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Cpython v3.14.0

Cpython: v3.14.0 Release

Release date:
October 7, 2025
Previous version:
v3.14.0rc3 (released September 18, 2025)
Magnitude:
190 Diff Delta
Contributors:
3 total committers
Data confidence:
Commits:
3 impacting commits

48 Features Released with v3.14.0

[3.14] GH-123299: Copyedit 3.14 What's New: CPython bytecode changes (GH-139402)
#139420
[3.14] gh-139146: Check `calloc()` results in `_testembed.c::test_pre_initialization_sys_options` (GH-139147)
#139413
[3.14] Make Android streams respect the unbuffered (`-u`) option (GH-138806)
#139108
[3.14] gh-136744: Remove unnecessary chmod from pydoc.apropos() test. (GH-136746)
#139242
[3.14] gh-135447: Document the ``NOT_TAKEN`` & ``POP_ITER`` bytecode instructions (GH-135803)
#139399
[3.14] gh-138092: Correct the documented signature of ``mmap.flush`` (GH-138671)
#139202
[3.14] `Doc/library/os.rst`: Remove spurious parenthesis (GH-139205)
#139217
[3.14] GH-123299: Announce final release in What's New in Python 3.14 (GH-139631)
#139685
[3.14] gh-124111: Update macOS installer to use Tcl/Tk 8.6.17. (GH-139682)
#139683
[3.14] gh-139573: Update macOS installer to use OpenSSL 3.0.18 (GH-139575)
#139680
[3.14] Add warnings filter suggestions to PEP 765 entry in What's New (GH-139658)
#139676
[3.14] gh-116488: Mention `dict.get` in the data structures tutorial (GH-139643)
#139655
[3.14] gh-139400: Move NEWS item from section "Core and Builtins" to section "Security" (GH-139606)
#139663
[3.14] GH-123299: Copyedit 3.14 What's New: Trivia (GH-139618)
#139626
[3.14] gh-137242: Allow Android testbed to take all Python command-line options (GH-138805)
#139637
[3.14] GH-123299: Copyedit 3.14 What's New: New Features (GH-139543)
#139615
[3.14] gh-139400: Make sure that parent parsers outlive their subparsers in `pyexpat` (GH-139403)
#139606
[3.14] Link to 3.14 GC design docs
#139387

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Top Contributors in v3.14.0

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