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======================
What's new in PyPy 2.0
======================

.. this is a revision shortly after release-2.0-beta1
.. startrev: 0e6161a009c6

.. branch: split-rpython

Split rpython and pypy into seperate directories

.. branch: callback-jit

Callbacks from C are now better JITted

.. branch: fix-jit-logs

.. branch: remove-globals-in-jit

.. branch: length-hint

Implement __lenght_hint__ according to PEP 424

.. branch: numpypy-longdouble

Long double support for numpypy

.. branch: numpypy-disable-longdouble

Since r_longdouble support is missing, disable all longdouble and derivative
dtypes using ENABLED_LONG_DOUBLE = False

.. branch: numpypy-real-as-view

Convert real, imag from ufuncs to views. This involves the beginning of
view() functionality

.. branch: indexing-by-array

Adds indexing by scalar, adds int conversion from scalar and single element array,
fixes compress, indexing by an array with a smaller shape and the indexed object.

.. branch: str-dtype-improvement

Allow concatenation of str and numeric arrays

.. branch: signatures

Improved RPython typing

.. branch: rpython-bytearray

Rudimentary support for bytearray in RPython

.. branch: refactor-call_release_gil

Fix a bug which caused cffi to return the wrong result when calling a C
function which calls a Python callback which forces the frames

.. branch: virtual-raw-mallocs

JIT optimizations which make cffi calls even faster, by removing the need to
allocate a temporary buffer where to store the arguments.

.. branch: improve-docs-2

Improve documents and straighten out links

.. branch: fast-newarray

Inline the fast path of newarray in the assembler.
Disabled on ARM until we fix issues.

.. branch: reflex-support

Allow dynamic loading of a (Reflex) backend that implements the C-API needed
to provide reflection information


.. branches we don't care about

.. branch: autoreds

.. branch: kill-faking

.. branch: improved_ebnfparse_error

.. branch: task-decorator

.. branch: fix-e4fa0b2

.. branch: win32-fixes

.. branch: numpy-unify-methods

.. branch: fix-version-tool

.. branch: popen2-removal

.. branch: pickle-dumps

.. branch: scalar_get_set

.. branch: release-2.0-beta1

.. branch: remove-PYPY_NOT_MAIN_FILE

.. branch: missing-jit-operations

.. branch: fix-lookinside-iff-oopspec

Fixed the interaction between two internal tools for controlling the JIT.

.. branch: inline-virtualref-2

Better optimized certain types of frame accesses in the JIT, particularly
around exceptions that escape the function they were raised in.

.. branch: missing-ndarray-attributes

Some missing attributes from ndarrays

.. branch: cleanup-tests

Consolidated the lib_pypy/pypy_test and pypy/module/test_lib_pypy tests into
one directory for reduced confusion and so they all run nightly.

.. branch: unquote-faster

.. branch: urlparse-unquote-faster

.. branch: signal-and-thread

Add "__pypy__.thread.signals_enabled", a context manager. Can be used in a
non-main thread to enable the processing of signal handlers in that thread.

.. branch: coding-guide-update-rlib-refs
.. branch: rlib-doc-rpython-refs
.. branch: clean-up-remaining-pypy-rlib-refs

.. branch: enumerate-rstr

Support enumerate() over rstr types.

.. branch: cleanup-numpypy-namespace

Cleanup _numpypy and numpypy namespaces to more closely resemble numpy.

.. branch: kill-flowobjspace

Random cleanups to hide FlowObjSpace from public view.

.. branch: vendor-rename

.. branch: jitframe-on-heap

Moves optimized JIT frames from stack to heap. As a side effect it enables
stackless to work well with the JIT on PyPy. Also removes a bunch of code from
the GC which fixes cannot find gc roots.

.. branch: pycon2013-doc-fixes

Documentation fixes after going through the docs at PyCon 2013 sprint.

.. branch: extregistry-refactor

.. branch: remove-list-smm

.. branch: bridge-logging

.. branch: curses_cffi

cffi implementation of _curses

.. branch: sqlite-cffi

cffi implementation of sqlite3

.. branch: release-2.0-beta2

.. branch: unbreak-freebsd

.. branch: virtualref-virtualizable