From e76ac9d4ef77b74ea7de768f4de7c38893fad539 Mon Sep 17 00:00:00 2001
From: Ned Deily <nad@python.org>
Date: Thu, 28 Jun 2018 04:18:35 -0400
Subject: [PATCH] Forward port rest of NEWS changes as of 3.7.0

---
 Misc/NEWS.d/3.6.6rc1.rst |   2 +-
 Misc/NEWS.d/3.7.0b1.rst  |   3 +
 Misc/NEWS.d/3.7.0b2.rst  | 655 +++++++++++++++++++++++++++++++++++++++
 Misc/NEWS.d/3.7.0b3.rst  | 541 ++++++++++++++++++++++++++++++++
 Misc/NEWS.d/3.7.0b4.rst  | 466 ++++++++++++++++++++++++++++
 Misc/NEWS.d/3.7.0b5.rst  | 592 +++++++++++++++++++++++++++++++++++
 Misc/NEWS.d/3.7.0rc1.rst | 275 ++++++++++++++++
 7 files changed, 2533 insertions(+), 1 deletion(-)
 create mode 100644 Misc/NEWS.d/3.7.0b2.rst
 create mode 100644 Misc/NEWS.d/3.7.0b3.rst
 create mode 100644 Misc/NEWS.d/3.7.0b4.rst
 create mode 100644 Misc/NEWS.d/3.7.0b5.rst
 create mode 100644 Misc/NEWS.d/3.7.0rc1.rst

diff --git a/Misc/NEWS.d/3.6.6rc1.rst b/Misc/NEWS.d/3.6.6rc1.rst
index bc21a34b1fd..85428d8245e 100644
--- a/Misc/NEWS.d/3.6.6rc1.rst
+++ b/Misc/NEWS.d/3.6.6rc1.rst
@@ -175,7 +175,7 @@ handshake to hang or fail.
 
 ..
 
-.. bpo: 31467
+.. bpo: 31647
 .. date: 2018-05-28-18-40-26
 .. nonce: s4Fad3
 .. section: Library
diff --git a/Misc/NEWS.d/3.7.0b1.rst b/Misc/NEWS.d/3.7.0b1.rst
index aad642e41b1..db4adfb7887 100644
--- a/Misc/NEWS.d/3.7.0b1.rst
+++ b/Misc/NEWS.d/3.7.0b1.rst
@@ -142,6 +142,7 @@ Remove the STORE_ANNOTATION bytecode.
 .. section: Core and Builtins
 
 Expose posix_spawn as a low level API in the os module.
+(removed before 3.7.0rc1)
 
 ..
 
@@ -747,6 +748,8 @@ subinterpreter C-API and a new cross-interpreter data sharing mechanism. The
 module is primarily intended for more thorough testing of the existing
 subinterpreter support.
 
+Note that the _xxsubinterpreters module has been removed in 3.7.0rc1.
+
 ..
 
 .. bpo: 32602
diff --git a/Misc/NEWS.d/3.7.0b2.rst b/Misc/NEWS.d/3.7.0b2.rst
new file mode 100644
index 00000000000..7d137128b5b
--- /dev/null
+++ b/Misc/NEWS.d/3.7.0b2.rst
@@ -0,0 +1,655 @@
+.. bpo: 28414
+.. date: 2017-08-06-14-43-45
+.. nonce: mzZ6vD
+.. release date: 2018-02-27
+.. section: Security
+
+The ssl module now allows users to perform their own IDN en/decoding when
+using SNI.
+
+..
+
+.. bpo: 32889
+.. date: 2018-02-20-21-53-48
+.. nonce: J6eWy5
+.. section: Core and Builtins
+
+Update Valgrind suppression list to account for the rename of
+``Py_ADDRESS_IN_RANG`` to ``address_in_range``.
+
+..
+
+.. bpo: 31356
+.. date: 2018-02-02-08-50-46
+.. nonce: MNwUOQ
+.. section: Core and Builtins
+
+Remove the new API added in bpo-31356 (gc.ensure_disabled() context
+manager).
+
+..
+
+.. bpo: 32305
+.. date: 2018-02-01-10-56-41
+.. nonce: dkU9Qa
+.. section: Core and Builtins
+
+For namespace packages, ensure that both ``__file__`` and
+``__spec__.origin`` are set to None.
+
+..
+
+.. bpo: 32303
+.. date: 2018-02-01-10-16-28
+.. nonce: VsvhSl
+.. section: Core and Builtins
+
+Make sure ``__spec__.loader`` matches ``__loader__`` for namespace packages.
+
+..
+
+.. bpo: 32711
+.. date: 2018-01-29-14-36-37
+.. nonce: 8hQFJP
+.. section: Core and Builtins
+
+Fix the warning messages for Python/ast_unparse.c. Patch by Stéphane Wirtel
+
+..
+
+.. bpo: 32583
+.. date: 2018-01-26-21-20-21
+.. nonce: Fh3fau
+.. section: Core and Builtins
+
+Fix possible crashing in builtin Unicode decoders caused by write
+out-of-bound errors when using customized decode error handlers.
+
+..
+
+.. bpo: 32960
+.. date: 2018-02-26-20-04-40
+.. nonce: 48r0Ml
+.. section: Library
+
+For dataclasses, disallow inheriting frozen from non-frozen classes, and
+also disallow inheriting non-frozen from frozen classes. This restriction
+will be relaxed at a future date.
+
+..
+
+.. bpo: 32713
+.. date: 2018-02-26-13-16-36
+.. nonce: 55yegW
+.. section: Library
+
+Fixed tarfile.itn handling of out-of-bounds float values. Patch by Joffrey
+Fuhrer.
+
+..
+
+.. bpo: 32951
+.. date: 2018-02-25-18-22-01
+.. nonce: gHrCXq
+.. section: Library
+
+Direct instantiation of SSLSocket and SSLObject objects is now prohibited.
+The constructors were never documented, tested, or designed as public
+constructors. Users were suppose to use ssl.wrap_socket() or SSLContext.
+
+..
+
+.. bpo: 32929
+.. date: 2018-02-25-13-47-48
+.. nonce: X2gTDH
+.. section: Library
+
+Remove the tri-state parameter "hash", and add the boolean "unsafe_hash". If
+unsafe_hash is True, add a __hash__ function, but if a __hash__ exists,
+raise TypeError.  If unsafe_hash is False, add a __hash__ based on the
+values of eq= and frozen=.  The unsafe_hash=False behavior is the same as
+the old hash=None behavior.  unsafe_hash=False is the default, just as
+hash=None used to be.
+
+..
+
+.. bpo: 32947
+.. date: 2018-02-25-13-06-21
+.. nonce: mqStVW
+.. section: Library
+
+Add OP_ENABLE_MIDDLEBOX_COMPAT and test workaround for TLSv1.3 for future
+compatibility with OpenSSL 1.1.1.
+
+..
+
+.. bpo: 30622
+.. date: 2018-02-24-21-40-42
+.. nonce: dQjxSe
+.. section: Library
+
+The ssl module now detects missing NPN support in LibreSSL.
+
+..
+
+.. bpo: 32922
+.. date: 2018-02-23-19-12-04
+.. nonce: u-xe0B
+.. section: Library
+
+dbm.open() now encodes filename with the filesystem encoding rather than
+default encoding.
+
+..
+
+.. bpo: 32859
+.. date: 2018-02-19-17-46-31
+.. nonce: kAT-Xp
+.. section: Library
+
+In ``os.dup2``, don't check every call whether the ``dup3`` syscall exists
+or not.
+
+..
+
+.. bpo: 32556
+.. date: 2018-02-19-14-27-51
+.. nonce: CsRsgr
+.. section: Library
+
+nt._getfinalpathname, nt._getvolumepathname and nt._getdiskusage now
+correctly convert from bytes.
+
+..
+
+.. bpo: 25988
+.. date: 2018-02-18-13-04-59
+.. nonce: ACidKC
+.. section: Library
+
+Emit a :exc:`DeprecationWarning` when using or importing an ABC directly
+from :mod:`collections` rather than from :mod:`collections.abc`.
+
+..
+
+.. bpo: 21060
+.. date: 2018-02-17-19-20-19
+.. nonce: S1Z-x6
+.. section: Library
+
+Rewrite confusing message from setup.py upload from "No dist file created in
+earlier command" to the more helpful "Must create and upload files in one
+command".
+
+..
+
+.. bpo: 32852
+.. date: 2018-02-15-12-04-29
+.. nonce: HDqIxM
+.. section: Library
+
+Make sure sys.argv remains as a list when running trace.
+
+..
+
+.. bpo: 31333
+.. date: 2018-02-15-08-18-52
+.. nonce: 4fF-gM
+.. section: Library
+
+``_abc`` module is added.  It is a speedup module with C implementations for
+various functions and methods in ``abc``.  Creating an ABC subclass and
+calling ``isinstance`` or ``issubclass`` with an ABC subclass are up to 1.5x
+faster. In addition, this makes Python start-up up to 10% faster.
+
+Note that the new implementation hides internal registry and caches,
+previously accessible via private attributes ``_abc_registry``,
+``_abc_cache``, and ``_abc_negative_cache``.  There are three debugging
+helper methods that can be used instead ``_dump_registry``,
+``_abc_registry_clear``, and ``_abc_caches_clear``.
+
+..
+
+.. bpo: 32841
+.. date: 2018-02-14-00-21-24
+.. nonce: bvHDOc
+.. section: Library
+
+Fixed `asyncio.Condition` issue which silently ignored cancellation after
+notifying and cancelling a conditional lock. Patch by Bar Harel.
+
+..
+
+.. bpo: 32819
+.. date: 2018-02-11-15-54-41
+.. nonce: ZTRX2Q
+.. section: Library
+
+ssl.match_hostname() has been simplified and no longer depends on re and
+ipaddress module for wildcard and IP addresses. Error reporting for invalid
+wildcards has been improved.
+
+..
+
+.. bpo: 32394
+.. date: 2018-02-10-13-51-56
+.. nonce: dFM9SI
+.. section: Library
+
+socket: Remove TCP_FASTOPEN,TCP_KEEPCNT,TCP_KEEPIDLE,TCP_KEEPINTVL flags on
+older version Windows during run-time.
+
+..
+
+.. bpo: 31787
+.. date: 2018-02-09-21-41-56
+.. nonce: owSZ2t
+.. section: Library
+
+Fixed refleaks of ``__init__()`` methods in various modules. (Contributed by
+Oren Milman)
+
+..
+
+.. bpo: 30157
+.. date: 2018-02-09-14-44-43
+.. nonce: lEiiAK
+.. section: Library
+
+Fixed guessing quote and delimiter in csv.Sniffer.sniff() when only the last
+field is quoted.  Patch by Jake Davis.
+
+..
+
+.. bpo: 32792
+.. date: 2018-02-08-00-47-07
+.. nonce: NtyDb4
+.. section: Library
+
+collections.ChainMap() preserves the order of the underlying mappings.
+
+..
+
+.. bpo: 32775
+.. date: 2018-02-07-19-12-10
+.. nonce: -T77_c
+.. section: Library
+
+:func:`fnmatch.translate()` no longer produces patterns which contain set
+operations. Sets starting with '[' or containing '--', '&&', '~~' or '||'
+will be interpreted differently in regular expressions in future versions.
+Currently they emit warnings. fnmatch.translate() now avoids producing
+patterns containing such sets by accident.
+
+..
+
+.. bpo: 32622
+.. date: 2018-02-06-17-58-15
+.. nonce: AE0Jz7
+.. section: Library
+
+Implement native fast sendfile for Windows proactor event loop.
+
+..
+
+.. bpo: 32777
+.. date: 2018-02-05-21-28-28
+.. nonce: C-wIXF
+.. section: Library
+
+Fix a rare but potential pre-exec child process deadlock in subprocess on
+POSIX systems when marking file descriptors inheritable on exec in the child
+process.  This bug appears to have been introduced in 3.4.
+
+..
+
+.. bpo: 32647
+.. date: 2018-02-05-13-31-42
+.. nonce: ktmfR_
+.. section: Library
+
+The ctypes module used to depend on indirect linking for dlopen. The shared
+extension is now explicitly linked against libdl on platforms with dl.
+
+..
+
+.. bpo: 32741
+.. date: 2018-02-01-17-54-08
+.. nonce: KUvOPL
+.. section: Library
+
+Implement ``asyncio.TimerHandle.when()`` method.
+
+..
+
+.. bpo: 32691
+.. date: 2018-02-01-15-53-35
+.. nonce: VLWVTq
+.. section: Library
+
+Use mod_spec.parent when running modules with pdb
+
+..
+
+.. bpo: 32734
+.. date: 2018-02-01-01-34-47
+.. nonce: gCV9AD
+.. section: Library
+
+Fixed ``asyncio.Lock()`` safety issue which allowed acquiring and locking
+the same lock multiple times, without it being free. Patch by Bar Harel.
+
+..
+
+.. bpo: 32727
+.. date: 2018-01-30-17-46-18
+.. nonce: aHVsRC
+.. section: Library
+
+Do not include name field in SMTP envelope from address. Patch by Stéphane
+Wirtel
+
+..
+
+.. bpo: 31453
+.. date: 2018-01-21-15-01-50
+.. nonce: cZiZBe
+.. section: Library
+
+Add TLSVersion constants and SSLContext.maximum_version / minimum_version
+attributes. The new API wraps OpenSSL 1.1
+https://www.openssl.org/docs/man1.1.0/ssl/SSL_CTX_set_min_proto_version.html
+feature.
+
+..
+
+.. bpo: 24334
+.. date: 2018-01-20-23-17-25
+.. nonce: GZuQLv
+.. section: Library
+
+Internal implementation details of ssl module were cleaned up. The SSLSocket
+has one less layer of indirection. Owner and session information are now
+handled by the SSLSocket and SSLObject constructor. Channel binding
+implementation has been simplified.
+
+..
+
+.. bpo: 31848
+.. date: 2018-01-18-23-34-17
+.. nonce: M2cldy
+.. section: Library
+
+Fix the error handling in Aifc_read.initfp() when the SSND chunk is not
+found. Patch by Zackery Spytz.
+
+..
+
+.. bpo: 32585
+.. date: 2018-01-18-13-09-00
+.. nonce: qpeijr
+.. section: Library
+
+Add Ttk spinbox widget to :mod:`tkinter.ttk`.  Patch by Alan D Moore.
+
+..
+
+.. bpo: 32221
+.. date: 2017-12-06-10-10-10
+.. nonce: ideco_
+.. section: Library
+
+Various functions returning tuple containig IPv6 addresses now omit
+``%scope`` part since the same information is already encoded in *scopeid*
+tuple item. Especially this speeds up :func:`socket.recvfrom` when it
+receives multicast packet since useless resolving of network interface name
+is omitted.
+
+..
+
+.. bpo: 30693
+.. date: 2017-11-27-15-09-49
+.. nonce: yC4mJ8
+.. section: Library
+
+The TarFile class now recurses directories in a reproducible way.
+
+..
+
+.. bpo: 30693
+.. date: 2017-11-27-15-09-49
+.. nonce: yC4mJ7
+.. section: Library
+
+The ZipFile class now recurses directories in a reproducible way.
+
+..
+
+.. bpo: 28124
+.. date: 2018-02-25-16-33-35
+.. nonce: _uzkgq
+.. section: Documentation
+
+The ssl module function ssl.wrap_socket() has been de-emphasized and
+deprecated in favor of the more secure and efficient
+SSLContext.wrap_socket() method.
+
+..
+
+.. bpo: 17232
+.. date: 2018-02-23-12-48-03
+.. nonce: tmuTKL
+.. section: Documentation
+
+Clarify docs for -O and -OO.  Patch by Terry Reedy.
+
+..
+
+.. bpo: 32436
+.. date: 2018-02-14-11-10-41
+.. nonce: TTJ2jb
+.. section: Documentation
+
+Add documentation for the contextvars module (PEP 567).
+
+..
+
+.. bpo: 32800
+.. date: 2018-02-10-15-16-04
+.. nonce: FyrqCk
+.. section: Documentation
+
+Update link to w3c doc for xml default namespaces.
+
+..
+
+.. bpo: 11015
+.. date: 2018-02-10-12-48-38
+.. nonce: -gUf34
+.. section: Documentation
+
+Update :mod:`test.support` documentation.
+
+..
+
+.. bpo: 8722
+.. date: 2018-02-03-06-11-37
+.. nonce: MPyVyj
+.. section: Documentation
+
+Document :meth:`__getattr__` behavior when property :meth:`get` method
+raises :exc:`AttributeError`.
+
+..
+
+.. bpo: 32614
+.. date: 2018-02-02-07-41-57
+.. nonce: LSqzGw
+.. section: Documentation
+
+Modify RE examples in documentation to use raw strings to prevent
+:exc:`DeprecationWarning` and add text to REGEX HOWTO to highlight the
+deprecation.
+
+..
+
+.. bpo: 31972
+.. date: 2018-01-25-14-23-12
+.. nonce: w1m_8r
+.. section: Documentation
+
+Improve docstrings for `pathlib.PurePath` subclasses.
+
+..
+
+.. bpo: 31809
+.. date: 2017-10-18-18-07-45
+.. nonce: KlQrkE
+.. section: Tests
+
+Add tests to verify connection with secp ECDH curves.
+
+..
+
+.. bpo: 32898
+.. date: 2018-02-21-12-46-00
+.. nonce: M15bZh
+.. section: Build
+
+Fix the python debug build when using COUNT_ALLOCS.
+
+..
+
+.. bpo: 32901
+.. date: 2018-02-23-00-47-13
+.. nonce: mGKz5_
+.. section: Windows
+
+Update Tcl and Tk versions to 8.6.8
+
+..
+
+.. bpo: 31966
+.. date: 2018-02-19-13-54-42
+.. nonce: _Q3HPb
+.. section: Windows
+
+Fixed WindowsConsoleIO.write() for writing empty data.
+
+..
+
+.. bpo: 32409
+.. date: 2018-02-19-10-00-57
+.. nonce: nocuDg
+.. section: Windows
+
+Ensures activate.bat can handle Unicode contents.
+
+..
+
+.. bpo: 32457
+.. date: 2018-02-19-08-54-06
+.. nonce: vVP0Iz
+.. section: Windows
+
+Improves handling of denormalized executable path when launching Python.
+
+..
+
+.. bpo: 32370
+.. date: 2018-02-10-15-38-19
+.. nonce: kcKuct
+.. section: Windows
+
+Use the correct encoding for ipconfig output in the uuid module. Patch by
+Segev Finer.
+
+..
+
+.. bpo: 29248
+.. date: 2018-02-07-17-50-48
+.. nonce: Xzwj-6
+.. section: Windows
+
+Fix :func:`os.readlink` on Windows, which was mistakenly treating the
+``PrintNameOffset`` field of the reparse data buffer as a number of
+characters instead of bytes. Patch by Craig Holmquist and SSE4.
+
+..
+
+.. bpo: 32901
+.. date: 2018-02-27-17-33-15
+.. nonce: hQu0w3
+.. section: macOS
+
+Update macOS 10.9+ installer to Tcl/Tk 8.6.8.
+
+..
+
+.. bpo: 32916
+.. date: 2018-02-23-07-32-36
+.. nonce: 4MsQ5F
+.. section: IDLE
+
+Change ``str`` to ``code`` in pyparse.
+
+..
+
+.. bpo: 32905
+.. date: 2018-02-22-00-09-27
+.. nonce: VlXj0x
+.. section: IDLE
+
+Remove unused code in pyparse module.
+
+..
+
+.. bpo: 32874
+.. date: 2018-02-19-10-56-41
+.. nonce: 6pZ9Gv
+.. section: IDLE
+
+Add tests for pyparse.
+
+..
+
+.. bpo: 32837
+.. date: 2018-02-12-17-22-48
+.. nonce: -33QPl
+.. section: IDLE
+
+Using the system and place-dependent default encoding for open() is a bad
+idea for IDLE's system and location-independent files.
+
+..
+
+.. bpo: 32826
+.. date: 2018-02-12-11-05-22
+.. nonce: IxNZrk
+.. section: IDLE
+
+Add "encoding=utf-8" to open() in IDLE's test_help_about. GUI test
+test_file_buttons() only looks at initial ascii-only lines, but failed on
+systems where open() defaults to 'ascii' because readline() internally reads
+and decodes far enough ahead to encounter a non-ascii character in
+CREDITS.txt.
+
+..
+
+.. bpo: 32765
+.. date: 2018-02-04-17-52-54
+.. nonce: qm0eCu
+.. section: IDLE
+
+Update configdialog General tab docstring to add new widgets to the widget
+list.
+
+..
+
+.. bpo: 32222
+.. date: 2017-12-07-20-51-20
+.. nonce: hPBcGT
+.. section: Tools/Demos
+
+Fix pygettext not extracting docstrings for functions with type annotated
+arguments. Patch by Toby Harradine.
diff --git a/Misc/NEWS.d/3.7.0b3.rst b/Misc/NEWS.d/3.7.0b3.rst
new file mode 100644
index 00000000000..fc5492c36c4
--- /dev/null
+++ b/Misc/NEWS.d/3.7.0b3.rst
@@ -0,0 +1,541 @@
+.. bpo: 33136
+.. date: 2018-03-25-12-05-43
+.. nonce: TzSN4x
+.. release date: 2018-03-29
+.. section: Security
+
+Harden ssl module against LibreSSL CVE-2018-8970.
+X509_VERIFY_PARAM_set1_host() is called with an explicit namelen. A new test
+ensures that NULL bytes are not allowed.
+
+..
+
+.. bpo: 33001
+.. date: 2018-03-05-10-09-51
+.. nonce: elj4Aa
+.. section: Security
+
+Minimal fix to prevent buffer overrun in os.symlink on Windows
+
+..
+
+.. bpo: 32981
+.. date: 2018-03-02-10-24-52
+.. nonce: O_qDyj
+.. section: Security
+
+Regexes in difflib and poplib were vulnerable to catastrophic backtracking.
+These regexes formed potential DOS vectors (REDOS). They have been
+refactored. This resolves CVE-2018-1060 and CVE-2018-1061. Patch by Jamie
+Davis.
+
+..
+
+.. bpo: 33053
+.. date: 2018-03-25-19-49-06
+.. nonce: V3xlsH
+.. section: Core and Builtins
+
+When using the -m switch, sys.path[0] is now explicitly expanded as the
+*starting* working directory, rather than being left as the empty path
+(which allows imports from the current working directory at the time of the
+import)
+
+..
+
+.. bpo: 33018
+.. date: 2018-03-22-23-09-06
+.. nonce: 0ncEJV
+.. section: Core and Builtins
+
+Improve consistency of errors raised by ``issubclass()`` when called with a
+non-class and an abstract base class as the first and second arguments,
+respectively. Patch by Josh Bronson.
+
+..
+
+.. bpo: 33041
+.. date: 2018-03-18-13-56-14
+.. nonce: XwPhI2
+.. section: Core and Builtins
+
+Fixed jumping when the function contains an ``async for`` loop.
+
+..
+
+.. bpo: 33026
+.. date: 2018-03-08-09-48-38
+.. nonce: QZA3Ba
+.. section: Core and Builtins
+
+Fixed jumping out of "with" block by setting f_lineno.
+
+..
+
+.. bpo: 33005
+.. date: 2018-03-06-12-19-19
+.. nonce: LP-V2U
+.. section: Core and Builtins
+
+Fix a crash on fork when using a custom memory allocator (ex: using
+PYTHONMALLOC env var). _PyGILState_Reinit() and _PyInterpreterState_Enable()
+now use the default RAW memory allocator to allocate a new interpreters
+mutex on fork.
+
+..
+
+.. bpo: 17288
+.. date: 2018-02-27-13-36-21
+.. nonce: Gdj24S
+.. section: Core and Builtins
+
+Prevent jumps from 'return' and 'exception' trace events.
+
+..
+
+.. bpo: 32836
+.. date: 2018-02-14-12-35-47
+.. nonce: bThJnx
+.. section: Core and Builtins
+
+Don't use temporary variables in cases of list/dict/set comprehensions
+
+..
+
+.. bpo: 33141
+.. date: 2018-03-26-12-33-13
+.. nonce: 23wlxf
+.. section: Library
+
+Have Field objects pass through __set_name__ to their default values, if
+they have their own __set_name__.
+
+..
+
+.. bpo: 33096
+.. date: 2018-03-25-13-18-16
+.. nonce: ofdbe7
+.. section: Library
+
+Allow ttk.Treeview.insert to insert iid that has a false boolean value. Note
+iid=0 and iid=False would be same. Patch by Garvit Khatri.
+
+..
+
+.. bpo: 32873
+.. date: 2018-03-24-19-54-48
+.. nonce: cHyoAm
+.. section: Library
+
+Treat type variables and special typing forms as immutable by copy and
+pickle.  This fixes several minor issues and inconsistencies, and improves
+backwards compatibility with Python 3.6.
+
+..
+
+.. bpo: 33134
+.. date: 2018-03-24-19-34-26
+.. nonce: hbVeIX
+.. section: Library
+
+When computing dataclass's __hash__, use the lookup table to contain the
+function which returns the __hash__ value.  This is an improvement over
+looking up a string, and then testing that string to see what to do.
+
+..
+
+.. bpo: 33127
+.. date: 2018-03-24-15-08-24
+.. nonce: olJmHv
+.. section: Library
+
+The ssl module now compiles with LibreSSL 2.7.1.
+
+..
+
+.. bpo: 32505
+.. date: 2018-03-22-16-05-56
+.. nonce: YK1N8v
+.. section: Library
+
+Raise TypeError if a member variable of a dataclass is of type Field, but
+doesn't have a type annotation.
+
+..
+
+.. bpo: 33078
+.. date: 2018-03-21-17-59-39
+.. nonce: PQOniT
+.. section: Library
+
+Fix the failure on OSX caused by the tests relying on sem_getvalue
+
+..
+
+.. bpo: 33116
+.. date: 2018-03-21-16-52-26
+.. nonce: Tvzerj
+.. section: Library
+
+Add 'Field' to dataclasses.__all__.
+
+..
+
+.. bpo: 32896
+.. date: 2018-03-20-20-53-21
+.. nonce: ewW3Ln
+.. section: Library
+
+Fix an error where subclassing a dataclass with a field that uses a
+default_factory would generate an incorrect class.
+
+..
+
+.. bpo: 33100
+.. date: 2018-03-19-20-47-00
+.. nonce: chyIO4
+.. section: Library
+
+Dataclasses: If a field has a default value that's a MemberDescriptorType,
+then it's from that field being in __slots__, not an actual default value.
+
+..
+
+.. bpo: 32953
+.. date: 2018-03-18-17-38-48
+.. nonce: t8WAWN
+.. section: Library
+
+If a non-dataclass inherits from a frozen dataclass, allow attributes to be
+added to the derived class.  Only attributes from the frozen dataclass
+cannot be assigned to.  Require all dataclasses in a hierarchy to be either
+all frozen or all non-frozen.
+
+..
+
+.. bpo: 33061
+.. date: 2018-03-16-16-07-33
+.. nonce: TRTTek
+.. section: Library
+
+Add missing ``NoReturn`` to ``__all__`` in typing.py
+
+..
+
+.. bpo: 33078
+.. date: 2018-03-15-07-38-00
+.. nonce: RmjUF5
+.. section: Library
+
+Fix the size handling in multiprocessing.Queue when a pickling error occurs.
+
+..
+
+.. bpo: 33064
+.. date: 2018-03-12-19-58-25
+.. nonce: LO2KIY
+.. section: Library
+
+lib2to3 now properly supports trailing commas after ``*args`` and
+``**kwargs`` in function signatures.
+
+..
+
+.. bpo: 33056
+.. date: 2018-03-12-16-40-00
+.. nonce: lNN9Eh
+.. section: Library
+
+FIX properly close leaking fds in concurrent.futures.ProcessPoolExecutor.
+
+..
+
+.. bpo: 33021
+.. date: 2018-03-12-00-27-56
+.. nonce: m19B9T
+.. section: Library
+
+Release the GIL during fstat() calls, avoiding hang of all threads when
+calling mmap.mmap(), os.urandom(), and random.seed().  Patch by Nir Soffer.
+
+..
+
+.. bpo: 31804
+.. date: 2018-03-11-19-03-52
+.. nonce: i8KUMp
+.. section: Library
+
+Avoid failing in multiprocessing.Process if the standard streams are closed
+or None at exit.
+
+..
+
+.. bpo: 33037
+.. date: 2018-03-09-23-07-07
+.. nonce: nAJ3at
+.. section: Library
+
+Skip sending/receiving data after SSL transport closing.
+
+..
+
+.. bpo: 27683
+.. date: 2018-03-07-22-28-17
+.. nonce: 572Rv4
+.. section: Library
+
+Fix a regression in :mod:`ipaddress` that result of :meth:`hosts` is empty
+when the network is constructed by a tuple containing an integer mask and
+only 1 bit left for addresses.
+
+..
+
+.. bpo: 32999
+.. date: 2018-03-06-20-30-20
+.. nonce: lgFXWl
+.. section: Library
+
+Fix C implemetation of ``ABC.__subclasscheck__(cls, subclass)`` crashed when
+``subclass`` is not a type object.
+
+..
+
+.. bpo: 33009
+.. date: 2018-03-06-11-54-59
+.. nonce: -Ekysb
+.. section: Library
+
+Fix inspect.signature() for single-parameter partialmethods.
+
+..
+
+.. bpo: 32969
+.. date: 2018-03-06-00-19-41
+.. nonce: rGTKa0
+.. section: Library
+
+Expose several missing constants in zlib and fix corresponding
+documentation.
+
+..
+
+.. bpo: 32056
+.. date: 2018-03-01-17-49-56
+.. nonce: IlpfgE
+.. section: Library
+
+Improved exceptions raised for invalid number of channels and sample width
+when read an audio file in modules :mod:`aifc`, :mod:`wave` and
+:mod:`sunau`.
+
+..
+
+.. bpo: 32844
+.. date: 2018-02-28-13-08-00
+.. nonce: u8tnAe
+.. section: Library
+
+Fix wrong redirection of a low descriptor (0 or 1) to stderr in subprocess
+if another low descriptor is closed.
+
+..
+
+.. bpo: 32857
+.. date: 2018-02-16-14-37-14
+.. nonce: -XljAx
+.. section: Library
+
+In :mod:`tkinter`, ``after_cancel(None)`` now raises a :exc:`ValueError`
+instead of canceling the first scheduled function.  Patch by Cheryl Sabella.
+
+..
+
+.. bpo: 31639
+.. date: 2017-12-27-21-55-19
+.. nonce: l3avDJ
+.. section: Library
+
+http.server now exposes a ThreadedHTTPServer class and uses it when the
+module is run with ``-m`` to cope with web browsers pre-opening sockets.
+
+..
+
+.. bpo: 27645
+.. date: 2017-10-05-20-41-48
+.. nonce: 1Y_Wag
+.. section: Library
+
+:class:`sqlite3.Connection` now exposes a
+:class:`~sqlite3.Connection.backup` method, if the underlying SQLite library
+is at version 3.6.11 or higher.  Patch by Lele Gaifax.
+
+..
+
+.. bpo: 33126
+.. date: 2018-03-28-17-03-17
+.. nonce: 5UGkNv
+.. section: Documentation
+
+Document PyBuffer_ToContiguous().
+
+..
+
+.. bpo: 27212
+.. date: 2018-03-22-19-23-04
+.. nonce: wrE5KR
+.. section: Documentation
+
+Modify documentation for the :func:`islice` recipe to consume initial values
+up to the start index.
+
+..
+
+.. bpo: 28247
+.. date: 2018-03-20-20-11-05
+.. nonce: -V-WS-
+.. section: Documentation
+
+Update :mod:`zipapp` documentation to describe how to make standalone
+applications.
+
+..
+
+.. bpo: 18802
+.. date: 2018-03-11-18-53-47
+.. nonce: JhAqH3
+.. section: Documentation
+
+Documentation changes for ipaddress.  Patch by Jon Foster and Berker Peksag.
+
+..
+
+.. bpo: 27428
+.. date: 2018-03-11-00-16-56
+.. nonce: B7A8FT
+.. section: Documentation
+
+Update documentation to clarify that ``WindowsRegistryFinder`` implements
+``MetaPathFinder``. (Patch by Himanshu Lakhara)
+
+..
+
+.. bpo: 32872
+.. date: 2018-03-28-01-35-02
+.. nonce: J5NDUj
+.. section: Tests
+
+Avoid regrtest compatibility issue with namespace packages.
+
+..
+
+.. bpo: 32517
+.. date: 2018-03-09-07-05-12
+.. nonce: ugc1iW
+.. section: Tests
+
+Fix failing ``test_asyncio`` on macOS 10.12.2+ due to transport of
+``KqueueSelector`` loop was not being closed.
+
+..
+
+.. bpo: 19417
+.. date: 2018-01-08-13-33-47
+.. nonce: 2asoXy
+.. section: Tests
+
+Add test_bdb.py.
+
+..
+
+.. bpo: 33163
+.. date: 2018-03-28-04-15-03
+.. nonce: hfpWuU
+.. section: Build
+
+Upgrade pip to 9.0.3 and setuptools to v39.0.1.
+
+..
+
+.. bpo: 33016
+.. date: 2018-03-07-01-33-33
+.. nonce: Z_Med0
+.. section: Windows
+
+Fix potential use of uninitialized memory in nt._getfinalpathname
+
+..
+
+.. bpo: 32903
+.. date: 2018-02-28-11-03-24
+.. nonce: 1SXY4t
+.. section: Windows
+
+Fix a memory leak in os.chdir() on Windows if the current directory is set
+to a UNC path.
+
+..
+
+.. bpo: 32726
+.. date: 2018-03-29-06-56-12
+.. nonce: urS9uX
+.. section: macOS
+
+Build and link with private copy of Tcl/Tk 8.6 for the macOS 10.6+
+installer. The 10.9+ installer variant already does this.  This means that
+the Python 3.7 provided by the python.org macOS installers no longer need or
+use any external versions of Tcl/Tk, either system-provided or
+user-installed, such as ActiveTcl.
+
+..
+
+.. bpo: 32984
+.. date: 2018-03-05-01-29-05
+.. nonce: NGjgT4
+.. section: IDLE
+
+Set ``__file__`` while running a startup file.  Like Python, IDLE optionally
+runs one startup file in the Shell window before presenting the first
+interactive input prompt.  For IDLE, ``-s`` runs a file named in
+environmental variable  :envvar:`IDLESTARTUP` or  :envvar:`PYTHONSTARTUP`;
+``-r file`` runs ``file``.  Python sets ``__file__`` to the startup file
+name before running the file and unsets it before the first prompt.  IDLE
+now does the same when run normally, without the ``-n`` option.
+
+..
+
+.. bpo: 32940
+.. date: 2018-02-24-18-20-50
+.. nonce: ZaJ1Rf
+.. section: IDLE
+
+Simplify and rename StringTranslatePseudoMapping in pyparse.
+
+..
+
+.. bpo: 32885
+.. date: 2018-02-20-12-16-47
+.. nonce: dL5x7C
+.. section: Tools/Demos
+
+Add an ``-n`` flag for ``Tools/scripts/pathfix.py`` to disbale automatic
+backup creation (files with ``~`` suffix).
+
+..
+
+.. bpo: 33042
+.. date: 2018-03-20-21-43-09
+.. nonce: FPFp64
+.. section: C API
+
+Embedding applications may once again call PySys_ResetWarnOptions,
+PySys_AddWarnOption, and PySys_AddXOption prior to calling Py_Initialize.
+
+..
+
+.. bpo: 32374
+.. date: 2018-01-09-17-03-54
+.. nonce: SwwLoz
+.. section: C API
+
+Document that m_traverse for multi-phase initialized modules can be called
+with m_state=NULL, and add a sanity check
diff --git a/Misc/NEWS.d/3.7.0b4.rst b/Misc/NEWS.d/3.7.0b4.rst
new file mode 100644
index 00000000000..a6cae281918
--- /dev/null
+++ b/Misc/NEWS.d/3.7.0b4.rst
@@ -0,0 +1,466 @@
+.. bpo: 33363
+.. date: 2018-04-26-22-48-28
+.. nonce: 8RCnN2
+.. release date: 2018-05-02
+.. section: Core and Builtins
+
+Raise a SyntaxError for ``async with`` and ``async for`` statements outside
+of async functions.
+
+..
+
+.. bpo: 33128
+.. date: 2018-04-24-22-31-04
+.. nonce: g2yLuf
+.. section: Core and Builtins
+
+Fix a bug that causes PathFinder to appear twice on sys.meta_path. Patch by
+Pablo Galindo Salgado.
+
+..
+
+.. bpo: 33312
+.. date: 2018-04-19-08-30-07
+.. nonce: mDe2iL
+.. section: Core and Builtins
+
+Fixed clang ubsan (undefined behavior sanitizer) warnings in dictobject.c by
+adjusting how the internal struct _dictkeysobject shared keys structure is
+declared.
+
+..
+
+.. bpo: 33231
+.. date: 2018-04-05-22-20-44
+.. nonce: 3Jmo0q
+.. section: Core and Builtins
+
+Fix potential memory leak in ``normalizestring()``.
+
+..
+
+.. bpo: 33205
+.. date: 2018-04-03-00-58-41
+.. nonce: lk2F3r
+.. section: Core and Builtins
+
+Change dict growth function from
+``round_up_to_power_2(used*2+hashtable_size/2)`` to
+``round_up_to_power_2(used*3)``.  Previously, dict is shrinked only when
+``used == 0``. Now dict has more chance to be shrinked.
+
+..
+
+.. bpo: 29922
+.. date: 2018-04-03-00-30-25
+.. nonce: CdLuMl
+.. section: Core and Builtins
+
+Improved error messages in 'async with' when ``__aenter__()`` or
+``__aexit__()`` return non-awaitable object.
+
+..
+
+.. bpo: 33199
+.. date: 2018-04-02-09-32-40
+.. nonce: TPnxQu
+.. section: Core and Builtins
+
+Fix ``ma_version_tag`` in dict implementation is uninitialized when copying
+from key-sharing dict.
+
+..
+
+.. bpo: 33281
+.. date: 2018-05-01-22-35-50
+.. nonce: d4jOt4
+.. section: Library
+
+Fix ctypes.util.find_library regression on macOS.
+
+..
+
+.. bpo: 33383
+.. date: 2018-04-29-11-15-38
+.. nonce: g32YWn
+.. section: Library
+
+Fixed crash in the get() method of the :mod:`dbm.ndbm` database object when
+it is called with a single argument.
+
+..
+
+.. bpo: 33329
+.. date: 2018-04-23-13-21-39
+.. nonce: lQ-Eod
+.. section: Library
+
+Fix multiprocessing regression on newer glibcs
+
+..
+
+.. bpo: 991266
+.. date: 2018-04-21-00-24-08
+.. nonce: h93TP_
+.. section: Library
+
+Fix quoting of the ``Comment`` attribute of
+:class:`http.cookies.SimpleCookie`.
+
+..
+
+.. bpo: 33131
+.. date: 2018-04-20-10-43-17
+.. nonce: L2E977
+.. section: Library
+
+Upgrade bundled version of pip to 10.0.1.
+
+..
+
+.. bpo: 33308
+.. date: 2018-04-18-19-12-25
+.. nonce: fW75xi
+.. section: Library
+
+Fixed a crash in the :mod:`parser` module when converting an ST object to a
+tree of tuples or lists with ``line_info=False`` and ``col_info=True``.
+
+..
+
+.. bpo: 33266
+.. date: 2018-04-16-15-59-21
+.. nonce: w2PAm-
+.. section: Library
+
+lib2to3 now recognizes ``rf'...'`` strings.
+
+..
+
+.. bpo: 11594
+.. date: 2018-04-16-08-42-03
+.. nonce: QLo4vv
+.. section: Library
+
+Ensure line-endings are respected when using lib2to3.
+
+..
+
+.. bpo: 33254
+.. date: 2018-04-13-15-14-47
+.. nonce: DS4KFK
+.. section: Library
+
+Have :func:`importlib.resources.contents` and
+:meth:`importlib.abc.ResourceReader.contents` return an :term:`iterable`
+instead of an :term:`iterator`.
+
+..
+
+.. bpo: 33256
+.. date: 2018-04-10-20-57-14
+.. nonce: ndHkqu
+.. section: Library
+
+Fix display of ``<module>`` call in the html produced by ``cgitb.html()``.
+Patch by Stéphane Blondon.
+
+..
+
+.. bpo: 33185
+.. date: 2018-04-08-22-54-07
+.. nonce: Id-Ba9
+.. section: Library
+
+Fixed regression when running pydoc with the :option:`-m` switch. (The
+regression was introduced in 3.7.0b3 by the resolution of :issue:`33053`)
+
+This fix also changed pydoc to add ``os.getcwd()`` to :data:`sys.path` when
+necessary, rather than adding ``"."``.
+
+..
+
+.. bpo: 33169
+.. date: 2018-04-06-14-56-26
+.. nonce: ByhDqb
+.. section: Library
+
+Delete entries of ``None`` in :data:`sys.path_importer_cache` when
+:meth:`importlib.machinery.invalidate_caches` is called.
+
+..
+
+.. bpo: 33217
+.. date: 2018-04-05-13-36-09
+.. nonce: FfOKDI
+.. section: Library
+
+Deprecate looking up non-Enum objects in Enum classes and Enum members (will
+raise :exc:`TypeError` in 3.8+).
+
+..
+
+.. bpo: 33203
+.. date: 2018-04-05-11-09-45
+.. nonce: Hje9Py
+.. section: Library
+
+``random.Random.choice()`` now raises ``IndexError`` for empty sequences
+consistently even when called from subclasses without a ``getrandbits()``
+implementation.
+
+..
+
+.. bpo: 33224
+.. date: 2018-04-04-23-41-30
+.. nonce: pyR0jB
+.. section: Library
+
+Update difflib.mdiff() for PEP 479.  Convert an uncaught StopIteration in a
+generator into a return-statement.
+
+..
+
+.. bpo: 33209
+.. date: 2018-04-03-10-37-13
+.. nonce: 9sGWE_
+.. section: Library
+
+End framing at the end of C implementation of :func:`pickle.Pickler.dump`.
+
+..
+
+.. bpo: 20104
+.. date: 2018-04-01-19-21-04
+.. nonce: -AKcGa
+.. section: Library
+
+Improved error handling and fixed a reference leak in
+:func:`os.posix_spawn()`.
+
+..
+
+.. bpo: 33175
+.. date: 2018-03-29-04-32-25
+.. nonce: _zs1yM
+.. section: Library
+
+In dataclasses, Field.__set_name__ now looks up the __set_name__ special
+method on the class, not the instance, of the default value.
+
+..
+
+.. bpo: 33097
+.. date: 2018-03-18-16-48-23
+.. nonce: Yl4gI2
+.. section: Library
+
+Raise RuntimeError when ``executor.submit`` is called during interpreter
+shutdown.
+
+..
+
+.. bpo: 31908
+.. date: 2017-10-31
+.. nonce: g4xh8x
+.. section: Library
+
+Fix output of cover files for ``trace`` module command-line tool. Previously
+emitted cover files only when ``--missing`` option was used. Patch by
+Michael Selik.
+
+..
+
+.. bpo: 33378
+.. date: 2018-04-29-04-02-18
+.. nonce: -anAHN
+.. section: Documentation
+
+Add Korean language switcher for https://docs.python.org/3/
+
+..
+
+.. bpo: 33276
+.. date: 2018-04-20-14-09-36
+.. nonce: rA1z_3
+.. section: Documentation
+
+Clarify that the ``__path__`` attribute on modules cannot be just any value.
+
+..
+
+.. bpo: 33201
+.. date: 2018-04-01-21-03-41
+.. nonce: aa8Lkl
+.. section: Documentation
+
+Modernize documentation for writing C extension types.
+
+..
+
+.. bpo: 33195
+.. date: 2018-04-01-14-30-36
+.. nonce: dRS-XX
+.. section: Documentation
+
+Deprecate ``Py_UNICODE`` usage in ``c-api/arg`` document. ``Py_UNICODE``
+related APIs are deprecated since Python 3.3, but it is missed in the
+document.
+
+..
+
+.. bpo: 8243
+.. date: 2018-01-13-20-30-53
+.. nonce: s98r28
+.. section: Documentation
+
+Add a note about curses.addch and curses.addstr exception behavior when
+writing outside a window, or pad.
+
+..
+
+.. bpo: 32337
+.. date: 2017-12-22-17-29-37
+.. nonce: eZe-ID
+.. section: Documentation
+
+Update documentation related with ``dict`` order.
+
+..
+
+.. bpo: 33358
+.. date: 2018-04-27-11-46-35
+.. nonce: _OcR59
+.. section: Tests
+
+Fix ``test_embed.test_pre_initialization_sys_options()`` when the
+interpreter is built with ``--enable-shared``.
+
+..
+
+.. bpo: 33394
+.. date: 2018-04-30-17-36-46
+.. nonce: _Vdi4t
+.. section: Build
+
+Enable the verbose build for extension modules, when GNU make is passed
+macros on the command line.
+
+..
+
+.. bpo: 33393
+.. date: 2018-04-30-17-19-37
+.. nonce: HkVCqI
+.. section: Build
+
+Update config.guess and config.sub files.
+
+..
+
+.. bpo: 33377
+.. date: 2018-04-30-16-53-00
+.. nonce: QBh6vP
+.. section: Build
+
+Add new triplets for mips r6 and riscv variants (used in extension
+suffixes).
+
+..
+
+.. bpo: 32232
+.. date: 2018-04-17-00-38-19
+.. nonce: o7G_UO
+.. section: Build
+
+By default, modules configured in `Modules/Setup` are no longer built with
+`-DPy_BUILD_CORE`. Instead, modules that specifically need that preprocessor
+definition include it in their individual entries.
+
+..
+
+.. bpo: 33182
+.. date: 2018-03-30-14-55-48
+.. nonce: CePczb
+.. section: Build
+
+The embedding tests can once again be built with clang 6.0
+
+..
+
+.. bpo: 33184
+.. date: 2018-04-13-11-28-55
+.. nonce: 7YhqQE
+.. section: Windows
+
+Update Windows installer to use OpenSSL 1.1.0h.
+
+..
+
+.. bpo: 33184
+.. date: 2018-04-07-00-51-34
+.. nonce: 3j208P
+.. section: macOS
+
+Update macOS installer build to use OpenSSL 1.1.0h.
+
+..
+
+.. bpo: 21474
+.. date: 2018-04-29-16-13-02
+.. nonce: bglg-F
+.. section: IDLE
+
+Update word/identifier definition from ascii to unicode. In text and entry
+boxes, this affects selection by double-click, movement left/right by
+control-left/right, and deletion left/right by control-BACKSPACE/DEL.
+
+..
+
+.. bpo: 33204
+.. date: 2018-04-02-00-28-13
+.. nonce: NBsuIv
+.. section: IDLE
+
+IDLE: consistently color invalid string prefixes. A 'u' string prefix cannot
+be paired with either 'r' or 'f'. Consistently color as much of the prefix,
+starting at the right, as is valid. Revise and extend colorizer test.
+
+..
+
+.. bpo: 33189
+.. date: 2018-04-03-18-10-00
+.. nonce: QrXR00
+.. section: Tools/Demos
+
+:program:`pygettext.py` now recognizes only literal strings as docstrings
+and translatable strings, and rejects bytes literals and f-string
+expressions.
+
+..
+
+.. bpo: 31920
+.. date: 2018-03-26-18-54-24
+.. nonce: u_WKsT
+.. section: Tools/Demos
+
+Fixed handling directories as arguments in the ``pygettext`` script. Based
+on patch by Oleg Krasnikov.
+
+..
+
+.. bpo: 29673
+.. date: 2018-03-16-17-25-05
+.. nonce: m8QtaW
+.. section: Tools/Demos
+
+Fix pystackv and pystack gdbinit macros.
+
+..
+
+.. bpo: 31583
+.. date: 2017-09-26-10-11-21
+.. nonce: TM90_H
+.. section: Tools/Demos
+
+Fix 2to3 for using with --add-suffix option but without --output-dir option
+for relative path to files in current directory.
diff --git a/Misc/NEWS.d/3.7.0b5.rst b/Misc/NEWS.d/3.7.0b5.rst
new file mode 100644
index 00000000000..b420496cedd
--- /dev/null
+++ b/Misc/NEWS.d/3.7.0b5.rst
@@ -0,0 +1,592 @@
+.. bpo: 33622
+.. date: 2018-05-23-20-46-14
+.. nonce: xPucO9
+.. release date: 2018-05-30
+.. section: Core and Builtins
+
+Fixed a leak when the garbage collector fails to add an object with the
+``__del__`` method or referenced by it into the :data:`gc.garbage` list.
+:c:func:`PyGC_Collect` can now be called when an exception is set and
+preserves it.
+
+..
+
+.. bpo: 33509
+.. date: 2018-05-14-17-31-02
+.. nonce: pIUfTd
+.. section: Core and Builtins
+
+Fix module_globals parameter of warnings.warn_explicit(): don't crash if
+module_globals is not a dict.
+
+..
+
+.. bpo: 20104
+.. date: 2018-05-14-11-34-55
+.. nonce: kqBNzv
+.. section: Core and Builtins
+
+The new `os.posix_spawn` added in 3.7.0b1 was removed as we are still
+working on what the API should look like.  Expect this in 3.8 instead.
+
+..
+
+.. bpo: 33475
+.. date: 2018-05-13-01-26-18
+.. nonce: rI0y1U
+.. section: Core and Builtins
+
+Fixed miscellaneous bugs in converting annotations to strings and optimized
+parentheses in the string representation.
+
+..
+
+.. bpo: 33391
+.. date: 2018-05-02-08-36-03
+.. nonce: z4a7rb
+.. section: Core and Builtins
+
+Fix a leak in set_symmetric_difference().
+
+..
+
+.. bpo: 28055
+.. date: 2018-04-25-20-44-42
+.. nonce: f49kfC
+.. section: Core and Builtins
+
+Fix unaligned accesses in siphash24(). Patch by Rolf Eike Beer.
+
+..
+
+.. bpo: 32911
+.. date: 2018-02-27-20-57-00
+.. nonce: cmKfco
+.. section: Core and Builtins
+
+Due to unexpected compatibility issues discovered during downstream beta
+testing, reverted :issue:`29463`. ``docstring`` field is removed from
+Module, ClassDef, FunctionDef, and AsyncFunctionDef ast nodes which was
+added in 3.7a1.  Docstring expression is restored as a first statement in
+their body. Based on patch by Inada Naoki.
+
+..
+
+.. bpo: 21983
+.. date: 2017-10-02-21-02-14
+.. nonce: UoC319
+.. section: Core and Builtins
+
+Fix a crash in `ctypes.cast()` in case the type argument is a ctypes
+structured data type. Patch by Eryk Sun and Oren Milman.
+
+..
+
+.. bpo: 32751
+.. date: 2018-05-29-15-32-18
+.. nonce: oBTqr7
+.. section: Library
+
+When cancelling the task due to a timeout, :meth:`asyncio.wait_for` will now
+wait until the cancellation is complete.
+
+..
+
+.. bpo: 32684
+.. date: 2018-05-29-12-51-18
+.. nonce: ZEIism
+.. section: Library
+
+Fix gather to propagate cancellation of itself even with return_exceptions.
+
+..
+
+.. bpo: 33654
+.. date: 2018-05-29-01-13-39
+.. nonce: sa81Si
+.. section: Library
+
+Support protocol type switching in SSLTransport.set_protocol().
+
+..
+
+.. bpo: 33674
+.. date: 2018-05-29-00-37-56
+.. nonce: 2IkGhL
+.. section: Library
+
+Pause the transport as early as possible to further reduce the risk of
+data_received() being called before connection_made().
+
+..
+
+.. bpo: 33674
+.. date: 2018-05-28-22-49-59
+.. nonce: 6LFFj7
+.. section: Library
+
+Fix a race condition in SSLProtocol.connection_made() of asyncio.sslproto:
+start immediately the handshake instead of using call_soon(). Previously,
+data_received() could be called before the handshake started, causing the
+handshake to hang or fail.
+
+..
+
+.. bpo: 31647
+.. date: 2018-05-28-18-40-26
+.. nonce: s4Fad3
+.. section: Library
+
+Fixed bug where calling write_eof() on a _SelectorSocketTransport after it's
+already closed raises AttributeError.
+
+..
+
+.. bpo: 32610
+.. date: 2018-05-28-16-40-32
+.. nonce: KvUAsL
+.. section: Library
+
+Make asyncio.all_tasks() return only pending tasks.
+
+..
+
+.. bpo: 32410
+.. date: 2018-05-28-16-19-35
+.. nonce: Z1DZaF
+.. section: Library
+
+Avoid blocking on file IO in sendfile fallback code
+
+..
+
+.. bpo: 33469
+.. date: 2018-05-28-15-55-12
+.. nonce: hmXBpY
+.. section: Library
+
+Fix RuntimeError after closing loop that used run_in_executor
+
+..
+
+.. bpo: 33672
+.. date: 2018-05-28-12-29-54
+.. nonce: GM_Xm_
+.. section: Library
+
+Fix Task.__repr__ crash with Cython's bogus coroutines
+
+..
+
+.. bpo: 33654
+.. date: 2018-05-26-13-09-34
+.. nonce: IbYWxA
+.. section: Library
+
+Fix transport.set_protocol() to support switching between asyncio.Protocol
+and asyncio.BufferedProtocol.  Fix loop.start_tls() to work with
+asyncio.BufferedProtocols.
+
+..
+
+.. bpo: 33652
+.. date: 2018-05-26-10-13-59
+.. nonce: humFJ1
+.. section: Library
+
+Pickles of type variables and subscripted generics are now future-proof and
+compatible with older Python versions.
+
+..
+
+.. bpo: 32493
+.. date: 2018-05-24-17-41-36
+.. nonce: 5tAoAu
+.. section: Library
+
+Fixed :func:`uuid.uuid1` on FreeBSD.
+
+..
+
+.. bpo: 33618
+.. date: 2018-05-23-20-14-34
+.. nonce: xU39lr
+.. section: Library
+
+Finalize and document preliminary and experimental TLS 1.3 support with
+OpenSSL 1.1.1
+
+..
+
+.. bpo: 33623
+.. date: 2018-05-23-14-58-05
+.. nonce: wAw1cF
+.. section: Library
+
+Fix possible SIGSGV when asyncio.Future is created in __del__
+
+..
+
+.. bpo: 30877
+.. date: 2018-05-22-13-05-12
+.. nonce: JZEGjI
+.. section: Library
+
+Fixed a bug in the Python implementation of the JSON decoder that prevented
+the cache of parsed strings from clearing after finishing the decoding.
+Based on patch by c-fos.
+
+..
+
+.. bpo: 33570
+.. date: 2018-05-18-21-50-47
+.. nonce: 7CZy4t
+.. section: Library
+
+Change TLS 1.3 cipher suite settings for compatibility with OpenSSL
+1.1.1-pre6 and newer. OpenSSL 1.1.1 will have TLS 1.3 cipers enabled by
+default.
+
+..
+
+.. bpo: 28556
+.. date: 2018-05-17-22-53-08
+.. nonce: C6Hnd1
+.. section: Library
+
+Do not simplify arguments to `typing.Union`. Now `Union[Manager, Employee]`
+is not simplified to `Employee` at runtime. Such simplification previously
+caused several bugs and limited possibilities for introspection.
+
+..
+
+.. bpo: 33540
+.. date: 2018-05-16-18-10-38
+.. nonce: wy9LRV
+.. section: Library
+
+Add a new ``block_on_close`` class attribute to ``ForkingMixIn`` and
+``ThreadingMixIn`` classes of :mod:`socketserver`.
+
+..
+
+.. bpo: 33548
+.. date: 2018-05-16-17-05-48
+.. nonce: xWslmx
+.. section: Library
+
+tempfile._candidate_tempdir_list should consider common TEMP locations
+
+..
+
+.. bpo: 33109
+.. date: 2018-05-16-14-57-58
+.. nonce: nPLL_S
+.. section: Library
+
+argparse subparsers are once again not required by default, reverting the
+change in behavior introduced by bpo-26510 in 3.7.0a2.
+
+..
+
+.. bpo: 33536
+.. date: 2018-05-16-10-07-40
+.. nonce: _s0TE8
+.. section: Library
+
+dataclasses.make_dataclass now checks for invalid field names and duplicate
+fields. Also, added a check for invalid field specifications.
+
+..
+
+.. bpo: 33542
+.. date: 2018-05-16-09-30-27
+.. nonce: idNAcs
+.. section: Library
+
+Prevent ``uuid.get_node`` from using a DUID instead of a MAC on Windows.
+Patch by Zvi Effron
+
+..
+
+.. bpo: 26819
+.. date: 2018-05-16-05-24-43
+.. nonce: taxbVT
+.. section: Library
+
+Fix race condition with `ReadTransport.resume_reading` in Windows proactor
+event loop.
+
+..
+
+.. bpo: 0
+.. date: 2018-05-15-18-02-03
+.. nonce: pj2Mbb
+.. section: Library
+
+Fix failure in `typing.get_type_hints()` when ClassVar was provided as a
+string forward reference.
+
+..
+
+.. bpo: 33505
+.. date: 2018-05-14-18-05-35
+.. nonce: L8pAyt
+.. section: Library
+
+Optimize asyncio.ensure_future() by reordering if checks: 1.17x faster.
+
+..
+
+.. bpo: 33497
+.. date: 2018-05-14-17-49-34
+.. nonce: wWT6XM
+.. section: Library
+
+Add errors param to cgi.parse_multipart and make an encoding in FieldStorage
+use the given errors (needed for Twisted).  Patch by Amber Brown.
+
+..
+
+.. bpo: 33495
+.. date: 2018-05-14-10-29-03
+.. nonce: TeGTQJ
+.. section: Library
+
+Change dataclasses.Fields repr to use the repr of each of its members,
+instead of str.  This makes it more clear what each field actually
+represents.  This is especially true for the 'type' member.
+
+..
+
+.. bpo: 33453
+.. date: 2018-05-12-06-01-02
+.. nonce: Fj-jMD
+.. section: Library
+
+Fix dataclasses to work if using literal string type annotations or if using
+PEP 563 "Postponed Evaluation of Annotations".  Only specific string
+prefixes are detected for both ClassVar ("ClassVar" and "typing.ClassVar")
+and InitVar ("InitVar" and "dataclasses.InitVar").
+
+..
+
+.. bpo: 28556
+.. date: 2018-05-08-16-43-42
+.. nonce: _xr5mp
+.. section: Library
+
+Minor fixes in typing module: add annotations to ``NamedTuple.__new__``,
+pass ``*args`` and ``**kwds`` in ``Generic.__new__``.  Original PRs by
+Paulius Šarka and Chad Dombrova.
+
+..
+
+.. bpo: 20087
+.. date: 2018-05-05-18-02-24
+.. nonce: lJrvXL
+.. section: Library
+
+Updated alias mapping with glibc 2.27 supported locales.
+
+..
+
+.. bpo: 33422
+.. date: 2018-05-05-09-53-05
+.. nonce: 4FtQ0q
+.. section: Library
+
+Fix trailing quotation marks getting deleted when looking up byte/string
+literals on pydoc. Patch by Andrés Delfino.
+
+..
+
+.. bpo: 28167
+.. date: 2018-05-02-07-26-29
+.. nonce: 7FwDfN
+.. section: Library
+
+The function ``platform.linux_distribution`` and ``platform.dist`` now
+trigger a ``DeprecationWarning`` and have been marked for removal in Python
+3.8
+
+..
+
+.. bpo: 33197
+.. date: 2018-04-29-23-56-20
+.. nonce: dgRLqr
+.. section: Library
+
+Update error message when constructing invalid inspect.Parameters Patch by
+Dong-hee Na.
+
+..
+
+.. bpo: 33263
+.. date: 2018-04-11-20-29-19
+.. nonce: B56Hc1
+.. section: Library
+
+Fix FD leak in `_SelectorSocketTransport`  Patch by Vlad Starostin.
+
+..
+
+.. bpo: 32861
+.. date: 2018-04-02-20-44-54
+.. nonce: HeBjzN
+.. section: Library
+
+The urllib.robotparser's ``__str__`` representation now includes wildcard
+entries and the "Crawl-delay" and "Request-rate" fields. Patch by Michael
+Lazar.
+
+..
+
+.. bpo: 32257
+.. date: 2018-02-26-09-08-07
+.. nonce: 6ElnUt
+.. section: Library
+
+The ssl module now contains OP_NO_RENEGOTIATION constant, available with
+OpenSSL 1.1.0h or 1.1.1.
+
+..
+
+.. bpo: 16865
+.. date: 2017-09-29-16-40-38
+.. nonce: l-f6I_
+.. section: Library
+
+Support arrays >=2GiB in :mod:`ctypes`.  Patch by Segev Finer.
+
+..
+
+.. bpo: 23859
+.. date: 2018-05-29-16-02-31
+.. nonce: E5gba1
+.. section: Documentation
+
+Document that `asyncio.wait()` does not cancel its futures on timeout.
+
+..
+
+.. bpo: 32436
+.. date: 2018-05-23-11-59-51
+.. nonce: S1LGPa
+.. section: Documentation
+
+Document PEP 567 changes to asyncio.
+
+..
+
+.. bpo: 33604
+.. date: 2018-05-22-11-47-14
+.. nonce: 5YHTpz
+.. section: Documentation
+
+Update HMAC md5 default to a DeprecationWarning, bump removal to 3.8.
+
+..
+
+.. bpo: 33503
+.. date: 2018-05-14-20-08-58
+.. nonce: Wvt0qg
+.. section: Documentation
+
+Fix broken pypi link
+
+..
+
+.. bpo: 33421
+.. date: 2018-05-14-15-15-41
+.. nonce: 3GU_QO
+.. section: Documentation
+
+Add missing documentation for ``typing.AsyncContextManager``.
+
+..
+
+.. bpo: 33655
+.. date: 2018-05-26-16-01-40
+.. nonce: Frb4LA
+.. section: Tests
+
+Ignore test_posix_fallocate failures on BSD platforms that might be due to
+running on ZFS.
+
+..
+
+.. bpo: 32604
+.. date: 2018-05-14-13-32-46
+.. nonce: a_z6D_
+.. section: Tests
+
+Remove the _xxsubinterpreters module (meant for testing) and associated
+helpers.  This module was originally added recently in 3.7b1.
+
+..
+
+.. bpo: 33614
+.. date: 2018-05-28-11-40-22
+.. nonce: 28e0sE
+.. section: Build
+
+Ensures module definition files for the stable ABI on Windows are correctly
+regenerated.
+
+..
+
+.. bpo: 33522
+.. date: 2018-05-15-12-44-50
+.. nonce: mJoNcA
+.. section: Build
+
+Enable CI builds on Visual Studio Team Services at
+https://python.visualstudio.com/cpython
+
+..
+
+.. bpo: 33012
+.. date: 2018-05-10-21-10-01
+.. nonce: 5Zfjac
+.. section: Build
+
+Add ``-Wno-cast-function-type`` for gcc 8 for silencing warnings about
+function casts like casting to PyCFunction in method definition lists.
+
+..
+
+.. bpo: 13631
+.. date: 2018-05-16-13-25-58
+.. nonce: UIjDyY
+.. section: macOS
+
+The .editrc file in user's home directory is now processed correctly during
+the readline initialization through editline emulation on macOS.
+
+..
+
+.. bpo: 33628
+.. date: 2018-05-23-19-51-07
+.. nonce: sLlFLO
+.. section: IDLE
+
+IDLE: Cleanup codecontext.py and its test.
+
+..
+
+.. bpo: 33564
+.. date: 2018-05-17-19-41-12
+.. nonce: XzHZJe
+.. section: IDLE
+
+IDLE's code context now recognizes async as a block opener.
+
+..
+
+.. bpo: 32831
+.. date: 2018-02-12-08-08-45
+.. nonce: srDRvU
+.. section: IDLE
+
+Add docstrings and tests for codecontext.
diff --git a/Misc/NEWS.d/3.7.0rc1.rst b/Misc/NEWS.d/3.7.0rc1.rst
new file mode 100644
index 00000000000..bc3cc8ee6a3
--- /dev/null
+++ b/Misc/NEWS.d/3.7.0rc1.rst
@@ -0,0 +1,275 @@
+.. bpo: 33803
+.. date: 2018-06-07-20-18-38
+.. nonce: n-Nq6_
+.. release date: 2018-06-12
+.. section: Core and Builtins
+
+Fix a crash in hamt.c caused by enabling GC tracking for an object that
+hadn't all of its fields set to NULL.
+
+..
+
+.. bpo: 33706
+.. date: 2018-05-31-14-50-04
+.. nonce: ztlH04
+.. section: Core and Builtins
+
+Fix a crash in Python initialization when parsing the command line options.
+Thanks Christoph Gohlke for the bug report and the fix!
+
+..
+
+.. bpo: 30654
+.. date: 2018-05-28-12-28-53
+.. nonce: 9fDJye
+.. section: Core and Builtins
+
+Fixed reset of the SIGINT handler to SIG_DFL on interpreter shutdown even
+when there was a custom handler set previously. Patch by Philipp Kerling.
+
+..
+
+.. bpo: 31849
+.. date: 2018-05-14-11-00-00
+.. nonce: EmHaH4
+.. section: Core and Builtins
+
+Fix signed/unsigned comparison warning in pyhash.c.
+
+..
+
+.. bpo: 30167
+.. date: 2018-06-10-19-29-17
+.. nonce: G5EgC5
+.. section: Library
+
+Prevent site.main() exception if PYTHONSTARTUP is set. Patch by Steve Weber.
+
+..
+
+.. bpo: 33812
+.. date: 2018-06-10-13-26-02
+.. nonce: frGAOr
+.. section: Library
+
+Datetime instance d with non-None tzinfo, but with d.tzinfo.utcoffset(d)
+returning None is now treated as naive by the astimezone() method.
+
+..
+
+.. bpo: 30805
+.. date: 2018-06-08-17-34-16
+.. nonce: 3qCWa0
+.. section: Library
+
+Avoid race condition with debug logging
+
+..
+
+.. bpo: 33694
+.. date: 2018-06-07-23-51-00
+.. nonce: F1zIR1
+.. section: Library
+
+asyncio: Fix a race condition causing data loss on
+pause_reading()/resume_reading() when using the ProactorEventLoop.
+
+..
+
+.. bpo: 32493
+.. date: 2018-06-07-18-55-35
+.. nonce: 1Bte62
+.. section: Library
+
+Correct test for ``uuid_enc_be`` availability in ``configure.ac``. Patch by
+Michael Felt.
+
+..
+
+.. bpo: 33792
+.. date: 2018-06-07-12-38-12
+.. nonce: 3aKG7u
+.. section: Library
+
+Add asyncio.WindowsSelectorEventLoopPolicy and
+asyncio.WindowsProactorEventLoopPolicy.
+
+..
+
+.. bpo: 33778
+.. date: 2018-06-05-20-22-30
+.. nonce: _tSAS6
+.. section: Library
+
+Update ``unicodedata``'s database to Unicode version 11.0.0.
+
+..
+
+.. bpo: 33770
+.. date: 2018-06-05-11-29-26
+.. nonce: oBhxxw
+.. section: Library
+
+improve base64 exception message for encoded inputs of invalid length
+
+..
+
+.. bpo: 33769
+.. date: 2018-06-04-13-46-39
+.. nonce: D_pxYz
+.. section: Library
+
+asyncio/start_tls: Fix error message; cancel callbacks in case of an
+unhandled error; mark SSLTransport as closed if it is aborted.
+
+..
+
+.. bpo: 33767
+.. date: 2018-06-03-22-41-59
+.. nonce: 2e82g3
+.. section: Library
+
+The concatenation (``+``) and repetition (``*``) sequence operations now
+raise :exc:`TypeError` instead of :exc:`SystemError` when performed on
+:class:`mmap.mmap` objects.  Patch by Zackery Spytz.
+
+..
+
+.. bpo: 33734
+.. date: 2018-06-01-10-55-48
+.. nonce: x1W9x0
+.. section: Library
+
+asyncio/ssl: Fix AttributeError, increase default handshake timeout
+
+..
+
+.. bpo: 11874
+.. date: 2018-05-23-00-26-27
+.. nonce: glK5iP
+.. section: Library
+
+Use a better regex when breaking usage into wrappable parts. Avoids bogus
+assertion errors from custom metavar strings.
+
+..
+
+.. bpo: 33582
+.. date: 2018-05-19-15-58-14
+.. nonce: qBZPmF
+.. section: Library
+
+Emit a deprecation warning for inspect.formatargspec
+
+..
+
+.. bpo: 33409
+.. date: 2018-06-08-23-46-01
+.. nonce: r4z9MM
+.. section: Documentation
+
+Clarified the relationship between PEP 538's PYTHONCOERCECLOCALE and PEP
+540's PYTHONUTF8 mode.
+
+..
+
+.. bpo: 33736
+.. date: 2018-06-01-12-27-40
+.. nonce: JVegIu
+.. section: Documentation
+
+Improve the documentation of :func:`asyncio.open_connection`,
+:func:`asyncio.start_server` and their UNIX socket counterparts.
+
+..
+
+.. bpo: 31432
+.. date: 2017-09-13-07-14-59
+.. nonce: yAY4Z3
+.. section: Documentation
+
+Clarify meaning of CERT_NONE, CERT_OPTIONAL, and CERT_REQUIRED flags for
+ssl.SSLContext.verify_mode.
+
+..
+
+.. bpo: 5755
+.. date: 2018-06-04-21-34-34
+.. nonce: 65GmCj
+.. section: Build
+
+Move ``-Wstrict-prototypes`` option to ``CFLAGS_NODIST`` from ``OPT``. This
+option emitted annoying warnings when building extension modules written in
+C++.
+
+..
+
+.. bpo: 33720
+.. date: 2018-06-04-09-20-53
+.. nonce: VKDXHK
+.. section: Windows
+
+Reduces maximum marshal recursion depth on release builds.
+
+..
+
+.. bpo: 33656
+.. date: 2018-06-10-17-59-36
+.. nonce: 60ZqJS
+.. section: IDLE
+
+On Windows, add API call saying that tk scales for DPI. On Windows 8.1+ or
+10, with DPI compatibility properties of the Python binary unchanged, and a
+monitor resolution greater than 96 DPI, this should make text and lines
+sharper.  It should otherwise have no effect.
+
+..
+
+.. bpo: 33768
+.. date: 2018-06-04-19-23-11
+.. nonce: I_2qpV
+.. section: IDLE
+
+Clicking on a context line moves that line to the top of the editor window.
+
+..
+
+.. bpo: 33763
+.. date: 2018-06-03-20-12-57
+.. nonce: URiFlE
+.. section: IDLE
+
+IDLE: Use read-only text widget for code context instead of label widget.
+
+..
+
+.. bpo: 33664
+.. date: 2018-06-03-09-13-28
+.. nonce: PZzQyL
+.. section: IDLE
+
+Scroll IDLE editor text by lines. Previously, the mouse wheel and scrollbar
+slider moved text by a fixed number of pixels, resulting in partial lines at
+the top of the editor box.  The change also applies to the shell and grep
+output windows, but not to read-only text views.
+
+..
+
+.. bpo: 33679
+.. date: 2018-05-29-07-14-37
+.. nonce: MgX_Ui
+.. section: IDLE
+
+Enable theme-specific color configuration for Code Context. Use the
+Highlights tab to see the setting for built-in themes or add settings to
+custom themes.
+
+..
+
+.. bpo: 33642
+.. date: 2018-05-24-20-42-44
+.. nonce: J0VQbS
+.. section: IDLE
+
+Display up to maxlines non-blank lines for Code Context. If there is no
+current context, show a single blank line.