---
title: "Deprecation: #86441 - Various methods and properties inside BackendUserAuthentication"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-86441"
source: "Changelog/9.5/Deprecation-86441-VariousMethodsAndPropertiesInsideBackendUserAuthentication.rst"
typo3-version: "9.5"
typo3-major: 9
type: "deprecation"
issue: 86441
forge: "https://forge.typo3.org/issues/86441"
tags: ["Frontend", "FullyScanned", "PHP-API"]
rendered: "2026-09-18T17:00:34+00:00"
---

# Deprecation: #86441 - Various methods and properties inside BackendUserAuthentication {#deprecation-86441}

See [forge#86441](https://forge.typo3.org/issues/86441)

## Description {#description}

Some minor changes have been made with `\TYPO3\CMS\Core\Authentication\BackendUserAuthentication` in order
to continue cleaning up the code.

The property `checkWorkspaceCurrent_cache` has been marked as protected, as it is an internal cache.

The second argument of method `modAccess()` has been marked as deprecated, as the method should not trigger runtime exceptions anymore.

The method `isPSet()` has been marked as deprecated.

The following - mostly workspaces-related - methods have been marked as "internal":

-   `workspaceCannotEditOfflineVersion()`
-   `workspacePublishAccess()`
-   `workspaceSwapAccess()`
-   `workspaceCannotEditOfflineVersion()`

## Impact {#impact}

Calling the deprecated method or the protected property will trigger a PHP `E_USER_DEPRECATED` error.

## Affected Installations {#affected-installations}

TYPO3 installations with enhanced workspace or permission functionality.

## Migration {#migration}

Avoid using the methods, and re-implement the functionality on your own, if necessary.