---
title: "Important: #89001 - TSFE->createHashBase"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:important-89001"
source: "Changelog/10.1/Important-89001-TSFE-createHashBase.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Important: #89001 - TSFE->createHashBase

See [forge#89001](https://forge.typo3.org/issues/89001)

## Description

The method `\TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController->createHashBase()`
calculates all components that are relevant for a specific cached version of a page.

With TYPO3 v10.1, the keys in `$hashParameters` used for calculating the hash have been modified:

-   `gr_list` has been replaced by `groupIds` but contains the same values
-   `cHash` has been replaced by `dynamicArguments` but contains the same values
-   `domainStartPage` has been replaced by `site` (identifier of the site)