[release/2.14] Remove CUDA 13.4 from the binary build matrix - #8601
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atalman merged 1 commit intoAug 21, 2026
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CUDA 13.4 is not shipping in the 2.14 release, so the release branch should not be building or testing it. The `release` channel already excluded 13.4; this drops it from the `nightly` and `test` channels too, along with the supporting arch/cudnn entries, so nothing on release/2.14 generates a 13.4 job. Changes in `tools/scripts/generate_binary_build_matrix.py`: - `CUDA_ARCHES_DICT`: drop `13.4` from `nightly` and `test` - `CUDA_CUDNN_VERSIONS`: drop the `13.4` entry - `CUDA_AARCH64_ARCHES`: drop `13.4-aarch64` - `CUDA_ARCHES_NO_WINDOWS`: now empty (13.4 was its only member) Test assets regenerated for the four affected matrices; each loses exactly the 8 CUDA 13.4 entries (one per Python version) with no other change: - `build_matrix_linux_wheel_cuda.json` 56 -> 48 - `build_matrix_linux_wheel_cuda_norocm.json` 40 -> 32 - `build_matrix_linux_wheel_nocpu.json` 48 -> 40 - `build_matrix_linux_wheel_xpu.json` 40 -> 32 The macOS and Windows assets are unchanged, as expected: macOS has no CUDA builds and 13.4 was already excluded from Windows. `tools/pkg-helpers/tests/test_cuda.py` still parametrizes over 13.4, which is left alone deliberately -- it exercises version-string sanitization on an arbitrary version and does not depend on the build matrix.
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Summary
CUDA 13.4 is not shipping in the 2.14 release, so
release/2.14should not build or test it. Thereleasechannel already excluded 13.4; this drops it from thenightlyandtestchannels too, plus the supporting arch/cudnn entries, so nothing on this branch generates a 13.4 job.This targets
release/2.14only. The companion change for the same branch is in pytorch/pytorch.Changes
tools/scripts/generate_binary_build_matrix.py:CUDA_ARCHES_DICT13.4fromnightlyandtest(releasealready lacked it)CUDA_CUDNN_VERSIONS13.4entryCUDA_AARCH64_ARCHES13.4-aarch64CUDA_ARCHES_NO_WINDOWS13.4was its only memberTest assets regenerated for the four affected matrices. Each loses exactly the 8 CUDA 13.4 entries (one per Python version), with zero additions and zero non-13.4 removals:
build_matrix_linux_wheel_cuda.jsonbuild_matrix_linux_wheel_cuda_norocm.jsonbuild_matrix_linux_wheel_nocpu.jsonbuild_matrix_linux_wheel_xpu.jsonThe macOS and Windows assets are unchanged, as expected — macOS has no CUDA builds, and 13.4 was already excluded from Windows via
CUDA_ARCHES_NO_WINDOWS.Test Plan
Test Result
11 passed. I also diffed the regenerated assets structurally (parsed JSON, compared entry lists) to confirm every removed entry carries a13.4/cu134marker and nothing else changed.Notes for the reviewer
tools/pkg-helpers/tests/test_cuda.pystill parametrizes over13.4. Left deliberately — it exercises version-string sanitization against an arbitrary version and has no coupling to the build matrix.tools/tests/update_test_assets.shthat I hit and worked around rather than fix here, since they are out of scope: it invokespython(notpython3), and its three--package-type condalines fail withKeyError: 'conda'because conda support was removed from the generator. Because the redirect truncates before the command fails, running the script as-is empties the conda assets. It also emits single-line JSON while the checked-in assets areindent=2, so a naive run reformats every file. Worth a follow-up.