diff --git a/HISTORY.rst b/HISTORY.rst
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@@ -4,7 +4,8 @@ History
 
 ##### (##########)
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+* Refactor MapieRegressor and ConformityScore to add the possibility to use X in ConformityScore.
+* Separate the handling of the estimator from MapieRegressor into a new class called EnsembleEstimator.
 * Add grouped conditional coverage metrics named SSC for regression and classification
 * Add HSIC metric for regression
 * Migrate conformity scores classes into conformity_scores module