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Fluent Bit
Active
Tools & Monitoring Latest Version: 4.2.2 Latest Release: Dec 23, 2025
Fluent Bit is a lightweight log processor and forwarder for collecting and shipping telemetry data.
Versions
24
Latest Version
4.2.2
Active Support
1
EOL
23
Lifecycle Timeline
Today β
4.2
4.2
4.1
4.1
4.0
4.0
3.2
3.2
3.1
3.1
3.0
3.0
2.2
2.2
2.1
2.1
2.0
2.0
1.9
1.9
Active SupportSecurity SupportEOL
Versions
| Release | Release Date | Active Support | EOL | Latest Version | LTS | Status |
|---|---|---|---|---|---|---|
| 4.2 | Nov 11, 2025 | - | No | 4.2.2 | No | Active |
| 4.1 | Sep 24, 2025 | - | Feb 11, 2026 | 4.1.2 | No | EOL |
| 4.0 | Mar 29, 2025 | - | Dec 24, 2025 | 4.0.14 | No | EOL |
| 3.2 | Nov 12, 2024 | - | Jun 29, 2025 | 3.2.10 | No | EOL |
| 3.1 | Jul 8, 2024 | - | Feb 12, 2025 | 3.1.10 | No | EOL |
| 3.0 | Mar 21, 2024 | - | Oct 8, 2024 | 3.0.7 | No | EOL |
| 2.2 | Nov 6, 2023 | - | Jun 21, 2024 | 2.2.3 | No | EOL |
| 2.1 | Apr 18, 2023 | - | Feb 6, 2024 | 2.1.10 | No | EOL |
| 2.0 | Oct 25, 2022 | - | Jul 19, 2023 | 2.0.14 | No | EOL |
| 1.9 | Mar 11, 2022 | - | Dec 5, 2022 | 1.9.10 | No | EOL |
| 1.8 | Jul 7, 2021 | - | Dec 5, 2022 | 1.8.15 | No | EOL |
| 1.7 | Feb 14, 2021 | - | Yes | 1.7.9 | No | EOL |
| 1.6 | Oct 8, 2020 | - | Yes | 1.6.10 | No | EOL |
| 1.5 | Jul 13, 2020 | - | Yes | 1.5.7 | No | EOL |
| 1.4 | Mar 25, 2020 | - | Yes | 1.4.6 | No | EOL |
| 1.3 | Sep 30, 2019 | - | Yes | 1.3.11 | No | EOL |
| 1.2 | Jun 26, 2019 | - | Yes | 1.2.2 | No | EOL |
| 1.1 | May 8, 2019 | - | Yes | 1.1.3 | No | EOL |
| 1.0 | Dec 13, 2018 | - | Yes | 1.0.6 | No | EOL |
| 0.14 | Aug 29, 2018 | - | Yes | 0.14.9 | No | EOL |
| 0.13 | Aug 18, 2018 | - | Yes | 0.13.8 | No | EOL |
| 0.12 | Aug 17, 2017 | - | Yes | 0.12.19 | No | EOL |
| 0.11 | Mar 30, 2017 | - | Yes | 0.11.17 | No | EOL |
| 0.10 | Dec 30, 2016 | - | Yes | 0.10.1 | No | EOL |
Frequently Asked Questions
Which versions of Fluent Bit have reached end of life?
The following Fluent Bit versions have reached end of life and no longer receive security updates: 4.1, 4.0, 3.2, 3.1, 3.0, 2.2, 2.1, 2.0 (and 15 more). It is recommended to upgrade to a supported version.
Is it safe to continue using Fluent Bit 4.1?
Fluent Bit 4.1 has reached end of life and no longer receives security patches or bug fixes. Continuing to use it may expose your systems to known vulnerabilities. We strongly recommend upgrading to a supported version.
What is the latest version of Fluent Bit?
The latest version of Fluent Bit is 4.2.2, released in the 4.2 release cycle.
How many versions of Fluent Bit are currently supported?
Fluent Bit currently has 1 actively supported version(s): 4.2.
When does Fluent Bit 4.2 reach end of life?
Fluent Bit 4.2 does not have a specific end-of-life date announced yet.
What should I do when Fluent Bit reaches end of life?
When a Fluent Bit version reaches end of life, you should: 1) Plan your migration to a supported version as soon as possible. 2) Review the release notes for breaking changes. 3) Test your applications thoroughly in a staging environment. 4) Update your dependencies to ensure compatibility with the new version.