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David Schneider committed dc2d3ff

first draft of 2.1.0 release notes

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pypy/doc/release-2.1.0.rst

+============================
+PyPy 2.1 - Considered ARMful
+============================
+
+We're pleased to announce PyPy 2.1, which targets version 2.7.3 of the Python
+language. This is the first release with official support for ARM processors in the JIT.
+This release also contains several bugfixes and performance improvements. 
+
+You can download the PyPy 2.1 release here:
+
+    http://pypy.org/download.html
+
+We would like to thank the `Raspberry Pi Foundation`_ for supporting the work
+to finish PyPy's ARM support.
+
+.. _`Raspberry Pi Foundation`: http://www.raspberrypi.org
+
+The first beta of PyPy3 2.1, targetting version 3 of the Python language, was
+just released, more details can be found `here`_.
+
+.. _`here`: http://morepypy.blogspot.com/2013/07/pypy3-21-beta-1.html
+
+What is PyPy?
+=============
+
+PyPy is a very compliant Python interpreter, almost a drop-in replacement for
+CPython 2.7. It's fast (`pypy 2.1 and cpython 2.7.2`_ performance comparison)
+due to its integrated tracing JIT compiler.
+
+This release supports x86 machines running Linux 32/64, Mac OS X 64 or Windows
+32. This release also supports ARM machines running Linux 32bit - anything with
+``ARMv6`` (like the Raspberry Pi) or ``ARMv7`` (like the Beagleboard,
+Chromebook, Cubieboard, etc.) that supports ``VFPv3`` should work. Both
+hard-float ``armhf/gnueabihf`` and soft-float ``armel/gnueabi`` builds are
+provided. ``armhf`` builds for Raspbian are created using the Raspberry Pi
+`custom cross-compilation toolchain <https://github.com/raspberrypi>`_
+based on ``gcc-arm-linux-gnueabihf`` and should work on ``ARMv6`` and
+``ARMv7`` devices running Debian or Raspbian. ``armel`` builds are built
+using the ``gcc-arm-linux-gnuebi`` toolchain provided by Ubuntu and
+currently target ``ARMv7``.
+
+Windows 64 work is still stalling, we would welcome a volunteer
+to handle that.
+
+.. _`pypy 2.1 and cpython 2.7.2`: http://speed.pypy.org
+
+Highlights
+==========
+
+* JIT support for ARM, architecture versions 6 and 7, hard- and soft-float ABI
+
+* Stacklet support for ARM
+
+* Support for os.statvfs and os.fstatvfs on unix systems
+
+* Improved logging performance
+
+* Faster sets for objects
+
+* Interpreter improvements
+
+* During packaging, compile the CFFI based TK extension
+
+* Pickling of numpy arrays and dtypes 
+
+* Subarrays for numpy
+
+* Bugfixes to numpy
+
+* Bugfixes to cffi and ctypes
+
+* Bugfixes to the x86 stacklet support
+
+* Fixed issue `1533`_: fix an RPython-level OverflowError for space.float_w(w_big_long_number). 
+
+* Fixed issue `1552`_: GreenletExit should inherit from BaseException.
+
+* Fixed issue `1537`_: numpypy __array_interface__
+  
+* Fixed issue `1238`_: Writing to an SSL socket in PyPy sometimes failed with a "bad write retry" message.
+
+.. _`1533`: https://bugs.pypy.org/issue1533
+.. _`1552`: https://bugs.pypy.org/issue1552
+.. _`1537`: https://bugs.pypy.org/issue1537
+.. _`1238`: https://bugs.pypy.org/issue1238
+
+Cheers,
+
+David Schneider for the PyPy team.