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TYPO3 14 LTS – Migration, Update, and Upgrade

TYPO3 14 LTS is the current long-term support (LTS) version, with bug fixes through December 31, 2027, and security updates through June 30, 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 Outdated TYPO3 installations often run on PHP versions that no longer receive security patches—a significant security risk.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:

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

Upgrade to TYPO3 14 LTS now!

Request a Migration

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

TYPO3 14 LTS is the current long-term support release and our recommended target for new projects. Updated: November 13, 2026. Free community support and paid Extended Long-Term Support (ELTS) are separate phases:

  • TYPO3 14 LTS: Bug fixes through December 31, 2027, and security updates through June 30, 2029. Depending on the contract, ELTS can extend through June 30, 2032.
  • TYPO3 13 LTS: Free security updates through December 31, 2027. Still supported for existing projects; ELTS can extend through December 31, 2030.
  • TYPO3 12 LTS: Free community support ended on April 30, 2026. Paid ELTS can extend through April 30, 2030.
  • TYPO3 11 LTS: Free community support has ended. Paid ELTS can extend through October 31, 2028.
  • TYPO3 10 LTS: Free community support has ended. Paid ELTS can extend through April 30, 2027.
  • TYPO3 9 and older: No regular community support or regular ELTS remains. An upgrade should be planned urgently.

ELTS requires a suitable paid contract. Availability and duration depend on the version and offering; a fourth ELTS year is reserved for TYPO3 partners. Refer to the official TYPO3 support overview for current terms.

Which version are you using? We will assess your current installation and provide a no-obligation estimate of the migration effort.

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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 receives free security updates through December 31, 2027, and TYPO3 14 LTS through June 30, 2029. Once community support ends, TYPO3 11 and 12 require a suitable paid ELTS contract. Depending on the contract, TYPO3 10 may still have ELTS available through April 30, 2027. Availability and duration depend on the offering; current dates are listed in the official TYPO3 support overview. Plan upgrades early to avoid time pressure and unnecessary risks.