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Cpython v3.13.3

Cpython: v3.13.3 Release

Release date:
April 8, 2025
Previous version:
v3.13.2 (released February 4, 2025)
Magnitude:
4,175 Diff Delta
Contributors:
32 total committers
Data confidence:
Commits:
127 impacting commits

304 Features Released with v3.13.3

[3.13] GH-127953: Make line number lookup O(1) regardless of the size of the code object
#129127
gh-128770: raise warnings as errors in test suite - except for test_socket which still logs warnings, and internal test warnings that are now logged
#128973
gh-118201: Simplify conv_confname
#126089
[3.13] Update manpage environment variables and command line arguments (GH-129623)
#130078
[3.13] gh-128133: use relaxed atomics for hash of bytes (GH-128412)
#130022
GH-121970: Extract ``pydoc_topics`` into a new extension
#129116
[3.13] gh-128714: Fix function object races in `__annotate__`, `__annotations__` and `__type_params__` in free-threading build (GH-129016)
#129729
[3.13] gh-117174: Add a new route in linecache to fetch interactive source code (GH-117500)
#131060
[3.13] gh-128364: Fix flaky `test_concurrent_futures.test_wait` tests (gh-130742)
#130922
gh-129603: Don't segfault if sqlite3.Row description is None
#129604
[3.13] gh-130151: Fix reference leaks in `_hashlib.hmac_{new,digest}` (GH-130152)
#130491
gh-126037: fix UAF in `xml.etree.ElementTree.Element.find*` when concurrent mutations happen
#127964
gh-130959: Reject whitespace in fractions, in pure Python `fromisoformat()`
#130962
[3.13] Convert change detection to a Python script (GH-129627)
#130367
[3.13] gh-129200: Add locking to the iOS testbed startup sequence. (GH-130564)
#130657
[3.13] gh-128308: pass `**kwargs` to asyncio task_factory (GH-128768)
#130084
[3.13] gh-128231: Use `runcode()` return value for failing early (GH-129488)
#130513
gh-128632: fix segfault on nested __classdict__ type param
#128744
[3.13] CI: Use ImageOS (ubuntu24) instead of runner.os (Linux) in cache keys (GH-130200)
#130222
[3.13] gh-130379: Fix incorrect zipapp logic to avoid including the target in itself (gh-130509)
#130791
[3.13] gh-117779: Fix reading duplicated entries in zipfile by name (GH-129254)
#132263
[3.13] gh-131998: Fix `NULL` dereference when using an unbound method descriptor in a specialized code path (GH-132000)
#132262
[3.13] gh-130025: Correct handling of symlinks during iOS testbed framework installation. (GH-130026)
#130073
[3.13] gh-125331: Allow the parser to activate future imports on the fly (GH-125482)
#131062
[3.13] gh-71339: Use new assertion methods in test_import and test_importlib (GH-129052)
#129123
[3.13] gh-129363: Change regrtest sequential mode output (GH-129476)
#130405
[3.13] gh-121970: Replace `.. coroutine{method,function}` with `:async:` (GH-130448)
#130465
[3.13] gh-130115: fix thread identifiers for 32-bit musl (GH-130391)
#132089
[3.13] gh-129726: Break `gzip.GzipFile` reference loop (GH-130055)
#130669
gh-129643: fix thread safety of `PyList_SetItem`
#129644

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Top Contributors in v3.13.3

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