---
title: "Deprecation: #85878 - EidUtility and various TSFE methods"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-85878"
source: "Changelog/9.4/Deprecation-85878-EidUtilityAndVariousTSFEMethods.rst"
modified: "2026-09-14T09:47:36+00:00"
---

# Deprecation: #85878 - EidUtility and various TSFE methods

See [forge#85878](https://forge.typo3.org/issues/85878)

## Description

The Utility class `\TYPO3\CMS\Frontend\Utility\EidUtility` has been marked as deprecated.

The following methods have been marked as deprecated:

-   `TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController->initFEuser()`
-   `TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController->storeSessionData()`
-   `TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController->previewInfo()`
-   `TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController->hook_eofe()`
-   `TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController->addTempContentHttpHeaders()`
-   `TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController->sendCacheHeaders()`

The following hook has been marked as deprecated:

-   `$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_fe.php']['hook_previewInfo']`

## Impact

Calling any of the methods or registering a hook listener will trigger a PHP `E_USER_DEPRECATED` error.

## Affected Installations

Any TYPO3 installation with custom functionality in the frontend using any of the methods, or the hook.

## Migration

As all functionality has been set up via PSR-15 middlewares, use a PSR-15 middleware instead.

The method `storeSessionData()` should be replaced with `TSFE->fe_user->storeSessionData()`.

The methods `addTempContentHttpHeaders()` and `sendCacheHeaders()` are now incorporated
within `TSFE->processOutput()`. This function should be used, or rather add custom headers
to a PSR-15 Response object if available.

On top, the hook is superseded by the Frontend Hook `hook_eofe` which is executed in the Frontend rendering
flow directly afterwards.