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Cpython v3.14.1

Cpython: v3.14.1 Release

Release date:
December 2, 2025
Previous version:
v3.14.0 (released October 7, 2025)
Magnitude:
1,389 Diff Delta
Contributors:
13 total committers
Data confidence:
Commits:
26 impacting commits

287 Features Released with v3.14.1

[3.14] gh-90949: add Expat API to prevent XML deadly allocations (CVE-2025-59375) (GH-139234)
#139359
[3.14] GH-139914: Handle stack growth direction on HPPA (GH-140028)
#141404
[3.14] gh-140551: Fix dict crash if clear is called at lookup stage (GH-140558)
#140743
[3.14] gh-136912: fix handling of `OverflowError` in `hmac.digest` (GH-136917)
#137116
[3.14] Fix Queue.shutdown docs for condition to unblock a join (gh-137088)
#141073
[3.14] Revert "gh-119452: Fix a potential virtual memory allocation denial of service in http.server (GH-119455)"
#142184
[3.14] Add FFY00 to CODEOWNERS for generate-build-details (GH-139561)
#141080
[3.14] gh-129559: add `bytearray.resize` thread safety test for free-threading (GH-141739)
#141835
[3.14] gh-140593: Fix a memory leak in function `my_ElementDeclHandler` of `pyexpat` (GH-140602)
#140629
[3.14] gh-140513: Fail to compile if _Py_TAIL_CALL_INTERP is set but preserve_none and musttail do not exist (GH-140548)
#140923
gh-138736: Fix `sqlite3.Connection.blobopen` *row* type and naming
#138738
[3.14] gh-139905: Provide suggestion in error message if `Generic.__init_subclass__` was not called (GH-139943)
#139955
[3.14] gh-96491: Deduplicate version in IDLE shell title (GH-139841)
#139931
[3.14] gh-139894: fix incorrect sharing of current task while forking in `asyncio` (GH-139897)
#139913
[3.14] gh-101100: Document `zlib` public constants to fix reference warnings (GH-139835)
#139910
[3.14] gh-139823: Extend list of optional dependencies in `configure.rst` (GH-139826)
#139887
[3.14] gh-102431: Clarify constraints on operands of Decimal logical operations (GH-102836)
#140105
[3.14] gh-101100: Fix sphinx warnings in `library/smtplib.rst` (GH-139991)
#140084
[3.14] gh-125996: fix thread safety of `collections.OrderedDict` (GH-133734)
#140053
[3.14] gh-114827: clarify `threading.Event.wait` timeout behavior (GH-114834)
#140100
[3.14] gh-82575: Adjust `time.get_clock_info` *adjustable* attribute doc (GH-135920)
#140097
[3.14] gh-70765: Remove unnecessary extra backtick from Changelog entry (GH-140071)
#140102
[3.14] gh-97914: Reword misleading sentence on conditional expressions (GH-139064)
#140093
[3.14] gh-139590: Stricter `ruff` rules for `Tools/wasm` (GH-139752)
#139811
[3.14] GH-140058: Clear key and value if `PyTuple_New` fails in `dictiter_iternextitem` (GH-140059)
#140107
[3.14] Using Python on Windows: Free-threaded is supported from 3.14 (GH-139992)
#140045
[3.14] gh-106318: Add examples for str.istitle() (GH-140046)
#140113
[3.14] gh-137871: Clarify cmath.nan documentation by linking to math module (GH-137876)
#140095
[3.14] gh-138072: Fix typos and grammatical errors and improve clarity in asyncio howto document (GH-138895)
#140091
[3.14] gh-139843: Document `signal.SIGQUIT` to fix Sphinx references (GH-139844)
#139885

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Top Contributors in v3.14.1

picnixz
efimov-mikhail
StanFromIreland
stefanor
jihugo
sergey-miryanov
cmaloney
hartwork
chris-eibl
brianschubert

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