Attention

TYPO3 v8 has reached its end-of-life March 31st, 2020 and is not maintained by the community anymore. Looking for a stable version? Use the version switch on the top left.

There is no further ELTS support. It is recommended that you upgrade your project and use a supported version of TYPO3.

Check the ChangeLog

Look through the ChangeLog online. The ChangeLog is divided into four sections "Breaking Changes", "Features", "Deprecation" and "Important". Before upgrading you should at least take a look at the sections "Breaking Changes" and "Important" - changes described in those areas might affect your website.

The detailed information contains a section called "Affected Installations" which contains hints whether or not your website is affected by the change.

You can also find the ChangeLog in the Install Tool at "Upgrade Analysis". Here you can mark files as read after checking them, so you get a ToDo list for the upgrade.

Uprade Analysis

The "Uprade Analysis" in the Install Tool