---
title: "Feature: #95364 - Event to modify frontend user groups without authentication"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:feature-95364"
source: "Changelog/11.5/Feature-95364-EventToModifyFrontendUserGroupsWithoutAuthentication.rst"
modified: "2026-09-14T09:47:36+00:00"
---

# Feature: #95364 - Event to modify frontend user groups without authentication

See [forge#95364](https://forge.typo3.org/issues/95364)

## Description

Prior to TYPO3 v11, the "getGroupsFE" authentication service
allowed to add and manipulate frontend user groups to be attached
to a FrontendUserAuthentication request during runtime.

Extensions use this approach to attach certain properties for
customization (for example country or region of a website user)
dynamically for a specific request.

This functionality was removed during the refactoring of the
authentication services (see [forge#93108](https://forge.typo3.org/issues/93108)).

A new Event `ModifyResolvedFrontendGroupsEvent` has now been
introduced to modify user groups, even if there is no
authenticated user in place.

## Impact

Use the new PSR-14 event to attach frontend user groups dynamically
during a frontend request.