---
title: "Breaking: #77762 - Extensions dbal and adodb moved to TER"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-77762"
source: "Changelog/8.4/Breaking-77762-ExtensionsDbalAndAdodbMovedToTER.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Breaking: #77762 - Extensions dbal and adodb moved to TER

See [forge#77762](https://forge.typo3.org/issues/77762)

## Description

The legacy extensions `dbal` and `adodb` have been removed from the TYPO3 CMS core and are only available as TER extensions.

## Impact

Tables located on non-MySQL databases stop working until `EXT:adodb` and `EXT:dbal` have been installed from TER if a third party extensions uses the old `TYPO3_DB` API to query those tables.

## Affected Installations

Most installations are not affected. Instances are only affected if a loaded extension
uses the old `TYPO3_DB` database API, `dbal` and `adodb` have been loaded and if an
active table mapping to non-MySQL databases is configured.

## Migration

Use the upgrade wizard provided by the install tool to fetch and load the extensions from TER.