Last 3.15 changes

[mdboom]

Some last straggling changes related to Python 3.15 support from this review comment:
#3113 (review)

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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📥 Commits

Reviewing files that changed from the base of the PR and between 48a939c and c0d95c4.

📒 Files selected for processing: 1

• cuda_core/pyproject.toml

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📝 Summary

Summary by CodeRabbit

• Tests
  • Expanded Linux and Windows test coverage to Python 3.15 and free-threaded 3.15t across CUDA 12.9.1 and 13.4.2, with additional GPU and Windows driver-mode configurations.
  • Updated test dependency requirements to allow newer NumPy and ml-dtypes releases. ml-dtypes is now included across supported environments, while psutil is omitted on Windows with Python 3.15 and later.

The pull-request matrix adds Python 3.15 and 3.15t coverage on Linux and Windows. Test dependency constraints change for NumPy, psutil, and ml-dtypes.

Changes: Python 3.15 Testing

Layer / File(s)	Summary
Test dependency constraints cuda_bindings/pyproject.toml, cuda_core/pyproject.toml	NumPy retains its >=1.21.1 minimum without an upper bound. ml-dtypes now requires >=0.5.4 without an upper bound or environment marker. psutil==7.2.2 is excluded on Windows with Python 3.15 and later.
Linux and Windows test matrix ci/test-matrix.yml	The Linux matrix adds Python 3.15 and 3.15t rows on amd64 and arm64. The Windows matrix adds Python 3.15 and 3.15t rows for CUDA 12.9.1 and 13.4.2 with specified GPU and driver-mode configurations.

Suggested reviewers: leofang

Priority: ⬇️ Low

Change: Other

Merge Risk: ⚪ Minimal · up to c0d95

This change only adjusts test dependency constraints and CI matrix entries for Python 3.15. No production behavior changes, and no actionable merge-blocking risk is evident.

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[github-actions]

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[leofang]

thanks, Mike, not sure why we missed this, but the same expansion should be applied to linux-aarch64 and win-64 too

[leofang]

Thanks, Mike!