Zabbix 4.0 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Zabbix 4.0 reached end of life on 31 Oct 2023. It no longer receives security fixes.
Support timeline
Official dates from the Zabbix release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 1 Oct 2018 | — |
| End of life | 31 Oct 2023 | 2.8 years ago |
| Active support ended | 31 Oct 2021 | security fixes only after this |
| Latest release | 4.0.50 · 30 Oct 2023 | final |
Where to go from 4.0
Recommended target: Zabbix 7.4 (supported until 30 Sept 2026).
The newest actively supported branch is Zabbix 7.4 (latest release 7.4.13).
Frequently asked questions
Is Zabbix 4.0 still safe to use?
Zabbix 4.0 reached end of life on 31 Oct 2023, 1,013 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Zabbix 4.0?
Yes — the final release (4.0.50) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Zabbix 4.0 to?
Upgrade to Zabbix 7.4, the newest actively supported branch (supported until 30 Sept 2026).