Xcode 26 beta support for EAS Build and Workflows

To use Xcode 26 beta to create your builds, specify the following image in your eas.json:

{
  "build": {
    "preview": {
      "ios": {
        "image": "macos-sequoia-15.5-xcode-26.0"
      }
    }
  }
}

For Workflows, specify the image in your job configuration:

jobs:
  build:
    type: build
    image: macos-sequoia-15.5-xcode-26.0
    params:
      platform: ios

As new beta images roll out, we'll continue to update our xcode image under this image name, so you'll always have the latest.

Using this beta image allows you to test your app against the latest iOS 26 SDK and identify any compatibility issues before the public release later this fall. For a complete list of supported build images, see our infrastructure documentation.