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Backport Python 3.13 pipeline fix to release/1.44.0 - #2023

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Eduardo Villalpando Mello (edvilme) merged 1 commit into
release/1.44.0from
backport-python-runtime-1-44
Nov 13, 2026
Merged

Eduardo Villalpando Mello (edvilme) merged 1 commit into
release/1.44.0from
backport-python-runtime-1-44

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Summary

Cherry-pick 7ef5f5a166447aaac9eb4ac44a6d953a1ec4c5b1 from #2018 onto release/1.44.0 using git cherry-pick -x.

  • Change only the stable and pre-release Azure UsePythonVersion@0 selectors from Python 3.9 to cached Python 3.13.
  • Preserve the release manifest at 1.44.0, publishing settings, approval gates, and all other release contents.
  • Backport commit: 613baac414fab7e9cc18c972dc7982e44cfd8aa6.

Validation

  • Backported pipeline files exactly match the merged source commit.
  • Parsed YAML comparison confirms only the two Python selectors change.
  • Both actual stable Python build commands pass on Python 3.13 against an isolated copy of the release manifest, preserving 1.44.0.
  • Prettier, whitespace checks, and clean-worktree verification pass.

Branch protection

A direct, non-forced push was rejected because release/1.44.0 requires pull requests and the VS Code PR Check status. This PR follows that policy; no protection bypass, manual pipeline queue, or publishing action was attempted.

## Summary
- Use Python 3.13 instead of Python 3.9 in both legacy Azure stable and
pre-release pipelines.
- Preserve build steps, release versions, supported extension Python
versions, publication defaults, and manual approval gates.

## Why
Monaco release build
[496307](https://dev.azure.com/monacotools/Monaco/_build/results?buildId=496307)
for `release/1.44.0` failed because Python 3.9 is not cached. The
fallback installer downloads Python, but its pip upgrade is blocked by
the proxy with HTTP 403. The failing Linux agents already contain Python
3.13.

## Validation
- Prettier passes for both pipeline files.
- Parsed YAML comparison confirms the only semantic changes are the two
Python version selectors.
- Executed both actual Python build commands from each pipeline on
Python 3.13 against isolated stable `1.44.0` and pre-release `1.45.0`
manifests; all pass with versions preserved.
- `git diff --check` passes.

## Scope and rollout
This PR targets `main`. The existing `release/1.44.0` branch will need
the fix backported before its Monaco release is rerun. No pipelines were
enabled or queued; DevDiv stable remains disabled.

Weekly Azure runtime tracking is not implemented here: the pinned
`check-python-versions` action only accepts GitHub Actions test matrices
and explicitly excludes build-runtime pins. Adding these Azure YAML
files to its `files` input would fail the weekly workflow. Supporting
them requires a separate shared-action enhancement and a decision on
build-runtime policy rather than reusing newest-RC test coverage.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 956d3afd-ae0b-486c-a60c-3a6276c23213
(cherry picked from commit 7ef5f5a)
@StellaHuang95

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🔒 Automated review in progress — Stella Huang (@StellaHuang95) is auto-reviewing this PR.

@StellaHuang95

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Reviewed commit: 613baac414fab7e9cc18c972dc7982e44cfd8aa6

Result: 🔴 could-not-verify

Verification details

Verification: Automated verification is best effort. The PR author remains responsible for testing.

Summary: [unavailable] Container verification could not start and local execution was not authorized for this PR HEAD: Podman CLI is not installed or is not on PATH.

Test runs: none recorded.

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Approved via Review Center.

@StellaHuang95 Stella Huang (StellaHuang95) added the review-auto:approved Automated review: no blocking findings (approval posted). label Nov 13, 2026
@edvilme
Eduardo Villalpando Mello (edvilme) merged commit a56cbc0 into release/1.44.0 Nov 13, 2026
46 checks passed
@edvilme
Eduardo Villalpando Mello (edvilme) deleted the backport-python-runtime-1-44 branch November 13, 2026 00:35
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3 participants