amd64', PY_VER: '3.12', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'TCC' }
- { ARCH: 'amd64', PY_VER: '3.12', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'TCC' }
- { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '12.9.1', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'TCC' }
- { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '13.0.2', LOCAL_CTK: '0', GPU: 'rtxpro6000', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'MCDM' }
- { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '13.1.1', LOCAL_CTK: '0', GPU: 'rtxpro6000', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'MCDM' }
- { ARCH: 'amd64', PY_VER: '3.13', CUDA_VER: '13.2.0', LOCAL_CTK: '0', GPU: 'rtxpro6000', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'MCDM' }
- { ARCH: 'amd64', PY_VER: '3.14', CUDA_VER: '12.9.1', LOCAL_CTK: '0', GPU: 'v100', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'TCC' }
- { ARCH: 'amd64', PY_VER: '3.14', CUDA_VER: '13.0.2', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'MCDM' }
- { ARCH: 'amd64', PY_VER: '3.14', CUDA_VER: '13.1.1', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'MCDM' }
- { ARCH: 'amd64', PY_VER: '3.14', CUDA_VER: '13.2.0', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'MCDM' }
- { ARCH: 'amd64', PY_VER: '3.14t', CUDA_VER: '12.9.1', LOCAL_CTK: '1', GPU: 'l4', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'TCC' }
- { ARCH: 'amd64', PY_VER: '3.14t', CUDA_VER: '13.0.2', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'MCDM' }
- { ARCH: 'amd64', PY_VER: '3.14t', CUDA_VER: '13.1.1', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'MCDM' }
- { ARCH: 'amd64', PY_VER: '3.14t', CUDA_VER: '13.2.0', LOCAL_CTK: '0', GPU: 'a100', GPU_COUNT: '1', DRIVER: 'latest', DRIVER_MODE: 'MCDM' }
nightly: []
64 changes: 64 additions & 0 deletions cuda_bindings/docs/source/release/12.9.6-notes.rst
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.. SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
.. SPDX-License-Identifier: LicenseRef-NVIDIA-SOFTWARE-LICENSE

.. module:: cuda.bindings

``cuda-bindings`` 12.9.6 Release notes
======================================

Highlights
----------

* ``cuda.bindings.nvml`` has graduated from experimental (``cuda.bindings._nvml``)
to a fully supported public module with extensive handwritten Pythonic API
coverage spanning ~170 functions across system queries, device discovery,
memory, power, clocks, utilization, thermals, NVLink, and device configuration.
(`PR #1524 <https://github.com/NVIDIA/cuda-python/pull/1524>`_,
`PR #1548 <https://github.com/NVIDIA/cuda-python/pull/1548>`_)
* Add ``nvFatbin`` bindings.
(`PR #1467 <https://github.com/NVIDIA/cuda-python/pull/1467>`_)
* Performance improvement: ``cuda.bindings`` now uses a faster ``enum``
implementation, rather than the standard library's ``enum.IntEnum``.
This leads to much faster import times, and slightly faster attribute access
times.
(`PR #1581 <https://github.com/NVIDIA/cuda-python/pull/1581>`_)
* Multiple performance improvements cumulatively reducing Python-to-C call
overhead through faster ``void *`` conversion, faster result returning,
optimized enum-to-vector conversion, and stack-allocated small arrays.

Bugfixes
--------

* Fixed an issue where the ``CU_POINTER_ATTRIBUTE_DEVICE_ORDINAL`` attribute was
retrieved as an unsigned int, rather than a signed int.
(`PR #1336 <https://github.com/NVIDIA/cuda-python/pull/1336>`_)
* Fixed a use-after-free in ``_HelperInputVoidPtr`` properties when backed by
Python buffer objects.
(`PR #1629 <https://github.com/NVIDIA/cuda-python/pull/1629>`_)

Miscellaneous
-------------

* Faster ``void *`` conversion using stack-allocated buffers instead of heap
allocation.
(`PR #1616 <https://github.com/NVIDIA/cuda-python/pull/1616>`_)
* Faster returning of results from driver, runtime, and NVRTC bindings.
(`PR #1647 <https://github.com/NVIDIA/cuda-python/pull/1647>`_,
`PR #1656 <https://github.com/NVIDIA/cuda-python/pull/1656>`_)
* Faster conversion of enum sequences to vectors by eliminating temporary
Python objects.
(`PR #1667 <https://github.com/NVIDIA/cuda-python/pull/1667>`_)
* Stack-allocated small numeric arrays in driver bindings, reducing heap
allocation overhead.
(`PR #1545 <https://github.com/NVIDIA/cuda-python/pull/1545>`_)
* NVML bindings now use ``cuda_pathfinder`` for library discovery, consistent
with other CUDA libraries.
(`PR #1661 <https://github.com/NVIDIA/cuda-python/pull/1661>`_)
* ``CUDA_HOME`` is no longer required at metadata resolution time (e.g.
``pip install --dry-run``, ``uv lock``); it is only needed at actual build time.
(`PR #1652 <https://github.com/NVIDIA/cuda-python/pull/1652>`_)

Known issues
------------

* Updating from older versions (v12.6.2.post1 and below) via ``pip install -U cuda-python`` might not work. Please do a clean re-installation by uninstalling ``pip uninstall -y cuda-python`` followed by installing ``pip install cuda-python``.
16 changes: 16 additions & 0 deletions cuda_python/docs/source/release/12.9.6-notes.rst
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.. SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
.. SPDX-License-Identifier: LicenseRef-NVIDIA-SOFTWARE-LICENSE

CUDA Python 12.9.6 Release notes
================================

Included components
-------------------

* `cuda.bindings 12.9.6 <https://nvidia.github.io/cuda-python/cuda-bindings/12.9.6/release/12.9.6-notes.html>`_
* `cuda.pathfinder 1.4.2 <https://nvidia.github.io/cuda-python/cuda-pathfinder/1.4.2/release/1.4.2-notes.html>`_

Known issues
------------

* Updating from older versions (v12.6.2.post1 and below) via ``pip install -U cuda-python`` might not work. Please do a clean re-installation by uninstalling ``pip uninstall -y cuda-python`` followed by installing ``pip install cuda-python``.
2 changes: 1 addition & 1 deletion cuda_python/docs/source/release/13.2.0-notes.rst
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.. SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
.. SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
.. SPDX-License-Identifier: LicenseRef-NVIDIA-SOFTWARE-LICENSE

CUDA Python 13.2.0 Release notes
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