Deploying of the new version of SharePoint Workflow

        private static void enlistInstancesInState(WorkflowInstanceStatus status)
        {

                enlistAllScopes(null, (client) =>
                {
                    var cnt = client.Instances.GetCount();
                    if (cnt > 0)
                    {
                        foreach (var wfInst in client.Instances.Get(0, cnt))
                        {

                            if (WorkflowInstanceStatus.NotSpecified != status && wfInst.WorkflowStatus == status)
                                traceOutWorkflow(wfInst);

                            else if (WorkflowInstanceStatus.NotSpecified == status)
                                traceOutWorkflow(wfInst);
                        }
                    }
                });
        }

      


        /// <summary>
        /// Enlists all scopes starting at root.
        /// </summary>
        /// <param name="scopeRoot">Scope to be enlisted.</param>
        private static void enlistAllScopes(WorkflowManagementClient client, Action<WorkflowManagementClient> action)
        {

            if(client == null)
                client = getWfMgmClient(null);

            if (action != null)
                action(client);

            var scopes = client.CurrentScope.GetChildScopes();

            foreach (var childScope in scopes)
            {
                enlistAllScopes(getWfMgmClient(Path.Combine(m_Root.TrimEnd('/') + childScope.Path)), action);
            }
        }

        /// <summary>
        /// Creates the instance of the WF-client.
        /// </summary>
        private static WorkflowManagementClient getWfMgmClient(string scope)
        {

            WorkflowManagementClient client;

            if (scope == null)
                client = new WorkflowManagementClient(m_Root);
            else
                client = new WorkflowManagementClient(scope);

            return client;
        }