We provides the means for the collection, organization and computerized retrieval of knowledgeand Lightweight Data Forwarder for Linux, BSD, macOS and Windows.

November 8, 2022


NOTE: This is a minor hotfix release that covers for corner cases for metrics handling. We keep same release notes as part of v2

Release Notes v2.0.4

Fluent Bit is a Fast and Lightweight Data Processor and Forwarder for Linux, BSD and OSX. We are proud to announce the availability of Fluent Bit v2.0.4.


Fluent Bit v2.0 is the start of the new stable series of the project. During the last months our primary focus has been around extending support for Metrics, Traces and improving performance, among many others.


Fluent Bit v2.0 is the stable release!, new changes on this version:

  • Core
    • bin: fix return type for flb_cf_section_property_add. (#6299)
    • network: added function to set socket receiving buffer size
    • docs: update README and images
    • strptime: use flb_tm instead of tm
    • parser: use flb_tm in all backends and fix timezone support for Windows
    • flb_network: freebsd: Don’t use Linux-like structs on FreeBSD
    • build: wasm: Disable WASM for *BSD
    • env: increase temp buffer size(#6313)
    • input: pthread: Ensure default values of initialization for mutexattr
    • input: fixed how TLS certificate and private key availability is enforced
    • input: added input plugin flag for plugins that expose listeners
    • help: enabled networking help for input plugins that start listeners and enabled TLS help listing.

  • Libs:
    • cmetrics: upgrade to v0.5.6
    • monkey: upgrade to 24e68bbf

  • Plugins
    • Opentelemetry (Output)
      • Upload log as object instead of json string
      • Increase batch size for logs export
    • Forward (Output)
      • Introduce fluentd_compat option for sending Fluentd compatible payloads
      • Make forwardable for msgpack payloads of ctraces and cmetrics
    • Opensearch (Output)
      • Support dynamic index with types
      • Add record accessor support for index property


On every release, there are many people involved doing contributions on different areas like bug reporting, troubleshooting, documentation and coding, without these contributions from the community, the project won’t be the same and won’t be in the good shape that it is now. So THANK YOU! to everyone who takes part of this journey!

Join us

We want to hear about you, our community is growing and you can be part of it!, you can contact us at:

Latest Version

New release on June 11, 2024

Fluent Bit v3.0.7 is out!

Check out the Release Notes, read the Updated Documentation or jump directly to the Downloads Section.

We are part of a wide community, no vendor lock-in.