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BUG: np.quantile / ndarray.partition become much slower than a full sort once kth density crosses ~50%

00 - Bug

Status: Open.

#32187 In numpy/numpy;

· johannfaouzi opened on Aug 4, 2026

Remove np.matrix keepdims workaround in nanvar/nanstd (behaviour change)

Status: Open.

#32170 In numpy/numpy;

· shipitdev opened on Aug 2, 2026

BUG: concurrent iterative lstsq calls are non-deterministic with OpenBLAS

57 - Close?Issues which may be closable unless discussion continuedIssues which may be closable unless discussion continued

Status: Open.

#32168 In numpy/numpy;

· ChengYen-Tang opened on Aug 2, 2026

PERF: np.isin is very slow for StringDType

01 - Enhancement

component: numpy.stringsString dtypes and functionsString dtypes and functions

Status: Open.

#32161 In numpy/numpy;

· ngoldbaum opened on Jul 31, 2026

PERF: -ftrapping-math slows down np.less float32 loops on Apple AArch64

00 - Bug

Status: Open.

#32159 In numpy/numpy;

· a-eridani opened on Jul 31, 2026

BUG: segfault in stringdtype fancy-index array assignemnt

00 - Bug

Status: Open.

#32153 In numpy/numpy;

· ngoldbaum opened on Jul 30, 2026

BUG: Compiling fortran programme using f2py and flang leads to poorly behaving parameters

00 - Bug

Status: Open.

#32148 In numpy/numpy;

· TobiasDijkhuis opened on Jul 30, 2026

PERF: np.sin(a, where=) is slower than computing the whole array

00 - Bug

Status: Open.

#32136 In numpy/numpy;

· a-eridani opened on Jul 28, 2026

ENH: support where= in MaskedArray reductions

01 - Enhancement

Status: Open.

#32126 In numpy/numpy;

· shoumikchakravarty-dev opened on Jul 28, 2026

TYP: Type mismatch of np.indices converted to list, real type is list[list[int]], reported type is list[int]

41 - Static typing

Status: Open.

#32109 In numpy/numpy;

· Famlam opened on Jul 26, 2026

BUG: np.positive ufunc and unary + operator fail on boolean arrays, while binary arithmetic works

00 - Bug

component: numpy.ufunc

Status: Open.

#32100 In numpy/numpy;

· qiqicliff opened on Jul 25, 2026

BUG: numpy int64/float64 comparisons are inexact

00 - Bug

Status: Open.

#32071 In numpy/numpy;

· sehoffmann opened on Jul 23, 2026