Bump virtualenv from 21.11.1 to 21.12.0

[dependabot]

Bumps virtualenv from 21.11.1 to 21.12.0.

Release notes

Sourced from virtualenv's releases.

21.12.0

What's Changed

• ✨ feat(create): point a .venv redirect per PEP 832 by @​gaborbernat in pypa/virtualenv#3204

Full Changelog: pypa/virtualenv@21.11.1...21.12.0

Changelog

Sourced from virtualenv's changelog.

Features - 21.12.0

• Write the PEP 838 <https://peps.python.org/pep-0838/>_ python-version key into pyvenv.cfg, holding the target interpreter's feature release. The new :doc:reference/files page covers it alongside every other file a created environment holds - by :user:konstin. (:issue:3193)

• Point a .venv redirect file in the parent folder at the created environment, per PEP 832 <https://peps.python.org/pep-0832/>_, so editors and type checkers can find it - by :user:gaborbernat.

  • virtualenv leaves a .venv folder alone, and a redirect pointing at an environment it did not create.
  • Pass --no-venv-redirect to opt out.
  • The feature is provisional while PEP 832 is a draft: a minor or patch release may change it in backward incompatible ways to follow the PEP. (:issue:3204)

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v21.11.1 (2026-09-23)

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Commits

• f19165b release 21.12.0
• 554bc8f ✨ feat(create): point a .venv redirect per PEP 832 (#3204)
• See full diff in compare view

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[github-actions]

🤖 Claude Code Review

PR Review: Bump virtualenv 21.11.1 → 21.12.0

The diff is a one-line dev-dependency bump in pyproject.toml:46. It changes no source code.

Code Quality

• ✅ Style: The pin format matches the neighboring entries.
• ✅ No commented-out code.
• ✅ Variable names: Not applicable.
• ✅ DRY: Not applicable.
• ✅ Defects: None found. virtualenv is in the development group only, so it isn't a runtime dependency of the mapper. I didn't check the 21.12.0 release notes, so I can't rule out breaking changes. CI should confirm the build still works.
• ✅ .claude/CLAUDE.md: It isn't modified by this PR. It contains no local-environment-specific content.

Testing

• ✅ Unit and integration tests: Not applicable, because no code was added.
• ✅ Edge cases: Not applicable.
• ✅ Coverage: Unchanged.

Documentation

• ✅ README and API docs: No update needed.
• ⚠️ CHANGELOG.md: Not updated. The repo's recent dependency bumps (Bump flake8 from 7.3.0 to 7.4.1 #169, Bump pylint from 4.0.8 to 4.0.9 #170, Bump virtualenv from 21.10.0 to 21.11.1 #171) may not have changed it either, so this is probably consistent with project practice. Check the project's convention.
• ✅ Markdown: No markdown files changed.

Security

• ✅ No hardcoded credentials.
• ✅ Input validation and error handling: Not applicable.
• ✅ No sensitive data in logs.
• ✅ No .lic files or AQAAAD strings in the diff.

Summary

This is a routine dependabot-style bump with no issues found. It's safe to merge once CI passes.

Automated code review analyzing defects and coding standards