Best way to find deprecated stuff is to do a git grep "0\.18" and see where it says "will be removed in 0.18" or "will no longer be supported from 0.18" or something similar to that and explore the file where that line is found.

Once you have removed the deprecated stuff please commit your work and send a PR similar to #5437 with the issue description that it "Partly fixes #5434".

(The [MRG] at the start of the PR indicates that the PR is ready for review. Or if you are not done working with it fully, you could use [WIP])

@zermelozf - #5451 -

• threshold_ attribute in the OutlierDetectionMixin at file covariance/outlier_detection.py
• support for class_weight="auto" in utils/class_weight.py
• * pooling_func in transform of AgglomerationTransform in file cluster/_feature_agglomeration.py
• * random_state parameter in cluster/dbscan_.py
• * n_components in cluster/hierarchical.py
• max_iterations in cluster/mean_shift_.py
• The allow_lists, allow_nd and dtype options in train_test_split of cross_validation.py
• Remove support for class_weight="subsample" in ensemble/forest.py
• estimator_params in sklearn/feature_selection/rfe.py
• precompute in sklearn/linear_models/coordinate_descent.py
• fixed_vocabulary property in feature_extraction/text.py
• A lot more

  ---

@aabadie - #5456

• deprecated code in metrics

@raghavrv - #5437 - #5469 - #5528

• * helper functions in multiclass.py
• Remove support for uppercase values for loss in sv* (test in file svm/tests/test_svm.py, uppercase support in _fit_liblinear function in svm/base.py, Refer [MRG+1] Fix broken L1 deprecations and svm scale C example. #4261 and Broken plot_svm_scale_c.py example #4260 also svm/classes.py L192)
• Remove support for gamma==0.0 (svm/base.py)
• Change the default value of decision_function_shape to 'ovr' (svm/base.py)
• fixed_vocabulary_
• Removing deprecations fully from metrics
• Left over stuff