| Version | Change log |
| Python 3.14.3 Feb 4, 2026 |
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. 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. |
| Python 3.14.2 Dec 16, 2025 |
A new high-frequency, low-overhead, statistical sampling profiler and dedicated profiling package Python now uses UTF-8 as the default encoding A new PyBytesWriter C API to create a Python bytes object Improved error messages |
| Python 3.14.0 Oct 7, 2025 |
gh-139573: Updated bundled version of OpenSSL to 3.0.18. Tools/Demos: gh-139330: SBOM generation tool didn’t cross-check the version and checksum values against the Modules/expat/refresh.sh script, leading to the values becoming out-of-date during routine updates. gh-132006: XCframeworks now include privacy manifests to satisfy Apple App Store submission requirements. gh-138171: A script for building an iOS XCframework was added. As part of this change, the top level iOS folder has been moved to be a subdirectory of the Apple folder. Security: gh-139400: xml.parsers.expat: Make sure that parent Expat parsers are only garbage-collected once they are no longer referenced by subparsers created by ExternalEntityParserCreate(). Patch by Sebastian Pipping. Library: gh-139312: Upgrade bundled libexpat to 2.7.3 |
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