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2022-04-27 Update:
While the url redirection service is read-only and use of the service is limited, we have received feedback from developers and academic researchers who have published links in print documentation and research papers. In order to preserve the integrity of these historical documents, we have decided to archive the current links in a new read-only service that will allow us to serve redirects for those links longer term.

As we continue our analysis, we may remove individual links that point to spammy, malicious or 404 links. Our goal is to not break links relied on for legitimate use, especially by the academic community, while preserving the security of developers on GitHub.

That said, we still encourage users to make use of one of the many URL shortening services available with greater functionality than the service provided. GitHub support will not be able to update or edit redirection records served by the archive service.

Effective Friday, April 29, 2022 all links on will stop redirecting. Please update any existing links that make use of the URL service immediately. is a URL shortening website that GitHub created in 2011 for redirecting to GitHub domains like and What began as an experiment was only lightly documented and was not widely adopted.

In January 2022, we announced that was becoming read-only. As notified in January, we shared our plans to deprecate the service. Out of an abundance of caution due to the security of the links redirected with the current infrastructure, we have decided to accelerate the timeline. We will be removing all existing link redirection from on April 29, 2022.

Developers should immediately make use of one of the many URL shortening services available with greater functionality than the service provided.

Currently, codespaces are automatically stopped after 30 minutes of inactivity to avoid wasteful resources when they're not being used. Additionally, a default idle timeout can be set for a codespace of up to four hours.

We heard from many organization admins that they want to restrict idle timeouts for organization-owned codespaces as a measure of cost control. With this feature, we've added the ability for administrators to set a maximum idle timeout that applies to organization-owned codespaces. For instance, if the maximum idle timeout constraint is set to 15 minutes, then all organization-owned codespaces will be automatically stopped after 15 minutes of inactivity regardless of the default timeout set by individual developers.

We will continue adding additional policy constraints based on feedback, some of which include setting maximum retention periods, setting allowed container images, and more. We'd love your feedback on additional policies that will help your scenarios on Codespaces discussions.

For more information, see Restricting idle timeouts for organization-owned codespaces

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The macOS 12 Actions runner image public beta is now available. Start using GitHub Actions to build and publish apps for the Apple ecosystem with the latest version of Xcode (13.3) by updating your jobs to include runs-on: macos-12

    runs-on: macos-12
      - uses: actions/checkout@v2
      - name: Build
        run: swift build
      - name: Run tests
        run: swift test

The macOS 12 Actions runner image has different tools and tool versions than macOS 11. See the full list of changed software.

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

While the runner image is in beta, you may experience longer queue times during peak usage hours. Follow the public roadmap for information on general availability of this image.

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