Python 3.10.0b4v3.10.0b4

47 files changed, 441 insertions, 89 deletions

diff --git a/Include/patchlevel.h b/Include/patchlevel.h
index f0fa5f5caac..6d539dfa4cf 100644
--- a/Include/patchlevel.h
+++ b/Include/patchlevel.h
@@ -20,10 +20,10 @@
 #define PY_MINOR_VERSION        10
 #define PY_MICRO_VERSION        0
 #define PY_RELEASE_LEVEL        PY_RELEASE_LEVEL_BETA
-#define PY_RELEASE_SERIAL       3
+#define PY_RELEASE_SERIAL       4
 
 /* Version as a string */
-#define PY_VERSION              "3.10.0b3+"
+#define PY_VERSION              "3.10.0b4"
 /*--end constants--*/
 
 /* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2.
diff --git a/Lib/pydoc_data/topics.py b/Lib/pydoc_data/topics.py
index 5943dcdf1e1..0d2ccc5c278 100644
--- a/Lib/pydoc_data/topics.py
+++ b/Lib/pydoc_data/topics.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Autogenerated by Sphinx on Thu Jun 17 11:28:07 2021
+# Autogenerated by Sphinx on Sat Jul 10 01:50:39 2021
 topics = {'assert': 'The "assert" statement\n'
            '**********************\n'
            '\n'
diff --git a/Misc/NEWS.d/3.10.0b4.rst b/Misc/NEWS.d/3.10.0b4.rst
new file mode 100644
index 00000000000..417bd36ab4b
--- /dev/null
+++ b/Misc/NEWS.d/3.10.0b4.rst
@@ -0,0 +1,437 @@
+.. 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.
diff --git a/Misc/NEWS.d/next/Build/2021-06-19-11-50-03.bpo-43298.9ircMb.rst b/Misc/NEWS.d/next/Build/2021-06-19-11-50-03.bpo-43298.9ircMb.rst
deleted file mode 100644
index 3bdc24b147a..00000000000
--- a/Misc/NEWS.d/next/Build/2021-06-19-11-50-03.bpo-43298.9ircMb.rst
+++ /dev/null
@@ -1 +0,0 @@
-Improved error message when building without a Windows SDK installed.
diff --git a/Misc/NEWS.d/next/Build/2021-06-30-02-32-46.bpo-44535.M9iN4-.rst b/Misc/NEWS.d/next/Build/2021-06-30-02-32-46.bpo-44535.M9iN4-.rst
deleted file mode 100644
index e06d0d30485..00000000000
--- a/Misc/NEWS.d/next/Build/2021-06-30-02-32-46.bpo-44535.M9iN4-.rst
+++ /dev/null
@@ -1 +0,0 @@
-Enable building using a Visual Studio 2022 install on Windows.
diff --git a/Misc/NEWS.d/next/C API/2021-06-22-17-00-06.bpo-40939.CGB0I5.rst b/Misc/NEWS.d/next/C API/2021-06-22-17-00-06.bpo-40939.CGB0I5.rst
deleted file mode 100644
index 2531ac1ba3c..00000000000
--- a/Misc/NEWS.d/next/C API/2021-06-22-17-00-06.bpo-40939.CGB0I5.rst
+++ /dev/null
@@ -1 +0,0 @@
-Removed documentation for the removed ``PyParser_*`` C API.
diff --git a/Misc/NEWS.d/next/C API/2021-06-23-12-12-04.bpo-44441.3p14JB.rst b/Misc/NEWS.d/next/C API/2021-06-23-12-12-04.bpo-44441.3p14JB.rst
deleted file mode 100644
index 80c4282c18e..00000000000
--- a/Misc/NEWS.d/next/C API/2021-06-23-12-12-04.bpo-44441.3p14JB.rst
+++ /dev/null
@@ -1,4 +0,0 @@
-: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.
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-05-27-17-34-29.bpo-43667.ND9jP3.rst b/Misc/NEWS.d/next/Core and Builtins/2021-05-27-17-34-29.bpo-43667.ND9jP3.rst
deleted file mode 100644
index 53130cce718..00000000000
--- a/Misc/NEWS.d/next/Core and Builtins/2021-05-27-17-34-29.bpo-43667.ND9jP3.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Improve Unicode support in non-UTF locales on Oracle Solaris. This issue
-does not affect other Solaris systems.
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-06-06-00-29-14.bpo-44317.xPPhcZ.rst b/Misc/NEWS.d/next/Core and Builtins/2021-06-06-00-29-14.bpo-44317.xPPhcZ.rst
deleted file mode 100644
index 8ac32adf8b5..00000000000
--- a/Misc/NEWS.d/next/Core and Builtins/2021-06-06-00-29-14.bpo-44317.xPPhcZ.rst
+++ /dev/null
@@ -1 +0,0 @@
-Improve tokenizer error with improved locations. Patch by Pablo Galindo.
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-06-09-22-56-59.bpo-44368.vgT0Cx.rst b/Misc/NEWS.d/next/Core and Builtins/2021-06-09-22-56-59.bpo-44368.vgT0Cx.rst
deleted file mode 100644
index e0d19134510..00000000000
--- a/Misc/NEWS.d/next/Core and Builtins/2021-06-09-22-56-59.bpo-44368.vgT0Cx.rst
+++ /dev/null
@@ -1 +0,0 @@
-Improve syntax errors for invalid "as" targets. Patch by Pablo Galindo
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-06-18-22-08-25.bpo-44456.L0Rhko.rst b/Misc/NEWS.d/next/Core and Builtins/2021-06-18-22-08-25.bpo-44456.L0Rhko.rst
deleted file mode 100644
index 86a8c03ce56..00000000000
--- a/Misc/NEWS.d/next/Core and Builtins/2021-06-18-22-08-25.bpo-44456.L0Rhko.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Improve the syntax error when mixing positional and keyword patterns. Patch
-by Pablo Galindo.
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-06-19-12-41-13.bpo-44297.F53vHj.rst b/Misc/NEWS.d/next/Core and Builtins/2021-06-19-12-41-13.bpo-44297.F53vHj.rst
deleted file mode 100644
index bdcb5b2db39..00000000000
--- a/Misc/NEWS.d/next/Core and Builtins/2021-06-19-12-41-13.bpo-44297.F53vHj.rst
+++ /dev/null
@@ -1,3 +0,0 @@
-Make sure that the line number is set when entering a comprehension scope.
-Ensures that backtraces inclusing generator expressions show the correct
-line number.
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-06-22-19-08-19.bpo-44483.eq2f7T.rst b/Misc/NEWS.d/next/Core and Builtins/2021-06-22-19-08-19.bpo-44483.eq2f7T.rst
deleted file mode 100644
index ea54e79acfd..00000000000
--- a/Misc/NEWS.d/next/Core and Builtins/2021-06-22-19-08-19.bpo-44483.eq2f7T.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Fix a crash in ``types.Union`` objects when creating a union of an object
-with bad ``__module__`` field.
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-06-29-11-49-29.bpo-44523.67-ZIP.rst b/Misc/NEWS.d/next/Core and Builtins/2021-06-29-11-49-29.bpo-44523.67-ZIP.rst
deleted file mode 100644
index aa51a747858..00000000000
--- a/Misc/NEWS.d/next/Core and Builtins/2021-06-29-11-49-29.bpo-44523.67-ZIP.rst
+++ /dev/null
@@ -1,3 +0,0 @@
-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.
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-07-02-22-54-41.bpo-44553.l9YqGg.rst b/Misc/NEWS.d/next/Core and Builtins/2021-07-02-22-54-41.bpo-44553.l9YqGg.rst
deleted file mode 100644
index e97df029948..00000000000
--- a/Misc/NEWS.d/next/Core and Builtins/2021-07-02-22-54-41.bpo-44553.l9YqGg.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Implement GC methods for ``types.Union`` to break reference cycles and
-prevent memory leaks.
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-07-04-17-41-47.bpo-41486.DiM24a.rst b/Misc/NEWS.d/next/Core and Builtins/2021-07-04-17-41-47.bpo-41486.DiM24a.rst
deleted file mode 100644
index 6a373f67f62..00000000000
--- a/Misc/NEWS.d/next/Core and Builtins/2021-07-04-17-41-47.bpo-41486.DiM24a.rst
+++ /dev/null
@@ -1,3 +0,0 @@
-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.
diff --git a/Misc/NEWS.d/next/Core and Builtins/2021-07-04-23-38-51.bpo-44562.QdeRQo.rst b/Misc/NEWS.d/next/Core and Builtins/2021-07-04-23-38-51.bpo-44562.QdeRQo.rst
deleted file mode 100644
index 2fc65bcfdee..00000000000
--- a/Misc/NEWS.d/next/Core and Builtins/2021-07-04-23-38-51.bpo-44562.QdeRQo.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Remove uses of :c:func:`PyObject_GC_Del` in error path when initializing
-:class:`types.GenericAlias`.
diff --git a/Misc/NEWS.d/next/Documentation/2020-08-24-13-35-04.bpo-41621.nqaw9G.rst b/Misc/NEWS.d/next/Documentation/2020-08-24-13-35-04.bpo-41621.nqaw9G.rst
deleted file mode 100644
index bd193d91630..00000000000
--- a/Misc/NEWS.d/next/Documentation/2020-08-24-13-35-04.bpo-41621.nqaw9G.rst
+++ /dev/null
@@ -1 +0,0 @@
-Document that :class:`collections.defaultdict` parameter ``default_factory`` defaults to None and is positional-only.
diff --git a/Misc/NEWS.d/next/Documentation/2021-06-21-15-46-32.bpo-13814.LDcslu.rst b/Misc/NEWS.d/next/Documentation/2021-06-21-15-46-32.bpo-13814.LDcslu.rst
deleted file mode 100644
index db0c6d6524b..00000000000
--- a/Misc/NEWS.d/next/Documentation/2021-06-21-15-46-32.bpo-13814.LDcslu.rst
+++ /dev/null
@@ -1 +0,0 @@
-In the Design FAQ, answer "Why don't generators support the with statement?"
diff --git a/Misc/NEWS.d/next/Documentation/2021-06-26-17-41-06.bpo-40620.PAYDrB.rst b/Misc/NEWS.d/next/Documentation/2021-06-26-17-41-06.bpo-40620.PAYDrB.rst
deleted file mode 100644
index 52b451b4926..00000000000
--- a/Misc/NEWS.d/next/Documentation/2021-06-26-17-41-06.bpo-40620.PAYDrB.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Convert examples in tutorial controlflow.rst section 4.3 to be interpreter-demo
-style.
diff --git a/Misc/NEWS.d/next/Documentation/2021-06-28-12-13-48.bpo-38062.9Ehp9O.rst b/Misc/NEWS.d/next/Documentation/2021-06-28-12-13-48.bpo-38062.9Ehp9O.rst
deleted file mode 100644
index 1d90096e20b..00000000000
--- a/Misc/NEWS.d/next/Documentation/2021-06-28-12-13-48.bpo-38062.9Ehp9O.rst
+++ /dev/null
@@ -1 +0,0 @@
-Clarify that atexit uses equality comparisons internally.
diff --git a/Misc/NEWS.d/next/Documentation/2021-07-03-18-25-17.bpo-44558.0pTknl.rst b/Misc/NEWS.d/next/Documentation/2021-07-03-18-25-17.bpo-44558.0pTknl.rst
deleted file mode 100644
index a12a49ccd80..00000000000
--- a/Misc/NEWS.d/next/Documentation/2021-07-03-18-25-17.bpo-44558.0pTknl.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Match the docstring and python implementation of :func:`~operator.countOf` to the behavior

-of its c implementation.

diff --git a/Misc/NEWS.d/next/Library/2019-09-25-13-54-41.bpo-30256.wBkzox.rst b/Misc/NEWS.d/next/Library/2019-09-25-13-54-41.bpo-30256.wBkzox.rst
deleted file mode 100644
index 698b0e8a61c..00000000000
--- a/Misc/NEWS.d/next/Library/2019-09-25-13-54-41.bpo-30256.wBkzox.rst
+++ /dev/null
@@ -1 +0,0 @@
-Pass multiprocessing BaseProxy argument ``manager_owned`` through AutoProxy.
diff --git a/Misc/NEWS.d/next/Library/2021-01-25-21-24-55.bpo-43024.vAUrIi.rst b/Misc/NEWS.d/next/Library/2021-01-25-21-24-55.bpo-43024.vAUrIi.rst
deleted file mode 100644
index 56596ce3c2a..00000000000
--- a/Misc/NEWS.d/next/Library/2021-01-25-21-24-55.bpo-43024.vAUrIi.rst
+++ /dev/null
@@ -1 +0,0 @@
-Improve the help signature of :func:`traceback.print_exception`, :func:`traceback.format_exception` and :func:`traceback.format_exception_only`.
diff --git a/Misc/NEWS.d/next/Library/2021-05-13-19-44-38.bpo-44077.04b2a4.rst b/Misc/NEWS.d/next/Library/2021-05-13-19-44-38.bpo-44077.04b2a4.rst
deleted file mode 100644
index 7bb4379f571..00000000000
--- a/Misc/NEWS.d/next/Library/2021-05-13-19-44-38.bpo-44077.04b2a4.rst
+++ /dev/null
@@ -1,3 +0,0 @@
-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``.
diff --git a/Misc/NEWS.d/next/Library/2021-06-10-21-53-46.bpo-34266.k3fxnm.rst b/Misc/NEWS.d/next/Library/2021-06-10-21-53-46.bpo-34266.k3fxnm.rst
deleted file mode 100644
index 22ef84e9626..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-10-21-53-46.bpo-34266.k3fxnm.rst
+++ /dev/null
@@ -1 +0,0 @@
-Handle exceptions from parsing the arg of :mod:`pdb`'s run/restart command.
diff --git a/Misc/NEWS.d/next/Library/2021-06-12-10-08-14.bpo-44395.PcW6Sx.rst b/Misc/NEWS.d/next/Library/2021-06-12-10-08-14.bpo-44395.PcW6Sx.rst
deleted file mode 100644
index 6172eec0a9b..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-12-10-08-14.bpo-44395.PcW6Sx.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Fix :meth:`~email.message.MIMEPart.as_string` to pass unixfrom properly.
-Patch by Dong-hee Na.
diff --git a/Misc/NEWS.d/next/Library/2021-06-16-16-52-14.bpo-44434.SQS4Pg.rst b/Misc/NEWS.d/next/Library/2021-06-16-16-52-14.bpo-44434.SQS4Pg.rst
deleted file mode 100644
index 37b5b57ce65..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-16-16-52-14.bpo-44434.SQS4Pg.rst
+++ /dev/null
@@ -1,4 +0,0 @@
-_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.
diff --git a/Misc/NEWS.d/next/Library/2021-06-17-15-01-51.bpo-44439.1S7QhT.rst b/Misc/NEWS.d/next/Library/2021-06-17-15-01-51.bpo-44439.1S7QhT.rst
deleted file mode 100644
index 27396683700..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-17-15-01-51.bpo-44439.1S7QhT.rst
+++ /dev/null
@@ -1,3 +0,0 @@
-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.
diff --git a/Misc/NEWS.d/next/Library/2021-06-17-22-39-34.bpo-44446.qwdRic.rst b/Misc/NEWS.d/next/Library/2021-06-17-22-39-34.bpo-44446.qwdRic.rst
deleted file mode 100644
index 6d9758f42dd..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-17-22-39-34.bpo-44446.qwdRic.rst
+++ /dev/null
@@ -1 +0,0 @@
-Take into account that ``lineno`` might be ``None`` in :class:`traceback.FrameSummary`.
diff --git a/Misc/NEWS.d/next/Library/2021-06-19-21-52-27.bpo-44464.U2oa-a.rst b/Misc/NEWS.d/next/Library/2021-06-19-21-52-27.bpo-44464.U2oa-a.rst
deleted file mode 100644
index 6b1c10783d5..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-19-21-52-27.bpo-44464.U2oa-a.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Remove exception for flake8 in deprecated importlib.metadata interfaces.
-Sync with importlib_metadata 4.6.
diff --git a/Misc/NEWS.d/next/Library/2021-06-20-07-14-46.bpo-44458.myqCQ0.rst b/Misc/NEWS.d/next/Library/2021-06-20-07-14-46.bpo-44458.myqCQ0.rst
deleted file mode 100644
index f15104b75e3..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-20-07-14-46.bpo-44458.myqCQ0.rst
+++ /dev/null
@@ -1 +0,0 @@
-``BUFFER_BLOCK_SIZE`` is now declared static, to avoid linking collisions when bz2, lmza or zlib are statically linked.
\ No newline at end of file
diff --git a/Misc/NEWS.d/next/Library/2021-06-20-19-01-11.bpo-44404.McfrYB.rst b/Misc/NEWS.d/next/Library/2021-06-20-19-01-11.bpo-44404.McfrYB.rst
deleted file mode 100644
index ff6ca1bfa72..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-20-19-01-11.bpo-44404.McfrYB.rst
+++ /dev/null
@@ -1 +0,0 @@
-:mod:`tkinter`'s ``after()`` method now supports callables without the ``__name__`` attribute.
diff --git a/Misc/NEWS.d/next/Library/2021-06-21-12-43-04.bpo-44466.NSm6mv.rst b/Misc/NEWS.d/next/Library/2021-06-21-12-43-04.bpo-44466.NSm6mv.rst
deleted file mode 100644
index 69de3edb5a7..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-21-12-43-04.bpo-44466.NSm6mv.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-The :mod:`faulthandler` module now detects if a fatal error occurs during a
-garbage collector collection. Patch by Victor Stinner.
diff --git a/Misc/NEWS.d/next/Library/2021-06-22-08-43-04.bpo-44482.U9GznK.rst b/Misc/NEWS.d/next/Library/2021-06-22-08-43-04.bpo-44482.U9GznK.rst
deleted file mode 100644
index d05fe908e3e..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-22-08-43-04.bpo-44482.U9GznK.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Fix very unlikely resource leak in :mod:`glob` in alternate Python
-implementations.
diff --git a/Misc/NEWS.d/next/Library/2021-06-22-16-45-48.bpo-43977.bamAGF.rst b/Misc/NEWS.d/next/Library/2021-06-22-16-45-48.bpo-43977.bamAGF.rst
deleted file mode 100644
index 5f8cb7b7ea7..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-22-16-45-48.bpo-43977.bamAGF.rst
+++ /dev/null
@@ -1,3 +0,0 @@
-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`.
diff --git a/Misc/NEWS.d/next/Library/2021-06-23-19-02-00.bpo-44468.-klV5-.rst b/Misc/NEWS.d/next/Library/2021-06-23-19-02-00.bpo-44468.-klV5-.rst
deleted file mode 100644
index 78251c7d550..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-23-19-02-00.bpo-44468.-klV5-.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-:func:`typing.get_type_hints` now finds annotations in classes and base classes
-with unexpected ``__module__``. Previously, it skipped those MRO elements.
diff --git a/Misc/NEWS.d/next/Library/2021-06-26-12-27-14.bpo-44516.BVyX_y.rst b/Misc/NEWS.d/next/Library/2021-06-26-12-27-14.bpo-44516.BVyX_y.rst
deleted file mode 100644
index a9822881135..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-26-12-27-14.bpo-44516.BVyX_y.rst
+++ /dev/null
@@ -1 +0,0 @@
-Update vendored pip to 21.1.3
diff --git a/Misc/NEWS.d/next/Library/2021-06-30-13-29-49.bpo-34798.t7FCa0.rst b/Misc/NEWS.d/next/Library/2021-06-30-13-29-49.bpo-34798.t7FCa0.rst
deleted file mode 100644
index ab9fd8e3379..00000000000
--- a/Misc/NEWS.d/next/Library/2021-06-30-13-29-49.bpo-34798.t7FCa0.rst
+++ /dev/null
@@ -1 +0,0 @@
-Break up paragraph about :class:`pprint.PrettyPrinter` construction parameters to make it easier to read.
\ No newline at end of file
diff --git a/Misc/NEWS.d/next/Library/2021-07-04-21-16-53.bpo-44558.cm7Slv.rst b/Misc/NEWS.d/next/Library/2021-07-04-21-16-53.bpo-44558.cm7Slv.rst
deleted file mode 100644
index 647a70490d1..00000000000
--- a/Misc/NEWS.d/next/Library/2021-07-04-21-16-53.bpo-44558.cm7Slv.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Make the implementation consistency of :func:`~operator.indexOf` between
-C and Python versions. Patch by Dong-hee Na.
diff --git a/Misc/NEWS.d/next/Security/2021-06-29-23-40-22.bpo-41180.uTWHv_.rst b/Misc/NEWS.d/next/Security/2021-06-29-23-40-22.bpo-41180.uTWHv_.rst
deleted file mode 100644
index 88b70c7cea2..00000000000
--- a/Misc/NEWS.d/next/Security/2021-06-29-23-40-22.bpo-41180.uTWHv_.rst
+++ /dev/null
@@ -1,5 +0,0 @@
-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.
diff --git a/Misc/NEWS.d/next/Tests/2019-09-25-18-10-10.bpo-30256.A5i76Q.rst b/Misc/NEWS.d/next/Tests/2019-09-25-18-10-10.bpo-30256.A5i76Q.rst
deleted file mode 100644
index 4a7cfd52fce..00000000000
--- a/Misc/NEWS.d/next/Tests/2019-09-25-18-10-10.bpo-30256.A5i76Q.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Add test for nested queues when using ``multiprocessing`` shared objects
-``AutoProxy[Queue]`` inside ``ListProxy`` and ``DictProxy``
diff --git a/Misc/NEWS.d/next/Tests/2021-06-18-15-19-35.bpo-44451.aj5pqE.rst b/Misc/NEWS.d/next/Tests/2021-06-18-15-19-35.bpo-44451.aj5pqE.rst
deleted file mode 100644
index 0f635cfe18d..00000000000
--- a/Misc/NEWS.d/next/Tests/2021-06-18-15-19-35.bpo-44451.aj5pqE.rst
+++ /dev/null
@@ -1,3 +0,0 @@
-Reset ``DeprecationWarning`` filters in
-``test.test_importlib.test_metadata_api.APITests.test_entry_points_by_index``
-to avoid ``StopIteration`` error if ``DeprecationWarnings`` are ignored.
diff --git a/Misc/NEWS.d/next/Tests/2021-06-21-17-53-41.bpo-44287.YON57s.rst b/Misc/NEWS.d/next/Tests/2021-06-21-17-53-41.bpo-44287.YON57s.rst
deleted file mode 100644
index 66b3afe139a..00000000000
--- a/Misc/NEWS.d/next/Tests/2021-06-21-17-53-41.bpo-44287.YON57s.rst
+++ /dev/null
@@ -1,4 +0,0 @@
-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.
diff --git a/Misc/NEWS.d/next/Windows/2021-06-06-16-36-13.bpo-41299.Rg-vb_.rst b/Misc/NEWS.d/next/Windows/2021-06-06-16-36-13.bpo-41299.Rg-vb_.rst
deleted file mode 100644
index 71f700ffa15..00000000000
--- a/Misc/NEWS.d/next/Windows/2021-06-06-16-36-13.bpo-41299.Rg-vb_.rst
+++ /dev/null
@@ -1 +0,0 @@
-Fix 16ms jitter when using timeouts in :mod:`threading`, such as with :meth:`threading.Lock.acquire` or :meth:`threading.Condition.wait`.
diff --git a/Misc/NEWS.d/next/Windows/2021-07-07-21-07-18.bpo-44582.4Mm6Hh.rst b/Misc/NEWS.d/next/Windows/2021-07-07-21-07-18.bpo-44582.4Mm6Hh.rst
deleted file mode 100644
index f79c88931c5..00000000000
--- a/Misc/NEWS.d/next/Windows/2021-07-07-21-07-18.bpo-44582.4Mm6Hh.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Accelerate speed of :mod:`mimetypes` initialization using a native
-implementation of the registry scan.
diff --git a/README.rst b/README.rst
index 29678bdab84..63eaefc358f 100644
--- a/README.rst
+++ b/README.rst
@@ -1,4 +1,4 @@
-This is Python version 3.10.0 beta 3
+This is Python version 3.10.0 beta 4
 ====================================
 
 .. image:: https://travis-ci.com/python/cpython.svg?branch=master