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.
Keep Security in Mind¶
Security is taken very seriously by the developers of TYPO3 CMS. The TYPO3 Security Team manages possible security incidents. They review them and consider their impact. Security advisories are regularly published.
More information about security can be found in the Security Guidelines.