Breaking: #82430 - Replaced GeneralUtility::sysLog with Logging API

See forge#82430


The original sysLog() logging API has been superseded by the Logging API.

Therefore, GeneralUtility::sysLog and GeneralUtility::initSysLog have been deprecated.

The configuration $GLOBALS['TYPO3_CONF_VARS']['SYS']['systemLog'] has been changed to a boolean value. The option $GLOBALS['TYPO3_CONF_VARS']['SYS']['syslogErrorReporting'] has been removed.


The Logging API needs custom writer configuration to send the log entries of your choice to the PHP error log, the syslog facility or a file.

Affected Installations

Any instance having a configuration set for $GLOBALS['TYPO3_CONF_VARS']['SYS']['systemLog'].


Add a custom log writer configuration to send log entries to the destination of your choice.

The Logging API provides these writers as replacements for the original configuration options:

  • \TYPO3\CMS\Core\Log\Writer\SyslogWriter
  • \TYPO3\CMS\Core\Log\Writer\PhpErrorLogWriter
  • \TYPO3\CMS\Core\Log\Writer\FileWriter

More details on the configuration of log writers can be found in the Core API Reference at