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Cpython v3.14.0a1

Cpython: v3.14.0a1 Release

Release date:
October 15, 2024
Previous version:
v3.13.12 (released February 3, 2026)
Magnitude:
56,175 Diff Delta
Contributors:
49 total committers
Data confidence:
Commits:
1,153 impacting commits

861 Features Released with v3.14.0a1

[3.13] gh-123823: Fix test_posix for unsupported posix_fallocate on NetBSD (GH-123824)
#123864
[3.13] gh-124217, ipaddress: Add RFC 9637 reserved IPv6 block `3fff::/20` (GH-124240)
#124282
[3.13] gh-116181: Remove Py_BUILD_CORE_BUILTIN and Py_BUILD_CORE_MODULE in rotatingtree.c (GH-121260)
#121307
[3.13] gh-124642: Dictionaries aren't marking objects as weakref'd (GH-124643)
#124798
[3.13] gh-121913: Use str(exc) instead of exc.strerror in `asyncio.base_events` (GH-122269)
#122278
[3.13] gh-122571: Remove duplicate definition of PY_BUILTIN_HASHLIB_HASHES in configure.ac (GH-122572)
#122763
[3.13] gh-123448: Move `_PyNoDefault_Type` to the static types array (GH-123449)
#123450
[3.13] Support the "pager" binary in _pyrepl (GH-122878)
#124242
[3.13] gh-118846: Fix free-threading test failures when run sequentially (GH-118864)
#118927
[3.13] CI: Fix using `check_source` flags as bool (GH-121848)
#121853
[3.13] gh-100256: Skip inaccessible registry keys in the WinAPI mimetype implementation (GH-122047)
#122786
[3.13] gh-120221: Support KeyboardInterrupt in asyncio REPL (GH-123795)
#123799
[3.13] gh-120039: Reduce expected timeout in test_siginterrupt_off (GH-120047)
#120060
[3.13] gh-102511: Change the `os.path.splitroot` param name from `path` back to `p` (GH-124097)
#124919
[3.13] gh-121832: Skip subinterpreter static type check on iOS to restore test suite. (GH-122150)
#122159
[3.13] gh-120433: Mention ``chocolatey`` for installing llvm on Windows as an alternative option (GH-120434)
#120651
[3.13] Add a --rerun option to the iOS testbed. (GH-122992)
#122993
[3.13] Enable colour for doctest on GitHub Actions (GH-123536)
#123538
[3.13] gh-121621: Move asyncio_running_loop to private struct (GH-121939)
#121943
[3.13] gh-123229: Fix valgrind warning by initializing the f-string buffers to 0 in the tokenizer (GH-123263)
#123264
[3.13] gh-123228: don't leak file descriptors in pyrepl test (GH-123302)
#123313
[3.13] gh-123418: Update CI to use fresh OpenSSL releases (GH-123675)
#123696
[3.13] Docs: bump Sphinx to 8.0 and update constraints (GH-122496)
#122499
[3.13] gh-121245: Amend d611c4c8e9 (correct import) (GH-121255)
#121261
[3.13] gh-120888: Bump bundled pip to 24.1.1 (GH-120889)
#121080
[3.13] gh-121946: Temporarily switch to llvm-17 in TSan CI (GH-121975)
#121981
gh-122445: populate only modified fields in __static_attributes__
#122446
[3.13] gh-123826: Fix unused function warnings in mimalloc on NetBSD (GH-123827)
#123875
[3.13] Doc: Use the short version for daily downloads (GH-124602)
#124610
[3.13] Pin the doctest workflow to Ubuntu 22.04 (GH-125236)
#125240

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Top Contributors in v3.14.0a1

miss-islington
Yhg1s
lysnikolaou
JelleZijlstra
ericsnowcurrently
serhiy-storchaka
markshannon
cfbolz
ambv
encukou

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