Contao 3.5 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Contao 3.5 reached end of life on 31 May 2019. It no longer receives security fixes.
Support timeline
Official dates from the Contao release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 5 Jun 2015 | — |
| End of life | 31 May 2019 | 7.2 years ago |
| Active support ended | 30 Jun 2018 | security fixes only after this |
| Latest release | 3.5.40 · 11 Apr 2019 | final |
Where to go from 3.5
Recommended target: Contao 5.7 (supported until 14 Feb 2030).
The newest actively supported branch is Contao 5.7 (latest release 5.7.11).
Frequently asked questions
Is Contao 3.5 still safe to use?
Contao 3.5 reached end of life on 31 May 2019, 2,627 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Contao 3.5?
Yes — the final release (3.5.40) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Contao 3.5 to?
Upgrade to Contao 5.7, the newest actively supported branch (supported until 14 Feb 2030).