news extension

ext_autoload in ext:news requires Classes/Cache/ClassCacheBuilder.php that in turn manually requires PATH_t3lib . 'utility/class.t3lib_utility_versionnumber.php' in its init() method. This file will not exist anymore in 6.2, and the autoloader is not yet initialized in ext_autoload (for obvious reasons) at this point. Thus, the code then fails with

PHP Fatal error:  Class 'TYPO3\CMS\Core\Utility\VersionNumberUtility' not found in /var/www/domains/schwarzbu.ch/vhosts/foo/htdocs/typo3conf/ext/news/Classes/Utility/Compatibility.php on line 45

A quick hack to solve this is

»···protected function init() {
»···»···$t3libUtilityVersionNumber = PATH_t3lib . 'utility/class.t3lib_utility_versionnumber.php';
»···»···if (@is_file($t3libUtilityVersionNumber)) {
»···»···»···require_once($t3libUtilityVersionNumber);
»···»···} else {
»···»···»···require_once \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::extPath('core') . 'Classes/Utility/VersionNumberUtility.php';
»···»···}
»···»···require_once(t3lib_extMgm::extPath('news', 'Classes/Utility/Compatibility.php'));
»···}

This in only a hack, own code in ext_autoload except returning some static array is highly discouraged and can fail at any point.