Breaking: #69568 - FormEngine related classes
See forge#69568
Description
The following classes have been removed:
TYPO3CMSBackendForm Data Preprocessor TYPO3CMSBackendForm Form Engine TYPO3CMSBackendForm Flex Forms Helper
The following hook has been removed:
$GLOBALS['TYPO3_ CONF_ VARS'] ['SC_ OPTIONS'] ['t3lib/ class. t3lib_ tceforms. php'] ['get Main Fields Class']
Impact
Code trying to instantiate these classes will fatal.
Affected Installations
A rather low number of extensions should be affected by this change. Searching for the above class names should reveal them.
Migration
The methods and classes have been moved to different classes and solutions. Extensions needs adaption.
The hook get has been substituted with a much more fine grained and flexible API.
Use Form to change data given to the render engine of FormEngine from now on.