<link http: wiki.typo3.org typo3_cms_6.2.10>wiki.typo3.org/TYPO3_CMS_6.2.10
Performance ImprovementsAdditionally, a new extraordinary change in regard of performance was included. The existing functionality for loading PHP classes was improved by also including the autoloader functionality from the <link https: getcomposer.org>Composer project. This is a backport from TYPO3 CMS 7.1 and will speed up requests for both frontend pages and the TYPO3 Backend up to 20%, especially on sites with non-cached frontend pages. The backport to TYPO3 6.2.10 loads all PHP classes from the required system extensions via a static class map based on the PSR-4 standard. All other PHP classes are still loaded via the existing TYPO3-internal class loader. For details about the integration and the functionality, see the corresponding wiki page on <link http: wiki.typo3.org composerclassloader>wiki.typo3.org/ComposerClassLoader.