--- title: "Deprecation: #94227 - f:base ViewHelper" manual: "TYPO3 Core Changelog" version: "main" permalink: "https://docs.typo3.org/permalink/changelog:deprecation-94227" source: "Changelog/11.3/Deprecation-94227-FbaseViewHelper.rst" typo3-version: "11.3" typo3-major: 11 type: "deprecation" issue: 94227 forge: "https://forge.typo3.org/issues/94227" tags: ["Fluid", "NotScanned", "ext:fluid"] rendered: "2026-09-20T05:05:02+00:00" --- # Deprecation: #94227 - f:base ViewHelper {#deprecation-94227} See [forge#94227](https://forge.typo3.org/issues/94227) ## Description {#description} The `` ViewHelper isn't suitable in almost all use cases and has been deprecated: In most cases the `PageRenderer` takes care of the main `` markup, directly, or indirectly via TypoScript `config.baseURL`. ## Impact {#impact} Using the ViewHelper in Fluid templates will log a deprecation warning and the ViewHelper will be dropped with v12. ## Affected Installations {#affected-installations} The limited use of the ViewHelper likely leads to little usage numbers. Searching extensions for the string html:`` should reveal any usages. ## Migration {#migration} The easiest solution is to simply copy PHP class `\TYPO3\CMS\Fluid\ViewHelpers\BaseViewHelper` to the consuming extension, giving the ViewHelper a happy life in an extension specific namespace.