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# NumPy 1.17.4 Release Notes

This release contains fixes for bugs reported against NumPy 1.17.3 along with some build improvements. The Python versions supported in this release are 3.5-3.8.

Downstream developers should use Cython >= 0.29.13 for Python 3.8 support and OpenBLAS >= 3.7 to avoid errors on the Skylake architecture.

## Highlights

- Fixed `random.random_integers` biased generation of 8 and 16 bit integers.

- Fixed np.einsum regression on Power9 and z/Linux.

- Fixed histogram problem with signed integer arrays.

## Contributors

A total of 5 people contributed to this release. People with a “+” by their names contributed a patch for the first time.

- Charles Harris

- Chris Burr +

- Matti Picus

- Qiming Sun +

- Warren Weckesser

## Pull requests merged

A total of 8 pull requests were merged for this release.

- #14758: BLD: declare support for python 3.8

- #14781: BUG: random: biased samples from integers() with 8 or 16 bit…

- #14851: BUG: Fix _ctypes class circular reference. (#13808)

- #14852: BLD: add ‘apt update’ to shippable

- #14855: BUG: Fix np.einsum errors on Power9 Linux and z/Linux

- #14857: BUG: lib: Fix histogram problem with signed integer arrays.

- #14858: BLD: Prevent -flto from optimising long double representation…

- #14866: MAINT: move buffer.h -> npy_buffer.h to avoid conflicts