---
title: "Breaking: #101149 - Mark PageTsBackendLayoutDataProvider as final"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-pagetsbackendlayoutdataprovider-1687440947"
source: "Changelog/13.0/Breaking-101149-MarkPageTsBackendLayoutDataProviderAsFinal.rst"
typo3-version: "13.0"
typo3-major: 13
type: "breaking"
issue: 101149
forge: "https://forge.typo3.org/issues/101149"
tags: ["Backend", "NotScanned", "ext:backend"]
rendered: "2026-10-03T08:19:36+00:00"
---

# Breaking: #101149 - Mark PageTsBackendLayoutDataProvider as final {#breaking-pagetsbackendlayoutdataprovider-1687440947}

See [forge#101149](https://forge.typo3.org/issues/101149)

## Description {#description}

The class `\TYPO3\CMS\Backend\View\BackendLayout\PageTsBackendLayoutDataProvider`
is marked as final.

## Impact {#impact}

It is no longer possible to extend the class
`\TYPO3\CMS\Backend\View\BackendLayout\PageTsBackendLayoutDataProvider`.

## Affected installations {#affected-installations}

Classes extending `\TYPO3\CMS\Backend\View\BackendLayout\PageTsBackendLayoutDataProvider`.

## Migration {#migration}

Instead of extending the data provider, it is recommended to register a custom
DataProvider for backend layouts, which can already be used since TYPO3 v7.