diff --git a/docs/releases/1.10.txt b/docs/releases/1.10.txt
index feff144a96..8d2cb4261d 100644
--- a/docs/releases/1.10.txt
+++ b/docs/releases/1.10.txt
@@ -878,6 +878,9 @@ Miscellaneous
   are removed. The new :class:`~django.db.models.functions.datetime.Trunc`
   expressions provide the same functionality.
 
+* The ``_base_manager`` and ``_default_manager`` attributes are removed from
+  model instances. They remain accessible on the model class.
+
 .. _deprecated-features-1.10:
 
 Features deprecated in 1.10