---
title: "Breaking: #101398 - Remove leftover $fetchAllFields in RelationHandler"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-101398-1689861816"
source: "Changelog/13.0/Breaking-101398-FetchAllFieldsRelationHandler.rst"
typo3-version: "13.0"
typo3-major: 13
type: "breaking"
issue: 101398
forge: "https://forge.typo3.org/issues/101398"
tags: ["PHP-API", "FullyScanned", "ext:core"]
rendered: "2026-09-20T18:31:11+00:00"
---

# Breaking: #101398 - Remove leftover $fetchAllFields in RelationHandler {#breaking-101398-1689861816}

See [forge#101398](https://forge.typo3.org/issues/101398)

## Description {#description}

The `\TYPO3\CMS\Core\Database\RelationHandler` had an unused property
`$fetchAllFields` since TYPO3 v11.5.0. The related method
`setFetchAllFields()` has been removed with it.

## Impact {#impact}

Custom extensions calling `\TYPO3\CMS\Core\Database\RelationHandler->setFetchAllFields()`
will result in a PHP Fatal error.

## Affected installations {#affected-installations}

All installations with custom extensions calling
`\TYPO3\CMS\Core\Database\RelationHandler->setFetchAllFields()`.

## Migration {#migration}

Remove the affected line of code. This method has had no effect since
TYPO3 v11.5.0.