[Numpy-discussion] NumPy 1.18.1 released

Charles R Harris charlesr.harris at gmail.com
Mon Jan 6 18:20:30 EST 2020

Hi All,

On behalf of the NumPy team I am pleased to announce that NumPy 1.18.1 has
been released. This release contains fixes for bugs reported against NumPy
1.18.0. Two bugs in particular that caused widespread problems downstream

   - The cython random extension test was not using a temporary directory
   for building, resulting in a permission violation. Fixed.
   - Numpy distutils was appending -std=c99 to all C compiler runs, leading
   to changed behavior and compile problems downstream. That flag is now only
   applied when building numpy C code.

The Python versions supported in this release are 3.5-3.8. Downstream
developers should use Cython >= 0.29.14 for Python 3.8 support and OpenBLAS
>= 3.7 to avoid errors on the Skylake architecture.  Wheels for this
release can be downloaded from PyPI <https://pypi.org/project/numpy/1.18.1>,
source archives and release notes are available from Github


A total of 7 people contributed to this release.  People with a "+" by their
names contributed a patch for the first time.

   - Charles Harris
   - Matti Picus
   - Maxwell Aladago
   - Pauli Virtanen
   - Ralf Gommers
   - Tyler Reddy
   - Warren Weckesser

*Pull requests merged*

A total of 13 pull requests were merged for this release.

   - `#15158 <https://github.com/numpy/numpy/pull/15158>`__: MAINT: Update
   pavement.py for towncrier.
   - `#15159 <https://github.com/numpy/numpy/pull/15159>`__: DOC: add moved
   modules to 1.18 release note
   - `#15161 <https://github.com/numpy/numpy/pull/15161>`__: MAINT, DOC:
   Minor backports and updates for 1.18.x
   - `#15176 <https://github.com/numpy/numpy/pull/15176>`__: TST: Add
   assert_array_equal test for big integer arrays
   - `#15184 <https://github.com/numpy/numpy/pull/15184>`__: BUG: use tmp
   dir and check version for cython test.
   - `#15220 <https://github.com/numpy/numpy/pull/15220>`__: BUG:
   distutils: fix msvc+gfortran openblas handling corner case
   - `#15221 <https://github.com/numpy/numpy/pull/15221>`__: BUG: remove
   -std=c99 for c++ compilation
   - `#15222 <https://github.com/numpy/numpy/pull/15222>`__: MAINT: unskip
   test on win32
   - `#15223 <https://github.com/numpy/numpy/pull/15223>`__: TST: add BLAS
   ILP64 run in Travis & Azure
   - `#15245 <https://github.com/numpy/numpy/pull/15245>`__: MAINT: only
   add --std=c99 where needed
   - `#15246 <https://github.com/numpy/numpy/pull/15246>`__: BUG: lib: Fix
   handling of integer arrays by gradient.
   - `#15247 <https://github.com/numpy/numpy/pull/15247>`__: MAINT: Do not
   use private Python function in testing
   - `#15250 <https://github.com/numpy/numpy/pull/15250>`__: REL: Prepare
   for the NumPy 1.18.1 release.


Charles Harris
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