1.2.2
Imp splitting of test_preprocessing.py
DOC Switch to gender neutral terms for sister function (#23003)
DOC Fix some typos (#24300)
API Rename OneHotEncoder option sparse to sparse_output (#24412)
FIX Fixes bug OneHotEncoder's drop_idx_ when there are infrequent categories (#25589)
FIX Handles all numerical DataFrames with check_inverse=True in FunctionTransformer (#25274)
ENH Allows target to be pandas nullable dtypes (#25638)
FIX SplineTransformer.get_feature_names_out returns correct names for extrapolations=periodic (#25296)