		Changelog
		---------

		26.0rc3 - 2026-01-15
		~~~~~~~~~~~~~~~~~~~~

		Fixes:

		* Support CPython 3.11.0-3.11.4 and older PyPy3.11 (:pull:`1055`)

		Performance:

		* Faster zero stripping (:pull:`1058`)

		CI:

		* Test on first public release of CPython 3.11 and newer (:pull:`1056`)
		* Fix publication job (again) (:pull:`1051`)
		* Use ``actionlint`` to check CI workflows (:pull:`1052`)

		26.0rc2 - 2026-01-12
		@@ -5,0 +22,0 @@ ~~~~~~~~~~~~~~~~~~~~

+1

-1

docs/metadata.rst

		@@ -8,3 +8,3 @@ Metadata
		Both `source distributions`_ and `binary distributions`_
		(_sdists_ and _wheels_, respectively) contain files recording the
		(sdists and wheels, respectively) contain files recording the
		`core metadata`_ for the distribution. This information is used for
		@@ -11,0 +11,0 @@ everything from recording the name of the distribution to the

+1

-1

PKG-INFO

		Metadata-Version: 2.4
		Name: packaging
		Version: 26.0rc2
		Version: 26.0rc3
		Summary: Core utilities for Python packages
		@@ -5,0 +5,0 @@ Author-email: Donald Stufft <donald@stufft.io>

+1

-1

src/packaging/__init__.py

		@@ -9,3 +9,3 @@ # This file is dual licensed under the terms of the Apache License, Version

		__version__ = "26.0rc2"
		__version__ = "26.0rc3"

		@@ -12,0 +12,0 @@ __author__ = "Donald Stufft and individual contributors"

+17

-16

src/packaging/version.py

		@@ -179,4 +179,11 @@ # This file is dual licensed under the terms of the Apache License, Version

		# Possessive qualifiers were added in Python 3.11.
		# CPython 3.11.0-3.11.4 had a bug: https://github.com/python/cpython/pull/107795
		# Older PyPy also had a bug.
		VERSION_PATTERN = (
		_VERSION_PATTERN_OLD if sys.version_info < (3, 11) else _VERSION_PATTERN
		_VERSION_PATTERN_OLD
		if (sys.implementation.name == "cpython" and sys.version_info < (3, 11, 5))
		or (sys.implementation.name == "pypy" and sys.version_info < (3, 11, 13))
		or sys.version_info < (3, 11)
		else _VERSION_PATTERN
		)
		@@ -619,8 +626,9 @@ """
		"""
		# Unlike _strip_trailing_zeros, this leaves one 0.
		# This leaves one 0.
		rel = super().release
		i = len(rel)
		len_release = len(rel)
		i = len_release
		while i > 1 and rel[i - 1] == 0:
		i -= 1
		return rel[:i]
		return rel if i == len_release else rel[:i]

		@@ -667,13 +675,2 @@

		def _strip_trailing_zeros(release: tuple[int, ...]) -> tuple[int, ...]:
		# We want to strip trailing zeros from a tuple of values. This starts
		# from the end and returns as soon as it finds a non-zero value. When
		# reading a lot of versions, this is a fairly hot function, so not using
		# enumerate/reversed, which is slightly slower.
		for i in range(len(release) - 1, -1, -1):
		if release[i] != 0:
		return release[: i + 1]
		return ()


		def _cmpkey(
		@@ -689,3 +686,7 @@ epoch: int,
		# trailing zeros removed. We will use this for our sorting key.
		_release = _strip_trailing_zeros(release)
		len_release = len(release)
		i = len_release
		while i and release[i - 1] == 0:
		i -= 1
		_release = release if i == len_release else release[:i]

		@@ -692,0 +693,0 @@ # We need to "trick" the sorting algorithm to put 1.0.dev0 before 1.0a0.

packaging - pypi Package Compare versions

Improved metrics