---
title: "13.4.x Changes"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:changelog-13-4-x"
source: "Changelog/13.4.x/Index.rst"
typo3-version: "13.4.x"
typo3-major: 13
rendered: "2026-10-01T08:40:31+00:00"
noindex: true
---

# 13.4.x Changes {#changelog-13-4-x}

**Table of contents**

-   [Breaking Changes](https://docs.typo3.org/permalink/changelog:breaking-changes)
-   [Features](https://docs.typo3.org/permalink/changelog:features)
-   [Deprecation](https://docs.typo3.org/permalink/changelog:deprecation)
-   [Important](https://docs.typo3.org/permalink/changelog:important)

## Breaking Changes {#breaking-changes}

None since TYPO3 v13.4.0 LTS release.

> [!WARNING]
> **Attention**
>
> Breaking changes are not planned after the TYPO3 v13.4.0 LTS release.

## Features {#features}

-   [Feature: #105638 - Modify fetched page content](https://docs.typo3.org/permalink/changelog:feature-105638-modify-fetched-page-content)

## Deprecation {#deprecation}

## Important {#important}

-   [Important: #92187 - Evaluation of incoming HTTP Header X-Forwarded-Proto](https://docs.typo3.org/permalink/changelog:important-92187-evaluation-of-incoming-http-header-x-forwarded-proto)
-   [Important: #103140 - Allow to configure rate limiters in Message consumer (Symfony Messenger)](https://docs.typo3.org/permalink/changelog:important-103140-allow-to-configure-rate-limiters-in-message-consumer-symfony-messenger)
-   [Important: #104477 - Remove hyphen prefix from sys_log's data field entry](https://docs.typo3.org/permalink/changelog:important-104477-remove-hyphen-prefix-from-sys-log-s-data-field-entry)
-   [Important: #105007 - Manipulation of final search query in EXT:indexed_search](https://docs.typo3.org/permalink/changelog:important-105007-manipulation-of-final-search-query-in-ext-indexed-search)
-   [Important: #105310 - Create CHAR and BINARY as fixed-length columns](https://docs.typo3.org/permalink/changelog:important-105310-create-char-and-binary-as-fixed-length-columns)
-   [Important: #105653 - Require a template filename in extbase module template rendering](https://docs.typo3.org/permalink/changelog:important-105653-require-a-template-filename-in-extbase-module-template-rendering)
-   [Important: #105703 - Premature end of script headers due to X-TYPO3-Cache-Tags](https://docs.typo3.org/permalink/changelog:important-105703-premature-end-of-script-headers-due-to-x-typo3-cache-tags)
-   [Important: #106401 - Treat 0 as a defined value for nullable datetime fields](https://docs.typo3.org/permalink/changelog:important-106401-treat-0-as-a-defined-value-for-nullable-datetime-fields)
-   [Important: #106467 - Align Extbase DateTime handling to FormEngine and DataHandler](https://docs.typo3.org/permalink/changelog:important-106467-align-extbase-datetime-handling-to-formengine-and-datahandler)
-   [Important: #106494 - Adapt custom instances of AbstractFormFieldViewHelper to deal with persistenceManager->getIdentifierByObject() methods](https://docs.typo3.org/permalink/changelog:important-106494-adapt-custom-instances-of-abstractformfieldviewhelper-to-deal-with-persistencemanager-getidentifierbyobject-methods)
-   [Important: #106508 - Respect column CHARACTER SET and COLLATE in ext_tables.sql](https://docs.typo3.org/permalink/changelog:important-106508-respect-column-character-set-and-collate-in-ext-tables-sql)
-   [Important: #106546 - Tables that exist as views are ignored](https://docs.typo3.org/permalink/changelog:important-106546-tables-that-exist-as-views-are-ignored)
-   [Important: #106894 - Site settings.yaml is now stored as a map](https://docs.typo3.org/permalink/changelog:important-106894-site-settings-yaml-is-now-stored-as-a-map)
-   [Important: #107062 - Avoid applying Content-Security-Policy nonce sources when not required](https://docs.typo3.org/permalink/changelog:important-107062-avoid-applying-content-security-policy-nonce-sources-when-not-required)
-   [Important: #107063 - CKEditor 5 v46.1.0: TypeScript imports and CSS changes](https://docs.typo3.org/permalink/changelog:important-107063-ckeditor-5-v46-1-0-typescript-imports-and-css-changes)
-   [Important: #107342 - Extend listForms method in FormPersistenceManagerInterface](https://docs.typo3.org/permalink/changelog:important-107342-extend-listforms-method-in-formpersistencemanagerinterface)
-   [Important: #107594 - Icon overlay for TCA select items](https://docs.typo3.org/permalink/changelog:important-107594-icon-overlay-for-tca-select-items)
-   [Important: #107649 - Dependency Injection cache is now PHP version dependant](https://docs.typo3.org/permalink/changelog:important-107649-dependency-injection-cache-is-now-php-version-dependant)
-   [Important: #107681 - Disabled state for ShortcutButton and DropDownButton](https://docs.typo3.org/permalink/changelog:important-107681-disabled-state-for-shortcutbutton-and-dropdownbutton)
-   [Important: #108604 - Mitigate deserialization flaws](https://docs.typo3.org/permalink/changelog:important-108604-mitigate-deserialization-flaws)
-   [Important: #110422 - Index definitions are checked against the table](https://docs.typo3.org/permalink/changelog:important-110422-index-definitions-are-checked-against-the-table)
-   [Important: #110454 - Translation source index covers the translation lookups](https://docs.typo3.org/permalink/changelog:important-110454-translation-source-index-covers-the-translation-lookups)