Breaking change to register extending

Description

Since version 7.0.0 all usage of EXTCONF is replaced with EXTENSIONS.

Impact

All class extending still using EXTCONF to not work anymore. So the code still fills the array but this array is not used anymore.

Affected Installations

All extensions that use EXTCONF in registration of class extending like.

$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['store_finder']['extender'][
        \Evoweb\StoreFinder\Domain\Model\Location::class
]['sitepackage'] = 'EXT:sitepackage/Classes/Domain/Model/Location.php';

Migration

Replace the usage of EXTCONF with EXTENSIONS to have the class extended again.