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GitHub Actions: Jobs running on `macos-latest` are now running on macOS Big Sur (11).

macOS Big Sur (11) became generally available on GitHub-hosted runners in August 2021. Over the next 8 weeks, jobs using the macos-latest runner label will migrate from Catalina (10.15) to Big Sur (11). During migration, you can determine if your job has migrated by viewing the Virtual Environment information in the Set up job step of your logs.

Start using GitHub Actions to build and publish apps for the Apple ecosystem by updating your jobs to include runs-on: macos-latest

    runs-on: macos-latest
      - uses: actions/checkout@v2
      - name: Build
        run: swift build
      - name: Run tests
        run: swift test

The macOS 11 Big Sur runner image has different tools and tool versions than macOS 10.15 Catalina. See the full list of changed software.

If you spot any issues with your workflows when using Big Sur, please let us know by creating an issue in the virtual-environments repository.

GitHub will stop supporting API Authentication via Query Parameters with Actions on October 6th 2021 at 14:00 UTC. If you are passing credentials via query or path parameters, GitHub will respond with client errors. Please refer to this blog post for details on authenticating API requests to GitHub using the Authorization header.


  • October 6 2021 at 14:00 UTC
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GitHub Enterprise Server 3.2 is now generally available for all customers. This release contains more than 70 new features and changes that create a more delightful development experience, and provide new security capabilities to our customers.

For more information about GitHub Enterprise Server 3.2, read the blog post and release notes or download it today.

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