diff --git a/doc/whats_new/v1.0.rst b/doc/whats_new/v1.0.rst
index d57fd55425237..e15c8ec5ff832 100644
--- a/doc/whats_new/v1.0.rst
+++ b/doc/whats_new/v1.0.rst
@@ -713,6 +713,9 @@ Changelog
 - |Enhancement| warn only once in the main process for per-split fit failures
   in cross-validation. :pr:`20619` by :user:`Loïc Estève <lesteve>`
 
+- |Enhancement| The :class:`model_selection.BaseShuffleSplit` base class is
+  now public. :pr:`20056` by :user:`pabloduque0`.
+
 - |Fix| Avoid premature overflow in :func:`model_selection.train_test_split`.
   :pr:`20904` by :user:`Tomasz Jakubek <t-jakubek>`.