[pypy-commit] pypy default: document changes to default since pypy2.7-v5.4.0 on Aug 31

[mattip]

Author: Matti Picus <matti.picus at gmail.com>
Branch: 
Changeset: r87992:25ff61b81a93
Date: 2016-10-30 00:26 +0300
http://bitbucket.org/pypy/pypy/changeset/25ff61b81a93/

Log:	document changes to default since pypy2.7-v5.4.0 on Aug 31

diff --git a/pypy/doc/release-pypy2.7-v5.6.0.rst b/pypy/doc/release-pypy2.7-v5.6.0.rst
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+============
+PyPy2.7 v5.6
+============
+
+We have released PyPy2.7 v5.6, about two months after PyPy2.7 v5.4.
+This new PyPy2.7 release includes the upstream stdlib version 2.7.12.
+
+We continue to make incremental improvements to our C-API
+compatability layer (cpyext). We pass all but a few of the tests in the
+upstream numpy `test suite`_. 
+
+Work proceeds at a good pace on the PyPy3.5
+version due to a grant_ from the Mozilla Foundation, and some of those
+changes have been backported to PyPy2.7 where relevant
+
+We changed ``timeit`` to now report average +- standard deviation, which is
+better than the misleading minimum value reported in CPython.
+
+XXX
+
+As always, this release fixed many issues and bugs raised by the
+growing community of PyPy users. We strongly recommend updating.
+
+You can download the PyPy2.7 v5.6 release here:
+
+    http://pypy.org/download.html
+
+We would like to thank our donors for the continued support of the PyPy
+project.
+
+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.
+
+.. _`test suite`: https://bitbucket.org/pypy/pypy/wiki/Adventures%20in%20cpyext%20compatibility
+.. _cffi: https://cffi.readthedocs.org
+.. _grant: https://morepypy.blogspot.com/2016/08/pypy-gets-funding-from-mozilla-for.html
+.. _`PyPy`: http://doc.pypy.org
+.. _`RPython`: https://rpython.readthedocs.org
+.. _`modules`: http://doc.pypy.org/en/latest/project-ideas.html#make-more-python-modules-pypy-friendly
+.. _`help`: http://doc.pypy.org/en/latest/project-ideas.html
+
+What is PyPy?
+=============
+
+PyPy is a very compliant Python interpreter, almost a drop-in replacement for
+CPython 2.7. 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.
+
+This 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://pypyjs.org
+
+Other Highlights (since 5.4 released Aug 31, 2016)
+=========================================================
+
+* New features
+  * Allow tests run with `-A` to find `libm.so` even if it is a script not a
+    dynamically loadable file
+  * Backport fixes to rposix on windows from py2.5
+  * Allow user-defined ``__getitem__`` on subclasses of ``str`` and ``unicode``
+  * Add ``inode`` to ``scandir()`` on posix systems
+  * Support more attributes on ``super``
+  * Issue #2386: non-latin1 unicode keys were ignored in ``unicode.format(**d)``
+  * Restore the ability to translate with CPython
+  * Update to CFFI 1.8.4
+  * Support the new buffer protocol in cpyext and numpypy
+  * Add ``rposix.sync()``
+  * Support full-precision nanosecond times in os.stat()
+  * Add documentation about the assembler backends to RPYthon
+  * Search for the stdlibs from the libpypy shared object rather than the pypy-c exe,
+    changes downstream packaging requirments
+  * Add ``try_inline``, like ``always_inline`` and ``dont_inline`` to RPython
+  * Reject ``'a'.strip(buffer(' '))`` like cpython (the argument to strip must
+    be ``str`` or ``unicode``)
+  * Allow ``warning.warn(('something', 1), Warning)`` like on CPython
+  * Refactor ``rclock`` and add some more ``CLOCK_xxx`` constants on
+    relevant platforms
+  * Backport the ``'faulthandler`` module from py3.5
+  * Improve the error message when trying to call a method where the ``self``
+    parameter is missing in the definition
+  * Implement ``rposix.cpu_count``
+  * Support translation on FreeBSD running on PowerPC
+  * Implement ``__rmod__`` on ``str`` and ``unicode`` types
+  * Issue warnings for stricter handling of ``__new__``, ``__init__`` args
+
+* Bug Fixes
+  * Tweak a float comparison with 0 in `backendopt.inline` to avoid rounding errors
+  * Fix translation of the sandbox
+  * Fix for an issue where `unicode.decode('utf8', 'custom_replace')` messed up
+    the last byte of a unicode string sometimes
+  * fix some calls to functions through window's COM interface
+  * fix minor leak when the C call to socketpair() fails
+  * make sure (-1.0 + 0j).__hash__(), (-1.0).__hash__() returns -2
+  * Fix for an issue where PyBytesResize was called on a fresh pyobj
+  * Fix bug in codewriter about passing the ``exitswitch`` variable to a call
+  * Don't crash in ``merge_if_blocks`` if the values are symbolics
+  * Issue #2325/2361: __class__ assignment between two classes with the same
+    slots
+  * Issue #2409: don't leak the file descriptor when doing ``open('some-dir')``
+  * Windows fixes around vmprof
+  * Don't use ``sprintf()`` from inside a signal handler
+  * Test and fix bug from the ``guard_not_forced_2`` branch, which didn't
+    save the floating-point register
+  * ``_numpypy.add.reduce`` returns a scalar now
+
+* Performance improvements:
+  * Improve method calls on oldstyle classes
+  * Clean and refactor code for testing cpyext to allow sharing with py3.5
+  * Refactor a building the map of reflected ops in ``_numpypy``
+  * Improve merging of virtual states in the JIT in order to avoid jumping to the
+    preamble
+  * In JIT residual calls, if the called function starts with a fast-path like
+    ``if x.foo != 0: return x.foo``, then inline the check before doing the
+     ``CALL``.
+  * Ensure ``make_inputargs`` fails properly when given arguments with type 
+    information
+  * Makes ``optimiseopt`` iterative instead of recursive so it can be reasoned
+    about more easily and debugging is faster
+  * Refactor and remove dead code from ``optimizeopt``, ``resume``
+  
+
+.. _resolved: http://doc.pypy.org/en/latest/whatsnew-5.6.0.html
+
+Please update, and continue to help us make PyPy better.
+
+Cheers