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News & insights

Explore the latest news from Fluent Bit.
Research analysis, and perspectives for our latest projects

Oct 28, 2025

Security Vulnerabilities Addressed in Fluent Bit v4.1 and Backported to v4.0

Summary of security issues reported and remediated in Fluent Bit v4.2, v4.1.1, and v4.0.13, including path traversal, stack buffer overflow, and authentication bypass fixes.

Jul 9, 2025

Fluent Bit v4.0.4

Fluent Bit v4.0.4 introduces powerful OTLP improvements, Lua metadata access, encoding support for Asian markets, and secure MSK IAM authentication.

Apr 1, 2025

Fluent Bit v4.0

Celebrating new features and 10th anniversary

Feb 28, 2025

Meet Fluent Bit v3.2.7!

Announcing the release of Fluent Bit v3.2.7 bringing new features, critical security patches, and performance improvements.

May 21, 2024

Statement on CVE-2024-4323 and its fix

We'd like to make sure you’re aware of a security vulnerability (known as CVE-2024-4323) that impacts Fluent Bit versions 2.0.7 through 3.0.3. The latest version of Fluent Bit, version 3.0.4, fixes this issue.

Mar 19, 2024

Announcing Fluent Bit v3

The new release allows the filtering of Windows and MacOS metrics, supports SQL for parsing logs, adds support for HTTP/2, and more.

Mar 13, 2024

Send distributed traces to AWS X-Ray using Fluent Bit

Commonly used for logging, Fluent Bit is also capable of handling traces. Learn how Fluent Bit collects and sends OTel-compliant tracing data to AWS X-Ray.

Jan 29, 2024

A practical guide for avoiding data loss and backpressure problems with Fluent Bit

A practical guide on how to detect and avoid backpressure problems with Fluent Bit by balancing memory-based and filesystem-based buffering.

Nov 30, 2023

Kubernetes Metadata Enrichment with Fluent Bit (with Troubleshooting Tips)

Learn how to enrich Kubelet logs with metadata from the K8s API server using Fluent Bit along with troubleshooting tips for common misconfigurations.

Nov 16, 2023

Meet Fluent Bit v2.2!

Announcing the release of Fluent Bit v2.2! Watch the project update from Observability Day at KubeCon and read about some of the highlights from the new release.

Nov 13, 2023

Convert Logs To Metrics in Legacy Applications Using Fluent Bit

Learn how Fluent Bit can derive metrics from application logs, helping to bridge the gap between limited telemetry sources and comprehensive observability.

Oct 5, 2023

Dynamic Log Routing Based On Kubernetes Labels using Fluent Bit & WASM

Use Fluent Bit's WASM plugin to process and evaluate Kubernetes labels in streaming logs and determine where the log data should be routed for storage.

Sep 25, 2023

Fluent Bit surpasses 10 billion Docker pulls!

That’s billion, with a “B.” It is currently averaging over 23 million pulls per day. That’s 270 pulls every second, 24/7

Aug 28, 2023

Fluent Bit: Alerting via Slack when the log destination is unreachable

Learn how to use Fluent Bit to identify irregularities in the data pipeline as they occur and send alerts to Slack

Aug 8, 2023

Use Fluent Bit to Enrich Logs with Kubernetes Metadata, Automatically

Learn how Kubernetes metadata can enhance traceability and enrich diagnostics and how Fluent Bit makes it possible

Mar 1, 2023

How to send Logs to Loki using Fluent Bit

A guide to using Fluent Bit to send logs to Loki along with a discussion about why this is a better option than using the agent provided by Grafana.

Feb 6, 2023

Send Logs to Elasticsearch Service using Fluent Bit

A step-by-step guide demonstrating how to send logs to Elasticsearch using Fluent Bit to gather, process, and ship the logs.

Apr 4, 2022

Detect Sensitive Data With the Nightfall Filter Plugin

Learn how to set up the Nightfall filter plugin to start detecting sensitive data in your logging pipeline

Jan 25, 2021

Logging : Fluentd with Kubernetes

More people use Kubernetes in production today as you can find more from the CNCF survey conducted earlier 2020.

Jan 17, 2021

Diagtool for Fluent Bit is ready

Diatool now supports Fluent Bit! Tool was just released as v.1.0, and now you can automate your troubleshooting process for both Fluentd and Fluent Bit.

Dec 29, 2020

5 minute guide to deploying Fluent Bit on Kubernetes

Get started deploying Fluent Bit on top of Kubernetes in 5 minutes, with a walkthrough using the helm chart and sending data to Splunk.

Dec 15, 2020

Multiline logging with with Fluent Bit

Learn about how to handle multiline logging with Fluent Bit with suggestions and an example of multiline parser

Dec 3, 2020

Common Architecture Patterns with Fluentd and Fluent Bit

Learn common ways to deploy Fluent Bit and Fluentd. Including forwarder-aggregator, side-car/agent, and network device aggregator pattern

Dec 2, 2020

Supercharge Your Logging Pipeline with Fluent Bit Stream Processing

Learn how to use Fluent Bit Stream Processing to reduce log volume, pre-process your data, and use time-series predictions

Jun 27, 2017

Cloud Native Logging

The original draft post about Fluent Bit while back in 2017.