Fluentd v1.19.1 has been released

2025-11-06
ClearCode, Inc.

fluentd announcement

Hi users!

We have released v1.19.1 on 2025-11-06. ChangeLog is here.

This release is a maintenance release of v1.19 series.

This release will be bundled for upcoming fluent-package LTS version v6.0.1!

Bug Fixes

YAML configuration: Added Support for Array Notation

Previously, when specifying multiple values, you had to use a comma-separated list such as: retryable_response_codes: 503, 504.

With this update, you can now use more YAML-style array notations:

retryable_response_codes: [503, 504]

retryable_response_codes:
  - 503
  - 504

Note: The special element $arg has supported array notation from earlier versions.

Note: There is still a known YAML syntax issue where specifying a single int value for an Array option causes a config error. For details, please refer to #5149.

Enjoy logging!

There are some commercial supports for Fluentd, see Enterprise Services. If you use Fluentd on production, Let's share your use-case/testimonial on Testimonials page. Please consider to feedback Use-Case/Testimonials via GitHub.

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Written by ClearCode, Inc.

ClearCode, Inc. is a software company specializing in the development of Free Software. We maintain Fluentd and its plugin ecosystem, and provide commercial support for them.

About Fluentd

Fluentd is an open source data collector to unify log management.

Announcement Topics

2025-12-25: Drop schedule announcement about EOL of Fluent Package (fluent-package) 5

2025-09-04: Upgrade Guide for fluent-package v6

2024-08-29: Scheduled support lifecycle announcement about Fluent Package v6

2023-08-29: Drop schedule announcement about EOL of Treasure Agent (td-agent) 4

2023-08-29: Scheduled support lifecycle announcement about Fluent Package

2023-07-31: Upgrade to fluent-package v5

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