Downgrade CMake to 3.31

[seagetch]

Tool name

cmake

Tool license

BSD 3-clause

Add or update?

• Add
• Update

Desired version

3.31

Approximate size

No response

Brief description of tool

Since cmake 4.0.0 breaks backward compatibility, it should not be altered silently unless user explicitly specifies it in the script.

URL for tool's homepage

No response

Provide a basic test case to validate the tool's functionality.

Platforms where you need the tool

• Azure DevOps
• GitHub Actions

Runner images where you need the tool

• Ubuntu 20.04
• 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

Can this tool be installed during the build?

Tool installation time in runtime

No response

Are you willing to submit a PR?

No response

[oursland]

This also caught my team and broke our CI.

[oursland]

Now the Windows builds are failing as well due to installing cmake==4.0.0.

[ctz]

Note the documentation in this repo is also out of date, eg. https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2404-Readme.md says:

CMake 3.31.6

[gtjoseph]

Caught us as well. A major version bump of any package should not be done to the existing "latest" image.

Oh, and I'd add that this should be a "bug report" not a "feature request" since it was done without warning and without even updating the documentation.

[gtjoseph]

And I just realized that the release this change is in is in "pre-release" status so how did it get actually pushed to ubuntu:latest???

[pereyra-m]

We had to downgrade CMake manually in all our workflows.
I also think the breaking changes must be handled in a different way.