Upgrading TYPO3

Minor upgrades

Minor updates (for example 10.4.20 to 10.4.21) contain bugfixes and/or security updates. This chapter details how updates are installed and highlights what tasks need to be carried out before and after the core is updated.

Major upgrades

Major updates (for example 10.4 to 11.5) can contain new features and breaking changes as well as bugfixes. This chapter details how updates are installed and highlights what tasks need to be carried out before and after the core is updated.

Upgrading extensions

Just like TYPO3’s core, extensions also need to be regularly updated. This chapter details how to upgrade extensions using Composer.

Legacy upgrade guide

Using TYPO3 without Composer? This chapter details how to upgrade TYPO3 manually.

Migrate a TYPO3 installation to Composer

Information on how to migrate a legacy installation of TYPO3 to a Composer based installation.

Migrate content

This chapter details how pages and content can be exported and then imported into another installation of TYPO3.