Fluent Bit End of Life Dates

Fluent Bit, a data collector that streamlines the collection and delivery of data from different sources, has been a crucial tool for developers since its inception. The project is maintained by a community of developers who continually work to improve its functionality and security. Developers rely on Fluent Bit due to its flexibility and ability to handle various data formats, making it an essential component in their data processing pipelines. Created to simplify data collection and forwarding, Fluent Bit has become a staple in many development environments, with its supported versions and security patch timelines being closely monitored by the community.

The end-of-life landscape for Fluent Bit is characterized by a large number of versions that have reached their end of support. Out of the total 25 versions, 23 have already reached their end-of-life, with only 2 active versions remaining. The latest stable version, 4.2.5, is the current standard for development, while version 4.2 is slated to reach its end-of-life on 2026-06-30. This timeline gives developers a clear indication of when they need to plan their upgrades to ensure continued support and security. The most recent version to reach its end-of-life was 4.1, which occurred on 2026-02-11, marking an important milestone in the product's lifecycle.

From a security perspective, Fluent Bit has a spotless record, with 0 CVEs tracked and no critical vulnerabilities reported. As a result, there is no most affected version, and the project is not listed on the Known Exploited Vulnerabilities catalog. This exemplary security record is a testament to the dedication of the developer community and their commitment to maintaining a secure product. Given this information, developers can confidently continue to use Fluent Bit, keeping in mind the upcoming end-of-life dates for the various versions and planning their upgrades accordingly to ensure the long-term security and stability of their applications.