CakePHP 5.1 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
CakePHP 5.1 reached end of life on 19 Jul 2026. It no longer receives security fixes.
21 days without security patches
Recommended action: upgrade to CakePHP 5.4. Check your versionphp bin/cake.php version
Support timeline
Official dates from the CakePHP release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 13 Sept 2024 | — |
| End of life | 19 Jul 2026 | 0.1 years ago |
| Active support ended | 30 Mar 2025 | security fixes only after this |
| Latest release | 5.1.10 · 16 Jul 2026 | final |
Where to go from 5.1
Recommended target: CakePHP 5.4.
The newest actively supported branch is CakePHP 5.4 (latest release 5.4.1).
Frequently asked questions
Is CakePHP 5.1 still safe to use?
CakePHP 5.1 reached end of life on 19 Jul 2026, 21 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download CakePHP 5.1?
Yes — the final release (5.1.10) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade CakePHP 5.1 to?
Upgrade to CakePHP 5.4, the newest actively supported branch.
All CakePHP versions
5.4 supported 5.3 supported 5.2 supported 4.6 supported 5.1 EOL 2026 4.5 supported 5.0 EOL 2026 4.4 supported 4.3 supported 3.10 EOL 2022 4.2 EOL 2023 4.1 EOL 3.9 EOL 4.0 EOL 3.8 EOL 3.7 EOL 3.6 EOL 3.5 EOL 2.10 EOL 2021 3.4 EOL 2.9 EOL 3.3 EOL 2.8 EOL 3.2 EOL 3.1 EOL 2017 2.7 EOL 3.0 EOL 2.6 EOL 2.5 EOL 2.4 EOL 2.3 EOL 2.2 EOL 2.1 EOL 2.0 EOL 1.3 EOL 2015