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Cpython v3.13.13

Cpython: v3.13.13 Release

Release date:
April 7, 2026
Previous version:
v3.13.12 (released February 3, 2026)
Magnitude:
2,582 Diff Delta
Contributors:
19 total committers
Data confidence:
Commits:
102 impacting commits

142 Features Released with v3.13.13

[3.13] gh-146541: Allow building the Android testbed for 32-bit targets (GH-146542)
#148107
[3.13] Bump mypy to 1.19.1 (GH-145956)
#145972
[3.13] gh-143394: Skip pyrepl test_no_newline() basic REPL if readline is missing (GH-147973)
#148006
[3.13] gh-124613: Deactivate perf support in tests if the jit is set (GH-124794)
#148214
[3.13] gh-146093: Fix csv _set_str(): check if PyUnicode_DecodeASCII() failed (GH-146113)
#146131
[3.13] gh-146092: Handle _PyFrame_GetFrameObject() failures properly (GH-146124) (GH-146132)
#146138
[3.13] gh-145351: use `--no-install-recommends` (GH-145352)
#145402
[3.13] gh-146059: Cleanup pickle fast_save_enter() test (GH-146481)
#146510
[3.13] gh-146090: fix memory management of internal `sqlite3` callback contexts (GH-146569)
#146596
[3.13] Add Savannah as `jit.yml` CODEOWNER (GH-145152)
#145156
[3.13] gh-145616: Detect Android sysconfig ABI correctly on 32-bit ARM Android on 64-bit ARM kernel (GH-145617)
#146539
[3.13] gh-106318: Add examples for str.rjust() method (GH-143890)
#145256
[3.13] `_struct.c`: Fix UB from integer overflow in `prepare_s` (GH-145158)
#145163
[3.13] Move news entry
#145366
[3.13] gh-144694: Fix re.Match.group() doc claiming [1..99] range limit (GH-144696)
#145066
[3.13] Fix typos and grammar errors across documentation (GH-144709)
#144804
[3.13] gh-143637: Fix test_socket.test_sendmsg_reentrant_ancillary_mutation() on Solaris (GH-144890)
#144902
[3.13] gh-144551: Update macOS installer to use OpenSSL 3.0.19 (GH-144897)
#144898
[3.13] gh-144833: Fix use-after-free in SSL module when SSL_new() fails (GH-144843)
#144859
[3.13] gh-101100: Resolve reference warnings in reference/ (GH-138418)
#138681
[3.13] gh-144766: Fix a crash in fork child process when perf support is enabled. (GH-144795)
#144818
[3.13] gh-144787: [tests] Allow TLS v1.2 to be minimum version (GH-144790)
#144792
[3.13] gh-143637: Fix re-entrant mutation of ancillary data in socket.sendmsg() (GH-143892)
#144785
[3.13] gh-142518: Define lock-free and per-object lock (GH-144548)
#144707
[3.13] gh-106318: Improve str.rstrip() method doc (GH-143893)
#144698
[3.13] gh-143650: Fix importlib race condition on import failure (GH-143651)
#144697
[3.13] gh-138744: Skip test_dtrace on Windows (GH-144657)
#144668
[3.13] Clarify the docs for `args` in asyncio callbacks (GH-143873)
#144664
[3.13] Disable pip version check when upgrading certifi (GH-144632)
#144640
[3.13] gh-144492: Fix `process_changed_files` outputs for `reusable-{macos, wasi}.yml` (GH-144518)
#144634

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Top Contributors in v3.13.13

miss-islington
Yhg1s
StanFromIreland
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