NumPy 2.4.5 Release Notes#

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

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)