[macOS] The additional macOS 15 Sonoma Intel-based image will be available in GitHub Actions

[erik-bershel]

Breaking changes

GitHub Actions is starting the deprecation process for macOS 13 and macOS 13 arm64. For users that require the x86_64 (Intel) environment, we are introducing a new label to migrate to: macos-15-intel. The new label will run on macOS 15 and will be available from now until August 2027. This will be the last available x86_64 image from Actions, and after that date the x86_64 architecture will not be supported on GitHub Actions.

macOS-15 Intel

jobs:
  job:
    runs-on: macos-15-intel

Target date

Friday, September 19, 2025 - August, 2027

The motivation for the changes

Due to the high demand from the OSS community for continued support of Intel-based solutions.

Possible impact

N/A

Platforms affected

• [ ] Azure DevOps
• [x] GitHub Actions

Runner images affected

• [ ] Ubuntu 22.04
• [ ] Ubuntu 24.04
• [ ] macOS 13
• [ ] macOS 13 Arm64
• [ ] macOS 14
• [ ] macOS 14 Arm64
• [x] macOS 15
• [ ] macOS 15 Arm64
• [ ] macOS 26 Arm64
• [ ] Windows Server 2019
• [ ] Windows Server 2022
• [ ] Windows Server 2025

Mitigation ways

If you encounter any issues while migrating to a new label, please open a separate issue for each new case.

[4brunu]

@erik-bershel thanks for the clarification. What about Azure Devops? When will macOS 15 with Xcode 26 be available in Azure Devops?

[alexsch01]

Wonder if Apple stripped all code needed for non-T2 macs to run MacOS 26

Is that the reason MacOS 15 is the final Intel image?

[ghost]

Wonder if Apple stripped all code needed for non-T2 macs to run MacOS 26

Is that the reason MacOS 15 is the final Intel image?

[alexsch01]

see https://github.com/actions/runner-images/pull/13069