[macOS] The macOS 13 Ventura based runner images will begin deprecation on September 22nd and will be fully unsupported by December 4th for GitHub and ADO

[erik-bershel]

Breaking changes

GitHub Actions is starting the deprecation process for macOS 13 and macOS 13 arm64. While the images are being deprecated, You may experience longer queue times during peak usage hours. Deprecation will begin on September 22nd, 2025 and the images will be fully unsupported by December 8th, 2025 for GitHub Actions and Azure DevOps.

To raise awareness of the upcoming removal, we will temporarily fail jobs using macOS 13 and macOS 13 arm64. Builds that are scheduled to run during the brownout periods will fail. The brownouts are scheduled for the following dates and times:

• November 4, 14:00 UTC - November 5, 00:00 UTC
• November 11, 14:00 UTC - November 12, 00:00 UTC
• November 18, 14:00 UTC - November 19, 00:00 UTC
• November 25, 14:00 UTC - November 26, 00:00 UTC

For users that require the x86_64 (Intel) environment, we are also 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. For more information see this announcement: #13045

Target date

September 22 - December 4

The motivation for the changes

GitHub Actions maintains the latest two stable versions of any given OS version.

Possible impact

Workflows using the macos-13 image label will be terminated with an error.

Platforms affected

• Azure DevOps
• GitHub Actions

Runner images affected

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

Mitigation ways

• Workflows using the macos-13 image label should be updated to macos-latest, macos-14, or macos-15.
• Workflows that depend on x86_64 (Intel CPU) can be migrated to use the macos-15-intel label, which is currently planned as the last supported image based on Intel CPU.