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Xcode 27 runner image now in public preview on GitHub

infrapreviewengineer
announcement feature

GitHub Actions now offers Xcode 27 on hosted macOS runners in public preview, allowing developers to test applications with the latest Apple toolchains. This change introduces a new support model where images are versioned by Xcode major releases, simplifying toolchain targeting. The preview is currently limited to arm64 macOS runners.

  • →Xcode 27 runner image available in public preview
  • →New support model for macOS images
  • →How to use Xcode 27 runner image
  • →Limitations of Xcode 27 runner image
Features (1) ›
  • Xcode 27 runner image available in public preview

    Users can now build and test Apple applications using Xcode 27 on GitHub-hosted macOS runners. This public preview provides early access to the latest Xcode toolchain and Apple SDKs.

Enhancements (1) ›
  • New support model for macOS images

    macOS runner images are now based on major Xcode versions instead of the underlying OS, with support for one major Xcode version per image. This model aims to simplify targeting specific toolchains and understanding runner capabilities.

Notes (2) ›
  • How to use Xcode 27 runner image

    To utilize Xcode 27, update the `runs-on:` value in GitHub Actions workflows to `xcode-27` or `xcode-27-xlarge`.

  • Limitations of Xcode 27 runner image

    This image is exclusively available on arm64 macOS runners and is not supported on Intel runners. The installed software versions may differ from previous images.

Read the original announcement →

https://github.blog/changelog/2026-07-16-xcode-27-runner-image-now-in-public-preview

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