diff --git a/nova/scheduler/rpcapi.py b/nova/scheduler/rpcapi.py
index f368e95a..4bc6e0e4 100644
--- a/nova/scheduler/rpcapi.py
+++ b/nova/scheduler/rpcapi.py
@@ -47,6 +47,8 @@ class SchedulerAPI(nova.openstack.common.rpc.proxy.RpcProxy):
         2.1 - Add image_id to create_volume()
         2.2 - Remove reservations argument to create_volume()
         2.3 - Remove create_volume()
+        2.4 - Change update_service_capabilities()
+                - accepts a list of capabilities
     '''
 
     #
@@ -102,4 +104,5 @@ class SchedulerAPI(nova.openstack.common.rpc.proxy.RpcProxy):
             capabilities):
         self.fanout_cast(ctxt, self.make_msg('update_service_capabilities',
                 service_name=service_name, host=host,
-                capabilities=capabilities))
+                capabilities=capabilities),
+                version='2.4')
diff --git a/nova/tests/scheduler/test_rpcapi.py b/nova/tests/scheduler/test_rpcapi.py
index 112a4110..b1174559 100644
--- a/nova/tests/scheduler/test_rpcapi.py
+++ b/nova/tests/scheduler/test_rpcapi.py
@@ -82,4 +82,5 @@ class SchedulerRpcAPITestCase(test.TestCase):
     def test_update_service_capabilities(self):
         self._test_scheduler_api('update_service_capabilities',
                 rpc_method='fanout_cast', service_name='fake_name',
-                host='fake_host', capabilities='fake_capabilities')
+                host='fake_host', capabilities='fake_capabilities',
+                version='2.4')