1.4.1
FIX HistgradientBoosting with pandas extension dtypes (#28385)
MNT Checking function `_estimator_has` also raises `AttributeError` (#28167)
MNT add isort to ruff's rules (#26649)
MAINT remove deprecated base_estimator and base_estimator_ (#27826)
MAINT use Voting and Stacking support missing values (#27710)
MAINT: Adjust the codebase to the new `np.array`'s `copy` keyword meaning (#28323)
FIX divide by zero in line search of GradientBoostingClassifier (#28095)
MAINT Fix ctypedef types in tree submodule (#27352)
FIX IsolationForest accepts sparse matrix with float value contamination (#27645)
FIX raise proper error for not supporting multilabel in VotingClassifier (#27702)
BLD Add Meson support (#28040)