TYPO3 Core

define('TYPO3_URL_MAILINGLISTS', 'http://lists.typo3.org/cgi-bin/mailman/listinfo');
define('TYPO3_URL_DOCUMENTATION', 'https://typo3.org/documentation/');
define('TYPO3_URL_DOCUMENTATION_TSREF', 'https://docs.typo3.org/typo3cms/TyposcriptReference/');
define('TYPO3_URL_DOCUMENTATION_TSCONFIG', 'https://docs.typo3.org/typo3cms/TSconfigReference/');
define('TYPO3_URL_CONSULTANCY', 'https://typo3.org/support/professional-services/');
define('TYPO3_URL_CONTRIBUTE', 'https://typo3.org/contribute/');
define('TYPO3_URL_SECURITY', 'https://typo3.org/teams/security/');
define('TYPO3_URL_DOWNLOAD', 'https://typo3.org/download/');
define('TYPO3_URL_SYSTEMREQUIREMENTS', 'https://typo3.org/typo3-cms/overview/requirements/');

defined('NUL') ?: define('NUL', chr(0));
defined('TAB') ?: define('TAB', chr(9));
defined('SUB') ?: define('SUB', chr(26));