[Python-announce] NumPy 2.3.1 released

Charles R Harris via Python-announce-list <[email protected]> Sat, 21 Jun 2025 07:34:32 -0600

Newsgroups	gmane.comp.python.announce
Message-ID	<CAB6mnx+y_oB24S3NfV-hhJ4CwZc5hsPLEJ2DwEu9WtpU_Essrg__9290.00650519214$1750513254$gmane$org@mail.gmail.com>

Hi All,

On behalf of the NumPy team, I'm pleased to announce the release of
NumPy 2.3.1. The NumPy 2.3.1 release is a patch release with several bug
fixes, annotation improvements, and better support for OpenBSD. Highlights
are:

   - Fix bug in ``matmul`` for non-contiguous out kwarg parameter
   - Fix for Accelerate runtime warnings on M4 hardware
   - Fix new in NumPy 2.3.0 ``np.vectorize`` casting errors
   - Improved support of cpu features for FreeBSD and OpenBSD

This release supports Python 3.11-3.13, Python 3.14 will be supported when
it is released. Wheels can be downloaded from PyPI
<https://pypi.org/project/numpy/2.3.1>; source archives, release notes, and
wheel hashes are available on Github
<https://github.com/numpy/numpy/releases/tag/v2.3.1>.


*Contributors*

A total of 9 people contributed to this release.  People with a "+" by
their names contributed a patch for the first time.

   - Brad Smith +
   - Charles Harris
   - Developer-Ecosystem-Engineering
   - François Rozet
   - Joren Hammudoglu
   - Matti Picus
   - Mugundan Selvanayagam
   - Nathan Goldbaum
   - Sebastian Berg



*Pull requests merged*
A total of 12 pull requests were merged for this release.

   - #29140: MAINT: Prepare 2.3.x for further development
   - #29191: BUG: fix matmul with transposed out arg (#29179)
   - #29192: TYP: Backport typing fixes and improvements.
   - #29205: BUG: Revert ``np.vectorize`` casting to legacy behavior
   (#29196)
   - #29222: TYP: Backport typing fixes
   - #29233: BUG: avoid negating unsigned integers in resize
   implementation...
   - #29234: TST: Fix test that uses uninitialized memory (#29232)
   - #29235: BUG: Address interaction between SME and FPSR (#29223)
   - #29237: BUG: Enforce integer limitation in concatenate (#29231)
   - #29238: CI: Add support for building NumPy with LLVM for Win-ARM64
   - #29241: ENH: Detect CPU features on OpenBSD ARM and PowerPC64
   - #29242: ENH: Detect CPU features on FreeBSD / OpenBSD RISC-V64.


Cheers,

Charles Harris
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