[Nithin Aashik PS (nithin-aashik-mcw)]

Why are these changes needed?

• This PR adds support for running FLAML CI builds and tests on Windows ARM64.
• Added windows-11-arm to the GitHub Actions matrix and updated platform-specific dependencies.
• Added necessary test skips and dependency changes for packages without Windows ARM64 wheels.
• Updated the test configuration to ensure the existing Windows and Linux CI behavior remains unchanged.

Checks

• I've used pre-commit to lint the changes in this PR (note the same in integrated in our CI checks).
• I've included any doc changes needed for https://microsoft.github.io/FLAML/. See https://microsoft.github.io/FLAML/docs/Contribute#documentation to build and test documentation locally.
• I've added tests (if relevant) corresponding to the changes introduced in this PR.
• I've made sure all auto checks have passed.

[Nithin Aashik PS (nithin-aashik-mcw)]

@microsoft-github-policy-service agree company="MulticoreWare"

[Li Jiang (thinkall)]

Reviewed the ARM64 changes after updating the branch. The test dependency change also changes existing x64 environments and introduces the blocking incompatibility noted inline. Please scope the NumPy relaxation to Windows ARM64 while retaining compatible constraints for the existing matrix. The newly approved CI is still running.

[Nithin Aashik PS (nithin-aashik-mcw)]

Could you please take another look?

[Copilot]

🟡 Changes recommended

Unsupported-dependency handling can produce undefined names, and the cryptography pin unintentionally affects existing platforms.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Pull request overview

Adds Windows ARM64 CI coverage and adapts optional dependencies and tests for unavailable ARM64 packages.

Changes:

• Adds Windows ARM64 for Python 3.11–3.13.
• Applies platform-specific dependency markers.
• Skips tests requiring unsupported packages.

File summaries

File	Description
.github/workflows/python-package.yml	Adds Windows ARM64 jobs.
pyproject.toml	Adjusts ARM64 test dependencies.
test/test_gpu.py	Skips unsupported Hugging Face testing.
test/nlp/test_autohf.py	Skips ARM64 dataset test.
test/nlp/test_autohf_regression.py	Skips ARM64 regression test.
test/nlp/test_autohf_custom_metric.py	Guards dataset usage.
test/nlp/test_autohf_classificationhead.py	Skips module on ARM64.
test/automl/test_warmstart.py	Skips MinIO-dependent test.
test/automl/test_split.py	Skips unavailable dependency cases.
test/automl/test_score.py	Skips CatBoost regression test.
test/automl/test_regression.py	Skips ARM64 CatBoost cases.
test/automl/test_multiclass.py	Skips CatBoost-dependent tests.
test/automl/test_model.py	Skips CatBoost preparation test.
test/automl/test_custom_hp.py	Skips unsupported NLP test.
test/automl/test_classification.py	Skips ARM64 CatBoost cases.
test/autogen/oai/test_completion.py	Guards the datasets import.

Review details

• Files reviewed: 16/16 changed files
• Comments generated: 3
• Review effort level: Balanced

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[Copilot]

Copilot encountered an error and was unable to review this pull request. You can try again by re-requesting a review.

[Copilot]

Copilot encountered an error and was unable to review this pull request. You can try again by re-requesting a review.

[Copilot]

🟡 Changes recommended

Matrix typing, dependency markers, and remaining unguarded tests can still break CI.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Review details

• Files reviewed: 16/16 changed files
• Comments generated: 4
• Review effort level: Balanced

[Copilot]

🟡 Changes recommended

The AutoGen test changes introduce Ruff E402 and F401 failures that block pre-commit validation.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Review details

• Files reviewed: 17/17 changed files
• Comments generated: 2
• Review effort level: Balanced

[Copilot]

🟢 Approval recommended

The platform matrix, dependency markers, and targeted skips consistently support Windows ARM64 without altering existing x64 CI behavior.

Review details

• Files reviewed: 17/17 changed files
• Comments generated: 0 new
• Review effort level: Balanced