…changed vs 4.0.0a0 Removed from core dependencies lightgbm , cloudpickle , psutil , xxhash , matplotlib , kaleido , nbformat , ipywidgets — all lazy-imported with gracefu

…rained exclusively on real data. 2. Added TabPrep-LightGBM, a LightGBM model with custom preprocessing logic including target mean encoding and feature crossing. 3. Added

…</code - <b <a href="https://github.com/microsoft/LightGBM" LightGBM</a </b (🥈42 · ⭐ 18K · 📈) - A fast, distributed, high performance gradient boosting (GBT, GBDT,.. <c

Add tweedie objective to LightGBM options [ 722](https://github.com/onnx/onnxmltools/pull/722) Support for "huber" objective in the LGBM Booster [ 705](https://github.com

…enders/pull/1608 Remove early stopping round from LightGBM example notebook in https://github.com/microsoft/recommenders/pull/1620 Other features Enable Python 3.8 and 3.

…hms or improvements Improve algos visibility 1542 LightGBM test improvement 1531 Fix Surprise and Python 3.7 1540 TF-IDF runtime enhancement changes 1571 Add Spark 3.x su