Python Release Python 3.14.2 | Python.org

Notice: This page displays a fallback because interactive scripts did not run. Possible causes include disabled JavaScript or failure to load scripts or stylesheets. Note: Python 3.14.2 has been superseded by Python 3.14.3. Release date: Dec. 5, 2025 This is the second maintenance release of Python 3.14 Python 3.14.2 is the second maintenance release of 3.14, containing 18 bugfixes, build improvements and documentation changes since 3.14.1. This is an expedited release to fix the following regressions: gh-142206: Exceptions in multiprocessing in running programs while upgrading Python. gh-142214: Exceptions in dataclasses without __init__ method. gh-142218: Segmentation faults and assertion failures in insertdict. gh-140797: Crash when using multiple capturing groups in re.Scanner And these security fixes: gh-142145: Remove quadratic behavior in node ID cache clearing (CVE-2025-12084) gh-119452: Fix a potential virtual memory allocation denial of service in http.server Major new features of the 3.14 series, compared to 3.13 Some of the major new features and changes in Python 3.14 are: New features PEP 779: Free-threaded Python is officially supported PEP 649: The evaluation of annotations is now deferred, improving the semantics of using annotations. PEP 750: Template string literals (t-strings) for custom string processing, using the familiar syntax of f-strings. PEP 734: Multiple interpreters in the stdlib. PEP 784: A new module compression.zstd providing support for the Zstandard compression algorithm. PEP 758: except and except* expressions may now omit the brackets. Syntax highlighting in PyREPL, and support for color in unittest, argparse, json and calendar CLIs. PEP 768: A zero-overhead external debugger interface for CPython. UUID versions 6-8 are now supported by the uuid module, and generation of versions 3-5 are up to 40% faster. PEP 765: Disallow return/break/continue that exit a finally block. PEP 741: An improved C API for configuring Python. A new type of interpreter. For certain newer compilers, this interpreter provides significantly better performance. Opt-in for now, requires building from source. Improved error messages. Builtin implementation of HMAC with formally verified code from the HACL* project. A new command-line interface to inspect running Python processes using asynchronous tasks. The pdb module now supports remote attaching to a running Python process. For more details on the changes to Python 3.14, see What’s new in Python 3.14. Build changes PEP 761: Python 3.14 and onwards no longer provides PGP signatures for release artifacts. Instead, Sigstore is recommended for verifiers. Official macOS and Windows release binaries include an experimental JIT compiler. Official Android binary releases are now available. Incompatible changes, removals and new deprecations Incompatible changes Python removals and deprecations C API removals and deprecations Overview of all pending deprecations Python install manager The installer we offer for Windows is being replaced by our new install manager, which can be installed from the Windows Store or from its download page. See our documentation for more information. The JSON file available for download contains the list of all the installable packages available as part of this release, including file URLs and hashes, but is not required to install the latest release. The traditional installer will remain available throughout the 3.14 and 3.15 releases. More resources Online documentation PEP 745, 3.14 Release Schedule Report bugs at github.com/python/cpython/issues Help fund Python directly (or via GitHub Sponsors) and support the Python community Enjoy the new release Thanks to all of the many volunteers who help make Python Development and these releases possible! Please consider supporting our efforts by volunteering yourself or through organisation contributions to the Python Software Foundation. Full Changelog macOS Download macOS installer Windows Download Python install manager Source release Download XZ compressed source tarball Version Operating system Description File size Sigstore SBOM MD5 checksum Gzipped source tarball Source release 29.2 MB .sigstore SPDX 213fdd3cf28e89e2d779b6ae444ae8aa XZ compressed source tarball Source release 22.5 MB .sigstore SPDX 19a31b2838db3b53f9f2db8782bf8773 Android embeddable package (aarch64) Android 20.0 MB .sigstore 9a36b6558b8bb83e3cde3f5b3d2edac1 Android embeddable package (x86_64) Android 20.3 MB .sigstore ba2bf4cb69fddf3e4ba02d17ea07534c macOS installer macOS for macOS 10.15 and later 71.4 MB .sigstore 730217dd1585c890589273ecc5292050 Windows installer (64-bit) Windows Recommended 28.5 MB .sigstore SPDX c887e19e66e66e6961c444283dafaa33 Windows installer (32-bit) Windows 27.1 MB .sigstore SPDX ae1ef59db6af34ec0e1ff4c6e5e2668a Windows installer (ARM64) Windows Experimental 27.8 MB .sigstore SPDX 30ab0c9e39b339c557c3f325488b869e Windows embeddable package (64-bit) Windows 11.5 MB .sigstore SPDX 85a5dcd0350f7ca4e2876295b0b281e3 Windows embeddable package (32-bit) Windows 10.1 MB .sigstore SPDX 52ecb8b8c850066409d72b2c4976b415 Windows embeddable package (ARM64) Windows 10.8 MB .sigstore SPDX 48100dd20925b213357483c54741d1c9 Windows release manifest Windows Install with 'py install 3.14' 15.1 KB .sigstore cc045b7f2ca3558791877504eb665c9b