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# NumPy 1.23.1 Release Notes

NumPy 1.23.1 is a maintenance release that fixes bugs discovered after the 1.23.0 release. Notable fixes are:

- Fix searchsorted for float16 NaNs

- Fix compilation on Apple M1

- Fix KeyError in crackfortran operator support (Slycot)

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

## Contributors

A total of 7 people contributed to this release. People with a “+” by their names contributed a patch for the first time.

- Charles Harris

- Matthias Koeppe +

- Pranab Das +

- Rohit Goswami

- Sebastian Berg

- Serge Guelton

- Srimukh Sripada +

## Pull requests merged

A total of 8 pull requests were merged for this release.

- #21866: BUG: Fix discovered MachAr (still used within valgrind)

- #21867: BUG: Handle NaNs correctly for float16 during sorting

- #21868: BUG: Use `keepdims` during normalization in `np.average` and…

- #21869: DOC: mention changes to `max_rows` behaviour in `np.loadtxt`

- #21870: BUG: Reject non integer array-likes with size 1 in delete

- #21949: BLD: Make can_link_svml return False for 32bit builds on x86_64

- #21951: BUG: Reorder extern “C” to only apply to function declarations…

- #21952: BUG: Fix KeyError in crackfortran operator support