Drop Python 3.9 support and modernize macOS runners #193
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Python 3.9 reached end-of-life and the codebase uses PEP 604 union type syntax (str | None) which requires Python 3.10+. Changes: - Remove Python 3.9 from CI build matrix - Update requires-python to >=3.10 in all pyproject.toml files - Update classifiers to reflect supported Python versions (3.10-3.13)
GitHub Actions deprecated macos-13 runner (brownout started Sept 2025, fully retired Dec 2025). See: https://github.blog/changelog/2025-09-19-github-actions-macos-13-runner-image-is-closing-down/
Replace deprecated macos-13 with macos-15-large (x86_64 Intel) to continue supporting Intel Mac users.
Intel Mac wheels (macos-15-large) now target macOS 13.0/13.3 for backward compatibility, allowing macOS 13/14/15 Intel users to install pre-built wheels.
Intel Mac users can build from source. This avoids: - Paid GitHub Actions runners (macos-15-large) - Complex cross-compilation setup
andylizf
changed the title
Use macos-15-intel (free standard runner) instead of macos-15-large (paid). This provides Intel Mac wheel support until Aug 2027. - MACOSX_DEPLOYMENT_TARGET=13.0 for backward compatibility - Replaces deprecated macos-13 runner
andylizf
changed the title
Add macos-26 (arm64) runner to the build matrix for testing future macOS compatibility. This is currently a beta runner that helps ensure wheels work on upcoming macOS versions.
andylizf
changed the title
The macos-15-intel runner runs macOS 15.7, so Homebrew libraries are built for macOS 14+. Setting MACOSX_DEPLOYMENT_TARGET=13.0 causes delocate to fail because system libraries require newer macOS. Fix by setting deployment target to 15.0 for macos-15-intel, matching the actual OS version. Intel Mac users will need macOS 15+.
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Summary
macos-15-intel(free runner)Rationale
str | None) which requires Python 3.10+.macos-15-intelwhich is a free standard runner available until Aug 2027.See: actions/runner-images#13045
Changes
macos-13withmacos-15-intelfor Intel Mac buildsmacos-26(beta) for testing future macOS compatibilityrequires-pythonto>=3.10in allpyproject.tomlfilesPlatform Support
Note: Intel Mac wheels require macOS 15+ because the
macos-15-intelrunner builds with macOS 15 system libraries. Users on older Intel Macs (macOS 13-14) can still install from source.Build Matrix
Test plan