[release/v7.5.12] Change Windows CI to stop using PowerShell 5.1 - #28064
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Aditya Patwardhan (adityapatwardhan) merged 1 commit intoSep 23, 2026
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What changed in this PR
Backports the Windows CI migration from Windows PowerShell 5.1 to PowerShell 7.
Changes:
- Changes the Windows bootstrap shell to
pwsh. - Removes the obsolete PowerShell 5.1 requirement comment.
| File | Description |
|---|---|
tools/WindowsCI.psm1 |
Removes outdated documentation. |
.github/actions/test/windows/action.yml |
Uses PowerShell 7 for Windows bootstrap. |
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Dongbo Wang (daxian-dbw)
approved these changes
Sep 23, 2026
Justin Chung (jshigetomi)
approved these changes
Sep 23, 2026
Aditya Patwardhan (adityapatwardhan)
merged commit Sep 23, 2026
346951a
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PowerShell:release/v7.5.12
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Aditya Patwardhan (adityapatwardhan)
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September 23, 2026 20:39
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Backport of #27940 to release/v7.5.12
Triggered by Aditya Patwardhan (@adityapatwardhan) on behalf of Dongbo Wang (@daxian-dbw)
Original CL Label: CL-BuildPackaging
/cc @PowerShell/powershell-maintainers
Impact
REQUIRED: Choose either Tooling Impact or Customer Impact (or both). At least one checkbox must be selected.
Tooling Impact
Required CI tooling update so Windows validation uses PowerShell 7 rather than Windows PowerShell 5.1.
Customer Impact
Regression
REQUIRED: Check exactly one box.
This is not a regression.
Testing
The change cherry-picked cleanly. The final diff passes git diff --check, the affected tools/WindowsCI.psm1 module parses successfully with the PowerShell parser, and the resulting diff was reviewed to confirm it only changes the Windows action shell from powershell to pwsh and removes the obsolete Windows PowerShell requirement comment.
Risk
REQUIRED: Check exactly one box.
Medium risk because this changes the shell used for Windows CI bootstrap, but the change is limited to replacing Windows PowerShell with pwsh and removing an obsolete requirement comment. It cherry-picked cleanly and the affected PowerShell module parses successfully.