CakePHP 4.3 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Supported
CakePHP 4.3 is actively supported. It reaches end of life on 9 Sept 2026.
31 days of security support left
4.3.11 latest release
98% of this branch's supported lifetime has elapsed — 23 Oct 2021 → 9 Sept 2026.
Check your versionphp bin/cake.php version
Support timeline
Official dates from the CakePHP release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 23 Oct 2021 | — |
| End of life (scheduled) | 9 Sept 2026 | in 31 days |
| Active support ended | 7 Jun 2022 | security fixes only after this |
| Latest release | 4.3.11 · 5 Jan 2023 | current |
How much runway a newer branch buys
CakePHP 4.3 is the newest branch — this is the longest runway currently available.
| Branch | End of life | Days left | vs 4.3 |
|---|---|---|---|
| CakePHP 4.6 | 9 Sept 2026 | 31 | 0 days |
| CakePHP 4.5 | 9 Sept 2026 | 31 | 0 days |
| CakePHP 4.4 | 9 Sept 2026 | 31 | 0 days |
| CakePHP 4.3 | 9 Sept 2026 | 31 | this branch |
Frequently asked questions
When does CakePHP 4.3 reach end of life?
CakePHP 4.3 reaches end of life on 9 Sept 2026 — 31 days from now. After that date it receives no security fixes.
Is CakePHP 4.3 still supported?
Yes. CakePHP 4.3 is currently maintained. Latest release: 4.3.11, published 5 Jan 2023.
What happens when CakePHP 4.3 reaches end of life?
Security fixes stop. After 9 Sept 2026 this branch receives no further updates under standard support.
How long do I have to upgrade from CakePHP 4.3?
31 days. This is already the newest branch, so this is the longest runway currently available.
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