Deprecation: #73514 - IncludeLibrary Methods 

See forge#73514

Description 

The PHP methods \TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController->includeLibraries() and \TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer->includeLibs() to include PHP libraries during frontend output have been marked as deprecated.

Impact 

Calling any of the methods above will trigger a deprecation log entry.

Affected Installations 

Any installation using custom Frontend output modified via PHP and TypoScript through e.g. a custom CType provided by a special extension.

Migration 

Use proper object orientation and class loading methods to load code in the Frontend when necessary.