v2026.1.4

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v2025.11.12

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v3.4.4

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Changed

• Bound setuptools to a specific constraint setuptools>=68,<=81.
• Raised upper bound of mypyc for the optional pre-built extension to v1.18.2

Removed

• setuptools-scm as a build dependency.

Misc

• Enforced hashes in dev-requirements.txt and created ci-requirements.txt for security purposes.
• Additional pre-built wheels for riscv64, s390x, and armv7l architectures.
• Restore multiple.intoto.jsonl in GitHub releases in addition to individual attestation file per wheel.

v8.3.1

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Released 2025-11-15

• Don't discard pager arguments by correctly using subprocess.Popen. :issue:3039
  :pr:3055
• Replace Sentinel.UNSET default values by None as they're passed through
  the Context.invoke() method. :issue:3066 :issue:3065 :pr:3068
• Fix conversion of Sentinel.UNSET happening too early, which caused incorrect
  behavior for multiple parameters using the same name. :issue:3071 :pr:3079
• Hide Sentinel.UNSET values as None when looking up for other parameters
  through the context inside parameter callbacks. :issue:3136 :pr:3137
• Fix rendering when prompt and confirm parameter prompt_suffix is
  empty. :issue:3019 :pr:3021
• When Sentinel.UNSET is found during parsing, it will skip calls to
  type_cast_value. :issue:3069 :pr:3090

v0.18.1

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• Fix: Allow scientific notation within WKT string - @​autermann (#​573)
• Fix (mysql): Fix failing test for MySQL dialect - @​adrien-berchet (#​567)

v2.29.0

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Features

• Auto enable mTLS when supported certificates are detected (#​869) (f8bf6f9610f3e0e7580f223794c3906513e1fa73)
• make parse_version_to_tuple public (#​864) (c969186f2b66bde1df5e25bbedc5868e27d136f9)

Bug Fixes

• flaky tests due to imprecision in floating point calculation and performance test setup (#​865) (93404080f853699b9217e4b76391a13525db4e3e)
• remove call to importlib.metadata.packages_distributions() for py38/py39 (#​859) (628003e217d9a881d24f3316aecfd48c244a73f0)
• Log version check errors (#​858) (6493118cae2720696c3d0097274edfd7fe2bce67)
• closes tailing streams in bidi classes. (#​851) (c97b3a004044ebf8b35c2a7ba97409d7795e11b0)

v2.28.1

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Bug Fixes

• Remove dependency on packaging and pkg_resources (#​852) (ca59a86)

v2.28.0

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Features

• Provide and use Python version support check (#​832) (d36e896)

v2.27.0

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Features

• Support for async bidi streaming apis (#​836) (9530548)

v2.26.0

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Features

• Add trove classifier for Python 3.14 (#​842) (43690de)

v2.48.0

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Features

• add cryptography as required dependency (#​1929) (52558ae2881b1e6555f6f5c0d76365c15807ead9)
• Support the mTLS IAM domain for Certificate based Access (#​1938) (8dcf91a1b05c85fbbd0bcee78d66e498099102ab)
• add configurable GCE Metadata Server retries (#​1488) (454b441b478ec62bbf1a6ad5bceb6c7cbbfd0c37)
• honor NO_GCE_CHECK environment variable (#​1610) (383c9827536d9376e8248370ce4c2b83e468d027)

Bug Fixes

• resolve circular imports (#​1942) (25c1b064545702cbef087cfcd15fbbb6ef1af74f)
• removes content-header from AWS IMDS get request (#​1934) (97bfea9e02ede953fc8ee154e0deed3a3cfc6dcc)
• detect correct auth when ADC env var is set but empty (#​1374) (bfc07e1050bd0aa86fa3b08cdf70c9b68b5fe6a2)
• replace deprecated utcfromtimestamp (#​1799) (e431f20cf73ccac71926a23ec454468cea92e053)
• Use user_verification=preferred for ReAuth WebAuthn challenge (#​1798) (3f88a24089c4ee6822d510de0db210b54260d873)

v2.47.0

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Features

• drop cachetools dependency in favor of simple local implementation (#​1590) (5c07e1c4f52bc77a1b16fa3b7b3c5269c242f6f4)

Bug Fixes

• Python 3.8 support (#​1918) (60dc20014a35ec4ba71e8065b9a33ecbdbeca97a)

v2.46.0

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Documentation

• update urllib3 docstrings for v2 compatibility (#​1903) (3f1aeea2d1014ea1d244a4c3470e52d74d55404b)

Features

• Recognize workload certificate config in has_default_client_cert_source for mTLS for Agentic Identities (#​1907) (0b9107d573123e358c347ffa067637f992af61b4)

Bug Fixes

• add types to default and verify_token and Request init based on comments in the source code. (#​1588) (59a5f588f7793b59d923a4185c8c07738da618f7)
• fix the document of secure_authorized_session (#​1536) (5d0014707fc359782df5ccfcaa75fd372fe9dce3)
• remove setup.cfg configuration for creating universal wheels (#​1693) (c767531ce05a89002d109f595187aff1fcaacfb7)
• use .read() instead of .content.read() in aiohttp transport (#​1899) (12f4470f808809e8abf1141f98d88ab720c3899b)
• raise RefreshError for missing token in impersonated credentials (#​1897) (94d04e090fdfc61926dd32bc1d65f8820b9cede5)
• Fix test coverage for mtls_helper (#​1886) (02e71631fe275d93825c2e957e830773e75133f7)

v2.45.0

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Features

• Adding Agent Identity bound token support and handling certificate mismatches with retries (#​1890) (b32c934e6b0d09b94c467cd432a0a635e8b05f5c)

v2.44.0

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Features

• support Python 3.14 (#​1822) (0f7097e78f247665b6ef0287d482033f7be2ed6d)
• add ecdsa p-384 support (#​1872) (39c381a5f6881b590025f36d333d12eff8dc60fc)
• MDS connections use mTLS (#​1856) (0387bb95713653d47e846cad3a010eb55ef2db4c)
• Implement token revocation in STS client and add revoke() metho… (#​1849) (d5638986ca03ee95bfffa9ad821124ed7e903e63)
• Add shlex to correctly parse executable commands with spaces (#​1855) (cf6fc3cced78bc1362a7fe596c32ebc9ce03c26b)

Bug Fixes

• Use public refresh method for source credentials in ImpersonatedCredentials (#​1884) (e0c3296f471747258f6d98d2d9bfde636358ecde)
• Add temporary patch to workload cert logic to accomodate Cloud Run mis-configuration (#​1880) (78de7907b8bdb7b5510e3c6fa8a3f3721e2436d7)
• Delegate workload cert and key default lookup to helper function (#​1877) (b0993c7edaba505d0fb0628af28760c43034c959)

v2.43.0

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Features

• Add public wrapper for _mtls_helper.check_use_client_cert which enables mTLS if GOOGLE_API_USE_CLIENT_CERTIFICATE is not set, when the MWID/X.509 cert sources detected (#​1859) Add public wrapper for check_use_client_cert which enables mTLS if
  GOOGLE_API_USE_CLIENT_CERTIFICATE is not set, when the MWID/X.509 cert
  sources detected. Also, fix check_use_client_cert to return boolean
  value.
  Change #​1848 added the check_use_client_cert method that helps know if
  client cert should be used for mTLS connection. However, that was in a
  private class, thus, created a public wrapper of the same function so
  that it can be used by python Client Libraries. Also, updated
  check_use_client_cert to return a boolean value instead of existing
  string value for better readability and future scope.
  --------- (1535eccbff0ad8f3fd6a9775316ac8b77dca66ba)
• Enable mTLS if GOOGLE_API_USE_CLIENT_CERTIFICATE is not set, if the MWID/X.509 cert sources detected (#​1848) The Python SDK will use a hybrid approach for mTLS enablement:

• If the GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable is set
  (either true or false), the SDK will respect that setting. This is
  necessary for test scenarios and users who need to explicitly control
  mTLS behavior.
• If the GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable is not
  set, the SDK will automatically enable mTLS only if it detects Managed
  Workload Identity (MWID) or X.509 Workforce Identity Federation (WIF)
  certificate sources. In other cases where the variable is not set, mTLS
  will remain disabled.
  ** This change also adds the helper method check_use_client_cert and
  it's unit test, which will be used for checking the criteria for setting
  the mTLS to true
  ** This change is only for Auth-Library, other changes will be created
  for Client-Library use-cases.
  --------- (395e405b64b56ddb82ee639958c2e8056ad2e82b)

• onboard google-auth to librarian (#​1838) This PR onboards google-auth library to the Librarian system.
  Wait for
  #​1819. (c503eaa511357d7a76cc1e1f1d3a3be2dabd5bca)

v2.42.1

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Bug Fixes

• Catch ValueError for json.loads() (#​1842) (b074cad)

v2.42.0

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Features

• Add trust boundary support for external accounts. (#​1809) (36ecb1d)

Bug Fixes

• Read scopes from ADC json for impersoanted cred (#​1820) (62c0fc8)

v3.40.0

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Features

• support load_table and list_rows with picosecond timestamp (#​2351) (46764a59ca7a21ed14ad2c91eb7f98c302736c22)
• support timestamp_precision in table schema (#​2333) (8d5785aea50b9f9e5b13bd4c91e8a08d6dac7778)

v3.39.0

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Documentation

• remove experimental annotations from GA features (#​2303) (1f1f9d41e8a2c9016198d848ad3f1cbb88cf77b0)

Features

• adds support for Python runtime 3.14 (#​2322) (6065e14c448cb430189982dd70025fa0575777ca)
• Add ExternalRuntimeOptions to BigQuery routine (#​2311) (fa76e310a16ea6cba0071ff1d767ca1c71514da7)

Bug Fixes

• include io.Base in the PathType (#​2323) (b11e09cb6ee32e451b37eda66bece2220b9ceaba)
• honor custom retry in job.result() (#​2302) (e118b029bbc89a5adbab83f39858c356c23665bf)
• remove ambiguous error codes from query retries (#​2308) (8bbd3d01026c493dfa5903b397d2b01c0e9bf43b)

v2.5.0

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Features

• Add Python 3.14 support (#​333) (c26e587)

Bug Fixes

• Remove setup.cfg configuration for creating universal wheels (#​332) (78ce8a6)
• Resolve issue where pre-release versions of dependencies are installed (#​329) (ab9785d)

v1.7.0

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Features

• Add Python 3.14 support (#​284) (3cb8491)

v1.8.0

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Features

• Add support for Python 3.14 (d3118d9)
• Support Python 3.14 (#​315) (49d0a36)

Bug Fixes

• Update toml file with setup.cfg content (#​319) (42e5268)

v2.8.0

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Features

• Add support for Python 3.13 and 3.14 (#​485) (9937233ded26924179d717b69df7c76c93f8c133)

Bug Fixes

• remove setup.cfg configuration for creating universal wheels (#​484) (75dbecf8d140483da27dffc970e2e87338e71432)
• resolve issue where pre-release versions of dependencies are installed (#​481) (23dafcf3f216a090a0d0c6941048c7da13cbe496)

v1.72.0: googleapis-common-protos 1.72.0

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Features

• add common_resources.proto (#​14851) (e4e0e2a9)

• add field api_version to message ServiceForTransport (#​14843) (81812fde)

v1.71.0: googleapis-common-protos 1.71.0

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Features

• add support for Python 3.14 (#​14699) (8b69540b)

v3.3.1

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==================

• Publish Windows ARM binary wheels, where available.
• Fix compilation for 3.14t on Windows.
• Publish Windows 3.14t binary wheels for Intel.
• Switch from Appveyor for Windows to Github Actions.
• Fix compilation on MIPS with GCC 15 and binutils 2.45. See PR 487 by Rosen Penev <https://github.com/python-greenlet/greenlet/pull/487>_. Note that
  this is not a platform tested by this project's CI.
• Move most project metadata into the static pyproject.toml file.
  This updates licensing information to use the modern
  License-Expression field. See PR 480 by mrbean-bremen <https://github.com/python-greenlet/greenlet/pull/480/>_.

v3.3.0

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==================

• Drop support for Python 3.9.

• Switch to distributing manylinux_2_28 wheels instead of
  manylinux2014 wheels. Likewise, switch from musllinux_1_1 to 1_2.

• Add initial support for free-threaded builds of CPython 3.14. Due to
  limitations, we do not distribute binary wheels for free-threaded
  CPython on Windows. (Free-threaded CPython 3.13 may work, but is
  untested and unsupported.)

  .. caution::

  Under some rare scenarios with free-threaded 3.14, the
  interpreter may crash on accessing a variable or attribute or
  when shutting down. If this happens, try disabling the
  thread-local bytecode cache. See the greenlet documentation for
  more details. See PR 472 by T. Wouters <https://github.com/python-greenlet/greenlet/pull/472>_ for the
  initial free-threaded support and a discussion of the current
  known issues.

v1.76.0

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This is release 1.76.0 (genuine) of gRPC Core.

For gRPC documentation, see grpc.io. For previous releases, see Releases.

This release contains refinements, improvements, and bug fixes, with highlights listed below.

Core

• Prioritize system CA over bundled CA. (#​40583)
• [event_engine] Introduce a event_engine_poller_for_python experiment. (#​40243)
• [metrics] add grpc.lb.backend_service label. (#​40486)

C#

• [csharp tools] #​39374 Grpc.Tools can't process file Suffix name with Upper character. (#​40072)

Python

• [Python] gRPC AsyncIO: Improve CompletionQueue polling performance. (#​39993)

v3.11

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v2.3.0

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=====

• add IniConfig.parse() classmethod with strip_inline_comments parameter (fixes #​55)
  • by default (strip_inline_comments=True), inline comments are properly stripped from values
  • set strip_inline_comments=False to preserve old behavior if needed
• IniConfig() constructor maintains backward compatibility (does not strip inline comments)
• users should migrate to IniConfig.parse() for correct comment handling
• add strip_section_whitespace parameter to IniConfig.parse() (regarding #​4)
  • opt-in parameter to strip Unicode whitespace from section names
  • when True, strips Unicode whitespace (U+00A0, U+2000, U+3000, etc.) from section names
  • when False (default), preserves existing behavior for backward compatibility
• clarify Unicode whitespace handling (regarding #​4)
  • since iniconfig 2.0.0 (Python 3 only), all strings are Unicode by default
  • Python 3's str.strip() has handled Unicode whitespace since Python 3.0 (2008)
  • iniconfig automatically benefits from this in all supported versions (Python >= 3.10)
  • key names and values have Unicode whitespace properly stripped using Python's built-in methods

v2.2.0

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=====

• drop Python 3.8 and 3.9 support (now requires Python >= 3.10)
• add Python 3.14 classifier
• migrate from hatchling to setuptools 77 with setuptools_scm
• adopt PEP 639 license specifiers and PEP 740 build attestations
• migrate from black + pyupgrade to ruff
• migrate CI to uv and unified test workflow
• automate GitHub releases and PyPI publishing via Trusted Publishing
• include tests in sdist
• modernize code for Python 3.10+ (remove future annotations, TYPE_CHECKING guards)
• rename _ParsedLine to ParsedLine

v26.0

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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](https://redi