Update dependency numpy to v2 #574

renovate · 2025-04-14T08:08:40Z

Note: This PR body was truncated due to platform limits.

This PR contains the following updates:

Package	Change	Age	Confidence
numpy (changelog)	`<2` → `<3`

Release Notes

numpy/numpy (numpy)

`v2.4.0`: 2.4.0 (Dec 20, 2025)

Compare Source

NumPy 2.4.0 Release Notes

The NumPy 2.4.0 release continues the work to improve free threaded Python
support, user dtypes implementation, and annotations. There are many expired
deprecations and bug fixes as well.

This release supports Python versions 3.11-3.14

Highlights

Apart from annotations and same_value kwarg, the 2.4 highlights are mostly
of interest to downstream developers. They should help in implementing new user
dtypes.

Many annotation improvements. In particular, runtime signature introspection.
New casting kwarg 'same_value' for casting by value.
New PyUFunc_AddLoopsFromSpec function that can be used to add user sort
loops using the ArrayMethod API.
New __numpy_dtype__ protocol.

Deprecations

Setting the `strides` attribute is deprecated

Setting the strides attribute is now deprecated since mutating
an array is unsafe if an array is shared, especially by multiple
threads. As an alternative, you can create a new view (no copy) via:

np.lib.stride_tricks.strided_window_view if applicable,
np.lib.stride_tricks.as_strided for the general case,
or the np.ndarray constructor (buffer is the original array) for a
light-weight version.

(gh-28925)

Positional `out` argument to `np.maximum`, `np.minimum` is deprecated

Passing the output array out positionally to numpy.maximum and
numpy.minimum is deprecated. For example, np.maximum(a, b, c) will emit
a deprecation warning, since c is treated as the output buffer rather than
a third input.

Always pass the output with the keyword form, e.g. np.maximum(a, b, out=c).
This makes intent clear and simplifies type annotations.

(gh-29052)

`align=` must be passed as boolean to `np.dtype()`

When creating a new dtype a VisibleDeprecationWarning will be given if
align= is not a boolean. This is mainly to prevent accidentally passing a
subarray align flag where it has no effect, such as np.dtype("f8", 3)
instead of np.dtype(("f8", 3)). We strongly suggest to always pass
align= as a keyword argument.

(gh-29301)

Assertion and warning control utilities are deprecated

np.testing.assert_warns and np.testing.suppress_warnings are
deprecated. Use warnings.catch_warnings, warnings.filterwarnings,
pytest.warns, or pytest.filterwarnings instead.

(gh-29550)

`np.fix` is pending deprecation

The numpy.fix function will be deprecated in a future release. It is
recommended to use numpy.trunc instead, as it provides the same
functionality of truncating decimal values to their integer parts. Static type
checkers might already report a warning for the use of numpy.fix.

(gh-30168)

in-place modification of `ndarray.shape` is pending deprecation

Setting the ndarray.shape attribute directly will be deprecated in a future
release. Instead of modifying the shape in place, it is recommended to use the
numpy.reshape function. Static type checkers might already report a
warning for assignments to ndarray.shape.

(gh-30282)

Deprecation of `numpy.lib.user_array.container`

The numpy.lib.user_array.container class is deprecated and will be removed
in a future version.

(gh-30284)

Expired deprecations

Removed deprecated `MachAr` runtime discovery mechanism.

(gh-29836)

Raise `TypeError` on attempt to convert array with `ndim > 0` to scalar

Conversion of an array with ndim > 0 to a scalar was deprecated in NumPy
1.25. Now, attempting to do so raises TypeError. Ensure you extract a
single element from your array before performing this operation.

(gh-29841)

Removed numpy.linalg.linalg and numpy.fft.helper

The following were deprecated in NumPy 2.0 and have been moved to private
modules:

numpy.linalg.linalg
Use numpy.linalg instead.
numpy.fft.helper
Use numpy.fft instead.

(gh-29909)

Removed `interpolation` parameter from quantile and percentile functions

The interpolation parameter was deprecated in NumPy 1.22.0 and has been
removed from the following functions:

numpy.percentile
numpy.nanpercentile
numpy.quantile
numpy.nanquantile

Use the method parameter instead.

(gh-29973)

Removed `numpy.in1d`

numpy.in1d has been deprecated since NumPy 2.0 and is now removed in favor of numpy.isin.

(gh-29978)

Removed `numpy.ndindex.ndincr()`

The ndindex.ndincr() method has been deprecated since NumPy 1.20 and is now
removed; use next(ndindex) instead.

(gh-29980)

Removed `fix_imports` parameter from `numpy.save`

The fix_imports parameter was deprecated in NumPy 2.1.0 and is now removed.
This flag has been ignored since NumPy 1.17 and was only needed to support
loading files in Python 2 that were written in Python 3.

(gh-29984)

Removal of four undocumented `ndarray.ctypes` methods

Four undocumented methods of the ndarray.ctypes object have been removed:

_ctypes.get_data() (use _ctypes.data instead)
_ctypes.get_shape() (use _ctypes.shape instead)
_ctypes.get_strides() (use _ctypes.strides instead)
_ctypes.get_as_parameter() (use _ctypes._as_parameter_ instead)

These methods have been deprecated since NumPy 1.21.

(gh-29986)

Removed `newshape` parameter from `numpy.reshape`

The newshape parameter was deprecated in NumPy 2.1.0 and has been
removed from numpy.reshape. Pass it positionally or use shape=
on newer NumPy versions.

(gh-29994)

Removal of deprecated functions and arguments

The following long-deprecated APIs have been removed:

numpy.trapz --- deprecated since NumPy 2.0 (2023-08-18). Use numpy.trapezoid or
scipy.integrate functions instead.
disp function --- deprecated from 2.0 release and no longer functional. Use
your own printing function instead.
bias and ddof arguments in numpy.corrcoef --- these had no effect
since NumPy 1.10.

(gh-29997)

Removed `delimitor` parameter from `numpy.ma.mrecords.fromtextfile()`

The delimitor parameter was deprecated in NumPy 1.22.0 and has been
removed from numpy.ma.mrecords.fromtextfile(). Use delimiter instead.

(gh-30021)

`numpy.array2string` and `numpy.sum` deprecations finalized

The following long-deprecated APIs have been removed or converted to errors:

The style parameter has been removed from numpy.array2string.
This argument had no effect since Numpy 1.14.0. Any arguments following
it, such as formatter have now been made keyword-only.
Calling np.sum(generator) directly on a generator object now raises a
TypeError. This behavior was deprecated in NumPy 1.15.0. Use
np.sum(np.fromiter(generator)) or the python sum builtin instead.

(gh-30068)

Compatibility notes

NumPy's C extension modules have begun to use multi-phase initialisation, as
defined by PEP 489. As part of this, a new explicit check has been added that
each such module is only imported once per Python process. This comes with
the side-effect that deleting numpy from sys.modules and re-importing
it will now fail with an ImportError. This has always been unsafe, with
unexpected side-effects, though did not previously raise an error.

(gh-29030)
numpy.round now always returns a copy. Previously, it returned a view
for integer inputs for decimals >= 0 and a copy in all other cases.
This change brings round in line with ceil, floor and trunc.

(gh-29137)
Type-checkers will no longer accept calls to numpy.arange with
start as a keyword argument. This was done for compatibility with
the Array API standard. At runtime it is still possible to use
numpy.arange with start as a keyword argument.

(gh-30147)
The Macro NPY_ALIGNMENT_REQUIRED has been removed The macro was defined in
the npy_cpu.h file, so might be regarded as semi public. As it turns out,
with modern compilers and hardware it is almost always the case that
alignment is required, so numpy no longer uses the macro. It is unlikely
anyone uses it, but you might want to compile with the -Wundef flag or
equivalent to be sure.

(gh-29094)

C API changes

The NPY_SORTKIND enum has been enhanced with new variables

This is of interest if you are using PyArray_Sort or PyArray_ArgSort.
We have changed the semantics of the old names in the NPY_SORTKIND enum and
added new ones. The changes are backward compatible, and no recompilation is
needed. The new names of interest are:

NPY_SORT_DEFAULT -- default sort (same value as NPY_QUICKSORT)
NPY_SORT_STABLE -- the sort must be stable (same value as NPY_MERGESORT)
NPY_SORT_DESCENDING -- the sort must be descending

The semantic change is that NPY_HEAPSORT is mapped to NPY_QUICKSORT when used.
Note that NPY_SORT_DESCENDING is not yet implemented.

(gh-29642)

New `NPY_DT_get_constant` slot for DType constant retrieval

A new slot NPY_DT_get_constant has been added to the DType API, allowing
dtype implementations to provide constant values such as machine limits and
special values. The slot function has the signature:

int get_constant(PyArray_Descr *descr, int constant_id, void *ptr)

It returns 1 on success, 0 if the constant is not available, or -1 on error.
The function is always called with the GIL held and may write to unaligned memory.

Integer constants (marked with the 1 << 16 bit) return npy_intp values,
while floating-point constants return values of the dtype's native type.

Implementing this can be used by user DTypes to provide numpy.finfo values.

(gh-29836)

A new `PyUFunc_AddLoopsFromSpecs` convenience function has been added to the C API.

This function allows adding multiple ufunc loops from their specs in one call
using a NULL-terminated array of PyUFunc_LoopSlot structs. It allows
registering sorting and argsorting loops using the new ArrayMethod API.

(gh-29900)

New Features

Let np.size accept multiple axes.

(gh-29240)
Extend numpy.pad to accept a dictionary for the pad_width argument.

(gh-29273)

`'same_value'` for casting by value

The casting kwarg now has a 'same_value' option that checks the actual
values can be round-trip cast without changing value. Currently it is only
implemented in ndarray.astype. This will raise a ValueError if any of the
values in the array would change as a result of the cast, including rounding of
floats or overflowing of ints.

(gh-29129)

`StringDType` fill_value support in `numpy.ma.MaskedArray`

Masked arrays now accept and preserve a Python str as their fill_value
when using the variable‑width StringDType (kind 'T'), including through
slicing and views. The default is 'N/A' and may be overridden by any valid
string. This fixes issue gh‑29421
and was implemented in pull request gh‑29423.

(gh-29423)

`ndmax` option for `numpy.array`

The ndmax option is now available for numpy.array.
It explicitly limits the maximum number of dimensions created from nested sequences.

This is particularly useful when creating arrays of list-like objects with dtype=object.
By default, NumPy recurses through all nesting levels to create the highest possible
dimensional array, but this behavior may not be desired when the intent is to preserve
nested structures as objects. The ndmax parameter provides explicit control over
this recursion depth.

# Default behavior: Creates a 2D array
>>> a = np.array([[1, 2], [3, 4]], dtype=object)
>>> a
array([[1, 2],
       [3, 4]], dtype=object)
>>> a.shape
(2, 2)

# With ndmax=1: Creates a 1D array
>>> b = np.array([[1, 2], [3, 4]], dtype=object, ndmax=1)
>>> b
array([list([1, 2]), list([3, 4])], dtype=object)
>>> b.shape
(2,)

(gh-29569)

Warning emitted when using `where` without `out`

Ufuncs called with a where mask and without an out positional or kwarg will
now emit a warning. This usage tends to trip up users who expect some value in
output locations where the mask is False (the ufunc will not touch those
locations). The warning can be suppressed by using out=None.

(gh-29813)

DType sorting and argsorting supports the ArrayMethod API

User-defined dtypes can now implement custom sorting and argsorting using the
ArrayMethod API. This mechanism can be used in place of the
PyArray_ArrFuncs slots which may be deprecated in the future.

The sorting and argsorting methods are registered by passing the arraymethod
specs that implement the operations to the new PyUFunc_AddLoopsFromSpecs
function. See the ArrayMethod API documentation for details.

(gh-29900)

New `__numpy_dtype__` protocol

NumPy now has a new __numpy_dtype__ protocol. NumPy will check
for this attribute when converting to a NumPy dtype via np.dtype(obj)
or any dtype= argument.

Downstream projects are encouraged to implement this for all dtype like
objects which may previously have used a .dtype attribute that returned
a NumPy dtype.
We expect to deprecate .dtype in the future to prevent interpreting
array-like objects with a .dtype attribute as a dtype.
If you wish you can implement __numpy_dtype__ to ensure an earlier
warning or error (.dtype is ignored if this is found).

(gh-30179)

Improvements

Fix `flatiter` indexing edge cases

The flatiter object now shares the same index preparation logic as
ndarray, ensuring consistent behavior and fixing several issues where
invalid indices were previously accepted or misinterpreted.

Key fixes and improvements:

Stricter index validation
- Boolean non-array indices like arr.flat[[True, True]] were
  incorrectly treated as arr.flat[np.array([1, 1], dtype=int)].
  They now raise an index error. Note that indices that match the
  iterator's shape are expected to not raise in the future and be
  handled as regular boolean indices. Use np.asarray(<index>) if
  you want to match that behavior.
- Float non-array indices were also cast to integer and incorrectly
  treated as arr.flat[np.array([1.0, 1.0], dtype=int)]. This is now
  deprecated and will be removed in a future version.
- 0-dimensional boolean indices like arr.flat[True] are also
  deprecated and will be removed in a future version.
Consistent error types:

Certain invalid flatiter indices that previously raised ValueError
now correctly raise IndexError, aligning with ndarray behavior.
Improved error messages:

The error message for unsupported index operations now provides more
specific details, including explicitly listing the valid index types,
instead of the generic IndexError: unsupported index operation.

(gh-28590)

Improved error handling in `np.quantile`

[np.quantile]{.title-ref} now raises errors if:

All weights are zero
At least one weight is np.nan
At least one weight is np.inf

(gh-28595)

Improved error message for `assert_array_compare`

The error message generated by assert_array_compare which is used by functions
like assert_allclose, assert_array_less etc. now also includes information
about the indices at which the assertion fails.

(gh-29112)

Show unit information in `repr` for `datetime64("NaT")`

When a datetime64 object is "Not a Time" (NaT), its __repr__ method now
includes the time unit of the datetime64 type. This makes it consistent with
the behavior of a timedelta64 object.

(gh-29396)

Performance increase for scalar calculations

The speed of calculations on scalars has been improved by about a factor 6 for
ufuncs that take only one input (like np.sin(scalar)), reducing the speed
difference from their math equivalents from a factor 19 to 3 (the speed
for arrays is left unchanged).

(gh-29819)

`numpy.finfo` Refactor

The numpy.finfo class has been completely refactored to obtain floating-point
constants directly from C compiler macros rather than deriving them at runtime.
This provides better accuracy, platform compatibility and corrected
several attribute calculations:

Constants like eps, min, max, smallest_normal, and
smallest_subnormal now come directly from standard C macros (FLT_EPSILON,
DBL_MIN, etc.), ensuring platform-correct values.
The deprecated MachAr runtime discovery mechanism has been removed.
Derived attributes have been corrected to match standard definitions:
machep and negep now use int(log2(eps)); nexp accounts for
all exponent patterns; nmant excludes the implicit bit; and minexp
follows the C standard definition.
longdouble constants, Specifically smallest_normal now follows the
C standard definitions as per respecitive platform.
Special handling added for PowerPC's IBM double-double format.
New test suite added in test_finfo.py to validate all
finfo properties against expected machine arithmetic values for
float16, float32, and float64 types.

(gh-29836)

Multiple axes are now supported in `numpy.trim_zeros`

The axis argument of numpy.trim_zeros now accepts a sequence; for example
np.trim_zeros(x, axis=(0, 1)) will trim the zeros from a multi-dimensional
array x along axes 0 and 1. This fixes issue
gh‑29945 and was implemented
in pull request gh‑29947.

(gh-29947)

Runtime signature introspection support has been significantly improved

Many NumPy functions, classes, and methods that previously raised
ValueError when passed to inspect.signature() now return meaningful
signatures. This improves support for runtime type checking, IDE autocomplete,
documentation generation, and runtime introspection capabilities across the
NumPy API.

Over three hundred classes and functions have been updated in total, including,
but not limited to, core classes such as ndarray, generic, dtype,
ufunc, broadcast, nditer, etc., most methods of ndarray and
scalar types, array constructor functions (array, empty, arange,
fromiter, etc.), all ufuncs, and many other commonly used functions,
including dot, concat, where, bincount, can_cast, and
numerous others.

(gh-30208)

Performance improvements and changes

Performance improvements to `np.unique` for string dtypes

The hash-based algorithm for unique extraction provides an order-of-magnitude
speedup on large string arrays. In an internal benchmark with about 1 billion
string elements, the hash-based np.unique completed in roughly 33.5 seconds,
compared to 498 seconds with the sort-based method -- about 15× faster for
unsorted unique operations on strings. This improvement greatly reduces the
time to find unique values in very large string datasets.

(gh-28767)

Rewrite of `np.ndindex` using `itertools.product`

The numpy.ndindex function now uses itertools.product internally,
providing significant improvements in performance for large iteration spaces,
while maintaining the original behavior and interface. For example, for an
array of shape (50, 60, 90) the NumPy ndindex benchmark improves
performance by a factor 5.2.

(gh-29165)

Performance improvements to `np.unique` for complex dtypes

The hash-based algorithm for unique extraction now also supports
complex dtypes, offering noticeable performance gains.

In our benchmarks on complex128 arrays with 200,000 elements,
the hash-based approach was about 1.4--1.5× faster
than the sort-based baseline when there were 20% of unique values,
and about 5× faster when there were 0.2% of unique values.

(gh-29537)

Changes

Multiplication between a string and integer now raises OverflowError instead
of MemoryError if the result of the multiplication would create a string that
is too large to be represented. This follows Python's behavior.

(gh-29060)
The accuracy of np.quantile and np.percentile for 16- and 32-bit
floating point input data has been improved.

(gh-29105)

`unique_values` for string dtypes may return unsorted data

np.unique now supports hash‐based duplicate removal for string dtypes.
This enhancement extends the hash-table algorithm to byte strings ('S'),
Unicode strings ('U'), and the experimental string dtype ('T', StringDType).
As a result, calling np.unique() on an array of strings will use
the faster hash-based method to obtain unique values.
Note that this hash-based method does not guarantee that the returned unique values will be sorted.
This also works for StringDType arrays containing None (missing values)
when using equal_nan=True (treating missing values as equal).

(gh-28767)

Modulate dispatched x86 CPU features

IMPORTANT: The default setting for cpu-baseline on x86 has been raised
to x86-64-v2 microarchitecture. This can be changed to none during build
time to support older CPUs, though SIMD optimizations for pre-2009 processors
are no longer maintained.

NumPy has reorganized x86 CPU features into microarchitecture-based groups
instead of individual features, aligning with Linux distribution standards and
Google Highway requirements.

Key changes:

Replaced individual x86 features with microarchitecture levels: X86_V2,
X86_V3, and X86_V4
Raised the baseline to X86_V2
Improved - operator behavior to properly exclude successor features that
imply the excluded feature
Added meson redirections for removed feature names to maintain backward
compatibility
Removed compiler compatibility workarounds for partial feature support (e.g.,
AVX512 without mask operations)
Removed legacy AMD features (XOP, FMA4) and discontinued Intel Xeon Phi
support

New Feature Group Hierarchy:

Name Implies Includes

X86_V2 SSE SSE2 SSE3 SSSE3 SSE4_1 SSE4_2 POPCNT CX16 LAHF
X86_V3 X86_V2 AVX AVX2 FMA3 BMI BMI2 LZCNT F16C MOVBE
X86_V4 X86_V3 AVX512F AVX512CD AVX512VL AVX512BW AVX512DQ
AVX512_ICL X86_V4 AVX512VBMI AVX512VBMI2 AVX512VNNI AVX512BITALG AVX512VPOPCNTDQ AVX512IFMA VAES GFNI VPCLMULQDQ
AVX512_SPR AVX512_ICL AVX512FP16

These groups correspond to CPU generations:

X86_V2: x86-64-v2 microarchitectures (CPUs since 2009)
X86_V3: x86-64-v3 microarchitectures (CPUs since 2015)
X86_V4: x86-64-v4 microarchitectures (AVX-512 capable CPUs)
AVX512_ICL: Intel Ice Lake and similar CPUs
AVX512_SPR: Intel Sapphire Rapids and newer CPUs

On 32-bit x86, cx16 is excluded from X86_V2.

Documentation has been updated with details on using these new feature groups
with the current meson build system.

(gh-28896)

Fix bug in `matmul` for non-contiguous out kwarg parameter

In some cases, if out was non-contiguous, np.matmul would cause memory
corruption or a c-level assert. This was new to v2.3.0 and fixed in v2.3.1.

(gh-29179)

`__array_interface__` with NULL pointer changed

The array interface now accepts NULL pointers (NumPy will do its own dummy
allocation, though). Previously, these incorrectly triggered an undocumented
scalar path. In the unlikely event that the scalar path was actually desired,
you can (for now) achieve the previous behavior via the correct scalar path by
not providing a data field at all.

(gh-29338)

`unique_values` for complex dtypes may return unsorted data

np.unique now supports hash‐based duplicate removal for complex dtypes. This
enhancement extends the hash‐table algorithm to all complex types ('c'), and
their extended precision variants. The hash‐based method provides faster
extraction of unique values but does not guarantee that the result will be
sorted.

(gh-29537)

Sorting `kind='heapsort'` now maps to `kind='quicksort'`

It is unlikely that this change will be noticed, but if you do see a change in
execution time or unstable argsort order, that is likely the cause. Please let
us know if there is a performance regression. Congratulate us if it is improved
:)

(gh-29642)

`numpy.typing.DTypeLike` no longer accepts `None`

The type alias numpy.typing.DTypeLike no longer accepts None. Instead of

dtype: DTypeLike = None

it should now be

dtype: DTypeLike | None = None

instead.

(gh-29739)

The npymath and npyrandom libraries now have a .lib rather than a
.a file extension on win-arm64, for compatibility for building with MSVC
and setuptools. Please note that using these static libraries is
discouraged and for existing projects using it, it's best to use it with a
matching compiler toolchain, which is clang-cl on Windows on Arm.

(gh-29750)

`v2.3.5`: 2.3.5 (Nov 16, 2025)

Compare Source

NumPy 2.3.5 Release Notes

The NumPy 2.3.5 release is a patch release split between a number of maintenance
updates and bug fixes. This release supports Python versions 3.11-3.14.

Contributors

A total of 10 people contributed to this release. People with a "+" by their
names contributed a patch for the first time.

Aaron Kollasch +
Charles Harris
Joren Hammudoglu
Matti Picus
Nathan Goldbaum
Rafael Laboissière +
Sayed Awad
Sebastian Berg
Warren Weckesser
Yasir Ashfaq +

Pull requests merged

A total of 16 pull requests were merged for this release.

#29979: MAINT: Prepare 2.3.x for further development
#30026: SIMD, BLD: Backport FPMATH mode on x86-32 and filter successor...
#30029: MAINT: Backport write_release.py
#30041: TYP: Various typing updates
#30059: BUG: Fix np.strings.slice if stop=None or start and stop >= len...
#30063: BUG: Fix np.strings.slice if start > stop
#30076: BUG: avoid negating INT_MIN in PyArray_Round implementation (#30071)
#30090: BUG: Fix resize when it contains references (#29970)
#30129: BLD: update scipy-openblas, use -Dpkg_config_path (#30049)
#30130: BUG: Avoid compilation error of wrapper file generated with SWIG...
#30157: BLD: use scipy-openblas 0.3.30.7 (#30132)
#30158: DOC: Remove nonexistent order parameter docs of ma.asanyarray...
#30185: BUG: Fix check of PyMem_Calloc return value. (#30176)
#30217: DOC: fix links for newly rebuilt numpy-tutorials site
#30218: BUG: Fix build on s390x with clang (#30214)
#30237: ENH: Make FPE blas check a runtime check for all apple arm systems

`v2.3.4`: (Oct 15, 2025)

Compare Source

NumPy 2.3.4 Release Notes

The NumPy 2.3.4 release is a patch release split between a number of maintenance
updates and bug fixes. This release supports Python versions 3.11-3.14. This
release is based on Python 3.14.0 final.

Changes

The npymath and npyrandom libraries now have a .lib rather than a
.a file extension on win-arm64, for compatibility for building with MSVC and
setuptools. Please note that using these static libraries is discouraged
and for existing projects using it, it's best to use it with a matching
compiler toolchain, which is clang-cl on Windows on Arm.

(gh-29750)

Contributors

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

!DWesl
Charles Harris
Christian Barbia +
Evgeni Burovski
Joren Hammudoglu
Maaz +
Mateusz Sokół
Matti Picus
Nathan Goldbaum
Ralf Gommers
Riku Sakamoto +
Sandeep Gupta +
Sayed Awad
Sebastian Berg
Sergey Fedorov +
Warren Weckesser
dependabot[bot]

Pull requests merged

A total of 30 pull requests were merged for this release.

#29725: MAINT: Prepare 2.3.x for further development
#29781: MAINT: Pin some upstream dependences
#29782: BLD: enable x86-simd-sort to build on KNL with -mavx512f
#29783: BUG: Include python-including headers first (#29281)
#29784: TYP: fix np.number and np.*integer method declaration
#29785: TYP: mypy 1.18.1
#29788: TYP: replace scalar type __init__ with __new__
#29790: BUG: Fix dtype refcount in __array__ (#29715)
#29791: TYP: fix method declarations in floating, timedelta64, and datetime64Backport
#29792: MAINT: delete unused variables in unary logical dispatch
#29797: BUG: Fix pocketfft umath strides for AIX compatibility (#29768)
#29798: BUG: np.setbufsize should raise ValueError for negative input
#29799: BUG: Fix assert in nditer buffer setup
#29800: BUG: Stable ScalarType ordering
#29838: TST: Pin pyparsing to avoid matplotlib errors.
#29839: BUG: linalg: emit a MemoryError on a malloc failure (#29811)
#29840: BLD: change file extension for libnpymath on win-arm64 from .a...
#29864: CI: Fix loongarch64 CI (#29856)
#29865: TYP: Various typing fixes
#29910: BUG: Fix float16-sort failures on 32-bit x86 MSVC (#29908)
#29911: TYP: add missing __slots__ (#29901)
#29913: TYP: wrong argument defaults in testing._private (#29902)
#29920: BUG: avoid segmentation fault in string_expandtabs_length_promoter
#29921: BUG: Fix INT_MIN % -1 to return 0 for all signed integer types...
#29922: TYP: minor fixes related to errstate (#29914)
#29923: TST: use requirements/test_requirements across CI (#29919)
#29926: BUG: fix negative samples generated by Wald distribution (#29609)
#29940: MAINT: Bump pypa/cibuildwheel from 3.1.4 to 3.2.1
#29949: STY: rename @classmethod arg to cls
#29950: MAINT: Simplify string arena growth strategy (#29885)

`v2.3.3`: 2.3.3 (Sep 9, 2025)

Compare Source

NumPy 2.3.3 Release Notes

The NumPy 2.3.3 release is a patch release split between a number of maintenance
updates and bug fixes. This release supports Python versions 3.11-3.14. Note
that the 3.14.0 final is currently expected in Oct, 2025. This release is based
on 3.14.0rc2.

Contributors

A total of 13 people contributed to this release. People with a "+" by their
names contributed a patch for the first time.

Aleksandr A. Voyt +
Bernard Roesler +
Charles Harris
Hunter Hogan +
Joren Hammudoglu
Maanas Arora
Matti Picus
Nathan Goldbaum
Raghuveer Devulapalli
Sanjay Kumar Sakamuri Kamalakar +
Tobias Markus +
Warren Weckesser
Zebreus +

Pull requests merged

A total of 23 pull requests were merged for this release.

#29440: MAINT: Prepare 2.3.x for further development.
#29446: BUG: Fix test_configtool_pkgconfigdir to resolve PKG_CONFIG_DIR...
#29447: BLD: allow targeting webassembly without emscripten
#29460: MAINT: Backport write_release.py
#29473: MAINT: Bump pypa/cibuildwheel from 3.1.0 to 3.1.2
#29500: BUG: Always return a real dtype from linalg.cond (gh-18304) (#29333)
#29501: MAINT: Add .file entry to all .s SVML files
#29556: BUG: Casting from one timedelta64 to another didn't handle NAT.
#29562: BLD: update vendored Meson to 1.8.3 [wheel build]
#29563: BUG: Fix metadata not roundtripping when pickling datetime (#29555)
#29587: TST: update link and version for Intel SDE download
#29593: TYP: add sorted kwarg to unique
#29672: MAINT: Update pythoncapi-compat from main.
#29673: MAINT: Update cibuildwheel.
#29674: MAINT: Fix typo in wheels.yml
#29683: BUG, BLD: Correct regex for ppc64 VSX3/VSX4 feature detection
#29684: TYP: ndarray.fill() takes no keyword arguments
#29685: BUG: avoid thread-unsafe refcount check in temp elision
#29687: CI: replace comment-hider action in mypy_primer workflow
#29689: BLD: Add missing <unordered_map> include
#29691: BUG: use correct input dtype in flatiter assignment
#29700: TYP: fix np.bool method declarations
#29701: BUG: Correct ambiguous logic for s390x CPU feature detection

`v2.3.2`: (Jul 24, 2025)

Compare Source

NumPy 2.3.2 Release Notes

The NumPy 2.3.2 release is a patch release with a number of bug fixes
and maintenance updates. The highlights are:

Wheels for Python 3.14.0rc1
PyPy updated to the latest stable release
OpenBLAS updated to 0.3.30

This release supports Python versions 3.11-3.14

Contributors

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

!DWesl
Charles Harris
Joren Hammudoglu
Maanas Arora
Marco Edward Gorelli
Matti Picus
Nathan Goldbaum
Sebastian Berg
kostayScr +

Pull requests merged

A total of 16 pull requests were merged for this release.

#29256: MAINT: Prepare 2.3.x for further development
#29283: TYP: Work around a mypy issue with bool arrays (#29248)
#29284: BUG: fix fencepost error in StringDType internals
#29287: BUG: handle case in mapiter where descriptors might get replaced...
#29350: BUG: Fix shape error path in array-interface
#29412: BUG: Allow reading non-npy files in npz and add test
#29413: TST: Avoid uninitialized values in test (#29341)
#29414: BUG: Fix reference leakage for output arrays in reduction functions
#29415: BUG: fix casting issue in center, ljust, rjust, and zfill (#29369)
#29416: TYP: Fix overloads in np.char.array and np.char.asarray...
#29417: BUG: Any dtype should call square on arr \*\* 2 (#29392)
#29424: MAINT: use a stable pypy release in CI
#29425: MAINT: Support python 314rc1
#29429: MAINT: Update highway to match main.
#29430: BLD: use github to build macos-arm64 wheels with OpenBLAS and...
#29437: BUG: fix datetime/timedelta hash memory leak (#29411)

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codecov · 2025-04-14T08:13:47Z

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All modified and coverable lines are covered by tests ✅

Project coverage is 30.31%. Comparing base (8bd267a) to head (b1e56bd).
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@@            Coverage Diff             @@
##             main     #574      +/-   ##
==========================================
+ Coverage   30.24%   30.31%   +0.07%     
==========================================
  Files          80       80              
  Lines       10496    10573      +77     
  Branches     1401     1426      +25     
==========================================
+ Hits         3174     3205      +31     
- Misses       7217     7260      +43     
- Partials      105      108       +3

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Release Notes

v2.4.0: 2.4.0 (Dec 20, 2025)

NumPy 2.4.0 Release Notes

Highlights

Deprecations

Setting the strides attribute is deprecated

Positional out argument to np.maximum, np.minimum is deprecated

align= must be passed as boolean to np.dtype()

Assertion and warning control utilities are deprecated

np.fix is pending deprecation

in-place modification of ndarray.shape is pending deprecation

Deprecation of numpy.lib.user_array.container

Expired deprecations

Removed deprecated MachAr runtime discovery mechanism.

Raise TypeError on attempt to convert array with ndim > 0 to scalar

Removed numpy.linalg.linalg and numpy.fft.helper

Removed interpolation parameter from quantile and percentile functions

Removed numpy.in1d

Removed numpy.ndindex.ndincr()

Removed fix_imports parameter from numpy.save

Removal of four undocumented ndarray.ctypes methods

Removed newshape parameter from numpy.reshape

Removal of deprecated functions and arguments

Removed delimitor parameter from numpy.ma.mrecords.fromtextfile()

numpy.array2string and numpy.sum deprecations finalized

Compatibility notes

C API changes

The NPY_SORTKIND enum has been enhanced with new variables

New NPY_DT_get_constant slot for DType constant retrieval

A new PyUFunc_AddLoopsFromSpecs convenience function has been added to the C API.

New Features

'same_value' for casting by value

StringDType fill_value support in numpy.ma.MaskedArray

ndmax option for numpy.array

Warning emitted when using where without out

DType sorting and argsorting supports the ArrayMethod API

New __numpy_dtype__ protocol

Improvements

Fix flatiter indexing edge cases

Improved error handling in np.quantile

Improved error message for assert_array_compare

Show unit information in __repr__ for datetime64("NaT")

Performance increase for scalar calculations

numpy.finfo Refactor

Multiple axes are now supported in numpy.trim_zeros

Runtime signature introspection support has been significantly improved

Performance improvements and changes

Performance improvements to np.unique for string dtypes

Rewrite of np.ndindex using itertools.product

Performance improvements to np.unique for complex dtypes

Changes

unique_values for string dtypes may return unsorted data

Modulate dispatched x86 CPU features

Fix bug in matmul for non-contiguous out kwarg parameter

__array_interface__ with NULL pointer changed

unique_values for complex dtypes may return unsorted data

Sorting kind='heapsort' now maps to kind='quicksort'

numpy.typing.DTypeLike no longer accepts None

v2.3.5: 2.3.5 (Nov 16, 2025)

NumPy 2.3.5 Release Notes

Contributors

Pull requests merged

v2.3.4: (Oct 15, 2025)

NumPy 2.3.4 Release Notes

Changes

Contributors

Pull requests merged

v2.3.3: 2.3.3 (Sep 9, 2025)

NumPy 2.3.3 Release Notes

Contributors

Pull requests merged

v2.3.2: (Jul 24, 2025)

NumPy 2.3.2 Release Notes

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`v2.4.0`: 2.4.0 (Dec 20, 2025)

Setting the `strides` attribute is deprecated

Positional `out` argument to `np.maximum`, `np.minimum` is deprecated

`align=` must be passed as boolean to `np.dtype()`

`np.fix` is pending deprecation

in-place modification of `ndarray.shape` is pending deprecation

Deprecation of `numpy.lib.user_array.container`

Removed deprecated `MachAr` runtime discovery mechanism.

Raise `TypeError` on attempt to convert array with `ndim > 0` to scalar

Removed `interpolation` parameter from quantile and percentile functions

Removed `numpy.in1d`

Removed `numpy.ndindex.ndincr()`

Removed `fix_imports` parameter from `numpy.save`

Removal of four undocumented `ndarray.ctypes` methods

Removed `newshape` parameter from `numpy.reshape`

Removed `delimitor` parameter from `numpy.ma.mrecords.fromtextfile()`

`numpy.array2string` and `numpy.sum` deprecations finalized

New `NPY_DT_get_constant` slot for DType constant retrieval

A new `PyUFunc_AddLoopsFromSpecs` convenience function has been added to the C API.

`'same_value'` for casting by value

`StringDType` fill_value support in `numpy.ma.MaskedArray`

`ndmax` option for `numpy.array`

Warning emitted when using `where` without `out`

New `__numpy_dtype__` protocol

Fix `flatiter` indexing edge cases

Improved error handling in `np.quantile`

Improved error message for `assert_array_compare`

Show unit information in `repr` for `datetime64("NaT")`

`numpy.finfo` Refactor

Multiple axes are now supported in `numpy.trim_zeros`

Performance improvements to `np.unique` for string dtypes

Rewrite of `np.ndindex` using `itertools.product`

Performance improvements to `np.unique` for complex dtypes

`unique_values` for string dtypes may return unsorted data

Fix bug in `matmul` for non-contiguous out kwarg parameter

`__array_interface__` with NULL pointer changed

`unique_values` for complex dtypes may return unsorted data

Sorting `kind='heapsort'` now maps to `kind='quicksort'`

`numpy.typing.DTypeLike` no longer accepts `None`

`v2.3.5`: 2.3.5 (Nov 16, 2025)

`v2.3.4`: (Oct 15, 2025)

`v2.3.3`: 2.3.3 (Sep 9, 2025)

`v2.3.2`: (Jul 24, 2025)