update release notes
diff --git a/web/ons-demo/RELEASE_NOTES.txt b/web/ons-demo/RELEASE_NOTES.txt
index 369e9c4..3616d22 100644
--- a/web/ons-demo/RELEASE_NOTES.txt
+++ b/web/ons-demo/RELEASE_NOTES.txt
@@ -1,3 +1,8 @@
+** April 11, 2013 **
+- Use timestamps for iperf display
+This elimates spurious gaps when server responds slowly. However, gaps still appear if the server drops buffers entirely
+- Add "K" action for killing a controller
+
 ** April 9, 2013 **
 - display number of flows for each core<->core link
 - graphics tweaks