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  • [Python-announce] NumPy 2.5.3 Released

    From Charles R Harris@[email protected] to comp.lang.python.announce on Sun Sep 6 11:19:31 2026
    From Newsgroup: comp.lang.python.announce

    Hi All,

    The NumPy 2.5.3 is a patch release that fixes bugs discovered after the
    2.5.2 release. Apart from the usual bug and maintenance work, there are a number of StringDType related fixes for problems discovered during the
    ongoing string work in the main branch.

    This release supports Python versions 3.12-3.15. Wheels can be downloaded
    from PyPI <https://pypi.org/project/numpy/2.5.3>; release notes and the changelog are available on Github <https://github.com/numpy/numpy/releases/tag/v2.5.3>.


    *Contributors*

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

    - Charles Harris
    - Iason Krommydas
    - James Davies +
    - Joren Hammudoglu
    - Maanas Arora
    - Matti Picus
    - Nathan Goldbaum
    - Shikhar Goel +
    - Yeonho Kim +


    *Pull requests merged*

    A total of 27 pull requests were merged for this release.

    - #32235: MAINT: Prepare 2.5.x for further development
    - #32289: BUG: raise ValueError when reading into record array with
    references...
    - #32290: BUG: avoid uninitialized memory access / NULL-pointer deref
    in...
    - #32291: TYP: fix ``np.random.{get,set}_bit_generator`` implicit
    re-exports...
    - #32292: BUG: don't assume strides are a multiple of itemsize in
    stringdtype...
    - #32293: CI: fix ccache CC override, add CXX in mac Conda CI (#32285)
    - #32303: BUG: Fix ref leak in _convert_from_type for custom scalar
    types...
    - #32304: BUG: fix a number of issues around iterators and StringDType...
    - #32326: TST: avoid allocating huge tuple of arrays in concatenate
    test...
    - #32338: BUG: avoid possible UB in 'safe' multiplication helpers
    (#32294)
    - #32339: MAINT: use ``PyObject_`` functions instead of raw ``PyArray_
    ones`` (#32331)
    - #32378: BUG: validate UTF-8 and harden StringDType bounds handling
    (#32296)
    - #32380: BUG: fix two error handling mistakes in stringdtype replace
    loop...
    - #32381: BUG: fix visibility annotations for functions in StringDType...
    - #32384: MAINT: Update ml_dtypes pin to 8/21/2026.
    - #32385: MAINT: Update numpy/_core/src/umath/svml
    - #32410: MAINT: skip failing cython limited API tests on Cython 3.3.0...
    - #32427: BUG: close duplicated file descriptor if fdopen fails (#32386)
    - #32428: MAINT: add missing space in warning and error messages (#32405)
    - #32430: BUG: fix error handling in StringDType to fixed-width bytes
    case...
    - #32441: MAINT: Only run nightly BLAS tests on main.
    - #32471: BUG: fix memory leak in StringDType creation error path
    (#32470)
    - #32477: BUG: fix stale fill_value after ufuncs change MaskedArray
    dtype...
    - #32478: MAINT: exit deadlock tests quickly on slow hardware (#32466)
    - #32481: BUG: Backport StringDType byteorder fixes
    - #32506: DOC: use static scipy doc site for intershpinx (#32503)
    - #32509: BUG: fix crash in ufunc.resolve_dtypes with a Python scalar
    type...


    Cheers,

    Charles Harris
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