---
title: "Deprecation: #85125 - Deprecate usages of CharsetConverter in core"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-85125"
source: "Changelog/9.3/Deprecation-85125-UsagesOfCharsetConverterInCore.rst"
typo3-version: "9.3"
typo3-major: 9
type: "deprecation"
issue: 85125
forge: "https://forge.typo3.org/issues/85125"
tags: ["PHP-API", "FullyScanned"]
rendered: "2026-09-20T05:05:02+00:00"
---

# Deprecation: #85125 - Deprecate usages of CharsetConverter in core {#deprecation-85125}

See [forge#85125](https://forge.typo3.org/issues/85125)

## Description {#description}

The following method has been marked as deprecated:

-   `TYPO3\CMS\Core\Resource\Driver\AbstractHierarchicalFilesystemDriver->getCharsetConversion()`

The following public properties have been deprecated:

-   `TYPO3\CMS\IndexedSearch\Lexer->csObj`
-   `TYPO3\CMS\IndexedSearch\Indexer->csObj`

## Impact {#impact}

Calling the method or accessing any of the properties will trigger a PHP `E_USER_DEPRECATED` error.

## Affected Installations {#affected-installations}

TYPO3 Installations with custom FAL drivers or special handling for indexed search extending the
Lexer functionality.

## Migration {#migration}

Check the extension scanner if the site is affected and instantiate CharsetConverter directly in the
callers' code.