What's new in PyPy 2.0
Split rpython and pypy into seperate directories
Callbacks from C are now better JITted
Implement __lenght_hint__ according to PEP 424
Long double support for numpypy .. branch: numpypy-real-as-view Convert real, imag from ufuncs to views. This involves the beginning of view() functionality
Improved RPython typing
Rudimentary support for bytearray in RPython
Fixed the interaction between two internal tools for controlling the JIT.
Better optimized certain types of frame accesses in the JIT, particularly around exceptions that escape the function they were raised in.
Some missing attributes from ndarrays
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.
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.