diff --git a/README.rst b/README.rst
index f500e782..0f023afd 100644
--- a/README.rst
+++ b/README.rst
@@ -25,9 +25,8 @@ We aim at the de facto OSS NOS implementation and NOS API.
 
 Currently, Ryu is shipped with one control application for `OpenStack
 <http://openstack.org/.>`_ network management L2 segregation of
-tenants without using VLAN. The application includes changes to
-OpenStack (nova, quantum ovs plugin, etc). We aim to merge Ryu into
-OpenStack mainline.
+tenants without using VLAN. The application is included in OpenStack
+mainline as of Essex release.
 
 The project goal is to develop an OSS Network Operating System that
 has high quality enough for use in large production environment in