NumPy 1.18.4 Release Notes#

This is the last planned release in the 1.18.x series. It reverts the bool("0") behavior introduced in 1.18.3 and fixes a bug in Generator.integers. There is also a link to a new troubleshooting section in the documentation included in the error message emitted when numpy import fails.

The Python versions supported in this release are 3.5-3.8. Downstream developers should use Cython >= 0.29.15 for Python 3.8 support and OpenBLAS >= 3.7 to avoid errors on the Skylake architecture.


A total of 4 people contributed to this release. People with a “+” by their names contributed a patch for the first time.

  • Charles Harris

  • Matti Picus

  • Sebastian Berg

  • Warren Weckesser

Pull requests merged#

A total of 6 pull requests were merged for this release.

  • #16055: BLD: add i686 for 1.18 builds

  • #16090: BUG: random: Generator.integers(2**32) always returned 0.

  • #16091: BLD: fix path to libgfortran on macOS

  • #16109: REV: Reverts side-effect changes to casting

  • #16114: BLD: put openblas library in local directory on windows

  • #16132: DOC: Change import error “howto” to link to new troubleshooting…