Breaking: #102931 - Removed hook in GifBuilder 

See forge#102931

Description 

The hook $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_gifbuilder.php']['gifbuilder-ConfPreProcess'] has been removed.

This hook was solely introduced in TYPO3 v3.8.0 for a specific use case which isn't needed anymore, and thus removed.

At the same time the whole GifBuilder class is now strictly typed.

Impact 

PHP code utilizing this hook will not be executed anymore.

Affected installations 

TYPO3 installations with extensions utilizing this hook, which is highly unlikely.

Any usages can be found with the Extension Scanner in the Install Tool.

Migration 

It is recommended to hand in custom configuration already into GifBuilder directly, and remove any usages to the hook in custom extension code.