We’re making several important updates to our macOS runner image offerings to ensure you have access to the latest and most efficient CI/CD capabilities.

macos-latest migration begins August 4, 2025

The macos-latest label in GitHub Actions will be migrated to the macOS 15 runner image beginning August 4, 2025 and will complete by September 1, 2025. This migration includes the latest labels for macOS larger runners:

  • macos-latest-large
  • macos-latest-xlarge

During this period your workflows will gradually switch to the new image. Once they are migrated they will not run on macOS 14 in any future runs. For more information, visit the runner-images repository.

Xcode support policy update

Our support policy for Xcode installation on our macOS runner images is changing. We’ll continue to support all bare bones Xcode versions in the image. However, starting August 11, 2025, we’ll keep at most three runtimes (simulators) in the image and only keep beta runtimes on a best-effort basis.

For more information or questions on this policy, please view the announcement in the runner-images repository.

macos-13 is closing down

The macOS 13 hosted runner image is closing down, following our N-1 OS support policy. This process will begin September 1, 2025, and the image will be fully retired on November 14, 2025. We recommend updating workflows to use macos-14 or macos-15.