DOC Add what's new for binary only estimator checks
@@ -113,3 +113,7 @@ These changes mostly affect library developers.
``transform`` is called before ``fit``; previously an ``AttributeError`` or
``ValueError`` was acceptable.
:pr:`13013` by by :user:`Agamemnon Krasoulis <agamemnonc>`.
+
+- |Enhancement| Binary only classifiers are now supported in estimator checks.
+ Such classifiers need to have the `binary_only=True` estimator tag.
+ :pr:`13875` by `Trevor Stephens`_.
