---
title: "Deprecation: #82903 - Deprecate ClientUtility"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-82903"
source: "Changelog/9.0/Deprecation-82903-DeprecateClientUtility.rst"
typo3-version: "9.0"
typo3-major: 9
type: "deprecation"
issue: 82903
forge: "https://forge.typo3.org/issues/82903"
tags: ["PHP-API", "FullyScanned"]
rendered: "2026-09-20T18:31:11+00:00"
---

# Deprecation: #82903 - Deprecate ClientUtility {#deprecation-82903}

See [forge#82903](https://forge.typo3.org/issues/82903)

## Description {#description}

Class `\TYPO3\CMS\Core\Utility\ClientUtility` has been marked as deprecated and should not be
used any longer.

## Impact {#impact}

Using this class will throw a deprecation warning.

## Affected Installations {#affected-installations}

Instances with extensions using the methods of the class:

-   `getBrowserInfo`
-   `getVersion`

## Migration {#migration}

Use a 3rd party API like [https://github.com/piwik/device-detector](https://github.com/piwik/device-detector)