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# NumPy 1.22.2 Release Notes

The NumPy 1.22.2 is maintenance release that fixes bugs discovered after the 1.22.1 release. Notable fixes are:

- Several build related fixes for downstream projects and other platforms.

- Various Annotation fixes/additions.

- Numpy wheels for Windows will use the 1.41 tool chain, fixing downstream link problems for projects using NumPy provided libraries on Windows.

- Deal with CVE-2021-41495 complaint.

The Python versions supported for this release are 3.8-3.10.

## Contributors

A total of 14 people contributed to this release. People with a “+” by their names contributed a patch for the first time.

- Andrew J. Hesford +

- Bas van Beek

- Brénainn Woodsend +

- Charles Harris

- Hood Chatham

- Janus Heide +

- Leo Singer

- Matti Picus

- Mukulika Pahari

- Niyas Sait

- Pearu Peterson

- Ralf Gommers

- Sebastian Berg

- Serge Guelton

## Pull requests merged

A total of 21 pull requests were merged for this release.

- #20842: BLD: Add NPY_DISABLE_SVML env var to opt out of SVML

- #20843: BUG: Fix build of third party extensions with Py_LIMITED_API

- #20844: TYP: Fix pyright being unable to infer the `real` and `imag`…

- #20845: BUG: Fix comparator function signatures

- #20906: BUG: Avoid importing `numpy.distutils` on import numpy.testing

- #20907: MAINT: remove outdated mingw32 fseek support

- #20908: TYP: Relax the return type of `np.vectorize`

- #20909: BUG: fix f2py’s define for threading when building with Mingw

- #20910: BUG: distutils: fix building mixed C/Fortran extensions

- #20912: DOC,TST: Fix Pandas code example as per new release

- #20935: TYP, MAINT: Add annotations for `flatiter.__setitem__`

- #20936: MAINT, TYP: Added missing where typehints in `fromnumeric.pyi`

- #20937: BUG: Fix build_ext interaction with non numpy extensions

- #20938: BUG: Fix missing intrinsics for windows/arm64 target

- #20945: REL: Prepare for the NumPy 1.22.2 release.

- #20982: MAINT: f2py: don’t generate code that triggers `-Wsometimes-uninitialized`.

- #20983: BUG: Fix incorrect return type in reduce without initial value

- #20984: ENH: review return values for PyArray_DescrNew

- #20985: MAINT: be more tolerant of setuptools >= 60

- #20986: BUG: Fix misplaced return.

- #20992: MAINT: Further small return value validation fixes