Attention

TYPO3 v9 has reached its end-of-life September 30th, 2021 and is not maintained by the community anymore. Looking for a stable version? Use the version switch on the top left.

You can order Extended Long Term Support (ELTS) here: TYPO3 ELTS.

Upgrade

When a new version of TYPO3 is released, you should follow the guideline in this chapter in order to do an upgrade. Also follow any additional upgrade information carefully. You might e.g. want to skim the Release Notes on get.typo3.org to see if any features affect the way your site works.

Note

Version specific upgrade notes

While the upgrade instructions remain basically the same for each upgrade, additional information is available for each major version: Upgrade to v9.5.

Note

Think of active users

Think of users who might want to do any changes during your upgrading and/or fallback. Inform them before you start!

Basically these are the steps to be done to update your TYPO3 site:

• Preparation
• Backup
• Reference Index
• Install the New Source
• Convert Global Extensions
• Use the Upgrade Wizard
• Run the Database Analyzer
• Clear User Settings
• Clear Caches
• Check the ChangeLog
• Update Extensions (non-Composer Installations)
• Update Translations
• Upgrade to v9.5