[pypy-commit] pypy default: first draft of release note

[mattip]

Author: Matti Picus <matti.picus at gmail.com>
Branch: 
Changeset: r95738:07c721ed19aa
Date: 2019-01-28 16:20 +0200
http://bitbucket.org/pypy/pypy/changeset/07c721ed19aa/

Log:	first draft of release note

diff --git a/pypy/doc/release-v7.0.0.rst b/pypy/doc/release-v7.0.0.rst
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+===========================================
+PyPy2.7, PyPy3.5. PyPy3.6alpha v7.0 release
+===========================================
+
+The PyPy team is proud to release PyPy2.7 (supporting Python 2.7 syntax),
+PyPy3.5 (supporting Python 3.5 syntax with f-strings from 3.6), and our first
+alpha release of PyPy3.6 for 64-bit linux only (supporting Python 3.6 syntax).
+The releases are based on much the same codebase.
+
+This release is a feature release following our previous 6.0 release in April
+2018. Our C-API compatibility layer ``cpyext`` is more mature, as more projects
+use PyPy3.5 in their CI testing. Since these changes affect the included python
+development header files, all c-extension modules must be recompiled for this
+version.
+
+Until we can work with downstream providers to distribute builds with PyPy, we
+have made packages for some common packages `available as wheels`_.
+
+The GC now has `hooks`_ to gain more insights into its performance, and it is
+now possible to manually manage the GC by using a combination of
+``gc.disable`` and ``gc.collect_step``. See the `GC blog post`_.
+
+
+We updated the `cffi`_ module included in PyPy to version 1.12, and the
+`cppyy`_ backend to 1.4. Please use these to wrap your C and C++ code,
+respectively, for a JIT friendly experience.
+
+As always, this release is 100% compatible with the previous one and fixed
+several issues and bugs raised by the growing community of PyPy users.
+We strongly recommend updating.
+
+The PyPy3.6 release and the Windows PyPy3.5 release are still not production
+quality so your mileage may vary. There are open issues with incomplete
+compatibility and c-extension support.
+
+The utf8 branch that changes internal representation of unicode to utf8 did not
+make it into the release, so there is still more goodness coming.
+
+You can download the v7.0 releases here:
+
+    http://pypy.org/download.html
+
+We would like to thank our donors for the continued support of the PyPy
+project. If PyPy is not quite good enough for your needs, we are available for
+direct consulting work.
+
+We would also like to thank our contributors and encourage new people to join
+the project. PyPy has many layers and we need help with all of them: `PyPy`_
+and `RPython`_ documentation improvements, tweaking popular `modules`_ to run
+on pypy, or general `help`_ with making RPython's JIT even better.
+
+.. _`PyPy`: index.html
+.. _`RPython`: https://rpython.readthedocs.org
+.. _`help`: project-ideas.html
+.. _`cffi`: http://cffi.readthedocs.io
+.. _`cppyy`: https://cppyy.readthedocs.io
+.. _`available as wheels`: https://github.com/antocuni/pypy-wheels
+.. _`GC blog post`: https://morepypy.blogspot.com/2019/01/pypy-for-low-latency-systems.html
+
+What is PyPy?
+=============
+
+PyPy is a very compliant Python interpreter, almost a drop-in replacement for
+CPython 2.7, 3.5 and 3.6. It's fast (`PyPy and CPython 2.7.x`_ performance comparison)
+due to its integrated tracing JIT compiler.
+
+We also welcome developers of other `dynamic languages`_ to see what RPython
+can do for them.
+
+The PyPy release supports:
+
+  * **x86** machines on most common operating systems
+    (Linux 32/64 bits, Mac OS X 64 bits, Windows 32 bits, OpenBSD, FreeBSD)
+
+  * newer **ARM** hardware (ARMv6 or ARMv7, with VFPv3) running Linux,
+
+  * big- and little-endian variants of **PPC64** running Linux,
+
+  * **s390x** running Linux
+
+.. _`PyPy and CPython 2.7.x`: http://speed.pypy.org
+.. _`dynamic languages`: http://rpython.readthedocs.io/en/latest/examples.html
+
+Changelog
+=========
+
+If not specified, the changes are shared across versions
+
+* Support ``__set_name__``, ``__init_subclass__`` (Py3.6)
+* Support ``cppyy`` in Py3.5 and Py3.6
+* Use implementation-specific site directories in ``sysconfig`` (Py3.5, Py3.6)
+* Adding detection of gcc to ``sysconfig`` (Py3.5, Py3.6)
+* Fix multiprocessing regression on newer glibcs
+* Make sure 'blocking-ness' of socket is set along with default timeout
+* Include ``crypt.h`` for ``crypt()`` on Linux
+* Improve and re-organize the contributing_ documentation
+* Make the ``__module__`` attribute writable, fixing an incompatibility with
+  NumPy 1.16
+* Implement ``Py_ReprEnter``, ``Py_ReprLeave(), ``PyMarshal_ReadObjectFromString``,
+  ``PyMarshal_WriteObjectToString``, ``PyObject_DelItemString``,
+  ``PyMapping_DelItem``, ``PyMapping_DelItemString``, ``PyEval_GetFrame``,
+  ``PyOS_InputHook``, ``PyErr_FormatFromCause`` (Py3.6),
+* Implement new wordcode instruction encoding (Py3.6)
+* Log additional gc-minor and gc-collect-step info in the PYPYLOG
+* Set ``reverse-debugger`` active by default. For more information, see
+  https://bitbucket.org/pypy/revdb
+* Support underscores in numerical literals like ``'4_2'`` (Py3.6)
+* Pre-emptively raise MemoryError if the size of dequeue in ``_collections.deque``
+  is too large (Py3.5)
+* Fix multithreading issues in calls to ``os.setenv``
+* Add missing defines and typedefs for numpy and pandas on MSVC
+* Add CPython macros like ``Py_NAN`` to header files
+* Rename the ``MethodType`` to ``instancemethod``, like CPython
+* Better support for `async with` in generators (Py3.5, Py3.6)
+* Improve the performance of ``pow(a, b, c)`` if ``c`` is a large integer
+* Now ``vmprof`` works on FreeBSD
+* Support GNU Hurd, fixes for FreeBSD
+* Add deprecation warning if type of result of ``__float__`` is float inherited
+  class (Py3.6)
+* Fix async generator bug when yielding a ``StopIteration`` (Py3.6)
+* Speed up ``max(list-of-int)`` from non-jitted code
+* Fix Windows ``os.listdir()`` for some cases (see CPython #32539)
+* Add ``select.PIPE_BUF``
+* Use ``subprocess`` to avoid shell injection in ``shutil`` module
+* Rename ``_Py_ZeroStruct`` to ``_Py_FalseStruct`` (Py3.5, Py3.6)
+* Remove some cpyext names for Py3.5, Py3.6
+* Enable use of unicode file names in ``dlopen``
+* Backport CPython fix for ``thread.RLock``
+* Make GC hooks measure time in seconds (as opposed to an opaque unit)
+* Refactor and reorganize tests in ``test_lib_pypy``
+* Check error values in ``socket.setblocking`` (Py3.6)
+* Add support for FsPath to os.unlink() (Py3.6)
+* Fix freezing builtin modules at translation
+* Tweak ``W_UnicodeDictionaryStrategy`` which speeds up dictionaries with only
+  unicode keys
+
+We also refactored many parts of the JIT bridge optimizations, as well as cpyext
+internals, and together with new contributors fixed issues, added new
+documentation, and cleaned up the codebase.
+
+.. _contributing: http://doc.pypy.org/en/latest/contributing.html