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* Compatible with newer version of scikit-learn (GH-313)
* Retrain classification and sentiment models with latest version of scikit-learn (GH-381)
* Add ClassifierTrainer (from languageflow) (GH-381)
* Add 3 new datasets (GH-351)
* [Funny Update] Change underthesea's avatar (GH-371)
* [CI] Add Stale App: Automatically close stale Issues and Pull Requests that tend to accumulate during a project (GH-351)