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.
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