.. include:: /Includes.rst.txt .. _flash-messages-renderer: ======================= Flash messages renderer ======================= The implementation of rendering FlashMessages in the Core has been optimized. A new class called :php:`TYPO3\CMS\Core\Messaging\FlashMessageRendererResolver` has been introduced. This class detects the context and renders the given FlashMessages in the correct output format. It can handle any kind of output format. The Core ships with the following FlashMessageRenderer classes: * :php:`TYPO3\CMS\Core\Messaging\Renderer\BootstrapRenderer` This renderer is used by default in the TYPO3 backend. The output is based on Bootstrap markup. * :php:`TYPO3\CMS\Core\Messaging\Renderer\ListRenderer` This renderer is used by default in the TYPO3 frontend. The output is a simple :html:`