corepack not available on macOS 15

[daveisfera]

Description

With macOS 14 and previous, you can run corepack enable to use yarn as the package manager, but this doesn't work with macOS 15

Platforms affected

• Azure DevOps
• GitHub Actions - Standard Runners
• GitHub Actions - Larger Runners

Runner images affected

• Ubuntu 20.04
• Ubuntu 22.04
• Ubuntu 24.04
• macOS 12
• macOS 13
• macOS 13 Arm64
• macOS 14
• macOS 14 Arm64
• macOS 15
• macOS 15 Arm64
• Windows Server 2019
• Windows Server 2022

Image version and build link

Image: macos-15-arm64
Version: 20241022.250

Is it regression?

Yes (worked with macOS 14)

Expected behavior

Ability to use yarn as the package manager is maintained

Actual behavior

Run corepack enable
/Users/runner/work/_temp/aeab8a80-fdd5-[4](https://github.com/awresports/awresports-app/actions/runs/11678040481/job/32516898250#step:4:5)d0f-b29d-003c16bb6745.sh: line 1: corepack: command not found
Error: Process completed with exit code 127.

Repro steps

1. Run corepack enable
2. Observe failure
3. Try to use yarn without and also fails

[susmitamane]

Hi @daveisfera We will look into the issue and keep you posted with updates.

[daveisfera]

Thanks for the update! I changed it to be a Regression in the initial report, because it's either a regression or a breaking change and either way it should be fixed