ons. The list will be searched in order.
        </li>
    </ul>
    
    <h3>Derived quantities</h3>
    
    <p>Some calculations that were done in drivers or in hardware are now
        done consistently by the new StdWXCalculate service. Drivers should no
        longer calculate derived quantities such as windchill, heatindex,
        dewpoint, or rain rate.</p>
    
    <h3>Driver APIs</h3>
    
    <p>The base class for drivers has been renamed, and new, optional,
        methods have been defined to