---
title: "Breaking: #83081 - Removed configuration option BE/fileExtensions/webspace"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-83081"
source: "Changelog/9.0/Breaking-83081-RemovedConfigurationOptionBeFileExtensionsWebspace.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Breaking: #83081 - Removed configuration option BE/fileExtensions/webspace

See [forge#83081](https://forge.typo3.org/issues/83081)

## Description

The file extensions which are allowed to be uploaded, which were previously available under
`$TYPO3_CONF_VARS[BE][fileExtensions][webspace]` called `allow` and `deny` have been removed.

## Impact

-   Using the old configuration option names will result in a PHP notice.
-   In Import/Export when uploading files `fileDenyPattern` is used instead of `allow` and `deny`
-   When using `BasicFileUtility` directly, only `fileDenyPattern` is used

## Affected Installations

TYPO3 installations which have set this option in `LocalConfiguration.php` previously, or extensions which
still use the old configuration option names.

## Migration

Use `fileDenyPattern` which is used consistently throughout the core to deny specific file extensions.