What happens if my extensions aren't compatible with TYPO3 14 LTS?

This is the most common challenge in TYPO3 migrations. We review all extensions and research compatible alternatives. For specialized extensions that are no longer maintained, we develop our own replacement solutions or adapt the source code as needed. In every case, we provide you with transparent information about options and the work involved—before any costs are incurred.

Can content and data be lost during migration?

If done correctly, no. We create a complete backup of the database and the file system before every migration. The migration itself takes place in a staging environment—your live system will not be switched over until all tests have been passed. In addition, we perform a quality check after the live migration.

How much longer can I continue to run TYPO3 11, 12, or 13?

TYPO3 13 LTS will receive security patches through the end of 2027, after which regular support will end. TYPO3 11 and 12 LTS are already covered by the paid ELTS (Extended Long-Term Support). TYPO3 10 and earlier versions no longer receive official support. We recommend not waiting—the older the version, the more complex the migration and the greater the security risk.

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TYPO3 Migration & Update

Upgrade from older TYPO3 versions to TYPO3 13 LTS—securely, according to plan, and without data loss. We’ll guide you through the entire upgrade process, from analysis to go-live.

TYPO3 14 LTS – Migration, Update, and Upgrade

TYPO3 14 LTS is the current long-term support (LTS) version, with security support through October 2027 and community support through 2029. Whether you’re migrating from TYPO3 version 8, 10, or 11, performing aminor update within the same major version, or upgrading completely to TYPO3 14—NET.THINKS will guide you safely through the entire process.

The larger the version jump, the more complex the migration. Outdated TYPO3 installations often run on PHP versions that no longer receive security patches—a significant security risk. We check all extensions for compatibility, replace discontinued extensions with modern alternatives, and perform the migration in a secure test environment before making any changes to your live website.

Migration Process

Our Migration Process

Every TYPO3 migration begins with a thorough assessment. Here’s how our proven process works:

Analysis: Comprehensive review of the TYPO3 installation, PHP version, database structure, and extensions in use
Compatibility Check: All extensions are checked for compatibility with TYPO3 14 LTS—alternatives are researched if necessary
Test migration: We perform the complete migration on an identical staging environment
Quality assurance: Extensive testing of all functions, forms, plugins, and front-end displays
Bug Fixing: Resolution of all identified issues prior to go-live
Go-Live: Migration of the production environment—typically with a maintenance window of a few hours

A man wearing glasses is sitting at a desk, working on a laptop. In front of him is a monitor displaying a website that provides information about services. The room is modern and bright, with plants and minimalist furnishings. A cup and a smartphone are on the table.

Analysis & Assessment

A comprehensive assessment of your TYPO3 installation: The PHP version, database structure, and all extensions in use are systematically checked.

Compatibility Check

All extensions are checked for compatibility with the target version and, if necessary, replaced with alternatives or customized.

Data Migration

Content, media, and configurations will be transferred to the new TYPO3 version in their entirety and without any loss of data.

Safe Go-Live

After extensive testing in the staging environment, the migration will proceed smoothly and without any downtime for your visitors.

TYPO3 Versions at a Glance – Which One Are You Using?

The TYPO3 release cycle calls for a new major version every 18 months. LTS (Long-Term Support) versions receive security patches for at least three years, after which optional support is available via ELTS (Extended LTS) for an additional three years. Here is the current overview:

TYPO3 14 LTS (current): Security support through Oct. 2027, community support through 2029 – Recommended target version
TYPO3 13 LTS: Security support through April 2026, community support through 2027
TYPO3 12 LTS: Under ELTS (paid Extended Support) – Upgrade strongly recommended
TYPO3 11 LTS: Under ELTS (paid Extended Support) – Upgrade required
TYPO3 10 LTS & older: No longer officially supported – update immediately!

Which version are you running? We’ll assess your current status free of charge and provide a no-obligation estimate of the migration effort.

Frequently Asked Questions About TYPO3 Migration

What happens if my extensions aren't compatible with TYPO3 14 LTS?

This is the most common challenge in TYPO3 migrations. We review all extensions and research compatible alternatives. For specialized extensions that are no longer maintained, we develop our own replacement solutions or adapt the source code as needed. In every case, we provide you with transparent information about options and the work involved—before any costs are incurred.
Can content and data be lost during migration?

If done correctly, no. We create a complete backup of the database and the file system before every migration. The migration itself takes place in a staging environment—your live system will not be switched over until all tests have been passed. In addition, we perform a quality check after the live migration.
How much longer can I continue to run TYPO3 11, 12, or 13?

TYPO3 13 LTS will receive security patches through the end of 2027, after which regular support will end. TYPO3 11 and 12 LTS are already covered by the paid ELTS (Extended Long-Term Support). TYPO3 10 and earlier versions no longer receive official support. We recommend not waiting—the older the version, the more complex the migration and the greater the security risk.