diff --git a/tensorflow/python/training/saver.py b/tensorflow/python/training/saver.py
index 26eafaa06a8..eb0b9e1e5c8 100644
--- a/tensorflow/python/training/saver.py
+++ b/tensorflow/python/training/saver.py
@@ -721,6 +721,9 @@ class Saver(object):
     # as keys:
     saver = tf.compat.v1.train.Saver({v.op.name: v for v in [v1, v2]})
     ```
+    
+    Note: the newer `AutoTrackable` API is not supported by `Saver`. In this 
+    case, the `tf.train.Checkpoint` class should be used.
 
     The optional `reshape` argument, if `True`, allows restoring a variable from
     a save file where the variable had a different shape, but the same number