Fluent Bit · Lifecycle Status

Fluent Bit End of Life (EOL) Dates & Support Timeline

Q: What is the end-of-life date for Fluent Bit?

The next Fluent Bit version reaching EOL is 4.2 on June 30, 2026. See the full table above for all version EOL dates.

Q: When is the Fluent Bit support end date?

The next Fluent Bit support end date is June 30, 2026, when version 4.2 reaches end of support. Each version has its own support end date — see the table above for every version's date.

Q: What is the latest supported version of Fluent Bit?

The latest active version of Fluent Bit is 5.0.7. Always verify against the table above as support windows can change.

Complete end-of-life dates, support windows, and security status for all Fluent Bit versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.

📅 Get reminded before Fluent Bit 4.2 reaches EOL on June 30, 2026 — alerts 90, 30 & 7 days out.

Google →

Latest Active

5.0.7

5.0 series

Next EOL

4.2

Jun 30, 2026

Active Versions

of 25 total

EOL Versions

no longer patched

Medium Risk

EOL Risk Score™ How is this calculated? →

EOL Recency

30/40

Attack Surface

10/30 Medium tier

CISA KEV Exposure

0/20 Not in KEV

Extended Support

0/10 Available

EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build. Methodology →

Release Cycle Timeline

■ EOL ■ Warning ■ Active ┊ Today

All Versions

Version	Latest Release	Release Date	EOL Date	Days	Status
0.10	0.10.1	Dec 30, 2016	No EOL date	Supported	Active
0.11	0.11.17	Mar 30, 2017	No EOL date	Supported	Active
0.12	0.12.19	Aug 17, 2017	No EOL date	Supported	Active
0.13	0.13.8	Aug 18, 2018	No EOL date	Supported	Active
0.14	0.14.9	Aug 29, 2018	No EOL date	Supported	Active
1.0	1.0.6	Dec 13, 2018	No EOL date	Supported	Active
1.1	1.1.3	May 8, 2019	No EOL date	Supported	Active
1.2	1.2.2	Jun 26, 2019	No EOL date	Supported	Active
1.3	1.3.11	Sep 30, 2019	No EOL date	Supported	Active
1.4	1.4.6	Mar 25, 2020	No EOL date	Supported	Active
1.5	1.5.7	Jul 13, 2020	No EOL date	Supported	Active
1.6	1.6.10	Oct 8, 2020	No EOL date	Supported	Active
1.7	1.7.9	Feb 14, 2021	No EOL date	Supported	Active
1.8	1.8.15	Jul 7, 2021	Dec 5, 2022	1296 days past EOL	EOL
1.9	1.9.10	Mar 11, 2022	Dec 5, 2022	1296 days past EOL	EOL
2.0	2.0.14	Oct 25, 2022	Jul 19, 2023	1070 days past EOL	EOL
2.1	2.1.10	Apr 18, 2023	Feb 6, 2024	868 days past EOL	EOL
2.2	2.2.3	Nov 6, 2023	Jun 21, 2024	732 days past EOL	EOL
3.0	3.0.7	Mar 21, 2024	Oct 8, 2024	623 days past EOL	EOL
3.1	3.1.10	Jul 8, 2024	Feb 12, 2025	496 days past EOL	EOL
3.2	3.2.10	Nov 12, 2024	Jun 29, 2025	359 days past EOL	EOL
4.0	4.0.14	Mar 29, 2025	Dec 24, 2025	181 days past EOL	EOL
4.1	4.1.2	Sep 24, 2025	Feb 11, 2026	132 days past EOL	EOL
4.2	4.2.5	Nov 11, 2025	Jun 30, 2026	7 days remaining	Warning
5.0	5.0.7	Mar 31, 2026	TBD	Supported	Active

What does Fluent Bit end of life mean for your organization?

When a version of Fluent Bit reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.

The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the accumulation of unpatched vulnerabilities in EOL software. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no patch will ever exist. This is the most dangerous gap in enterprise security posture.

Organizations running EOL Fluent Bit should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.

Extended Support Options

If you cannot migrate immediately, extended support vendors provide continued security patches for EOL Fluent Bit versions. This is a bridge, not a permanent solution — plan your migration in parallel.

endoflife.ai

Need Extended Support?

We work with vetted extended support vendors. Tell us what you need and we'll connect you with the right provider.

Frequently Asked Questions

What is the end-of-life date for Fluent Bit?

The next Fluent Bit version reaching EOL is 4.2 on June 30, 2026. See the full table above for all version EOL dates.

When is the Fluent Bit support end date?

The next Fluent Bit support end date is June 30, 2026, when version 4.2 reaches end of support. Each version has its own support end date — see the table above for every version's date.

What is the latest supported version of Fluent Bit?

The latest active version of Fluent Bit is 5.0.7. Always verify against the table above as support windows can change.

What happens when Fluent Bit reaches end of life?

When Fluent Bit reaches end of life, the vendor stops issuing security patches. Any CVEs disclosed after the EOL date accumulate indefinitely with no patch path — creating an ever-growing attack surface that most vulnerability scanners do not flag.

How do I check if I'm running an EOL version of Fluent Bit?

Check your current version against the table above. If your version's EOL date has passed, you are running unsupported software. You can also use the endoflife.ai Stack Scanner to check your entire dependency file at once.

Is there extended support available for EOL Fluent Bit versions?

Some vendors offer extended support for EOL software. Contact the original vendor or check with enterprise support providers for options.

Related Products

Data from endoflife.date API · endoflife.date · Generated at build time · How we source data →