• Complete refactor of TreeExplainer to support deeper C++ integration
• The ability to explain transformed outputs of tree models in TreeExplainer, including the loss. In collaboration with @HughChen
• Allow for a dynamic reference value in DeepExplainer courtesy of @AvantiShri
• Add x_jitter option for categorical dependence plots courtesy of @ihopethiswillfi
• Added support for GradientBoostingRegressor with quantile loss courtesy of @dmilad
• Better plotting support for NaN values
• Fixes several bugs.