What's Changed

Features

• Add a public VersionRange API and SpecifierSet.to_range(), representing the versions a specifier set accepts as an interval set that supports intersection, union, difference, complement, set relations, membership tests, and filtering. VersionRange.to_specifier_set() converts a range back to a SpecifierSet where a PEP 440 form exists. (#1267, #1270, #1298)
• PEP 808: accept Metadata-Version: 2.6. (#1194)
• Add a limit argument to parse_tag() for compressed tag sets. (#1220)
• Add a prefer_sdist_predicate argument to Pylock.select() to prefer source distributions over wheels for selected packages. (#1334)
• Add pure_python_tags() to generate the pure-Python tags for a Python version without touching the running platform. (#1346)
• Add SpecifierSet.is_subset(), SpecifierSet.is_superset(), and SpecifierSet.is_disjoint(), which compare the versions two specifier sets accept. (#1313)

Behavior adaptations

• Drop support for Python 3.8; packaging now requires Python 3.9 or later. (#1157)
• Prefer native linux_* platform tags over manylinux and musllinux tags on Linux. (#160)

Fixes for versions and specifiers

• Raise InvalidVersion instead of TypeError when Version is given a non-string. (#1319)
• Raise InvalidVersion for non-string pre-release letters passed to Version.from_parts. (#1241)
• Fix an AttributeError when hashing internally trimmed versions. (#1242)
• Fix SpecifierSet.is_unsatisfiable for post-release boundary intersections. (#1257)

Fixes for requirements and markers

• Make Requirement.__hash__ consistent with __eq__ for trailing-zero-equivalent specifiers (e.g. foo==1.0.0 and foo==1.0.0.0), so equal requirements hash equal and deduplicate in sets and dicts. (#1232)
• Normalize requested extra names before comparing or hashing requirements. (#644)
• Preserve a Requirement's specifier prereleases override across a pickle round trip. (#1204)
• Raise InvalidRequirement instead of InvalidSpecifier when a requirement contains an invalid specifier. (#1332)
• Clarify the error for post-release prefix wildcards like ==1.0.post1.*. (#1299)
• Preserve quoting semantics when serializing marker values, so round-tripped markers parse back to the same marker. (#1213)
• Keep the parentheses of a nested group when serializing markers. (#1316)
• Normalize extra and dependency_groups values in nested markers at parse time. (#1246, #1310)
• Raise UndefinedComparison when a set-valued variable like extras is used outside the membership form. (#1265)
• Raise UndefinedEnvironmentName (a KeyError subclass) for missing environment keys during marker evaluation. (#1276)
• Wrap malformed string literal errors in InvalidMarker / InvalidRequirement instead of leaking a low-level error. (#1249)
• Reject requirements and markers with a trailing line break. (#1345)

Fixes for metadata and licenses

• Collect all from_email validation errors into one ExceptionGroup instead of raising the first. (#1268)
• Accept the UTF-8 charset case-insensitively in email payloads. (#1330)
• Reject malformed Description-Content-Type values. (#1329)
• Don't rewrite user values that contain {field} placeholders in error messages. (#1327)
• Route multipart email payloads to unparsed instead of asserting. (#1247)
• Make InvalidMetadata and CyclicDependencyGroup picklable. (#1328)
• Fold every line boundary str.splitlines recognizes when writing a header with RFC822Message. (#1356)
• Raise InvalidLicenseExpression for misplaced WITH clauses and empty LicenseRef- names. (#1266)
• Raise InvalidLicenseExpression instead of KeyError for a LicenseRef- with a + suffix. (#1219)

Fixes for tags and filenames

• Raise InvalidTag from parse_tag() for tags with the wrong number of components. (#1238)
• Reject empty tag components in parse_wheel_filename() and parse_tag(). (#1234)
• Reject an empty project name in the wheel and sdist filename parsers. (#1305)
• Reject wheel filenames with a trailing newline. (#1341)
• Reject wheel tags whose interpreter component is not an identifier. (#577)
• is_normalized_name now rejects names with collapsed double hyphens like a--b. (#1230)
• Fix duplicate explicit abi3t tags. (#1245)
• Forward the warn argument to generic_tags() in sys_tags(). (#1264)
• Raise SystemError for an empty or malformed CPython EXT_SUFFIX. (#1271, #1301)
• Fix a typo in the macOS fat3 architecture name (was fat32). (#1199)

Fixes for pylock, direct URLs, and dependency groups

• Percent-decode pylock artifact file names derived from a url so that local versions (e.g. a wheel with 2.12.1+cu130 encoded as 2.12.1%2Bcu130) yield a valid file name. (#1314)
• Use an explicitly empty tags sequence in Pylock.select() instead of falling back to sys_tags(). (#1349)
• Fix Pylock.select() on Python builds that report a non-PEP 440 python_full_version (e.g. 3.15.0+). (#1179)
• Reject TOML booleans where integers are expected in pylock files. (#1244)
• Add PylockSelectError to packaging.pylock.__all__. (#1202)
• Fix DirectUrl credential stripping for passwords containing @. (#1218)
• Parse the URL scheme case-insensitively when checking for file URLs in direct_url. (#1240)
• Require absolute file URLs for local directories in direct_url. (#1297)
• Collect InvalidRequirement errors while resolving dependency groups instead of leaking them. (#1302)
• Don't cache malformed dependency group parses. (#1248)

Performance

• Implement Specifier and SpecifierSet filtering with the new range engine. (#1120, #1259)
• Cache the default marker environment. (#1250)
• Cache the _manylinux module lookup process-wide. (#1254)
• Add __slots__ to Requirement and the token classes. (#1320, #1258)
• Keep range caches across canonicalization, precompile the wheel project-name pattern, simplify parse_tag(), and skip platform.mac_ver() when the version and arch are given. (#1253, #1256, #1236, #1255)

Documentation

• Describe the validation scope of packaging.pylock. (#1339)
• Explain which packaging.metadata fields are validated. (#1342)
• Document RFC822Policy in the low-level packaging.metadata interface. (#1222)
• Enable nitpicky mode and render missing classes and fields in the API reference. (#1196, #1225, [#1277](htt...

What's Changed

Fixes:

• Fix incorrect sysconfig var name for pyemscripten by @ryanking13 in #1160
• Make Version, Specifier, SpecifierSet, Tag, Marker, and Requirement pickle-safe
  and backward-compatible with pickles created in 25.0-26.1 (including references to the removed
  packaging._structures module) by @eachimei and @henryiii in #1163, #1168, #1170, and #1171
• fix: re-export ExceptionGroup for now by @henryiii in #1164

Documentation:

• docs: add errors section and fix missing details by @henryiii in #1159
• docs(dev): document property-based test suite by @r266-tech in #1167
• Fix typo in DirectUrl documentation by @sbidoul in #1169
• docs(specifiers): add is_unsatisfiable() usage example by @r266-tech in #1166

Internal:

• Enable the auditor persona on zizmor by @henryiii in #1158
• Test new pickle guarantees by @henryiii in #1174
• Use native uv integration in rtd by @henryiii in #1175

New Contributors

• @ryanking13 made their first contribution in #1160
• @eachimei made their first contribution in #1163

Full Changelog: 26.1...26.2

Features:

• PEP 783: add handling for Emscripten wheel tags by @hoodmane in #804 (old name used in implementation, will be fixed in next release)
• PEP 803: add handling for the abi3.abi3t free-threading tag by @ngoldbaum in #1099
• PEP 723: add packaging.dependency_groups module, based on the dependency-groups package by @sirosen in #1065
• Add the packaging.direct_url module by @sbidoul in #944
• Add the packaging.errors module by @henryiii in #1071
• Add SpecifierSet.is_unsatisfiable using ranges (new internals that will be expanded in future versions) by @notatallshaw in #1119
• Add create_compatible_tags_selector to select compatible tags by @sbidoul in #1110
• Add a key argument to SpecifierSet.filter() by @frostming in #1068
• Support & and | for Marker's by @henryiii in #1146
• Normalize Version.__replace__ and add Version.from_parts by @henryiii in #1078
• Add an option to validate compressed tag set sort order in parse_wheel_filename by @r266-tech in #1150

Behavior adaptations:

• Narrow exclusion of pre-releases for <V.postN to match spec by @notatallshaw in #1140
• Narrow exclusion of post-releases for >V to match spec by @notatallshaw in #1141
• Rename format_full_version to _format_full_version to make it visibly private by @r266-tech in #1125
• Restrict local version to ASCII by @henryiii in #1102

Pylock (PEP 751) updates:

• Add pylock select function by @sbidoul in #1092
• Document pylock select() method and PylockSelectError by @r266-tech in #1153
• Add filename property to PackageSdist and PackageWheel, more validation by @sbidoul in #1095
• Give preference to path over url by @sbidoul in #1128
• Validate name/version consistency in file names by @sbidoul in #1114

Fixes:

• Fix > comparison for versions with dev+local segments by @veeceey in #1097
• Fix incorrect self-comparison for InfinityType and NegativeInfinityType by @bysiber in #1093
• Canonicalize when deduplicating specifiers in SpecifierSet by @notatallshaw in #1109
• Fix charset error message formatting by @notatallshaw in #1121
• Handle the key parameter in SpecifierSet.filter when specifiers are empty and prerelease is False by @notatallshaw in #1096
• Standardize inner components of repr output by @henryiii in #1090
• Specifier's === uses original string, not normalized, when available by @notatallshaw in #1124
• Propagate int-max-str-digits ValueError by @notatallshaw in #1155

Performance:

• Add fast path for parsing simple versions (digits and dots only) by @notatallshaw in #1082
• Add fast path for Version to Version comparison by skipping _key property by @notatallshaw in #1083
• Cache Version hash value in dedicated slot by @notatallshaw in #1118
• Overhaul _cmpkey to remove use of custom objects by @notatallshaw in #1116
• Skip __replace__ in Specifier comparison if not needed by @notatallshaw in #1081
• SpecifierSet use tuple instead of frozenset for _specs by @notatallshaw in #1108
• Speed up complex SpecifierSet filtering by implementing cost-based ordering by @notatallshaw in #1105
• Speed up wildcard comparison by @notatallshaw in #1111
• Stream PEP440 filtering in SpecifierSet.filter by @notatallshaw in #1076
• Add __slots__ to Marker by @henryiii in #1147
• Simply Specifier regex by @sirosen in #1106
• Skip using the hash property internally by @notatallshaw in #1115

Internal:

• Add downstream testing by @henryiii in #1049
• Benchmarking suite by @henryiii in #1059
• Benchmark variance reduction by @notatallshaw in #1107
• Add property-based tests for PEP 440 by @notatallshaw in #1144
• Clean up a few collections.namedtuple in tests by @henryiii in #1070
• Do not reload the tags module in tests by @henryiii in #1152
• Limit dir() / tab-completion in REPL by @henryiii in #1011
• Add more __all__/__dir__ by @henryiii in #1069
• Cleanup pre-commit a bit by @henryiii in #1080
• Pin pre-commit file, use dependabot by @henryiii in #1133
• Remove sphinx-toolbox by @henryiii in #1135
• Use docs group, faster readthedocs by @henryiii in #1061
• Add free-threaded Python to CI by @henryiii in #1098
• Simplify combining SpecifierSet.prereleases by @notatallshaw in #1073
• Use direct operator methods in _compare_compatible by @notatallshaw in #1100
• Remove unnecessary if statement in Specifier.prereleases by @notatallshaw in #1074
• Remove unneeded nesting in Specifier.prereleases by @notatallshaw in #1072

Documentation:

• Fix documentation: grammar, typos, formatting, and outdated references by @DimitriPapadopoulos in #1084
• Fix versionadded for Version.from_parts() by @Jackenmen in #1134
• Document & and | operators for combining Marker objects by @r266-tech in #1151
• Expand and clean up Version documentation by @henryiii in #1089
• Move license docs inline by @henryiii in #1131
• Move markers inline by @henryiii in #1104
• Move tags docs to inline by @henryiii in #1130
• Move utilities inline, like other modules by @henryiii in #1103

Benchmarks

Performance improvements since 26.0, from the new integrated benchmark suite:

uv run asv run 26.0..HEAD

New Contributors

• @veeceey made their first contribution in #1097
• @bysiber made their first contribution in #1093
• @sirosen made their first contribution in #1106
• @Jackenmen made their first contribution in #1134
• @ngoldbaum made their first contribution in #1099
• @r266-tech made their first contribution in #1151
• @hoodmane made their first contribution in #804

Full Changelog: 26.0...26.1

Read about the performance improvements here: https://iscinumpy.dev/post/packaging-faster.

What's Changed

Features:

• PEP 751: support pylock by @sbidoul in #900
• PEP 794: import name metadata by @brettcannon in #948
• Support writing metadata by @henryiii in #846
• Support __replace__ for Version by @henryiii in #1003
• Support positional pattern matching for Version and Specifier by @henryiii in #1004

Behavior adaptations:

• PEP 440 handling of prereleases for Specifier.contains, SpecifierSet.contains, and SpecifierSet.filter by @notatallshaw in #897
• Handle PEP 440 edge case in SpecifierSet.filter by @notatallshaw in #942
• Adjust arbitrary equality intersection preservation in SpecifierSet by @notatallshaw in #951
• Return False instead of raising for .contains with invalid version by @Liam-DeVoe in #932
• Support arbitrary equality on arbitrary strings for Specifier and SpecifierSet's filter and contains method. by @notatallshaw in #954
• Only try to parse as Version on certain marker keys, return False on unequal ordered comparsions by @JP-Ellis in #939

Fixes:

• Update _hash when unpickling Tag() by @dholth in #860
• Correct comment and simplify implicit prerelease handling in Specifier.prereleases by @notatallshaw in #896
• Use explicit _GLibCVersion NamedTuple in _manylinux by @cthoyt in #868
• Detect invalid license expressions containing () by @bwoodsend in #879
• Correct regex for metadata 'name' format by @di in #925
• Improve the message around expecting a semicolon by @pradyunsg in #833
• Support nested parens in license expressions by @Liam-DeVoe in #931
• Add space before at symbol in Requirements string by @henryiii in #953
• A root logger use found by ruff LOG, use packaging logger instead by @henryiii in #965
• Better support for subclassing Marker and Requirement by @henryiii in #1022
• Normalize all extras, not just if it comes first by @henryiii in #1024
• Don't produce a broken repr if Marker fails to construct by @henryiii in #1033

Performance:

• Avoid recompiling regexes in the tokenizer for a 3x speedup by @hauntsaninja in #1019
• Improve performance in _manylinux.py by @cthoyt in #869
• Minor cleanups to Version by @bearomorphism in #913
• Skip redundant creation of Versions in specifier comparison by @notatallshaw in #986
• Cache Specifier's Version by @notatallshaw in #985
• Make Version a little faster by @henryiii in #987
• Minor Version regex cleanup by @henryiii in #990
• Faster regex on Python 3.11.5+ by @henryiii in #988 and #1055
• Lazily calculate _key in Version by @notatallshaw in #989 and regression for packaging_legacy fixed by @henryiii in #1048
• Faster canonicalize_version by @henryiii in #993
• Use fullmatch in a couple more places by @henryiii in #992
• Use fullmatch for markers too by @henryiii in #1029
• Use map instead of generator by @henryiii in #996
• Deprecate ._version (_Version, a NamedTuple) by @henryiii in #995 and #1062
• Avoid duplicate Version creation in canonicalize_version by @henryiii in #994
• Add __slots__ to Version by @henryiii in #1001
• Add __slots__ to Specifiers by @henryiii in #1002
• Add __slots__ to Nodes by @henryiii in #1032
• Use version.__replace__ in specifier comparison by @notatallshaw in #999
• Use _get_spec_version in more places in Specifier by @notatallshaw in #1005
• Pull set construction out of function by @henryiii in #1012
• Letter normalization dict for prereleases and the like by @henryiii in #1014
• Avoid normalizing extras again when comparing by @henryiii in #1028
• Speed up Version.__str__ by about 10% by @henryiii in #997
• Increase the performance of canonicalize_name by avoiding a regex by @henryiii in #1030, #1047, and #1064
• Faster zero stripping by @henryiii in #1058

Type annotations:

• Fix a type annotation by @brettcannon in #907
• Fix tags return type in parse_wheel_filename docs by @ncoghlan in #973
• Add type hint for _version in .version.Version by @brettcannon in #927
• Changed static type annotations in prereleases setter method in specifier.py by @subhajitsaha01 in #930
• Statically type the tests by @henryiii in #982

Internal:

• Test and declare support Python 3.14 by @henryiii in #901
• Modernize and speed up tests on Python 3.14 by @henryiii in #903
• Change our license metadata to use an SPDX license expression by @cdce8p in #881
• No need for license-files by @DimitriPapadopoulos in #924
• Update mypy by @hauntsaninja in #891
• Some config updates by @henryiii in #902
• Add spell check and rst check by @henryiii in #904
• Clean up ruff ignores by @henryiii in #905
• Update example for env marker python_version by @trim21 in #908
• Move codespell configuration into pyproject.toml by @yarikoptic in #910
• Check warning a little more precisely by @henryiii in #837
• Speed up mypy a little by @henryiii in #836
• Apply ruff/flake8-pyi rules (PYI) by @DimitriPapadopoulos in #835
• Better local runs for codespell by @henryiii in #911
• Remove outdated/confusing Gist link by @stefan6419846 in #921
• Fix docs and docs ci after #897 landed by @notatallshaw in #926
• Run twine-check on push in CI by @EpicWink in #922
• ruff was renamed ruff-check in pre-commit by @henryiii in #933
• Fix incorrectly implicitly concatenated string in specifiers test by @notatallshaw in #946
• Simplify conditional by @ofek in #949
• Modernize nox, use dependency-groups for tests by @henryiii in #952
• Add more checks that don't affect anything by @henryiii in #957
• Enable Ruff ISC rule by @henryiii in #959
• Ruff code FLY by @henryiii in #963
• pytest log_level is better than log_cli_level by @henryiii in #956
• Ruff code TRY by @henryiii in #961
• Add the ruff PL checks by @henryiii in #964
• Enable Ruff ARG rules by @henryiii in #958
• Ruff PT code (pytest) by @henryiii in #960
• Add ruff DTZ by @henryiii in #968
• Add ruff BLE by @henryiii in #967
• Add the ruff SIM checks by @henryiii in #966
• Adding ruff PERF by @henryiii in #969
• Move some config into coverage config by @henryiii in #971
• Check ruff C4 by @henryiii in #962
• Adding ruff T20 by @henryiii in #972
• Add a tests pass job by @henryiii in https:/...

What's Changed

Fixes:

• Support CPython 3.11.0-3.11.4 and older PyPy3.11 by @henryiii in #1055

Performance:

• Faster zero stripping by @henryiii in #1058

CI:

• Test on first public release of CPython 3.11 and newer by @henryiii in #1056
• Fix publication job (again) by @henryiii in #1051
• Use actionlint to check CI workflows by @miketheman in #1052

Documentation:

• Fix formatting of distribution types in metadata.rst by @brettcannon in #1053

Full Changelog: 26.0rc2...26.0rc3

What's Changed

Fixes:

• Fix regression in (private) Version._key for packaging_legacy by @henryiii in #1048

Performance:

• Tiny import time improvement and simplification by @henryiii in #1047

Internal:

• Fix type hint of function used with contextlib.contextmanager by @SpecLad in #1046
• Always run tests by @henryiii in #1044
• Fix a changelog number by @henryiii in #1042
• Fix the publish job by @henryiii in #1043
• Get the correct tag on publish by @henryiii in #1045

Full Changelog: 26.0rc1...26.0rc2

What's Changed

Features:

• PEP 751: support pylock by @sbidoul in #900
• PEP 794: import name metadata by @brettcannon in #948
• Support writing metadata by @henryiii in #846
• Support __replace__ for Version by @henryiii in #1003
• Support positional pattern matching for Version and Specifier by @henryiii in #1004

Behavior adaptations:

• PEP 440 handling of prereleases for Specifier.contains, SpecifierSet.contains, and SpecifierSet.filter by @notatallshaw in #897
• Handle PEP 440 edge case in SpecifierSet.filter by @notatallshaw in #942
• Adjust arbitrary equality intersection preservation in SpecifierSet by @notatallshaw in #951
• Return False instead of raising for .contains with invalid version by @Liam-DeVoe in #932
• Support arbitrary equality on arbitrary strings for Specifier and SpecifierSet's filter and contains method. by @notatallshaw in #954
• Only try to parse as Version on certain marker keys, return False on unequal ordered comparsions by @JP-Ellis in #939

Fixes:

• Update _hash when unpickling Tag() by @dholth in #860
• Correct comment and simplify implicit prerelease handling in Specifier.prereleases by @notatallshaw in #896
• Use explicit _GLibCVersion NamedTuple in _manylinux by @cthoyt in #868
• Detect invalid license expressions containing () by @bwoodsend in #879
• Correct regex for metadata 'name' format by @di in #925
• Improve the message around expecting a semicolon by @pradyunsg in #833
• Support nested parens in license expressions by @Liam-DeVoe in #931
• Add space before at symbol in Requirements string by @henryiii in #953
• A root logger use found by ruff LOG, use packaging logger instead by @henryiii in #965
• Better support for subclassing Marker and Requirement by @henryiii in #1022
• Normalize all extras, not just if it comes first by @henryiii in #1024
• Don't produce a broken repr if Marker fails to construct by @henryiii in #1033

Performance:

• Avoid recompiling regexes in the tokenizer for a 3x speedup by @hauntsaninja in #1019
• Improve performance in _manylinux.py by @cthoyt in #869
• Minor cleanups to Version by @bearomorphism in #913
• Skip redundant creation of Versions in specifier comparison by @notatallshaw in #986
• Cache Specifier's Version by @notatallshaw in #985
• Make Version a little faster by @henryiii in #987
• Minor Version regex cleanup by @henryiii in #990
• Faster regex on Python 3.11+ by @henryiii in #988
• Lazily calculate _key in Version by @notatallshaw in #989
• Faster canonicalize_version by @henryiii in #993
• Use fullmatch in a couple more places by @henryiii in #992
• Use fullmatch for markers too by @henryiii in #1029
• Use map instead of generator by @henryiii in #996
• Drop ._version (_Version, a NamedTuple) by @henryiii in #995
• Avoid duplicate Version creation in canonicalize_version by @henryiii in #994
• Add __slots__ to Version by @henryiii in #1001
• Add __slots__ to Specifiers by @henryiii in #1002
• Add __slots__ to Nodes by @henryiii in #1032
• Use version.__replace__ in specifier comparison by @notatallshaw in #999
• Use _get_spec_version in more places in Specifier by @notatallshaw in #1005
• Pull set construction out of function by @henryiii in #1012
• Letter normalization dict for prereleases and the like by @henryiii in #1014
• Avoid normalizing extras again when comparing by @henryiii in #1028
• Speed up Version.__str__ by about 10% by @henryiii in #997
• Double the performance of canonicalize_name by avoiding a regex by @henryiii in #1030

Type annotations:

• Fix a type annotation by @brettcannon in #907
• Fix tags return type in parse_wheel_filename docs by @ncoghlan in #973
• Add type hint for _version in .version.Version by @brettcannon in #927
• Changed static type annotations in prereleases setter method in specifier.py by @subhajitsaha01 in #930
• Statically type the tests by @henryiii in #982

Internal:

• Test and declare support Python 3.14 by @henryiii in #901
• Modernize and speed up tests on Python 3.14 by @henryiii in #903
• Change our license metadata to use an SPDX license expression by @cdce8p in #881
• No need for license-files by @DimitriPapadopoulos in #924
• Update mypy by @hauntsaninja in #891
• Some config updates by @henryiii in #902
• Add spell check and rst check by @henryiii in #904
• Clean up ruff ignores by @henryiii in #905
• Update example for env marker python_version by @trim21 in #908
• Move codespell configuration into pyproject.toml by @yarikoptic in #910
• Check warning a little more precisely by @henryiii in #837
• Speed up mypy a little by @henryiii in #836
• Apply ruff/flake8-pyi rules (PYI) by @DimitriPapadopoulos in #835
• Better local runs for codespell by @henryiii in #911
• Remove outdated/confusing Gist link by @stefan6419846 in #921
• Fix docs and docs ci after #897 landed by @notatallshaw in #926
• Run twine-check on push in CI by @EpicWink in #922
• ruff was renamed ruff-check in pre-commit by @henryiii in #933
• Fix incorrectly implicitly concatenated string in specifiers test by @notatallshaw in #946
• Simplify conditional by @ofek in #949
• Modernize nox, use dependency-groups for tests by @henryiii in #952
• Add more checks that don't affect anything by @henryiii in #957
• Enable Ruff ISC rule by @henryiii in #959
• Ruff code FLY by @henryiii in #963
• pytest log_level is better than log_cli_level by @henryiii in #956
• Ruff code TRY by @henryiii in #961
• Add the ruff PL checks by @henryiii in #964
• Enable Ruff ARG rules by @henryiii in #958
• Ruff PT code (pytest) by @henryiii in #960
• Add ruff DTZ by @henryiii in #968
• Add ruff BLE by @henryiii in #967
• Add the ruff SIM checks by @henryiii in #966
• Adding ruff PERF by @henryiii in #969
• Move some config into coverage config by @henryiii in #971
• Check ruff C4 by @henryiii in #962
• Adding ruff T20 by @henryiii in #972
• Add a tests pass job by @henryiii in #977
• Add ruff TC by @henryiii in #980
• Adding part of ruff RET by @henryiii in #979
• Reorder mypy check by @henryiii in #983
• Enable ruff ALL by @henryiii in #984
• Link back to repo/source in furo by ...

What's Changed

• Re-add a test for Unicode file name parsing by @Siddhesh-Agarwal in #863
• Upgrade to ruff 0.9.1 by @DimitriPapadopoulos in #865
• Add support for PEP 738 Android tags by @mhsmith in #880
• feat(markers): support 'extras' and 'dependency_groups' markers by @frostming in #888

New Contributors

• @Siddhesh-Agarwal made their first contribution in #863
• @mhsmith made their first contribution in #880
• @frostming made their first contribution in #888

Full Changelog: 24.2...25.0

What's Changed

• The source is auto-formatted with ruff, not black by @DimitriPapadopoulos in #798
• Bump the github-actions group across 1 directory with 3 updates by @dependabot in #813
• Apply ruff rules (RUF) by @DimitriPapadopoulos in #800
• Fix typo in Version __str__ by @aryanpingle in #817
• Bump the github-actions group with 3 updates by @dependabot in #819
• Get rid of duplicate test cases by @DimitriPapadopoulos in #821
• Fix doc for canonicalize_version and a typo in a docstring by @Laurent-Dx in #801
• docs: public/base_version comparison by @henryiii in #818
• Apply ruff/bugbear rules (B) by @DimitriPapadopoulos in #787
• Apply ruff/pyupgrade rules (UP) by @DimitriPapadopoulos in #786
• Add a changelog entry for dropping Python 3.7 support by @alexwlchan in #824
• Patch python_full_version unconditionally by @jaraco in #825
• Refactor canonicalize_version by @jaraco in #793
• Allow creating a SpecifierSet from a list of specifiers by @pfmoore in #777
• Fix uninformative error message by @abravalheri in #830
• Fix prerelease detection for > and < by @notatallshaw in #794
• Bump the github-actions group across 1 directory with 4 updates by @dependabot in #839
• Add support for PEP 730 iOS tags. by @freakboy3742 in #832
• Update the changelog to reflect 24.1 changes by @pradyunsg in #840
• Mention updating changelog in release process by @pradyunsg in #841
• Add a comment as to why Metadata.name isn't normalized by @brettcannon in #842
• Use !r formatter for error messages with filenames. by @Carreau in #844
• PEP 639: Implement License-Expression and License-File by @ewdurbin in #828
• Bump the github-actions group with 4 updates by @dependabot in #852
• Upgrade to latest mypy by @hauntsaninja in #853
• Extraneous quotes by @ewdurbin in #848

New Contributors

• @aryanpingle made their first contribution in #817
• @Laurent-Dx made their first contribution in #801
• @alexwlchan made their first contribution in #824
• @jaraco made their first contribution in #825
• @notatallshaw made their first contribution in #794
• @freakboy3742 made their first contribution in #832
• @Carreau made their first contribution in #844
• @ewdurbin made their first contribution in #828

Full Changelog: 24.1...24.2

What's Changed

• pyupgrade/black/isort/flake8 → ruff by @DimitriPapadopoulos in #769
• Add support for Python 3.13 and drop EOL 3.7 by @hugovk in #783
• Bump the github-actions group with 4 updates by @dependabot in #782
• Fix typo in _parser docstring by @pradyunsg in #784
• Modernise type annotations using FA rules from ruff by @pradyunsg in #785
• Document markers.default_environment() by @edgarrmondragon in #753
• Bump the github-actions group with 3 updates by @dependabot in #789
• Work around platform.python_version() returning non PEP 440 compliant version for non-tagged CPython builds by @sbidoul in #802

New Contributors

• @dependabot made their first contribution in #782
• @edgarrmondragon made their first contribution in #753

Full Changelog: 24.0...24.1