Breaking: #68150 - $GLOBALS['CLIENT'] 

See forge#68150

Description 

The initialization of the $GLOBALS['CLIENT'] variable has been dropped.

Impact 

Extensions that use $GLOBALS['CLIENT'] will cause a PHP notice or may not function properly any more.

Affected Installations 

Installations with extensions that use $GLOBALS['CLIENT'] are affected.

Migration 

Extensions can still use GeneralUtility::clientInfo() API to retrieve the same information.