diff --git a/wp-includes/js/mce-view.js b/wp-includes/js/mce-view.js
index 7af5873f4a..2cfb1a9c67 100644
--- a/wp-includes/js/mce-view.js
+++ b/wp-includes/js/mce-view.js
@@ -1,4 +1,9 @@
 /* global tinymce, MediaElementPlayer, WPPlaylistView */
+/**
+ * Note: this API is "experimental" meaning that it will probably change
+ * in the next few releases based on feedback from 3.9.0.
+ * If you decide to use it, please follow the development closely.
+ */      
 
 // Ensure the global `wp` object exists.
 window.wp = window.wp || {};