diff --git a/notes/2.13.md b/notes/2.13.md
index 6005858d75..92405fe683 100644
--- a/notes/2.13.md
+++ b/notes/2.13.md
@@ -26,6 +26,14 @@ Corresponding issues/pull requests:
 
 * https://github.com/openlayers/openlayers/pull/484
 
+## Bing Layer
+
+All requests to the Bing Maps service are not sent using the same protocol as the OpenLayers application using the Bing layer. A new config option `protocol` has been introduced to set the protocol to use for requests to the Bing Maps service. For applications hosted on a `file:` url or if in doubt, set `protocol` to 'http:'.
+
+Corresponding issues/pull requests:
+
+* http://github.com/openlayers/openlayers/pull/700
+
 # Behavior Changes from Past Releases
 
 ## window.$ is no longer an alias for OpenLayers.Util.getElement
@@ -58,4 +66,4 @@ Corresponding issue/pull requests:
 
 # Different return type for OpenLayers.Format.WMSDescribeLayer
 
-The return type of WMSDescribeLayer format's `read` method was different from the one of the VersionedOGC format superclass. So it was changed from an array to an object with a layerDescriptions property that holds the array. For backwards compatibility, the object still has a length property and 0, ..., n properties with the previous array values.
\ No newline at end of file
+The return type of WMSDescribeLayer format's `read` method was different from the one of the VersionedOGC format superclass. So it was changed from an array to an object with a layerDescriptions property that holds the array. For backwards compatibility, the object still has a length property and 0, ..., n properties with the previous array values.