# What's new in PyPy2.7 7.3.0+

Make cpyext test faster, especially on py3.6

Handle `NAN` more correctly in `array.array` for `__eq__` and `count`

Fixes incorrect error text for `int('1', base=1000)`

adapt contributing documentation to heptapod

Improve code generation for generators (and generator expressions in particular) when passing them to builtin functions that consume iterators, such as `sum`, `map`, `max`, etc.

Improves warmup time by up to 20%.

Improve performance of io.StringIO(). It should now be faster than CPython in common use cases.

Improve the code generation for inner functions that use outer variables that are constant.

Enable _cppyy for win32, prefer newer msvc compilers