Developers looking to use the latest Xcode technology and build and test their iOS applications can use the new macOS 26 image natively in their GitHub Actions workflow runs.

The following labels are supported for the new image:

  • macos-26
  • macos-26-xlarge

Get started today

To use macOS 26 in your actions workflow, update the runs-on: syntax to one of the supported labels.

Limitations

This image is only available on our arm64 macOS runners — it is not supported on any Intel runners. The macOS 26 runner image has different tools and tool versions than macOS 15. To view the list of installed software on the image or to report any issues, head to the runner-images repository.