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Cpython v3.14.4

Cpython: v3.14.4 Release

Release date:
April 7, 2026
Previous version:
v3.14.3 (released February 3, 2026)
Magnitude:
4,603 Diff Delta
Contributors:
18 total committers
Data confidence:
Commits:
151 impacting commits

247 Features Released with v3.14.4

[3.14] gh-145783: Propagate errors raised in `NEW_TYPE_COMMENT` (GH-145784)
#145926
[3.14] gh-143050: Correct PyLong_FromString() to use _PyLong_Negate() (GH-145901)
#147331
[3.14] gh-146092: Fix error handling in _BINARY_OP_ADD_FLOAT opcode
#146119
[3.14] gh-144984: Fix crash in Expat's `ExternalEntityParserCreate` error paths (GH-144992)
#146019
gh-145349: Do not install `ccache`
#145350
[3.14] gh-145883: Fix two heap-buffer-overflows in `_zoneinfo` (GH-145885)
#148087
[3.14] gh-144563: Fix remote debugging with duplicate libpython mappings from ctypes (GH-144595)
#144655
[3.14] gh-146250: Fix memory leak in re-initialization of `SyntaxError` (GH-146251)
#146517
[3.14] gh-145649: Fix man page text wrapping for -X option (GH-145656)
#146015
[3.14] gh-146450: Normalise feature set of Android build script with other platform build scripts (GH-146451)
#148065
[3.14] gh-146416: Emscripten: Improve standard stream handling in node_entry.mjs (GH-146417)
#146630
[3.14] gh-146083: Upgrade bundled Expat to 2.7.5 (GH-146085)
#146603
[3.14] gh-146446: Miscellaneous improvements to iOS XCframework build script (GH-146447)
#146496
[3.14] gh-142516: fix reference leaks in `ssl.SSLContext` objects (GH-143685)
#145075
[3.14] gh-135329: Remove flaky test_repl_eio test (gh-145932)
#146028
[3.14] gh-144503: Pass sys.argv to forkserver as real argv elements (GH-148194)
#148195
[3.14] gh-145986: Avoid unbound C recursion in `conv_content_model` in `pyexpat.c` (CVE 2026-4224) (GH-145987)
#145995
[3.14] gh-146480: Override the exception in _PyErr_SetKeyError() (GH-146486)
#146511
gh-145713: fix: make bytearray.resize thread-safe
#145714
[3.14] GH-91636: Clear weakrefs created by finalizers. (GH-136401)
#144444
[3.14] gh-146613: Fix re-entrant use-after-free in `itertools._grouper` (GH-147962)
#148010
[3.14] gh-142183: Cache one datachunk per tstate to prevent alloc/dealloc thrashing (GH-145789)
#145828
[3.14] gh-146059: Call fast_save_leave() in pickle save_frozenset() (GH-146173)
#146473
[3.14] gh-146080: fix a crash in SNI callbacks when the SSL object is gone (GH-146573)
#146597
[3.14] gh-145176 Move Emscripten files into Platforms/emscripten (GH-145806)
#146043
[3.14] gh-144438: Fix false sharing between QSBR and tlbc_index (gh-144554)
#144923
[3.14] gh-140681: Freeze pre-commit hooks and update zizmor links (GH-140682)
#145536
[3.14] gh-145098: Use `macos-15-intel` instead of unstable `macos-26-intel` in `{jit,tail-call}.yml` (GH-148126)
#148135
[3.14] `compute-changes.py`: Fix & test `process_changed_files()` (GH-144674)
#145013
[3.14] gh-143698: correctly check `scheduler` and `setpgroup` values for `os.posix_spawn[p]` (GH-143699)
#145073

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Top Contributors in v3.14.4

miss-islington
jihugo
serhiy-storchaka
picnixz
StanFromIreland
johnslavik
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colesbury

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