---
title: "Breaking: #79259 - EXT:t3skin removed"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-79259"
source: "Changelog/8.6/Breaking-79259-RemoveExtt3skin.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Breaking: #79259 - EXT:t3skin removed

See [forge#79259](https://forge.typo3.org/issues/79259)

## Description

The system extension `t3skin` has been removed, as all functionality has been migrated into
other system extensions.

All ExtJS-related images and css files have been moved to EXT:core.

All other images have been unused for a while now, and have been deleted from the TYPO3 core.

## Impact

Any direct references to EXT:t3skin now lead to missing styling or image(s).

## Affected Installations

All installations that use CSS files or images from EXT:t3skin.

## Migration

Do not use ExtJS styling or images anymore, as ExtJS will be removed from the core.

Other direct references to image(s) in EXT:t3skin should be migrated to have the image(s) in
custom extension.