NumPy 1.26.3 Release Notes

NumPy 1.26.3 is a maintenance release that fixes bugs and regressions
discovered after the 1.26.2 release. The most notable changes are the
f2py bug fixes. The Python versions supported by this release are
3.9-3.12.

Compatibility

f2py will no longer accept ambiguous -m and .pyf CLI combinations.
When more than one .pyf file is passed, an error is raised. When both
-m and a .pyf is passed, a warning is emitted and the -m provided
name is ignored.

Improvements

f2py now handles common blocks which have kind specifications from
modules. This further expands the usability of intrinsics like
iso_fortran_env and iso_c_binding.

Contributors

A total of 18 people contributed to this release. People with a "+" by
their names contributed a patch for the first time.

• @DWesl
• @Illviljan
• Alexander Grund
• Andrea Bianchi +
• Charles Harris
• Daniel Vanzo
• Johann Rohwer +
• Matti Picus
• Nathan Goldbaum
• Peter Hawkins
• Raghuveer Devulapalli
• Ralf Gommers
• Rohit Goswami
• Sayed Adel
• Sebastian Berg
• Stefano Rivera +
• Thomas A Caswell
• matoro

Pull requests merged

A total of 42 pull requests were merged for this release.

• #25130: MAINT: prepare 1.26.x for further development
• #25188: TYP: add None to __getitem__ in numpy.array_api
• #25189: BLD,BUG: quadmath required where available [f2py]
• #25190: BUG: alpha doesn't use REAL(10)
• #25191: BUG: Fix FP overflow error in division when the divisor is scalar
• #25192: MAINT: Pin scipy-openblas version.
• #25201: BUG: Fix f2py to enable use of string optional inout argument
• #25202: BUG: Fix -fsanitize=alignment issue in numpy/_core/src/multiarray/arraytypes.c.src
• #25203: TST: Explicitly pass NumPy path to cython during tests (also...
• #25204: BUG: fix issues with newaxis and linalg.solve in numpy.array_api
• #25205: BUG: Disallow shadowed modulenames
• #25217: BUG: Handle common blocks with kind specifications from modules
• #25218: BUG: Fix moving compiled executable to root with f2py -c on Windows
• #25219: BUG: Fix single to half-precision conversion on PPC64/VSX3
• #25227: TST: f2py: fix issue in test skip condition
• #25240: Revert "MAINT: Pin scipy-openblas version."
• #25249: MAINT: do not use long type
• #25377: TST: PyPy needs another gc.collect on latest versions
• #25378: CI: Install Lapack runtime on Cygwin.
• #25379: MAINT: Bump conda-incubator/setup-miniconda from 2.2.0 to 3.0.1
• #25380: BLD: update vendored Meson for AIX shared library fix
• #25419: MAINT: Init base in cpu_avx512_kn
• #25420: BUG: Fix failing test_features on SapphireRapids
• #25422: BUG: Fix non-contiguous memory load when ARM/Neon is enabled
• #25428: MAINT,BUG: Never import distutils above 3.12 [f2py]
• #25452: MAINT: make the import-time check for old Accelerate more specific
• #25458: BUG: fix macOS version checks for Accelerate support
• #25465: MAINT: Bump actions/setup-node and larsoner/circleci-artifacts-redirector-action
• #25466: BUG: avoid seg fault from OOB access in RandomState.set_state()
• #25467: BUG: Fix two errors related to not checking for failed allocations
• #25468: BUG: Fix regression with f2py wrappers when modules and subroutines...
• #25475: BUG: Fix build issues on SPR
• #25478: BLD: fix uninitialized variable warnings from simd/neon/memory.h
• #25480: BUG: Handle iso_c_type mappings more consistently
• #25481: BUG: Fix module name bug in signature files [urgent] [f2py]
• #25482: BUG: Handle .pyf.src and fix SciPy [urgent]
• #25483: DOC: f2py rewrite with meson details
• #25485: BUG: Add external library handling for meson [f2py]
• #25486: MAINT: Run f2py's meson backend with the same python that ran...
• #25489: MAINT: Update numpy/f2py/_backends from main.
• #25490: MAINT: Easy updates of f2py/*.py from main.
• #25491: MAINT: Update crackfortran.py and f2py2e.py from main

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