+
−change_attribute_type('CWCache', 'timestamp', 'TZDatetime')
+
−change_attribute_type('CWUser', 'last_login_time', 'TZDatetime')
+
−change_attribute_type('CWSource', 'latest_retrieval', 'TZDatetime')
+
−drop_attribute('CWSource', 'synchronizing')
+
−add_attribute('CWSource', 'in_synchronization')