Prometheus 3.5 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Prometheus 3.5 reached end of life on 31 Jul 2026. It no longer receives security fixes.
Support timeline
Official dates from the Prometheus release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 14 Jul 2025 | — |
| End of life | 31 Jul 2026 | 0.0 years ago |
| Latest release | 3.5.5 · 9 Jul 2026 | final |
Where to go from 3.5
Recommended target: Prometheus 3.13 (supported until 31 Jul 2027).
The newest actively supported branch is Prometheus 3.13 (latest release 3.13.2).
Frequently asked questions
Is Prometheus 3.5 still safe to use?
Prometheus 3.5 reached end of life on 31 Jul 2026, 9 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Prometheus 3.5?
Yes — the final release (3.5.5) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Prometheus 3.5 to?
Upgrade to Prometheus 3.13, the newest actively supported branch (supported until 31 Jul 2027).