The top 5 most clicked links from the TYPO3 Newsletter November 2025

Have the article read aloud.

12/15/2025 | General | Estimated reading time : min.

This article was automatically translated using DeepL. Therefore, inaccuracies may occur.

My last newsletter triggered some exciting reactions. Today I'm showing you the five links that were clicked on the most. These are the topics that you were particularly interested in.

1. seven editorial tips for AI-optimized TYPO3 websites

Do you want your TYPO3 content to be more visible in ChatGPT and other AI systems? The good news: you don't need a major rebuild. With seven editorial adjustments in the TYPO3 backend, you can make your website more AI-friendly. It's all about personal answers, easy-to-understand content, mini FAQs and visible author information. This way, you will be better understood by AI search systems and cited more often.

Read the article: Editorial measures for AI optimization in TYPO3

2. attention: symfony/dependency-injection 7.4 can break TYPO3 systems

Since 27.11.2025, version 7.4 of the symfony/dependency-injection package has been causing problems in TYPO3 installations. Extensions that were written to be compatible across versions are particularly affected. The new version forces Composer to load all PHP files. This can lead to errors. A temporary fix is to explicitly request version 7.3.x in composer.json.

To the article: symfony/dependency-injection 7.4 problems

3. composer 2.9 brings automatic security check for TYPO3

Composer 2.9 is here and brings three practical new features. The automatic blocking of insecure packages is particularly relevant. By default, Composer prevents updates to packages with known security vulnerabilities. This reduces the risk of rolling out vulnerable versions in production environments. There are also new CLI commands for repository management and automatic resolution of lockfile conflicts.

Read the article: Composer 2.9 with security check

4. TYPO3 v14: Asset handling gets leaner - what's changing

TYPO3 v14 tidies up asset handling. HTTP Response Compression and Asset Concatenation will be removed. Many instances are not affected by this. There are sensible alternatives for the others. Compression is handled more efficiently by modern web servers. And with HTTP/2, asset concentration is often no longer necessary. This article shows you how to check whether you are affected and which steps make sense.

To the article: TYPO3 v14 asset handling

5 TYPO3 v14: Three Fluid 5 breaking changes for integrators

Fluid 5 in TYPO3 v14 brings three important breaking changes. CDATA is no longer used for commenting out. Variable names with underscore prefix are prohibited. In addition, ViewHelpers become more type-safe. Good to know: TYPO3 13.4.21 already warns you in the deprecation log if your templates are affected. The article explains how you can adapt your templates.

To the article: Fluid 5 Breaking Changes

Back

Do you have a question or want to discuss the topic?

In the Community Hub for TYPO3 you can exchange ideas with other TYPO3 users. And if you don't want to miss any new articles: The TYPO3 Newsletter comes once a month, without spam.

[Translate to English:] Wolfgang Wagner, TYPO3 Experte und Trainer

Hi, I'm Wolfgang.

I have been working with TYPO3 since 2006. Not in theory, but in real projects with real deadlines. I've probably had the problems you're having three times already.

At some point, I started putting my knowledge into video courses. Not because I like being in front of the camera, but because I kept hearing the same questions over and over again. There are now hundreds of videos. Every single one was the result of a specific question from a specific project.

What makes me different from a YouTube tutorial: I not only know the solution, but also the context. Why something works. When it doesn't work. And which mistakes you can avoid because I've already made them.

My participants use me as a sparring partner. Not in the sense of "call me anytime", but like this: You come to the live session with a specific problem, post your question in the community or watch the appropriate video. And get an answer that works because it comes from practical experience.

As a member of the TYPO3 Education & Certification Committee, I make sure that the certification exams are kept up to date. What is tested there flows directly into my courses.