---
title: "Breaking: #82398 - Remove special constant \"TSConstantEditor\""
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-82398"
source: "Changelog/9.0/Breaking-82398-RemoveSpecialConstantTSConstantEditor.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Breaking: #82398 - Remove special constant "TSConstantEditor"

See [forge#82398](https://forge.typo3.org/issues/82398)

## Description

The special functionality on the top level constant name `TSConstantEditor`
has been dropped. This rarely used feature makes this constant name a casual
constant without further added features.

A series of PHP class methods and properties has been dropped together with that removal:

-   Method `TYPO3\CMS\Core\TypoScript\ConfigurationForm->ext_makeHelpInformationForCategory()`
-   Method `TYPO3\CMS\Core\TypoScript\ConfigurationForm->ext_displayExample()`
-   Method `TYPO3\CMS\Core\TypoScript\ExtendedTemplateService->ext_getTSCE_config()`
-   Property `TYPO3\CMS\Core\TypoScript\ExtendedTemplateService->helpConfig`
-   Method `TYPO3\CMS\Extensionmanager\Domain\Model\ConfigurationCategory->setHighlightText()`
-   Method `TYPO3\CMS\Extensionmanager\Domain\Model\ConfigurationCategory->getHighlightText()`
-   Method `TYPO3\CMS\Extensionmanager\Domain\Model\ConfigurationItem->setHighlight()`
-   Method `TYPO3\CMS\Extensionmanager\Domain\Model\ConfigurationItem->getHighlight()`

## Impact

The constants editor does not show any extending information (like bulletpoints) for a constant
anymore configured via the `TSConstantEditor` object.

## Affected Installations

All installations which have configured the special constant `TSConstantEditor`. Since this has
been a widely unknown feature, most instances should not be affected. On PHP side, the extension
scanner will find consuming extensions of the dropped API, but that is highly unlikely, too.