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v2.3.1 (Jun 21, 2025)

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@charris charris released this 21 Jun 13:02
· 219 commits to main since this release
v2.3.1
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charris Charles Harris
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NumPy 2.3.1 Release Notes

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 versions 3.11-3.13, Python 3.14 will be
supported when it is released.

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.

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