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Cpython v3.14.0b4

Cpython: v3.14.0b4 Release

Release date:

July 8, 2025

Previous version:

v3.14.0b3 (released June 17, 2025)

Magnitude:

4,564 Diff Delta

Contributors:

10 total committers

Data confidence:

Commits:

154

154 Commits in this Release

Ordered by the degree to which they evolved the repo in this version.

[3.14] gh-135607: remove null checking of weakref list in dealloc of extension modules and objects (#135614) (#136119)

Authored June 30, 2025

[3.14] gh-132775: Fix Interpreter.call() __main__ Visibility (gh-135638)

Authored June 17, 2025

[3.14] gh-128051: Fix tests if sys.float_repr_style is 'legacy' (GH-135908) (#136025)

Authored June 27, 2025

Python 3.14.0b4

Authored July 8, 2025

[3.14] gh-135557: use atomic stores in `heapq` operations in free-threading (GH-135601) (#135787)

Authored June 21, 2025

[3.14] gh-135376: Fix and improve test_random (GH-135377) (GH-135680)

Authored June 18, 2025

[3.14] GH-135106: Restrict trashcan to GC'ed objects (GH-135682) (#135876)

Authored July 7, 2025

gh-135543: Emit sys.remote_exec audit event when sys.remote_exec is called (GH-135544)

Authored June 19, 2025

[3.14] gh-78465: Fix error message for cls.__new__(cls, ...) where cls is not instantiable (GH-135981) (GH-136030)

Authored June 27, 2025

[3.14] gh-135532: simplify handling of HACL* errors in `_hmac` (GH-135740) (#135743)

Authored June 20, 2025

[3.14] gh-136285: Improve `pickle` protocol testing in `test_interpreters` (GH-136286) (#136333)

Authored July 6, 2025

[3.14] gh-135532: update `Modules/_hacl/python_hacl_namespaces.h` (GH-135741) (#135745)

Authored June 20, 2025

[3.14] GH-133600: Backport file reorg of `Tools/wasm/wasi` (GH-135950)

Authored June 26, 2025

[3.14] gh-135966: Modify iOS testbed to make app_packages a site directory (GH-135967) (#136012)

Authored June 27, 2025

[3.14] gh-135755: rename undocumented `HACL_CAN_COMPILE_SIMD{128,256}` macros (GH-135847) (#136045)

Authored June 28, 2025

[3.14] gh-87790: support thousands separators for formatting fractional part of Decimal (GH-132202) (#136365)

Authored July 7, 2025

[3.14] gh-135608: Add a null check for attribute promotion to fix a JIT crash (GH-135613) (#135739)

Authored June 20, 2025

[3.14] gh-135561: ensure that the GIL is held when handling an HACL* error in `_hmac` (GH-135562) (#135725)

Authored June 19, 2025

[3.14] patchcheck: use URL paths to identify upstream remote (GH-135806) (#135808)

Authored June 23, 2025

[3.14] gh-135494: Fix python -m test --pgo -x test_re (GH-135713) (#135880)

Authored June 24, 2025

[3.14] gh-135698: Fix Cross-interpreter Queue.full() With Negative/Default max_size (gh-135775)

Authored June 20, 2025

[3.14] gh-135836: Fix `IndexError` in `asyncio.create_connection` with empty exceptions list (GH-135845) (#136167)

Authored July 3, 2025

[3.14] gh-135645: Added `supports_isolated_interpreters` to `sys.implementation` (GH-135667) (#135786)

Authored June 21, 2025

[3.14] gh-135878: Fix crash in `types.SimpleNamespace.__repr__` (GH-135889) (#135896)

Authored June 24, 2025

[3.14] gh-87790: support thousands separators for formatting fractional part of Fraction (GH-132204) (#136364)

Authored July 7, 2025

[3.14] gh-135646: Raise consistent `NameError` exceptions in `ForwardRef.evaluate()` (GH-135663) (#135673)

Authored June 18, 2025

[3.14] GH-133932: Tagged ints are heap safe (GH-134244) (#134494)

Authored July 7, 2025

[3.14] gh-130396: Move PYOS_LOG2_STACK_MARGIN to internal headers (GH-135928) (#136173)

Authored July 1, 2025

[3.14] GH-134273: Allow setting JIT compiler flags at build time with CFLAGS_JIT (GH-135792)

Authored July 1, 2025

[3.14] gh-135755: Move `PyFunction_GET_BUILTINS` to the private API (GH-135938) (GH-135972)

Authored June 26, 2025

[3.14] gh-135836: Fix `IndexError` in `asyncio.create_connection()` (GH-135875) (#136221)

Authored July 3, 2025

[3.14] gh-135855: Raise TypeError When Passing Non-dict Object to `_interpreters.set___main___attrs` (gh-135900)

Authored June 24, 2025

[3.14] gh-135773: have pyvenv.cfg without home key anchor a venv and deduce home (GH-135831) (#136287)

Authored July 4, 2025

[3.14] gh-135571: Guard `_hashlib` usage in `test_hashlib.py` (GH-135572) (#136042)

Authored June 28, 2025

[3.14] gh-53203: Fix strptime() for %c, %x and %X formats on some locales (GH-135971) (GH-136019)

Authored June 27, 2025

[3.14] gh-135450: Remove assertion in `_PyCode_CheckNoExternalState` (gh-135694)

Authored June 18, 2025

[3.14] gh-136316: Make typing.evaluate_forward_ref better at evaluating nested forwardrefs (GH-136319) (#136346)

Authored July 7, 2025

[3.14] gh-135709: Fix two compile warnings on WASM buildbot (GH-135712) (#135723)

Authored June 19, 2025

[3.14] gh-127146: Emscripten: Fix pathlib glob_dotdot test (GH-135624) (#135653)

Authored June 18, 2025

[3.14] gh-85702: Catch PermissionError in zoneinfo.load_tzdata() (GH-136117) (#136128)

Authored June 30, 2025

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