Sourced from virtualenv's releases.

20.33.1

What's Changed

• release 20.33.0 by @​gaborbernat in pypa/virtualenv#2929
• fix(test): Restore mtime of py_info.py in test by @​esafak in pypa/virtualenv#2938
• [pre-commit.ci] pre-commit autoupdate by @​pre-commit-ci[bot] in pypa/virtualenv#2937
• fix: Correctly unpack _get_tcl_tk_libs() response in PythonInfo by @​esafak in pypa/virtualenv#2940
• chore: Request shell and python details in bug reports by @​esafak in pypa/virtualenv#2942

Full Changelog: https://github.com/pypa/virtualenv/compare/20.33.0...20.33.1

20.33.0

What's Changed

• release 20.32.0 by @​gaborbernat in pypa/virtualenv#2908
• [pre-commit.ci] pre-commit autoupdate by @​pre-commit-ci[bot] in pypa/virtualenv#2909
• Fix nushell deprecation warnings by @​gaborbernat in pypa/virtualenv#2910
• test: Use @pytest.mark.flaky instead of @flaky.flaky by @​mgorny in pypa/virtualenv#2911
• [pre-commit.ci] pre-commit autoupdate by @​pre-commit-ci[bot] in pypa/virtualenv#2912
• fix: handle StopIteration in discovery by @​esafak in pypa/virtualenv#2913
• fix: Improve symlink check and sysconfig path handling by @​esafak in pypa/virtualenv#2914
• docs: Recommend specific python version for virtualenv by @​esafak in pypa/virtualenv#2916
• fix: Force UTF-8 encoding for pip subprocess by @​esafak in pypa/virtualenv#2918
• fix: Prevent crash on file in PATH during discovery by @​esafak in pypa/virtualenv#2917
• fix: --try-first-with was overriding an absolute --python path by @​esafak in pypa/virtualenv#2921
• fix 'Too many open files' error and improve error message by @​esafak in pypa/virtualenv#2922
• fix(testing): Prevent logging setup when --help is passed by @​esafak in pypa/virtualenv#2923
• fix cache invalidation for PythonInfo by @​esafak in pypa/virtualenv#2925
• fix: Update venv redirector detection for Python 3.13 on Windows by @​esafak in pypa/virtualenv#2920
• feat: Add Tcl/Tkinter support by @​esafak in pypa/virtualenv#2928

Full Changelog: https://github.com/pypa/virtualenv/compare/20.32.0...20.33.0

20.32.0

What's Changed

• release 20.31.2 by @​gaborbernat in pypa/virtualenv#2886
• Fix the CI by @​gaborbernat in pypa/virtualenv#2904
• activate.fish: update fish major version check by @​r5d in pypa/virtualenv#2891
• Fix: Ignore missing absolute paths for python discovery by @​esafak in pypa/virtualenv#2907
• Discover uv-managed Python installations by @​edgarrmondragon in pypa/virtualenv#2902
• Add warning for incorrect usage of Nushell activation script by @​esafak in pypa/virtualenv#2906
• Update index.rst, compatibility section added, other subheadings created by @​velle in pypa/virtualenv#2897
• Bump setuptools version by @​gaborbernat in pypa/virtualenv#2900

... (truncated)

Sourced from virtualenv's changelog.

v20.33.1 (2025-08-05)

Bugfixes - 20.33.1

- Correctly unpack _get_tcl_tk_libs() response in PythonInfo.
  Contributed by :user:`esafak`. (:issue:`2930`)
- Restore `py_info.py` timestamp in `test_py_info_cache_invalidation_on_py_info_change`
  Contributed by :user:`esafak`. (:issue:`2933`)
v20.33.0 (2025-08-03)
Features - 20.33.0

• Added support for Tcl and Tkinter. You're welcome. Contributed by :user:esafak. (:issue:425)

Bugfixes - 20.33.0

- Prevent logging setup when --help is passed, fixing a flaky test.
  Contributed by :user:`esafak`. (:issue:`u`)
- Fix cache invalidation for PythonInfo by hashing `py_info.py`.
  Contributed by :user:`esafak`. (:issue:`2467`)
- When no discovery plugins are found, the application would crash with a StopIteration.
  This change catches the StopIteration and raises a RuntimeError with a more informative message.
  Contributed by :user:`esafak`. (:issue:`2493`)
- Stop `--try-first-with` overriding absolute `--python` paths.
  Contributed by :user:`esafak`. (:issue:`2659`)
- Force UTF-8 encoding for pip download
  Contributed by :user:`esafak`. (:issue:`2780`)
- Creating a virtual environment on a filesystem without symlink-support would fail even with `--copies`
  Make `fs_supports_symlink` perform a real symlink creation check on all platforms.
  Contributed by :user:`esafak`. (:issue:`2786`)
- Add a note to the user guide recommending the use of a specific Python version when creating virtual environments.
  Contributed by :user:`esafak`. (:issue:`2808`)
- Fix 'Too many open files' error due to  a file descriptor leak in virtualenv's locking mechanism.
  Contributed by :user:`esafak`. (:issue:`2834`)
- Support renamed Windows venv redirector (`venvlauncher.exe` and `venvwlauncher.exe`) on Python 3.13
  Contributed by :user:`esafak`. (:issue:`2851`)
- Resolve Nushell activation script deprecation warnings by dynamically selecting the ``--optional`` flag for Nushell
  ``get`` command on version 0.106.0 and newer, while retaining the deprecated ``-i`` flag for older versions to maintain
  compatibility. Contributed by :user:`gaborbernat`. (:issue:`2910`)
v20.32.0 (2025-07-20)
Features - 20.32.0

• Warn on incorrect invocation of Nushell activation script - by :user:esafak. (:issue:nushell_activation)

... (truncated)

• 8cea2c7 release 20.33.1
• cac4942 Merge pull request #2942 from esafak/bug_report_template
• 91d3618 chore: Request shell and python details in bug reports
• f528c19 Merge pull request #2940 from esafak/fix/2930-tcl-library-bug
• a7c6824 Merge branch 'main' into fix/2930-tcl-library-bug
• 034f717 [pre-commit.ci] auto fixes from pre-commit.com hooks
• 8c9e431 Iterate on quoting
• 59078c5 Remove investigation scripts, add changelog entry
• 7336c43 fix: Correctly unpack _get_tcl_tk_libs() response in PythonInfo
• 94004cc Merge pull request #2937 from pypa/pre-commit-ci-update-config
• Additional commits viewable in compare view

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