Contao 5.5 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Contao 5.5 reached end of life on 14 Aug 2025. It no longer receives security fixes.
Support timeline
Official dates from the Contao release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 18 Feb 2025 | — |
| End of life | 14 Aug 2025 | 1.0 years ago |
| Latest release | 5.5.16 · 18 Aug 2025 | final |
Where to go from 5.5
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 5.5 still safe to use?
Contao 5.5 reached end of life on 14 Aug 2025, 360 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Contao 5.5?
Yes — the final release (5.5.16) 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 5.5 to?
Upgrade to Contao 5.7, the newest actively supported branch (supported until 14 Feb 2030).