---
title: TYPO3 v10 to v12 Migration for Crime + Investigation
url: "https://nitsantech.de/en/typo3-projects/crime-and-investigation"
description: TYPO3 migration for Crime + Investigation with PHP 8.2, better search, faster performance, and modern CI/CD workflow.
date: 2026-03-31
modified: 2026-04-10
lastUpdated: 2026-04-10
categories:
- Upgrade
---
# TYPO3 v10 to v12 Migration for Crime + Investigation
TYPO3 Upgrade Case Study for Leading True-Crime Media Brand, Crime + Investigation
===================================================================================
**Industry**
Media / Pay-TV Brand (DACH)
**TYPO3 Project Type**
TYPO3 Upgrade & Modernization
**TYPO3 Extensions**
23
**Visit Website**
[ https://www.crimeandinvestigation.de/ ](https://www.crimeandinvestigation.de/)
CrimeandInvestigation.de: A True-Crime Platform Built for Fast Content Discovery
--------------------------------------------------------------------------------
Crime + Investigation is a true-crime focused TV brand in Germany, Austria, and Switzerland. The website supports users who want quick access to shows, schedules, and editorial content across devices.
For this kind of content platform, speed, clarity, and stable publishing workflows are critical. The website needs to stay fast and reliable while content is updated on a regular basis.
Partnership: NITSAN × Mokom01 TYPO3 Agency
------------------------------------------
This TYPO3 upgrade was delivered in partnership with **mokom01 TYPO3 agency**.
mokom01 supported delivery coordination and alignment with stakeholders. **NITSAN handled the TYPO3 and PHP upgrade, extension modernization, CI/CD setup, testing, and go-live stability.**
The Task & Challenges
-------------------------
The goal was to modernize the platform without disrupting daily publishing and content updates. The website needed a clean and future-ready TYPO3 base, better search, modern layouts, and improved performance.
**Key challenges and goals:**
- Upgrade TYPO3 from v10 to v12 and PHP from 7.4 to 8.2
- Run compatibility analysis and prepare upgrade reports
- Improve search to support fast content discovery
- Migrate from legacy layout tools to modern TYPO3 standards
- Set up GitLab CI/CD and a safe go-live process
- Test across devices and backend workflows
- Improve performance, SEO, and accessibility
Solutions We Delivered
----------------------
We delivered a structured TYPO3 upgrade focused on stability, performance, and long-term maintainability. The work covered core upgrades, search and layout migration, extension updates, testing, and safe deployment.
### **TYPO3 & PHP Upgrade Foundation**
We prepared technical and compatibility reports and upgraded the core platform with a controlled process.
**Key work delivered:**
- TYPO3 v10 → v12
- PHP v7.4 → v8.2
- Technical and compatibility analysis reports
- Modern TYPO3 site configuration, templates, and redirect setup
### **Search Migration for Better Findability**
To improve content discovery, we replaced the legacy search setup with a modern TYPO3 search solution.
**Key work delivered:**
- Migration from EXT:indexed\_search to EXT:ke\_search
### **Layout Migration to Modern TYPO3 Standards**
We modernized the layout system to reduce future upgrade risks and improve editor workflows.
**Key work delivered:**
- Migration from EXT:gridelements to EXT:container
### **Extension Additions**
We added required business features while keeping the TYPO3 setup clean and maintainable.
**Key work delivered:**
- Added EXT:ci\_shop
- Added EXT:newsletter
- Setup of EXT:typo3\_console
### **QA, CI/CD & Go-Live Stability**
We focused on testing, automation, and safe deployment to avoid surprises at launch.
**Key work delivered:**
- New GitLab CI/CD pipeline
- Cross-platform, UX/UI, functional, and backend usability testing
- Improved coding standards (extension scan, TCA fixes, error resolution, log review)
- Safe go-live and re-upgrade strategy to avoid data loss
**Results at a Glance**
-----------------------
- Modern TYPO3 v12 and PHP 8.2 base for long-term support
- Better search for fast content discovery
- Cleaner layouts for editors and future upgrades
- Stronger release process with CI/CD
- Performance and SEO targets aligned with 90+ PageSpeed goals
#### **Newsletter & Retention Support**
With EXT:newsletter, the platform can support audience engagement and campaign-driven communication while staying easy to manage inside TYPO3. This helps the brand build ongoing relationships with its audience.
#### **SEO & Core Web Vitals Readiness**
After the upgrade, the platform is set up to reach strong PageSpeed and SEO scores by using modern TYPO3 setup, cleaner templates, and a disciplined deployment process.
#### **Accessibility Improvements**
Accessibility improvements were part of the upgrade scope to move closer to WCAG and BITV expectations. This supports a more inclusive user experience across devices.
Other references
----------------
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