1.4.0
FIX improve error message in `check_array` when getting a `Series` and expecting a 2D container (#28090)
MNT add isort to ruff's rules (#26649)
MAINT Follow cython performance hints (#27521)
DOC Add examples to docstring to functions from the preprocessing package (#28019)
MAINT: Remove `np.int_` and `np.uint` (#27523)
ENH improve the efficiency of Encoders in checking nan (#27760)
FIX ensure consistency or column and feature names in FunctionTransformer (#27801)
MAINT: Remove np.in1d and np.trapz usages (#27140)
DOC linked SplineTransformer to time-related feature engineering example (#26971)
DOC fix referencing in TargetEncoder docstring (#27697)
MAINT Cython linting (#25861)