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 is still registered as a class alias, so extensions can call the class via the Extbase PHP namespace in TYPO3 v8 without any downsides.