Important: #78650 - TypoScriptService class moved from Extbase to Core¶
See Issue #78650
The PHP class
TypoScriptService has been moved to the core extension, as it has no direct link
to Extbase, and a lot of other system extensions are using the class.
The old class name
TYPO3\CMS\Extbase\Service\TypoScriptService is registered as a class alias
for the new class name
TYPO3\CMS\Core\TypoScript\TypoScriptService, so extensions can call the
class via the Extbase PHP namespace in TYPO3 v8 without any downsides.