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chore: mac os 13 hosted runner image is closing down#3666

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ianna merged 13 commits intoscikit-hep:mainfrom
ianna:ianna/macOS_13_hosted_runner_image_is_closing_down
Oct 16, 2025
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chore: mac os 13 hosted runner image is closing down#3666
ianna merged 13 commits intoscikit-hep:mainfrom
ianna:ianna/macOS_13_hosted_runner_image_is_closing_down

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@ianna ianna commented Oct 2, 2025

The macOS 13 runner image will be retired by December 4th, 2025. To raise awareness of the upcoming removal, jobs using macOS 13 will temporarily fail during the scheduled brownout time periods defined below:

November 4, 14:00 UTC - November 5, 00:00 UTC
November 11, 14:00 UTC - November 12, 00:00 UTC
November 18, 14:00 UTC - November 19, 00:00 UTC
November 25, 14:00 UTC - November 26, 00:00 UTC

This deprecation includes the following labels:

macos-13
macos-13-large
macos-13-xlarge

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codecov bot commented Oct 2, 2025 •
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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.66%. Comparing base (b749e49) to head (2de3a1b).
⚠️ Report is 437 commits behind head on main.

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see 197 files with indirect coverage changes

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github-actions bot commented Oct 2, 2025

The documentation preview is ready to be viewed at http://preview.awkward-array.org.s3-website.us-east-1.amazonaws.com/PR3666

ariostas
ariostas reviewed Oct 7, 2025
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ariostas commented Oct 7, 2025

Going forward, what do you think should be the level of support for macOS x86? Now that macos-13 won't be available, all the compilation and testing will be with Rosetta 2, so it might not be 100% accurate.

ianna and others added 2 commits October 8, 2025 17:55
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ianna commented Oct 8, 2025

Going forward, what do you think should be the level of support for macOS x86? Now that macos-13 won't be available, all the compilation and testing will be with Rosetta 2, so it might not be 100% accurate.

Apple has discontinued support for the x86_64 (Intel) architecture going forward. GitHub will no longer support this architecture on macOS after the macOS 15 runner image is retired in Fall 2027. We should begin migrating our workloads to arm64-based (Apple Silicon) runners as soon as possible to prepare for this eventual deprecation.

@ianna ianna merged commit c7132f1 into scikit-hep:main Oct 16, 2025
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@ariostas ariostas mentioned this pull request Nov 11, 2025
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