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# SciPy 1.11.3 Release Notes

SciPy 1.11.3 is a bug-fix release with no new features compared to 1.11.2.

## Authors

- Name (commits)

- Jake Bowhay (2)

- CJ Carey (1)

- Colin Carroll (1) +

- Anirudh Dagar (2)

- drestebon (1) +

- Ralf Gommers (5)

- Matt Haberland (2)

- Julien Jerphanion (1)

- Uwe L. Korn (1) +

- Ellie Litwack (2)

- Andrew Nelson (5)

- Bharat Raghunathan (1)

- Tyler Reddy (37)

- Søren Fuglede Jørgensen (2)

- Hielke Walinga (1) +

- Warren Weckesser (1)

- Bernhard M. Wiedemann (1)

A total of 17 people contributed to this release. People with a “+” by their names contributed a patch for the first time. This list of names is automatically generated, and may not be fully complete.

### Issues closed for 1.11.3

- #15093: BUG: scipy.optimize’s trust-constr algorithm hangs when keep-feasible…

- #15273: freqz: suboptimal performance for worN=2**n+1, include_nyquist=True…

- #17269: Bug in scipy.sparse.csgraph.min_weight_full_bipartite_matching

- #17289: BUG: Different results between numpy.fft.rfft and scipy.signal.freqz

- #18716: Buffer dtype mismatch, expected ‘ITYPE_t’ but got ‘long’

- #18782: BUG: johnsonsu distribution no longer accepts integer `b` parameter

- #18922: BUG: dev.py has `distutils` usage

- #19101: BUG: mesonpy embeds random path in .pyx files

- #19103: BUG: Regression in 1.11.2: optimize.least_squares with method=’trf’…

- #19132: BUG: Build fails on latest commit

- #19149: BUG: scipy.sparse.csgraph.laplacian raises AttributeError on…

- #19197: BUG: Incorrect sampling from zero rank covariance

### Pull requests for 1.11.3

- #17633: BUG: add infeasibility checks to min_weight_full_bipartite_matching

- #18784: BUG: Allow johnsonsu parameters to be floats

- #18913: BUG: sparse.csgraph: Support int64 indices in traversal.pyx

- #18924: BUG: Fix python3.12 distutils dev.py build

- #18956: BUG: trust-constr Bounds exclusive

- #19076: MAINT: should not be using np.float64() on arrays

- #19084: REL, MAINT: prep for 1.11.3

- #19111: BUG: Fixes #19103 by adding back make_strictly_feasible to lsq…

- #19123: BLD: Avoid absolute pathnames in .pyx files

- #19135: MAINT: signal: Remove the cval parameter from the private function…

- #19139: BLD: revert to using published wheels [wheel build]

- #19156: BUG: Support sparse arrays in scipy.sparse.csgraph.laplacian

- #19199: MAINT: stats.CovViaEigendecomposition: fix `_LA` attribute…

- #19200: TST: fix `TestODR.test_implicit` test failure with tolerance…

- #19208: BUG: freqz rfft grid fix

- #19280: MAINT: newton, make sure x0 is an inexact type

- #19286: BUG: stats: fix build failure due to incorrect Boost policies…

- #19290: BLD: add float.h include to `_fpumode.c`, fixes Clang on Windows…

- #19299: MAINT: fix libquadmath licence