Misc/NEWS.d/3.13.0b3.rst - platform/external/python/cpython3 - Git at Google

 .. date: 2024-06-26-14-09-31
 .. gh-issue: 120838
 .. nonce: nFeTL9
 .. release date: 2024-06-27
 .. section: Core and Builtins

 :c:func:`Py_Finalize()` and :c:func:`Py_FinalizeEx()` now always run with
 the main interpreter active.

 ..

 .. date: 2024-06-26-13-42-36
 .. gh-issue: 113433
 .. nonce: xKAtLB
 .. section: Core and Builtins

 Subinterpreters now get cleaned up automatically during runtime
 finalization.

 ..

 .. date: 2024-06-19-11-10-50
 .. gh-issue: 119462
 .. nonce: DpcqSe
 .. section: Core and Builtins

 Make sure that invariants of type versioning are maintained: * Superclasses
 always have their version number assigned before subclasses * The version
 tag is always zero if the tag is not valid. * The version tag is always
 non-zero if the tag is valid.

 ..

 .. date: 2024-06-19-01-58-54
 .. gh-issue: 120437
 .. nonce: nCkIoI
 .. section: Core and Builtins

 Fix ``_CHECK_STACK_SPACE`` optimization problems introduced in :gh:`118322`.

 ..

 .. date: 2024-06-18-22-41-05
 .. gh-issue: 120722
 .. nonce: rS7tkE
 .. section: Core and Builtins

 Correctly set the bytecode position on return instructions within lambdas.
 Patch by Jelle Zijlstra.

 ..

 .. date: 2024-06-18-21-34-30
 .. gh-issue: 120367
 .. nonce: zDwffP
 .. section: Core and Builtins

 Fix bug where compiler creates a redundant jump during pseudo-op
 replacement. Can only happen with a synthetic AST that has a try on the same
 line as the instruction following the exception handler.

 ..

 .. date: 2024-06-14-22-02-25
 .. gh-issue: 113993
 .. nonce: MiA0vX
 .. section: Core and Builtins

 Strings interned with :func:`sys.intern` are again garbage-collected when no
 longer used, as per the documentation. Strings interned with the C function
 :c:func:`PyUnicode_InternInPlace` are still immortal. Internals of the
 string interning mechanism have been changed. This may affect performance
 and identities of :class:`str` objects.

 ..

 .. date: 2024-06-13-12-17-52
 .. gh-issue: 120384
 .. nonce: w1UBGl
 .. section: Core and Builtins

 Fix an array out of bounds crash in ``list_ass_subscript``, which could be
 invoked via some specificly tailored input: including concurrent
 modification of a list object, where one thread assigns a slice and another
 clears it.

 ..

 .. date: 2024-06-12-18-50-29
 .. gh-issue: 120367
 .. nonce: LmXx2y
 .. section: Core and Builtins

 Fix crash in compiler on code with redundant NOPs and JUMPs which show up
 after exception handlers are moved to the end of the code.

 ..

 .. date: 2024-06-12-18-23-15
 .. gh-issue: 120380
 .. nonce: edtqjq
 .. section: Core and Builtins

 Fix Python implementation of :class:`pickle.Pickler` for :class:`bytes` and
 :class:`bytearray` objects when using protocol version 5. Patch by Bénédikt
 Tran.

 ..

 .. date: 2024-06-12-12-29-45
 .. gh-issue: 120400
 .. nonce: lZYHVS
 .. section: Core and Builtins

 Support Linux perf profiler to see Python calls on RISC-V architecture.

 ..

 .. date: 2024-06-11-17-56-12
 .. gh-issue: 120221
 .. nonce: si9hM9
 .. section: Core and Builtins

 Deliver real signals on Ctrl-C and Ctrl-Z in the new REPL. Patch by Pablo
 Galindo

 ..

 .. date: 2024-06-11-12-47-54
 .. gh-issue: 120346
 .. nonce: hhn_6X
 .. section: Core and Builtins

 Respect :envvar:`PYTHON_BASIC_REPL` when running in interative inspect mode
 (``python -i``). Patch by Pablo Galindo

 ..

 .. date: 2024-06-10-22-30-26
 .. gh-issue: 93691
 .. nonce: 68WOTS
 .. section: Core and Builtins

 Fix source locations of instructions generated for the iterator of a for
 statement.

 ..

 .. date: 2024-06-10-15-07-16
 .. gh-issue: 120198
 .. nonce: WW_pjO
 .. section: Core and Builtins

 Fix a crash when multiple threads read and write to the same ``__class__``
 of an object concurrently.

 ..

 .. date: 2024-06-10-10-42-48
 .. gh-issue: 120298
 .. nonce: napREA
 .. section: Core and Builtins

 Fix use-after free in ``list_richcompare_impl`` which can be invoked via
 some specificly tailored evil input.

 ..

 .. date: 2024-06-09-19-13-38
 .. gh-issue: 119666
 .. nonce: S0G4rZ
 .. section: Core and Builtins

 Fix a compiler crash in the case where two comprehensions in class scope
 both reference ``__class__``.

 ..

 .. date: 2024-06-07-16-09-04
 .. gh-issue: 120225
 .. nonce: kuYf9t
 .. section: Core and Builtins

 Fix crash in compiler on empty block at end of exception handler.

 ..

 .. date: 2024-06-03-13-48-44
 .. gh-issue: 119933
 .. nonce: Kc0HG5
 .. section: Core and Builtins

 Improve :exc:`SyntaxError` messages for invalid expressions in a type
 parameters bound, a type parameter constraint tuple or a default type
 parameter. Patch by Bénédikt Tran.

 ..

 .. bpo: 24766
 .. date: 2018-10-09-15-14-53
 .. nonce: c_C1Wc
 .. section: Core and Builtins

 Fix handling of ``doc`` argument to subclasses of ``property``.

 ..

 .. date: 2024-06-27-13-47-14
 .. gh-issue: 121027
 .. nonce: jh55EC
 .. section: Library

 Add a future warning in :meth:`!functools.partial.__get__`. In future Python
 versions :class:`functools.partial` will be a method descriptor.

 ..

 .. date: 2024-06-26-10-13-40
 .. gh-issue: 121025
 .. nonce: M-XXlV
 .. section: Library

 Improve the :meth:`~object.__repr__` of :class:`functools.partialmethod`.
 Patch by Bénédikt Tran.

 ..

 .. date: 2024-06-26-03-04-24
 .. gh-issue: 121018
 .. nonce: clVSc4
 .. section: Library

 Fixed an issue where :meth:`!argparse.ArgumentParser.parses_args` did not
 honor ``exit_on_error=False`` when given unrecognized arguments. Patch by
 Ben Hsing.

 ..

 .. date: 2024-06-23-17-50-40
 .. gh-issue: 119614
 .. nonce: vwPGLB
 .. section: Library

 Fix truncation of strings with embedded null characters in some internal
 operations in :mod:`tkinter`.

 ..

 .. date: 2024-06-23-11-21-27
 .. gh-issue: 120910
 .. nonce: t0QXdB
 .. section: Library

 When reading installed files from an egg, use ``relative_to(walk_up=True)``
 to honor files installed outside of the installation root.

 ..

 .. date: 2024-06-22-22-52-24
 .. gh-issue: 120888
 .. nonce: sd8I3N
 .. section: Library

 Upgrade pip wheel bundled with ensurepip (pip 24.1.1)

 ..

 .. date: 2024-06-22-22-23-56
 .. gh-issue: 101830
 .. nonce: 1BAoxH
 .. section: Library

 Accessing the :mod:`tkinter` object's string representation no longer
 converts the underlying Tcl object to a string on Windows.

 ..

 .. date: 2024-06-21-14-32-56
 .. gh-issue: 120811
 .. nonce: eBmVTV
 .. section: Library

 Fix possible memory leak in :meth:`contextvars.Context.run`.

 ..

 .. date: 2024-06-20-01-31-24
 .. gh-issue: 120769
 .. nonce: PfiMrc
 .. section: Library

 Make empty line in :mod:`pdb` repeats the last command even when the command
 is from ``cmdqueue``.

 ..

 .. date: 2024-06-19-15-06-58
 .. gh-issue: 120732
 .. nonce: OvYV9b
 .. section: Library

 Fix ``name`` passing to :class:`unittest.mock.Mock` object when using
 :func:`unittest.mock.create_autospec`.

 ..

 .. date: 2024-06-18-19-18-10
 .. gh-issue: 120683
 .. nonce: xmRez7
 .. section: Library

 Fix an error in :class:`logging.LogRecord`, when the integer part of the
 timestamp is rounded up, while the millisecond calculation truncates,
 causing the log timestamp to be wrong by up to 999 ms (affected roughly 1 in
 8 million timestamps).

 ..

 .. date: 2024-06-17-20-04-13
 .. gh-issue: 120633
 .. nonce: kZC5wt
 .. section: Library

 Move scrollbar and remove tear-off menus in turtledemo.

 ..

 .. date: 2024-06-15-12-04-46
 .. gh-issue: 120541
 .. nonce: d3cc5y
 .. section: Library

 Improve the prompt in the "less" pager when :func:`help` is called with
 non-string argument.

 ..

 .. date: 2024-06-14-20-05-25
 .. gh-issue: 120495
 .. nonce: OxgZKB
 .. section: Library

 Fix incorrect exception handling in Tab Nanny. Patch by Wulian233.

 ..

 .. date: 2024-06-12-11-54-05
 .. gh-issue: 120381
 .. nonce: O-BNLs
 .. section: Library

 Correct :func:`inspect.ismethoddescriptor` to check also for the lack of
 :meth:`~object.__delete__`.  Patch by Jan Kaliszewski.

 ..

 .. date: 2024-06-12-10-00-31
 .. gh-issue: 90425
 .. nonce: 5CfkKG
 .. section: Library

 The OS byte in gzip headers is now always set to 255 when using
 :func:`gzip.compress`.

 ..

 .. date: 2024-06-11-16-34-41
 .. gh-issue: 120343
 .. nonce: hdiXeU
 .. section: Library

 Fix column offset reporting for tokens that come after multiline f-strings
 in the :mod:`tokenize` module.

 ..

 .. date: 2024-06-10-14-00-40
 .. gh-issue: 119600
 .. nonce: jJMf4C
 .. section: Library

 Fix :func:`unittest.mock.patch` to not read attributes of the target when
 ``new_callable`` is set. Patch by Robert Collins.

 ..

 .. date: 2024-06-08-15-46-35
 .. gh-issue: 114053
 .. nonce: Ub2XgJ
 .. section: Library

 Fix edge-case bug where :func:`typing.get_type_hints` would produce
 incorrect results if type parameters in a class scope were overridden by
 assignments in a class scope and ``from __future__ import annotations``
 semantics were enabled. Patch by Alex Waygood.

 ..

 .. date: 2024-06-08-15-15-29
 .. gh-issue: 114053
 .. nonce: WQLAFG
 .. section: Library

 Fix erroneous :exc:`NameError` when calling :func:`inspect.get_annotations`
 with ``eval_str=True``` on a class that made use of :pep:`695` type
 parameters in a module that had ``from __future__ import annotations`` at
 the top of the file. Patch by Alex Waygood.

 ..

 .. date: 2024-06-08-14-36-40
 .. gh-issue: 120268
 .. nonce: MNpd1q
 .. section: Library

 Prohibit passing ``None`` to pure-Python :meth:`datetime.date.fromtimestamp`
 to achieve consistency with C-extension implementation.

 ..

 .. date: 2024-06-08-09-45-31
 .. gh-issue: 120244
 .. nonce: 8o9Dzr
 .. section: Library

 Fix memory leak in :func:`re.sub` when the replacement string contains
 backreferences.

 ..

 .. date: 2024-06-07-13-21-11
 .. gh-issue: 120211
 .. nonce: Rws_gf
 .. section: Library

 Fix :mod:`tkinter.ttk` with Tcl/Tk 9.0.

 ..

 .. date: 2024-06-07-11-23-31
 .. gh-issue: 71587
 .. nonce: IjFajE
 .. section: Library

 Fix crash in C version of :meth:`datetime.datetime.strptime` when called
 again on the restarted interpreter.

 ..

 .. date: 2024-06-06-17-24-43
 .. gh-issue: 120161
 .. nonce: DahNXV
 .. section: Library

 :mod:`datetime` no longer crashes in certain complex reference cycle
 situations.

 ..

 .. date: 2024-06-06-12-07-57
 .. gh-issue: 119698
 .. nonce: rRrprk
 .. section: Library

 Fix :meth:`symtable.Class.get_methods` and document its behaviour. Patch by
 Bénédikt Tran.

 ..

 .. date: 2024-06-05-16-30-28
 .. gh-issue: 120121
 .. nonce: 9dz8i7
 .. section: Library

 Add :exc:`concurrent.futures.InvalidStateError` to module's ``__all__``.

 ..

 .. date: 2024-06-05-11-39-21
 .. gh-issue: 119933
 .. nonce: ooJXQV
 .. section: Library

 Add the :class:`symtable.SymbolTableType` enumeration to represent the
 possible outputs of the :class:`symtable.SymbolTable.get_type` method. Patch
 by Bénédikt Tran.

 ..

 .. date: 2024-06-05-08-02-46
 .. gh-issue: 120108
 .. nonce: 4U9BL8
 .. section: Library

 Fix calling :func:`copy.deepcopy` on :mod:`ast` trees that have been
 modified to have references to parent nodes. Patch by Jelle Zijlstra.

 ..

 .. date: 2024-06-04-19-03-25
 .. gh-issue: 112672
 .. nonce: K2XfZH
 .. section: Library

 Support building :mod:`tkinter` with Tcl 9.0.

 ..

 .. date: 2024-06-04-08-57-02
 .. gh-issue: 65454
 .. nonce: o9j4wF
 .. section: Library

 :func:`unittest.mock.Mock.attach_mock` no longer triggers a call to a
 ``PropertyMock`` being attached.

 ..

 .. date: 2024-06-02-13-35-11
 .. gh-issue: 81936
 .. nonce: ETeW9x
 .. section: Library

 :meth:`!help` and :meth:`!showtopic` methods now respect a configured
 *output* argument to :class:`!pydoc.Helper` and not use the pager in such
 cases. Patch by Enrico Tröger.

 ..

 .. date: 2024-05-29-21-50-05
 .. gh-issue: 119577
 .. nonce: S3BlKJ
 .. section: Library

 The :exc:`DeprecationWarning` emitted when testing the truth value of an
 :class:`xml.etree.ElementTree.Element` now describes unconditionally
 returning ``True`` in a future version rather than raising an exception in
 Python 3.14.

 ..

 .. date: 2024-05-25-10-40-38
 .. gh-issue: 118908
 .. nonce: XcZiq4
 .. section: Library

 Limit exposed globals from internal imports and definitions on new REPL
 startup. Patch by Eugene Triguba and Pablo Galindo.

 ..

 .. date: 2024-05-24-14-32-24
 .. gh-issue: 119506
 .. nonce: -nMNqq
 .. section: Library

 Fix :meth:`!io.TextIOWrapper.write` method breaks internal buffer when the
 method is called again during flushing internal buffer.

 ..

 .. date: 2024-06-21-09-24-03
 .. gh-issue: 120671
 .. nonce: Z8sBQB
 .. section: Build

 Fix failing configure tests due to a missing space when appending to CFLAGS.

 ..

 .. date: 2024-06-19-21-05-15
 .. gh-issue: 120602
 .. nonce: UyDARz
 .. section: Build

 Correctly handle LLVM installs with ``LLVM_VERSION_SUFFIX`` when building
 with ``--enable-experimental-jit``.

 ..

 .. date: 2024-06-11-00-38-05
 .. gh-issue: 120326
 .. nonce: JHSDF1
 .. section: Build

 On Windows, fix build error when ``--disable-gil`` and
 ``--experimental-jit`` options are combined.

 ..

 .. date: 2024-06-09-15-54-22
 .. gh-issue: 120291
 .. nonce: IpfHzE
 .. section: Build

 Make the ``python-config`` shell script compatible with non-bash shells.

 ..

 .. date: 2024-06-26-11-29-01
 .. gh-issue: 120642
 .. nonce: H7P9qK
 .. section: C API

 Remove the private ``_Py_CODEUNIT`` type from the public C API. The internal
 ``pycore_code.h`` header should now be used to get this internal type. Patch
 by Victor Stinner.

 ..

 .. date: 2024-06-21-16-41-21
 .. gh-issue: 120858
 .. nonce: Z5_-Mn
 .. section: C API

 :c:func:`PyDict_Next` no longer locks the dictionary in the free-threaded
 build.  The locking needs to be done by the caller around the entire
 iteration loop.

 ..

 .. date: 2024-06-19-21-27-42
 .. gh-issue: 120642
 .. nonce: UlKClN
 .. section: C API

 Remove the following unstable functions:

 * ``PyUnstable_Replace_Executor()``
 * ``PyUnstable_SetOptimizer()``
 * ``PyUnstable_GetOptimizer()``
 * ``PyUnstable_GetExecutor()``
 * ``PyUnstable_Optimizer_NewCounter()``
 * ``PyUnstable_Optimizer_NewUOpOptimizer()``

 Patch by Victor Stinner.

 ..

 .. date: 2024-05-21-19-41-41
 .. gh-issue: 119344
 .. nonce: QKvzQb
 .. section: C API

 The critical section API is now public as part of the non-limited C API.

 ..

 .. date: 2024-05-08-21-57-50
 .. gh-issue: 118789
 .. nonce: Ni4UQx
 .. section: C API

 Add :c:func:`PyUnstable_Object_ClearWeakRefsNoCallbacks`, which clears
 weakrefs without calling their callbacks.

 ..

 .. date: 2024-04-10-16-48-04
 .. gh-issue: 117511
 .. nonce: RZtBRK
 .. section: C API

 Make the :c:type:`PyMutex` public in the non-limited C API.
	.. date: 2024-06-26-14-09-31
	.. gh-issue: 120838
	.. nonce: nFeTL9
	.. release date: 2024-06-27
	.. section: Core and Builtins

	:c:func:`Py_Finalize()` and :c:func:`Py_FinalizeEx()` now always run with
	the main interpreter active.

	..

	.. date: 2024-06-26-13-42-36
	.. gh-issue: 113433
	.. nonce: xKAtLB
	.. section: Core and Builtins

	Subinterpreters now get cleaned up automatically during runtime
	finalization.

	..

	.. date: 2024-06-19-11-10-50
	.. gh-issue: 119462
	.. nonce: DpcqSe
	.. section: Core and Builtins

	Make sure that invariants of type versioning are maintained: * Superclasses
	always have their version number assigned before subclasses * The version
	tag is always zero if the tag is not valid. * The version tag is always
	non-zero if the tag is valid.

	..

	.. date: 2024-06-19-01-58-54
	.. gh-issue: 120437
	.. nonce: nCkIoI
	.. section: Core and Builtins

	Fix ``_CHECK_STACK_SPACE`` optimization problems introduced in :gh:`118322`.

	..

	.. date: 2024-06-18-22-41-05
	.. gh-issue: 120722
	.. nonce: rS7tkE
	.. section: Core and Builtins

	Correctly set the bytecode position on return instructions within lambdas.
	Patch by Jelle Zijlstra.

	..

	.. date: 2024-06-18-21-34-30
	.. gh-issue: 120367
	.. nonce: zDwffP
	.. section: Core and Builtins

	Fix bug where compiler creates a redundant jump during pseudo-op
	replacement. Can only happen with a synthetic AST that has a try on the same
	line as the instruction following the exception handler.

	..

	.. date: 2024-06-14-22-02-25
	.. gh-issue: 113993
	.. nonce: MiA0vX
	.. section: Core and Builtins

	Strings interned with :func:`sys.intern` are again garbage-collected when no
	longer used, as per the documentation. Strings interned with the C function
	:c:func:`PyUnicode_InternInPlace` are still immortal. Internals of the
	string interning mechanism have been changed. This may affect performance
	and identities of :class:`str` objects.

	..

	.. date: 2024-06-13-12-17-52
	.. gh-issue: 120384
	.. nonce: w1UBGl
	.. section: Core and Builtins

	Fix an array out of bounds crash in ``list_ass_subscript``, which could be
	invoked via some specificly tailored input: including concurrent
	modification of a list object, where one thread assigns a slice and another
	clears it.

	..

	.. date: 2024-06-12-18-50-29
	.. gh-issue: 120367
	.. nonce: LmXx2y
	.. section: Core and Builtins

	Fix crash in compiler on code with redundant NOPs and JUMPs which show up
	after exception handlers are moved to the end of the code.

	..

	.. date: 2024-06-12-18-23-15
	.. gh-issue: 120380
	.. nonce: edtqjq
	.. section: Core and Builtins

	Fix Python implementation of :class:`pickle.Pickler` for :class:`bytes` and
	:class:`bytearray` objects when using protocol version 5. Patch by Bénédikt
	Tran.

	..

	.. date: 2024-06-12-12-29-45
	.. gh-issue: 120400
	.. nonce: lZYHVS
	.. section: Core and Builtins

	Support Linux perf profiler to see Python calls on RISC-V architecture.

	..

	.. date: 2024-06-11-17-56-12
	.. gh-issue: 120221
	.. nonce: si9hM9
	.. section: Core and Builtins

	Deliver real signals on Ctrl-C and Ctrl-Z in the new REPL. Patch by Pablo
	Galindo

	..

	.. date: 2024-06-11-12-47-54
	.. gh-issue: 120346
	.. nonce: hhn_6X
	.. section: Core and Builtins

	Respect :envvar:`PYTHON_BASIC_REPL` when running in interative inspect mode
	(``python -i``). Patch by Pablo Galindo

	..

	.. date: 2024-06-10-22-30-26
	.. gh-issue: 93691
	.. nonce: 68WOTS
	.. section: Core and Builtins

	Fix source locations of instructions generated for the iterator of a for
	statement.

	..

	.. date: 2024-06-10-15-07-16
	.. gh-issue: 120198
	.. nonce: WW_pjO
	.. section: Core and Builtins

	Fix a crash when multiple threads read and write to the same ``__class__``
	of an object concurrently.

	..

	.. date: 2024-06-10-10-42-48
	.. gh-issue: 120298
	.. nonce: napREA
	.. section: Core and Builtins

	Fix use-after free in ``list_richcompare_impl`` which can be invoked via
	some specificly tailored evil input.

	..

	.. date: 2024-06-09-19-13-38
	.. gh-issue: 119666
	.. nonce: S0G4rZ
	.. section: Core and Builtins

	Fix a compiler crash in the case where two comprehensions in class scope
	both reference ``__class__``.

	..

	.. date: 2024-06-07-16-09-04
	.. gh-issue: 120225
	.. nonce: kuYf9t
	.. section: Core and Builtins

	Fix crash in compiler on empty block at end of exception handler.

	..

	.. date: 2024-06-03-13-48-44
	.. gh-issue: 119933
	.. nonce: Kc0HG5
	.. section: Core and Builtins

	Improve :exc:`SyntaxError` messages for invalid expressions in a type
	parameters bound, a type parameter constraint tuple or a default type
	parameter. Patch by Bénédikt Tran.

	..

	.. bpo: 24766
	.. date: 2018-10-09-15-14-53
	.. nonce: c_C1Wc
	.. section: Core and Builtins

	Fix handling of ``doc`` argument to subclasses of ``property``.

	..

	.. date: 2024-06-27-13-47-14
	.. gh-issue: 121027
	.. nonce: jh55EC
	.. section: Library

	Add a future warning in :meth:`!functools.partial.__get__`. In future Python
	versions :class:`functools.partial` will be a method descriptor.

	..

	.. date: 2024-06-26-10-13-40
	.. gh-issue: 121025
	.. nonce: M-XXlV
	.. section: Library

	Improve the :meth:`~object.__repr__` of :class:`functools.partialmethod`.
	Patch by Bénédikt Tran.

	..

	.. date: 2024-06-26-03-04-24
	.. gh-issue: 121018
	.. nonce: clVSc4
	.. section: Library

	Fixed an issue where :meth:`!argparse.ArgumentParser.parses_args` did not
	honor ``exit_on_error=False`` when given unrecognized arguments. Patch by
	Ben Hsing.

	..

	.. date: 2024-06-23-17-50-40
	.. gh-issue: 119614
	.. nonce: vwPGLB
	.. section: Library

	Fix truncation of strings with embedded null characters in some internal
	operations in :mod:`tkinter`.

	..

	.. date: 2024-06-23-11-21-27
	.. gh-issue: 120910
	.. nonce: t0QXdB
	.. section: Library

	When reading installed files from an egg, use ``relative_to(walk_up=True)``
	to honor files installed outside of the installation root.

	..

	.. date: 2024-06-22-22-52-24
	.. gh-issue: 120888
	.. nonce: sd8I3N
	.. section: Library

	Upgrade pip wheel bundled with ensurepip (pip 24.1.1)

	..

	.. date: 2024-06-22-22-23-56
	.. gh-issue: 101830
	.. nonce: 1BAoxH
	.. section: Library

	Accessing the :mod:`tkinter` object's string representation no longer
	converts the underlying Tcl object to a string on Windows.

	..

	.. date: 2024-06-21-14-32-56
	.. gh-issue: 120811
	.. nonce: eBmVTV
	.. section: Library

	Fix possible memory leak in :meth:`contextvars.Context.run`.

	..

	.. date: 2024-06-20-01-31-24
	.. gh-issue: 120769
	.. nonce: PfiMrc
	.. section: Library

	Make empty line in :mod:`pdb` repeats the last command even when the command
	is from ``cmdqueue``.

	..

	.. date: 2024-06-19-15-06-58
	.. gh-issue: 120732
	.. nonce: OvYV9b
	.. section: Library

	Fix ``name`` passing to :class:`unittest.mock.Mock` object when using
	:func:`unittest.mock.create_autospec`.

	..

	.. date: 2024-06-18-19-18-10
	.. gh-issue: 120683
	.. nonce: xmRez7
	.. section: Library

	Fix an error in :class:`logging.LogRecord`, when the integer part of the
	timestamp is rounded up, while the millisecond calculation truncates,
	causing the log timestamp to be wrong by up to 999 ms (affected roughly 1 in
	8 million timestamps).

	..

	.. date: 2024-06-17-20-04-13
	.. gh-issue: 120633
	.. nonce: kZC5wt
	.. section: Library

	Move scrollbar and remove tear-off menus in turtledemo.

	..

	.. date: 2024-06-15-12-04-46
	.. gh-issue: 120541
	.. nonce: d3cc5y
	.. section: Library

	Improve the prompt in the "less" pager when :func:`help` is called with
	non-string argument.

	..

	.. date: 2024-06-14-20-05-25
	.. gh-issue: 120495
	.. nonce: OxgZKB
	.. section: Library

	Fix incorrect exception handling in Tab Nanny. Patch by Wulian233.

	..

	.. date: 2024-06-12-11-54-05
	.. gh-issue: 120381
	.. nonce: O-BNLs
	.. section: Library

	Correct :func:`inspect.ismethoddescriptor` to check also for the lack of
	:meth:`~object.__delete__`. Patch by Jan Kaliszewski.

	..

	.. date: 2024-06-12-10-00-31
	.. gh-issue: 90425
	.. nonce: 5CfkKG
	.. section: Library

	The OS byte in gzip headers is now always set to 255 when using
	:func:`gzip.compress`.

	..

	.. date: 2024-06-11-16-34-41
	.. gh-issue: 120343
	.. nonce: hdiXeU
	.. section: Library

	Fix column offset reporting for tokens that come after multiline f-strings
	in the :mod:`tokenize` module.

	..

	.. date: 2024-06-10-14-00-40
	.. gh-issue: 119600
	.. nonce: jJMf4C
	.. section: Library

	Fix :func:`unittest.mock.patch` to not read attributes of the target when
	``new_callable`` is set. Patch by Robert Collins.

	..

	.. date: 2024-06-08-15-46-35
	.. gh-issue: 114053
	.. nonce: Ub2XgJ
	.. section: Library

	Fix edge-case bug where :func:`typing.get_type_hints` would produce
	incorrect results if type parameters in a class scope were overridden by
	assignments in a class scope and ``from __future__ import annotations``
	semantics were enabled. Patch by Alex Waygood.

	..

	.. date: 2024-06-08-15-15-29
	.. gh-issue: 114053
	.. nonce: WQLAFG
	.. section: Library

	Fix erroneous :exc:`NameError` when calling :func:`inspect.get_annotations`
	with ``eval_str=True``` on a class that made use of :pep:`695` type
	parameters in a module that had ``from __future__ import annotations`` at
	the top of the file. Patch by Alex Waygood.

	..

	.. date: 2024-06-08-14-36-40
	.. gh-issue: 120268
	.. nonce: MNpd1q
	.. section: Library

	Prohibit passing ``None`` to pure-Python :meth:`datetime.date.fromtimestamp`
	to achieve consistency with C-extension implementation.

	..

	.. date: 2024-06-08-09-45-31
	.. gh-issue: 120244
	.. nonce: 8o9Dzr
	.. section: Library

	Fix memory leak in :func:`re.sub` when the replacement string contains
	backreferences.

	..

	.. date: 2024-06-07-13-21-11
	.. gh-issue: 120211
	.. nonce: Rws_gf
	.. section: Library

	Fix :mod:`tkinter.ttk` with Tcl/Tk 9.0.

	..

	.. date: 2024-06-07-11-23-31
	.. gh-issue: 71587
	.. nonce: IjFajE
	.. section: Library

	Fix crash in C version of :meth:`datetime.datetime.strptime` when called
	again on the restarted interpreter.

	..

	.. date: 2024-06-06-17-24-43
	.. gh-issue: 120161
	.. nonce: DahNXV
	.. section: Library

	:mod:`datetime` no longer crashes in certain complex reference cycle
	situations.

	..

	.. date: 2024-06-06-12-07-57
	.. gh-issue: 119698
	.. nonce: rRrprk
	.. section: Library

	Fix :meth:`symtable.Class.get_methods` and document its behaviour. Patch by
	Bénédikt Tran.

	..

	.. date: 2024-06-05-16-30-28
	.. gh-issue: 120121
	.. nonce: 9dz8i7
	.. section: Library

	Add :exc:`concurrent.futures.InvalidStateError` to module's ``__all__``.

	..

	.. date: 2024-06-05-11-39-21
	.. gh-issue: 119933
	.. nonce: ooJXQV
	.. section: Library

	Add the :class:`symtable.SymbolTableType` enumeration to represent the
	possible outputs of the :class:`symtable.SymbolTable.get_type` method. Patch
	by Bénédikt Tran.

	..

	.. date: 2024-06-05-08-02-46
	.. gh-issue: 120108
	.. nonce: 4U9BL8
	.. section: Library

	Fix calling :func:`copy.deepcopy` on :mod:`ast` trees that have been
	modified to have references to parent nodes. Patch by Jelle Zijlstra.

	..

	.. date: 2024-06-04-19-03-25
	.. gh-issue: 112672
	.. nonce: K2XfZH
	.. section: Library

	Support building :mod:`tkinter` with Tcl 9.0.

	..

	.. date: 2024-06-04-08-57-02
	.. gh-issue: 65454
	.. nonce: o9j4wF
	.. section: Library

	:func:`unittest.mock.Mock.attach_mock` no longer triggers a call to a
	``PropertyMock`` being attached.

	..

	.. date: 2024-06-02-13-35-11
	.. gh-issue: 81936
	.. nonce: ETeW9x
	.. section: Library

	:meth:`!help` and :meth:`!showtopic` methods now respect a configured
	output argument to :class:`!pydoc.Helper` and not use the pager in such
	cases. Patch by Enrico Tröger.

	..

	.. date: 2024-05-29-21-50-05
	.. gh-issue: 119577
	.. nonce: S3BlKJ
	.. section: Library

	The :exc:`DeprecationWarning` emitted when testing the truth value of an
	:class:`xml.etree.ElementTree.Element` now describes unconditionally
	returning ``True`` in a future version rather than raising an exception in
	Python 3.14.

	..

	.. date: 2024-05-25-10-40-38
	.. gh-issue: 118908
	.. nonce: XcZiq4
	.. section: Library

	Limit exposed globals from internal imports and definitions on new REPL
	startup. Patch by Eugene Triguba and Pablo Galindo.

	..

	.. date: 2024-05-24-14-32-24
	.. gh-issue: 119506
	.. nonce: -nMNqq
	.. section: Library

	Fix :meth:`!io.TextIOWrapper.write` method breaks internal buffer when the
	method is called again during flushing internal buffer.

	..

	.. date: 2024-06-21-09-24-03
	.. gh-issue: 120671
	.. nonce: Z8sBQB
	.. section: Build

	Fix failing configure tests due to a missing space when appending to CFLAGS.

	..

	.. date: 2024-06-19-21-05-15
	.. gh-issue: 120602
	.. nonce: UyDARz
	.. section: Build

	Correctly handle LLVM installs with ``LLVM_VERSION_SUFFIX`` when building
	with ``--enable-experimental-jit``.

	..

	.. date: 2024-06-11-00-38-05
	.. gh-issue: 120326
	.. nonce: JHSDF1
	.. section: Build

	On Windows, fix build error when ``--disable-gil`` and
	``--experimental-jit`` options are combined.

	..

	.. date: 2024-06-09-15-54-22
	.. gh-issue: 120291
	.. nonce: IpfHzE
	.. section: Build

	Make the ``python-config`` shell script compatible with non-bash shells.

	..

	.. date: 2024-06-26-11-29-01
	.. gh-issue: 120642
	.. nonce: H7P9qK
	.. section: C API

	Remove the private ``_Py_CODEUNIT`` type from the public C API. The internal
	``pycore_code.h`` header should now be used to get this internal type. Patch
	by Victor Stinner.

	..

	.. date: 2024-06-21-16-41-21
	.. gh-issue: 120858
	.. nonce: Z5_-Mn
	.. section: C API

	:c:func:`PyDict_Next` no longer locks the dictionary in the free-threaded
	build. The locking needs to be done by the caller around the entire
	iteration loop.

	..

	.. date: 2024-06-19-21-27-42
	.. gh-issue: 120642
	.. nonce: UlKClN
	.. section: C API

	Remove the following unstable functions:

	* ``PyUnstable_Replace_Executor()``
	* ``PyUnstable_SetOptimizer()``
	* ``PyUnstable_GetOptimizer()``
	* ``PyUnstable_GetExecutor()``
	* ``PyUnstable_Optimizer_NewCounter()``
	* ``PyUnstable_Optimizer_NewUOpOptimizer()``

	Patch by Victor Stinner.

	..

	.. date: 2024-05-21-19-41-41
	.. gh-issue: 119344
	.. nonce: QKvzQb
	.. section: C API

	The critical section API is now public as part of the non-limited C API.

	..

	.. date: 2024-05-08-21-57-50
	.. gh-issue: 118789
	.. nonce: Ni4UQx
	.. section: C API

	Add :c:func:`PyUnstable_Object_ClearWeakRefsNoCallbacks`, which clears
	weakrefs without calling their callbacks.

	..

	.. date: 2024-04-10-16-48-04
	.. gh-issue: 117511
	.. nonce: RZtBRK
	.. section: C API

	Make the :c:type:`PyMutex` public in the non-limited C API.