==========================
SciPy 1.5.4 Release Notes
==========================

.. contents::

SciPy 1.5.4 is a bug-fix release with no new features
compared to 1.5.3. Importantly, wheels are now available
for Python 3.9 and a more complete fix has been applied for
issues building with XCode 12.

Authors
=======

* Peter Bell
* CJ Carey
* Andrew McCluskey +
* Andrew Nelson
* Tyler Reddy
* Eli Rykoff +
* Ian Thomas +

A total of 7 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 1.5.4
-----------------------

* `#12763 <https://github.com/scipy/scipy/issues/12763>`__: ndimage.fourier_ellipsoid segmentation fault
* `#12789 <https://github.com/scipy/scipy/issues/12789>`__: TestConvolve2d.test_large_array failing on Windows ILP64 CI job
* `#12857 <https://github.com/scipy/scipy/issues/12857>`__: sparse A[0,:] = ndarray is ok, A[:,0] = ndarray ValueError from...
* `#12860 <https://github.com/scipy/scipy/issues/12860>`__: BUG: Build failure with Xcode 12
* `#12935 <https://github.com/scipy/scipy/issues/12935>`__: Failure to build with Python 3.9.0 on macOS
* `#12966 <https://github.com/scipy/scipy/issues/12966>`__: MAINT: lint_diff.py on some backport PRs
* `#12988 <https://github.com/scipy/scipy/issues/12988>`__: BUG: Highly multi-dimensional \`gaussian_kde\` giving \`-inf\`...

Pull requests for 1.5.4
-----------------------

* `#12790 <https://github.com/scipy/scipy/pull/12790>`__: TST: Skip TestConvolve2d.test_large_array if not enough memory
* `#12851 <https://github.com/scipy/scipy/pull/12851>`__: BUG: sparse: fix inner indexed assignment of a 1d array
* `#12875 <https://github.com/scipy/scipy/pull/12875>`__: BUG: segfault in ndimage.fourier_ellipsoid with length-1 dims
* `#12937 <https://github.com/scipy/scipy/pull/12937>`__: CI: macOS3.9 testing
* `#12957 <https://github.com/scipy/scipy/pull/12957>`__: MAINT: fixes XCode 12/ python 3.9.0 build for 1.5.x maint branch
* `#12959 <https://github.com/scipy/scipy/pull/12959>`__: CI: add Windows Python 3.9 to CI
* `#12974 <https://github.com/scipy/scipy/pull/12974>`__: MAINT: Run lint_diff.py against the merge target and only for...
* `#12978 <https://github.com/scipy/scipy/pull/12978>`__: DOC: next_fast_len output doesn't match docstring
* `#12979 <https://github.com/scipy/scipy/pull/12979>`__: BUG: fft.next_fast_len should accept keyword arguments
* `#12989 <https://github.com/scipy/scipy/pull/12989>`__: BUG: improved the stability of kde for highly (1000s) multi-dimension...
* `#13017 <https://github.com/scipy/scipy/pull/13017>`__: BUG: Add explicit cast to _tmp sum.
* `#13022 <https://github.com/scipy/scipy/pull/13022>`__: TST: xfail test_maxiter_worsening()