Xcode 27 runner image now in public preview
You can now build and test your Apple applications against Xcode 27 on GitHub-hosted macOS runners. This is now available in public preview.
With early access to the latest Xcode toolchain and Apple SDKs, you can validate your apps against the newest tools, catch compatibility issues sooner, and keep your CI/CD pipelines current.
A new support model for macOS images
With this release, we are moving to a new support model for our macOS images. Each image is based on a major Xcode version rather than the underlying operating system, and we will support one major Xcode version per image. This makes it easier to target the exact toolchain your project needs and to know what each runner provides.
Get started today
To use Xcode 27 in your GitHub Actions workflows, update the runs-on: value to one of the supported labels.
The following labels are supported for the new image:
xcode-27xcode-27-xlarge
Limitations
This image is only available on our arm64 macOS runners and is not supported on Intel runners. The runner image includes different tools and tool versions than earlier images. To view the full list of installed software or report an issue, visit the runner-images repository.
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Fetched July 16, 2026
