NumPy 1.19.5 Release Notes#

NumPy 1.19.5 is a short bugfix release. Apart from fixing several bugs, the main improvement is the update to OpenBLAS 0.3.13 that works around the windows 2004 bug while not breaking execution on other platforms. This release supports Python 3.6-3.9 and is planned to be the last release in the 1.19.x cycle.


A total of 8 people contributed to this release. People with a “+” by their names contributed a patch for the first time.

  • Charles Harris

  • Christoph Gohlke

  • Matti Picus

  • Raghuveer Devulapalli

  • Sebastian Berg

  • Simon Graham +

  • Veniamin Petrenko +

  • Bernie Gray +

Pull requests merged#

A total of 11 pull requests were merged for this release.

  • #17756: BUG: Fix segfault due to out of bound pointer in floatstatus…

  • #17774: BUG: fix np.timedelta64(‘nat’).__format__ throwing an exception

  • #17775: BUG: Fixed file handle leak in array_tofile.

  • #17786: BUG: Raise recursion error during dimension discovery

  • #17917: BUG: Fix subarray dtype used with too large count in fromfile

  • #17918: BUG: ‘bool’ object has no attribute ‘ndim’

  • #17919: BUG: ensure _UFuncNoLoopError can be pickled

  • #17924: BLD: use BUFFERSIZE=20 in OpenBLAS

  • #18026: BLD: update to OpenBLAS 0.3.13

  • #18036: BUG: make a variable volatile to work around clang compiler bug

  • #18114: REL: Prepare for the NumPy 1.19.5 release.