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[macOS] Cmake will be updated to version 4.* on September 8th #12934

@erik-bershel

Description

@erik-bershel

Breaking changes

Cmake will be updated to the current latest version available in Homebrew, which is 4.* at the moment.

Target date

Monday, September 8th.
Image rollout expected to take about 2-4 days.

The motivation for the changes

MacOS images have been using a pinned version of Cmake 3.31.6 since April due to backwards compatibility issues with Cmake 4.* for many projects, now we are forced to switch to the latest version due to dependency issues caused by changes on the Homebrew side.

Initial issue:

Current installation method leads to Homebrew packages issues:

Possible impact

Projects incompatible with the latest versions of Cmake will be broken.

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
  • Windows Server 2019
  • Windows Server 2022
  • Windows Server 2025

Mitigation ways

If necessary, users can build the required version of Cmake from the sources (mirror), or install an older version similar to how we did it (example).

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