-class AddGroupClassToGroups < ActiveRecord::Migration
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
+class AddGroupClassToGroups < ActiveRecord::Migration[4.2]
def change
add_column :groups, :group_class, :string
add_index :groups, :group_class