Breaking: #73719 - Unused JavaScript configuration options for the Backend removed

See Issue #73719

Description

The following JavaScript options from TYPO3.configuration and the global JavaScript property TS have been removed:

TYPO3.configuration.PATH_typo3
TYPO3.configuration.PATH_typo3_enc
TYPO3.configuration.userUid
TYPO3.configuration.securityLevel
TYPO3.configuration.TYPO3_mainDir
TYPO3.configuration.veriCode
TYPO3.configuration.denyFileTypes
TS.PATH_typo3
TS.PATH_typo3_enc
TS.securityLevel
TS.veriCode
TS.denyFileTypes
TS.decimalSign

Impact

Calling any of the JavaScript options above from within JavaScript will result in a undefined JavaScript error.

Affected Installations

Any TYPO3 installation using a legacy TYPO3 extension that uses these options within JavaScript.

Migration

Remove the values from the JavaScript code or provide a PHP alternative to make the options available again for JavaScript, if needed.