mirror of
https://github.com/python/cpython.git
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Hugo van Kemenade
352 lines
7.8 KiB
ReStructuredText
352 lines
7.8 KiB
ReStructuredText
.. date: 2025-12-17-02-02-57
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.. gh-issue: 142836
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.. nonce: mR-fvK
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.. release date: 2026-01-13
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.. section: Tests
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Accommodated Solaris in ``test_pdb.test_script_target_anonymous_pipe``.
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..
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.. date: 2025-12-22-22-36-21
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.. gh-issue: 122431
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.. nonce: 9E3085
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.. section: Library
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Corrected the error message in :func:`readline.append_history_file` to state
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that ``nelements`` must be non-negative instead of positive.
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..
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.. date: 2025-12-21-17-44-28
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.. gh-issue: 143046
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.. nonce: GBa5Ip
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.. section: Library
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The :mod:`asyncio` REPL no longer prints copyright and version messages in
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the quiet mode (:option:`-q`). Patch by Bartosz Sławecki.
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..
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.. date: 2025-12-20-16-35-42
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.. gh-issue: 80744
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.. nonce: X4pZ2N
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.. section: Library
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Fix issue where ``pdb`` would read a ``.pdbrc`` twice if launched from the
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home directory
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..
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.. date: 2025-12-20-02-33-05
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.. gh-issue: 138122
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.. nonce: m3EF9E
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.. section: Library
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Add blocking mode to Tachyon for accurate stack traces in applications with
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many generators or fast-changing call stacks. Patch by Pablo Galindo.
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..
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.. date: 2025-12-20-01-49-02
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.. gh-issue: 143010
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.. nonce: _-SWX0
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.. section: Library
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Fixed a bug in :mod:`mailbox` where the precise timing of an external event
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could result in the library opening an existing file instead of a file it
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expected to create.
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..
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.. date: 2025-12-17-14-41-09
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.. gh-issue: 112127
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.. nonce: 13OHQk
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.. section: Library
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Fix possible use-after-free in :func:`atexit.unregister` when the callback
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is unregistered during comparison.
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..
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.. date: 2025-12-17-03-03-12
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.. gh-issue: 138122
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.. nonce: m3EF9E
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.. section: Library
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Fix incomplete stack traces in the Tachyon profiler's frame cache when
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profiling code with deeply nested generators. The frame cache now validates
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that stack traces reach the base frame before caching, preventing broken
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flamegraphs. Patch by Pablo Galindo.
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..
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.. date: 2025-12-16-15-32-41
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.. gh-issue: 142834
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.. nonce: g7mHw_
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.. section: Library
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Change the :mod:`pdb` ``commands`` command to use the last available
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breakpoint instead of failing when the most recently created breakpoint was
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deleted.
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..
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.. date: 2025-12-16-14-49-19
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.. gh-issue: 142783
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.. nonce: VPV1ig
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.. section: Library
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Fix zoneinfo use-after-free with descriptor _weak_cache. a descriptor as
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_weak_cache could cause crashes during object creation. The fix ensures
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proper reference counting for descriptor-provided objects.
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..
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.. date: 2025-12-16-14-21-20
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.. gh-issue: 76007
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.. nonce: O4AmYl
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.. section: Library
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Deprecate ``VERSION`` from :mod:`xml.etree.ElementTree` and ``version`` from
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:mod:`!xml.sax.expatreader` and :mod:`xml.sax.handler`. Patch by Hugo van
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Kemenade.
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..
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.. date: 2025-12-16-04-39-27
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.. gh-issue: 142784
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.. nonce: HBGJag
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.. section: Library
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The :mod:`asyncio` REPL now properly closes the loop upon the end of
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interactive session. Previously, it could cause surprising warnings.
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Contributed by Bartosz Sławecki.
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..
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.. date: 2025-12-15-02-00-31
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.. gh-issue: 138122
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.. nonce: m3EF9E
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.. section: Library
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Add binary output format to :mod:`profiling.sampling` for compact storage of
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profiling data. The new ``--binary`` option captures samples to a file that
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can be converted to other formats using the ``replay`` command. Patch by
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Pablo Galindo
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..
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.. date: 2025-12-13-23-26-42
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.. gh-issue: 142495
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.. nonce: I88Uv_
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.. section: Library
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:class:`collections.defaultdict` now prioritizes :meth:`~object.__setitem__`
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when inserting default values from ``default_factory``. This prevents race
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conditions where a default value would overwrite a value set before
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``default_factory`` returns.
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..
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.. date: 2025-12-13-10-34-59
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.. gh-issue: 142654
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.. nonce: fmm974
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.. section: Library
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Show the clearer error message when using ``profiling.sampling`` on an
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unknown PID.
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..
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.. date: 2025-12-11-22-59-33
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.. gh-issue: 142560
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.. nonce: GkJrkk
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.. section: Library
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Fix use-after-free in :class:`bytearray` search-like methods
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(:meth:`~bytearray.find`, :meth:`~bytearray.count`,
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:meth:`~bytearray.index`, :meth:`~bytearray.rindex`, and
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:meth:`~bytearray.rfind`) by marking the storage as exported which causes
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reallocation attempts to raise :exc:`BufferError`. For
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:func:`~operator.contains`, :meth:`~bytearray.split`, and
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:meth:`~bytearray.rsplit` the :ref:`buffer protocol <bufferobjects>` is used
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for this.
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..
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.. date: 2025-12-10-02-31-43
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.. gh-issue: 142419
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.. nonce: C8_LES
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.. section: Library
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:meth:`mmap.mmap.set_name` method added to annotate an anonymous memory map
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if Linux kernel supports ``PR_SET_VMA_ANON_NAME`` (Linux 5.17 or newer).
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Patch by Donghee Na.
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..
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.. date: 2025-10-12-12-05-52
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.. gh-issue: 139971
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.. nonce: UdoStU
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.. section: Library
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:mod:`pydoc`: Ensure that the link to the online documentation of a
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:term:`stdlib` module is correct.
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..
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.. date: 2025-07-20-15-39-54
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.. gh-issue: 124098
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.. nonce: znFPIp
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.. section: Library
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Fix issue where methods in handlers that lacked the protocol name but
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matched a valid base handler method (e.g., ``_open()`` or ``error()``) were
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incorrectly added to :class:`urllib.request.OpenerDirector`'s handlers.
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Contributed by Andrea Mattei.
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..
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.. date: 2025-07-05-08-30-07
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.. gh-issue: 136282
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.. nonce: K3JKyD
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.. section: Library
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Add support for :const:`~configparser.UNNAMED_SECTION` when creating a
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section via the mapping protocol access
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..
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.. date: 2025-12-22-12-03-09
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.. gh-issue: 143057
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.. nonce: Majsre
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.. section: Core and Builtins
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Avoid locking in :c:func:`PyTraceMalloc_Track` and
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:c:func:`PyTraceMalloc_Untrack` when :mod:`tracemalloc` is not enabled.
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..
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.. date: 2025-12-21-00-25-26
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.. gh-issue: 139109
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.. nonce: gwSsOL
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.. section: Core and Builtins
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Add missing terminator in certain cases when tracing in the new JIT
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compiler.
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..
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.. date: 2025-12-19-00-59-29
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.. gh-issue: 142961
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.. nonce: q8WRSq
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.. section: Core and Builtins
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Fix a segfault in the JIT when constant folding ``len(tuple)``.
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..
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.. date: 2025-12-18-01-00-14
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.. gh-issue: 142776
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.. nonce: ACaoeP
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.. section: Core and Builtins
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Fix a file descriptor leak in import.c
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..
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.. date: 2025-12-17-20-31-09
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.. gh-issue: 139757
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.. nonce: 6DWxeQ
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.. section: Core and Builtins
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Fix building JIT stencils on free-threaded builds.
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..
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.. date: 2025-12-17-10-49-03
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.. gh-issue: 129068
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.. nonce: GlYnrO
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.. section: Core and Builtins
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Make concurrent iteration over the same range iterator thread-safe in the
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free threading build.
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..
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.. date: 2025-12-16-23-26-41
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.. gh-issue: 142543
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.. nonce: wJKjBs
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.. section: Core and Builtins
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Fix a stack overflow on Clang JIT build configurations with full LTO.
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..
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.. date: 2025-12-16-20-38-17
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.. gh-issue: 142448
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.. nonce: mAFqwL
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.. section: Core and Builtins
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Fix a bug when using monitoring with the JIT.
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..
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.. date: 2025-12-16-11-56-20
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.. gh-issue: 142766
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.. nonce: Uy2HTm
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.. section: Core and Builtins
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Clear the frame of a generator when :meth:`generator.close` is called.
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..
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.. date: 2025-12-16-05-52-37
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.. gh-issue: 134584
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.. nonce: VsfOQR
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.. section: Core and Builtins
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Eliminate redundant refcounting from ``_LOAD_ATTR_INSTANCE_VALUE``.
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..
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.. date: 2025-12-16-05-24-24
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.. gh-issue: 134584
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.. nonce: tJ1usH
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.. section: Core and Builtins
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Eliminate redundant refcounting from ``_STORE_ATTR_WITH_HINT``.
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..
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.. date: 2025-12-13-01-11-03
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.. gh-issue: 142476
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.. nonce: 44Sp4N
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.. section: Core and Builtins
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Fix a memory leak in the experimental Tier 2 optimizer when creating
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executors. Patched by Shamil Abdulaev.
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..
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.. date: 2025-11-06-05-21-25
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.. gh-issue: 100964
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.. nonce: TxPf1b
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.. section: Core and Builtins
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Fix reference cycle in exhausted generator frames. Patch by Savannah
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Ostrowski.
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..
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.. date: 2025-10-11-17-01-21
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.. gh-issue: 139922
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.. nonce: RUkXyd
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.. section: Core and Builtins
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Allow building CPython with the tail calling interpreter on Visual Studio
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2026 MSVC. This provides a performance gain over the prior interpreter for
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MSVC. Patch by Ken Jin, Brandt Bucher, and Chris Eibl. With help from the
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MSVC team including Hulon Jenkins.
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