# What's new in PyPy3 7.2.0

Fix parsing for converting strings with underscore into ints

Improve multiprocessing support on win32

Allow 2d indexing in `memoryview.__setitem__` (issue bb-3028)

Add handling of application-level test files and -D flag to test runner

Update standard library to version 3.6.9

Fix handling of __debug__, sys.flags.optimize, and '-O' command-line flag to match CPython 3.6.

Add `PyErr_SetFromWindowsErr` and `pytime.h`, `pytime.c`. Fix order of fields in `Py_buffer`.

Add support for the entire stdlib being inside a zipfile

Much faster and more memory-efficient JSON decoding. The resulting dictionaries that come out of the JSON decoder have faster lookups too.