sqlite
        SQLITE_ROOT = %(WEEWX_ROOT)s/archive
    [[MySQL]]
        driver = weedb.mysql
        host = localhost
        user = weewx
        password = weewx</span></pre>
            </td>
        </tr>
    </table>
    
    <h2>From V2.7 or earlier</h2>
    
    <h3>Overview</h3>
    
    <p>While a lot has changed with Version 3, the upgrade process should
        take care of most changes for most users. However, if you have
        installed an extension or, especially, if you have written a cus