---
title: "Breaking: #82572 - RDCT functionality removed"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-82572"
source: "Changelog/9.0/Breaking-82572-RDCTFunctionalityRemoved.rst"
typo3-version: "9.0"
typo3-major: 9
type: "breaking"
issue: 82572
forge: "https://forge.typo3.org/issues/82572"
tags: ["Frontend", "PHP-API", "PartiallyScanned"]
rendered: "2026-09-24T21:45:06+00:00"
---

# Breaking: #82572 - RDCT functionality removed {#breaking-82572}

See [forge#82572](https://forge.typo3.org/issues/82572)

## Description {#description}

The short-link / redirect functionality based on the GET parameter `RDCT` of TYPO3 Frontend requests
has been removed from TYPO3.

Along, all functionality related to evaluating `RDCT` is not evaluated anymore.

The following PHP methods have been removed:

-   TypoScriptFrontendController->sendRedirect()
-   TypoScriptFrontendController->updateMD5paramsRecord()
-   GeneralUtility::makeRedirectUrl()

The eighth property of the constructor of TypoScriptFrontendController is not evaluated anymore,
also the public property `TSFE->RDCT` is removed as it is not set anymore.

The corresponding database table `cache_md5params` has been dropped.

Substitution logic can be found in the TER extension `rdct`.

## Impact {#impact}

When calling TYPO3 Frontend via `index.php&RDCT=myhash` the RDCT GET parameter is not evaluated
anymore.

Calling `$TSFE->sendRedirect()`, `$TSFE->updateMD5paramsRecord()` and
`GeneralUtility::makeRedirectUrl()` will result in a fatal PHP error.

Accessing the now non-existent property `$TSFE->RDCT` will trigger a PHP notice, as well
as setting up a new instance of `TypoScriptFrontendController` with an eighth parameter.

Accessing the database table `cache_md5params` will also lead to unexpected results as this table
does not exist in new installations anymore.

## Affected Installations {#affected-installations}

Any TYPO3 instance handling data via the `cache_md5params` database table or creating short links
via `&RDCT` hashes.

## Migration {#migration}

The TER extension `rdct` contains all previous functionality handled via a simple hook. An upgrade
wizard within the Install Tool will check if the database table is filled and downloads the extension
from TER.

It is recommended to use a third-party short-url or redirect extension which provides a richer feature
set.