--- /dev/null
+.. bpo: 41180
+.. date: 2021-06-29-23-40-22
+.. nonce: uTWHv_
+.. release date: 2021-07-10
+.. section: Security
+
+Add auditing events to the :mod:`marshal` module, and stop raising
+``code.__init__`` events for every unmarshalled code object. Directly
+instantiated code objects will continue to raise an event, and audit event
+handlers should inspect or collect the raw marshal data. This reduces a
+significant performance overhead when loading from ``.pyc`` files.
+
+..
+
+.. bpo: 44562
+.. date: 2021-07-04-23-38-51
+.. nonce: QdeRQo
+.. section: Core and Builtins
+
+Remove uses of :c:func:`PyObject_GC_Del` in error path when initializing
+:class:`types.GenericAlias`.
+
+..
+
+.. bpo: 41486
+.. date: 2021-07-04-17-41-47
+.. nonce: DiM24a
+.. section: Core and Builtins
+
+Fix a memory consumption and copying performance regression in earlier 3.10
+beta releases if someone used an output buffer larger than 4GiB with
+zlib.decompress on input data that expands that large.
+
+..
+
+.. bpo: 44553
+.. date: 2021-07-02-22-54-41
+.. nonce: l9YqGg
+.. section: Core and Builtins
+
+Implement GC methods for ``types.Union`` to break reference cycles and
+prevent memory leaks.
+
+..
+
+.. bpo: 44523
+.. date: 2021-06-29-11-49-29
+.. nonce: 67-ZIP
+.. section: Core and Builtins
+
+Remove the pass-through for :func:`hash` of :class:`weakref.proxy` objects
+to prevent unintended consequences when the original referred object dies
+while the proxy is part of a hashable object. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 44483
+.. date: 2021-06-22-19-08-19
+.. nonce: eq2f7T
+.. section: Core and Builtins
+
+Fix a crash in ``types.Union`` objects when creating a union of an object
+with bad ``__module__`` field.
+
+..
+
+.. bpo: 44297
+.. date: 2021-06-19-12-41-13
+.. nonce: F53vHj
+.. section: Core and Builtins
+
+Make sure that the line number is set when entering a comprehension scope.
+Ensures that backtraces inclusing generator expressions show the correct
+line number.
+
+..
+
+.. bpo: 44456
+.. date: 2021-06-18-22-08-25
+.. nonce: L0Rhko
+.. section: Core and Builtins
+
+Improve the syntax error when mixing positional and keyword patterns. Patch
+by Pablo Galindo.
+
+..
+
+.. bpo: 44368
+.. date: 2021-06-09-22-56-59
+.. nonce: vgT0Cx
+.. section: Core and Builtins
+
+Improve syntax errors for invalid "as" targets. Patch by Pablo Galindo
+
+..
+
+.. bpo: 44317
+.. date: 2021-06-06-00-29-14
+.. nonce: xPPhcZ
+.. section: Core and Builtins
+
+Improve tokenizer error with improved locations. Patch by Pablo Galindo.
+
+..
+
+.. bpo: 43667
+.. date: 2021-05-27-17-34-29
+.. nonce: ND9jP3
+.. section: Core and Builtins
+
+Improve Unicode support in non-UTF locales on Oracle Solaris. This issue
+does not affect other Solaris systems.
+
+..
+
+.. bpo: 44558
+.. date: 2021-07-04-21-16-53
+.. nonce: cm7Slv
+.. section: Library
+
+Make the implementation consistency of :func:`~operator.indexOf` between C
+and Python versions. Patch by Dong-hee Na.
+
+..
+
+.. bpo: 34798
+.. date: 2021-06-30-13-29-49
+.. nonce: t7FCa0
+.. section: Library
+
+Break up paragraph about :class:`pprint.PrettyPrinter` construction
+parameters to make it easier to read.
+
+..
+
+.. bpo: 44516
+.. date: 2021-06-26-12-27-14
+.. nonce: BVyX_y
+.. section: Library
+
+Update vendored pip to 21.1.3
+
+..
+
+.. bpo: 44468
+.. date: 2021-06-23-19-02-00
+.. nonce: -klV5-
+.. section: Library
+
+:func:`typing.get_type_hints` now finds annotations in classes and base
+classes with unexpected ``__module__``. Previously, it skipped those MRO
+elements.
+
+..
+
+.. bpo: 43977
+.. date: 2021-06-22-16-45-48
+.. nonce: bamAGF
+.. section: Library
+
+Set the proper :const:`Py_TPFLAGS_MAPPING` and :const:`Py_TPFLAGS_SEQUENCE`
+flags for subclasses created before a parent has been registered as a
+:class:`collections.abc.Mapping` or :class:`collections.abc.Sequence`.
+
+..
+
+.. bpo: 44482
+.. date: 2021-06-22-08-43-04
+.. nonce: U9GznK
+.. section: Library
+
+Fix very unlikely resource leak in :mod:`glob` in alternate Python
+implementations.
+
+..
+
+.. bpo: 44466
+.. date: 2021-06-21-12-43-04
+.. nonce: NSm6mv
+.. section: Library
+
+The :mod:`faulthandler` module now detects if a fatal error occurs during a
+garbage collector collection. Patch by Victor Stinner.
+
+..
+
+.. bpo: 44404
+.. date: 2021-06-20-19-01-11
+.. nonce: McfrYB
+.. section: Library
+
+:mod:`tkinter`'s ``after()`` method now supports callables without the
+``__name__`` attribute.
+
+..
+
+.. bpo: 44458
+.. date: 2021-06-20-07-14-46
+.. nonce: myqCQ0
+.. section: Library
+
+``BUFFER_BLOCK_SIZE`` is now declared static, to avoid linking collisions
+when bz2, lmza or zlib are statically linked.
+
+..
+
+.. bpo: 44464
+.. date: 2021-06-19-21-52-27
+.. nonce: U2oa-a
+.. section: Library
+
+Remove exception for flake8 in deprecated importlib.metadata interfaces.
+Sync with importlib_metadata 4.6.
+
+..
+
+.. bpo: 44446
+.. date: 2021-06-17-22-39-34
+.. nonce: qwdRic
+.. section: Library
+
+Take into account that ``lineno`` might be ``None`` in
+:class:`traceback.FrameSummary`.
+
+..
+
+.. bpo: 44439
+.. date: 2021-06-17-15-01-51
+.. nonce: 1S7QhT
+.. section: Library
+
+Fix in :meth:`bz2.BZ2File.write` / :meth:`lzma.LZMAFile.write` methods, when
+the input data is an object that supports the buffer protocol, the file
+length may be wrong.
+
+..
+
+.. bpo: 44434
+.. date: 2021-06-16-16-52-14
+.. nonce: SQS4Pg
+.. section: Library
+
+_thread.start_new_thread() no longer calls PyThread_exit_thread() explicitly
+at the thread exit, the call was redundant. On Linux with the glibc,
+pthread_exit() aborts the whole process if dlopen() fails to open
+libgcc_s.so file (ex: EMFILE error). Patch by Victor Stinner.
+
+..
+
+.. bpo: 44395
+.. date: 2021-06-12-10-08-14
+.. nonce: PcW6Sx
+.. section: Library
+
+Fix :meth:`~email.message.MIMEPart.as_string` to pass unixfrom properly.
+Patch by Dong-hee Na.
+
+..
+
+.. bpo: 34266
+.. date: 2021-06-10-21-53-46
+.. nonce: k3fxnm
+.. section: Library
+
+Handle exceptions from parsing the arg of :mod:`pdb`'s run/restart command.
+
+..
+
+.. bpo: 44077
+.. date: 2021-05-13-19-44-38
+.. nonce: 04b2a4
+.. section: Library
+
+It's now possible to receive the type of service (ToS), a.k.a.
+differentiated services (DS), a.k.a. differenciated services code point
+(DSCP) and excplicit congestion notification (ECN) IP header fields with
+``socket.IP_RECVTOS``.
+
+..
+
+.. bpo: 43024
+.. date: 2021-01-25-21-24-55
+.. nonce: vAUrIi
+.. section: Library
+
+Improve the help signature of :func:`traceback.print_exception`,
+:func:`traceback.format_exception` and
+:func:`traceback.format_exception_only`.
+
+..
+
+.. bpo: 30256
+.. date: 2019-09-25-13-54-41
+.. nonce: wBkzox
+.. section: Library
+
+Pass multiprocessing BaseProxy argument ``manager_owned`` through AutoProxy.
+
+..
+
+.. bpo: 44558
+.. date: 2021-07-03-18-25-17
+.. nonce: 0pTknl
+.. section: Documentation
+
+Match the docstring and python implementation of :func:`~operator.countOf`
+to the behavior of its c implementation.
+
+..
+
+.. bpo: 38062
+.. date: 2021-06-28-12-13-48
+.. nonce: 9Ehp9O
+.. section: Documentation
+
+Clarify that atexit uses equality comparisons internally.
+
+..
+
+.. bpo: 40620
+.. date: 2021-06-26-17-41-06
+.. nonce: PAYDrB
+.. section: Documentation
+
+Convert examples in tutorial controlflow.rst section 4.3 to be
+interpreter-demo style.
+
+..
+
+.. bpo: 13814
+.. date: 2021-06-21-15-46-32
+.. nonce: LDcslu
+.. section: Documentation
+
+In the Design FAQ, answer "Why don't generators support the with statement?"
+
+..
+
+.. bpo: 41621
+.. date: 2020-08-24-13-35-04
+.. nonce: nqaw9G
+.. section: Documentation
+
+Document that :class:`collections.defaultdict` parameter ``default_factory``
+defaults to None and is positional-only.
+
+..
+
+.. bpo: 44287
+.. date: 2021-06-21-17-53-41
+.. nonce: YON57s
+.. section: Tests
+
+Fix asyncio test_popen() of test_windows_utils by using a longer timeout.
+Use military grade battle-tested :data:`test.support.SHORT_TIMEOUT` timeout
+rather than a hardcoded timeout of 10 seconds: it's 30 seconds by default,
+but it is made longer on slow buildbots. Patch by Victor Stinner.
+
+..
+
+.. bpo: 44451
+.. date: 2021-06-18-15-19-35
+.. nonce: aj5pqE
+.. section: Tests
+
+Reset ``DeprecationWarning`` filters in
+``test.test_importlib.test_metadata_api.APITests.test_entry_points_by_index``
+to avoid ``StopIteration`` error if ``DeprecationWarnings`` are ignored.
+
+..
+
+.. bpo: 30256
+.. date: 2019-09-25-18-10-10
+.. nonce: A5i76Q
+.. section: Tests
+
+Add test for nested queues when using ``multiprocessing`` shared objects
+``AutoProxy[Queue]`` inside ``ListProxy`` and ``DictProxy``
+
+..
+
+.. bpo: 44535
+.. date: 2021-06-30-02-32-46
+.. nonce: M9iN4-
+.. section: Build
+
+Enable building using a Visual Studio 2022 install on Windows.
+
+..
+
+.. bpo: 43298
+.. date: 2021-06-19-11-50-03
+.. nonce: 9ircMb
+.. section: Build
+
+Improved error message when building without a Windows SDK installed.
+
+..
+
+.. bpo: 44582
+.. date: 2021-07-07-21-07-18
+.. nonce: 4Mm6Hh
+.. section: Windows
+
+Accelerate speed of :mod:`mimetypes` initialization using a native
+implementation of the registry scan.
+
+..
+
+.. bpo: 41299
+.. date: 2021-06-06-16-36-13
+.. nonce: Rg-vb_
+.. section: Windows
+
+Fix 16ms jitter when using timeouts in :mod:`threading`, such as with
+:meth:`threading.Lock.acquire` or :meth:`threading.Condition.wait`.
+
+..
+
+.. bpo: 44441
+.. date: 2021-06-23-12-12-04
+.. nonce: 3p14JB
+.. section: C API
+
+:c:func:`Py_RunMain` now resets :c:data:`PyImport_Inittab` to its initial
+value at exit. It must be possible to call :c:func:`PyImport_AppendInittab`
+or :c:func:`PyImport_ExtendInittab` at each Python initialization. Patch by
+Victor Stinner.
+
+..
+
+.. bpo: 40939
+.. date: 2021-06-22-17-00-06
+.. nonce: CGB0I5
+.. section: C API
+
+Removed documentation for the removed ``PyParser_*`` C API.
projects / thirdparty / Python / cpython.git / commitdiff
