title: TYPO3-Upgrade 4.5 to 6.2: namespaces
body: <p>I'm updating an old TYPO3 to latest verison 6.2.12. As I do so I replace deprecated classes with the proper namespaces. E.g. <code>t3lib_div</code> to <code>\TYPO3\CMS\Core\Utility\GeneralUtility</code> or <code>t3lib_extmgm</code> to <code>\TYPO3\CMS\Core\Utility\ExtensionManagementUtility</code>.</p>
  
  <p>But I cant find the proper namespaced class for <code>t3lib_svbase</code>. Any suggestions?</p>
  
  <p>.</p>
  
  <p>And I absolutely have no clue what I need to do with the new xclassed include.</p>
  
  <pre><code>//old XCLASS
  if (defined('TYPO3_MODE') &amp;&amp; $TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['ext/foo_myfancyextension/sv1/class.tx_foomyfancyextension_sv1.php'])   {
      include_once($TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['ext/foo_myfancyextension/sv1/class.tx_foomyfancyextension_sv1.php']);
  }
  </code></pre>
  
  <p>It should look something like this:</p>
  
  <pre><code>//new XCLASS
  $GLOBALS['TYPO3_CONF_VARS']['SYS']['Objects']['TYPO3\\CMS\\Frontend\\ContentObject\\FluidTemplateContentObject'] = array(
      'className' =&gt; 'Enet\\FxLibrary\\Xclass\\FluidTemplateContentObject',
  );
  </code></pre>
  
  <p>But where is the path to my extension and the class itself?</p>