Fluent Bit 2.1 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
Fluent Bit 2.1 reached end of life on 6 Feb 2024. It no longer receives security fixes.
915 days without security patches
Recommended action: upgrade to Fluent Bit 5.0. Check your versionfluent-bit -v
Support timeline
Official dates from the Fluent Bit release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 18 Apr 2023 | — |
| End of life | 6 Feb 2024 | 2.5 years ago |
| Latest release | 2.1.10 · 28 Sept 2023 | final |
Where to go from 2.1
Recommended target: Fluent Bit 5.0.
The newest actively supported branch is Fluent Bit 5.0 (latest release 5.0.9).
Frequently asked questions
Is Fluent Bit 2.1 still safe to use?
Fluent Bit 2.1 reached end of life on 6 Feb 2024, 915 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Fluent Bit 2.1?
Yes — the final release (2.1.10) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Fluent Bit 2.1 to?
Upgrade to Fluent Bit 5.0, the newest actively supported branch.