# SciPy 0.17.1 Release Notes

SciPy 0.17.1 is a bug-fix release with no new features compared to 0.17.0.

## Issues closed for 0.17.1

- #5817: BUG: skew, kurtosis return np.nan instead of “propagate”

- #5850: Test failed with sgelsy

- #5898: interpolate.interp1d crashes using float128

- #5953: Massive performance regression in cKDTree.query with L_inf distance…

- #6062: mannwhitneyu breaks backward compatibility in 0.17.0

- #6134: T test does not handle nans

## Pull requests for 0.17.1

- #5902: BUG: interpolate: make interp1d handle np.float128 again

- #5957: BUG: slow down with p=np.inf in 0.17 cKDTree.query

- #5970: Actually propagate nans through stats functions with nan_policy=”propagate”

- #5971: BUG: linalg: fix lwork check in `*gelsy`

- #6074: BUG: special: fixed violation of strict aliasing rules.

- #6083: BUG: Fix dtype for sum of linear operators

- #6100: BUG: Fix mannwhitneyu to be backward compatible

- #6135: Don’t pass null pointers to LAPACK, even during workspace queries.

- #6148: stats: fix handling of nan values in T tests and kendalltau