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  • [Python-announce] NumPy 2.4.5 Released

    From Charles R Harris@charlesr.harris@gmail.com to comp.lang.python.announce on Fri May 15 15:21:19 2026
    From Newsgroup: comp.lang.python.announce

    Hi All,

    On behalf of the NumPy team, I'm pleased to announce the release of NumPy 2.4.5. NumPy 2.4.5 is a patch release that fixes bugs discovered after the 2.4.4 release, has some typing improvements, and maintains infrastructure.

    This release supports Python versions 3.11-3.14. Wheels can be downloaded
    from PyPI <https://pypi.org/project/numpy/2.4.5>; release notes and the changelog are available on Github <https://github.com/numpy/numpy/releases/tag/v2.4.5>.



    *Contributors*
    A total of 17 people contributed to this release. People with a "+" by
    their names contributed a patch for the first time.

    - Aleksei Nikiforov
    - Anarion Zuo +
    - Ankit Ahlawat
    - Breno Favaretto +
    - Charles Harris
    - Igor Krivenko +
    - Ijtihed Kilani +
    - Joren Hammudoglu
    - Maarten Baert +
    - Matti Picus
    - Nathan Goldbaum
    - Praneeth Kodumagulla +
    - Ralf Gommers
    - RoomWithOutRoof +
    - Sebastian Berg
    - Warren Weckesser
    - div +



    *Pull requests merged*
    A total of 28 pull requests were merged for this release.

    - #31093: MAINT: Prepare 2.4.x for further development
    - #31182: TYP: fix ``np.shape`` assignability issue for python lists
    (#31171)
    - #31197: ENH: Return rank 0 for empty matrices in matrix_rank (#30422)
    - #31198: CI/BUG: add native jobs for s390x, fix bug in ``pack_inner``...
    - #31199: BUG: f2py map complex_long_double to NPY_CLONGDOUBLE
    - #31205: MAINT: f2py: Stop setting re._MAXCACHE to 50.
    - #31206: BUG: fix heap buffer overflow in timedelta to string casts
    - #31207: MAINT: Rename ppc64le and s390x workflow (#31121)
    - #31208: BUG: Fix matvec/vecmat in-place aliasing (out=input produces...
    - #31209: TYP: ``tile``\ : accept numpy scalars and arrays as second
    argument...
    - #31211: DEP: Undo deprecation for np.dtype() signature used by old
    pickles...
    - #31212: REV: Manual revert of float16 svml use (#31178)
    - #31222: TYP: ``ix_`` fix for boolean and non-1d input (#31218)
    - #31329: BUG: incorrect temp elision for new-style (NEP 43)
    user-defined...
    - #31330: TYP: fix sliding_window_view axis parameter typing
    - #31335: BUG: Prevent deadlock due to downstream importing NumPy in
    dlopen...
    - #31336: BUG: Fix segfault in nditer.multi_index when __getitem__
    raises...
    - #31338: TYP: Fix ruff lint error
    - #31357: BUG: fix memory leak in np.zeros when fill-zero loop raises
    (#31320)
    - #31358: BUG: np.einsum() fails with a 0-dimensional out argument and...
    - #31379: BUG: Fix signed overflow issue in npy_gcd for INT_MIN on
    s390x...
    - #31383: CI: remove Cirrus CI FreeBSD job (#31380)
    - #31390: BUILD: newer MKL uses so.3
    - #31391: BLD/MAINT: improve support for Intel LLVM compilers
    - #31401: BUG: Avoid UB in safe_[add,sub,mul] helpers (#31396)
    - #31402: BUG: exclude __pycache__ directories from wheels (#31397)
    - #31404: TYP: ``_NestedSequence`` type parameter default to work
    around...
    - #31426: TYP: Fix ``DTypeLike`` runtime type-checker support (#31425)


    Cheers,

    Charles Harris
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