diff --git a/docs/html/reference/com/google/android/gms/cast/package-summary.html b/docs/html/reference/com/google/android/gms/cast/package-summary.html
index eb39561ffa263..bc41b5d3f8ef5 100644
--- a/docs/html/reference/com/google/android/gms/cast/package-summary.html
+++ b/docs/html/reference/com/google/android/gms/cast/package-summary.html
@@ -677,7 +677,7 @@ onkeyup="return search_changed(event, false, '/')" />
 <div id="jd-content" class="api apilevel-">
 
 
-  <div class="jd-descr">
+  <div class="jd-descr"><div class="caution"><p><strong>Notice</strong></p><p>This API requires Google Play services 4.2, which began rolling out to devices worldwide on January 29th. Once the update to devices is complete, the corresponding Google Play services library (revision 15) will be available for you to begin using these APIs.</p></div>
     Contains classes for interacting with Cast devices.
 
   </div>