Yamllint

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- Rule ``anchors``: add new rule to detect undeclared or duplicated anchors
- Python API: prevent using ``is_file_ignored()`` with null ``filepath``
- Docs: fix misleading Python API example
- Docs: fix plain text code snippet example
- Docs: update pre-commit hook example

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- Add support for Python 3.11, drop support for Python 3.6
- Rule ``float-values``: fix bug on strings containing fordidden values
- Stop releasing universal wheels
- Use proper Python 3 I/O type for file reading
- Rule ``indentation``: fix ``indent-sequences`` in nested collections
- Docs: clarify ``disable-line`` and parser errors, give a workaround
- Refactors to apply some pyupgrade suggestions
- Allow using a list of strings in ``ignore`` configuration
- Add ``--list-files`` command line option

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- Better compress PNG image in documentation
- Remove ``__future__`` imports specific to Python 2
- Remove inheritance from ``object`` specific to Python 2
- Simplify GitHub Actions example in documentation
- Update ALE vim plugin link in documentation
- Update license to latest version of GPLv3
- Pre-compile disable/enable rules regexes
- Rule ``quoted-strings``: add ``allow-quoted-quotes`` option
- Add option ``ignore-from-file`` in config

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- Fix failing test on ``key-duplicates`` for old PyYAML versions

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- Add support for Python 3.10, drop Python 3.5
- Fix GitHub Actions workflow
- Refactor ``--format=auto`` logic
- Update GitHub format output to use groups
- Rule ``comments``: allow whitespace after the shebang marker
- Multiple minor fixes in documentation
- Configure Sphinx to make man page show up in apropos
- Attempt to clarify configuration file location in documentation
- Rule ``key-duplicates``: don't crash on redundant closing brackets or braces
- Use ``rstcheck`` to lint documentation on the CI
- Remove UTF-8 headers in Python files, since Python 2 isn't supported
- Add various tests to increase coverage
- Rule ``octal-values``: pre-compile regex for performance
- Add sections for Visual Studio Code and IntelliJ in documentation
- Rule ``new-lines``: add the ``type: platform`` config option
- Add the new rule ``float-values``

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- Restore runtime dependency ``setuptools`` for Python < 3.8