1.6.0
Imp splitting of test_preprocessing.py
TST Extend tests for `scipy.sparse.*array` in `sklearn/preprocessing/tests/test_common.py` (#27164)
Fixed array api support for MinMaxScaler with clip=True (#29751)
API Standardize `X` as `inverse_transform` input parameter (#28756)
ENH Add 'warn' option to 'handle_unknown' parameter in OneHotEncoder (#28637)
FIX Do not warn when using polars DataFrames in DecisionBoundaryDisplay.from_estimator (#28718)
MAINT Clean-up some old warning filters (#29460)
FIX test_csr_polynomial_expansion_index_overflow on [scipy-dev] (#30393)
MAINT Clean up deprecations for 1.5: in KBinsDiscretizer (#28817)