Fluent Bit v4.2

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dockerfile: removed unused DLLs from image for Windows Containers

docs-required

Status: Merged (completed).

fluent/fluent-bitnumber 10233

#10233 In fluent/fluent-bit;

· by mabrarov was closed on Nov 5, 2025

build: workflows: Add a rules for checking incompatible types strictly

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Status: Merged (completed).

fluent/fluent-bitnumber 10655

#10655 In fluent/fluent-bit;

· by cosmo0920 was closed on Nov 5, 2025

storage: config: engine: Introduce dead letter queue

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Status: Merged (completed).

fluent/fluent-bitnumber 11000

#11000 In fluent/fluent-bit;

· by cosmo0920 was closed on Nov 10, 2025

filter_kubernetes: use service account issuer to detect EKS env

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Status: Closed (abandoned).

fluent/fluent-bitnumber 11002

#11002 In fluent/fluent-bit;

· by movence was closed on Nov 10, 2025

tls: openssl: output: Handle certificates thumbprints

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Status: Merged (completed).

fluent/fluent-bitnumber 11009

#11009 In fluent/fluent-bit;

· by cosmo0920 was closed on Nov 6, 2025

out_http: Plug a NULL dereference

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Status: Merged (completed).

fluent/fluent-bitnumber 11034

#11034 In fluent/fluent-bit;

· by cosmo0920 was closed on Nov 9, 2025

build: Link system libzstd when enabling in_systemd plugin

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ok-package-testRun PR packaging testsRun PR packaging tests

Status: Closed (abandoned).

fluent/fluent-bitnumber 11088

#11088 In fluent/fluent-bit;

· by cosmo0920 was closed on Nov 5, 2025

router_condition: Fix unconditional route check in routing

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Status: Merged (completed).

fluent/fluent-bitnumber 11087

#11087 In fluent/fluent-bit;

· by cosmo0920 was closed on Nov 1, 2025

router: add contexts to conditional support for direct route paths

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Status: Merged (completed).

fluent/fluent-bitnumber 11091

#11091 In fluent/fluent-bit;

· by edsiper was closed on Nov 1, 2025

fix: Make TLS initialization thread-safe and idempotent using pthread_once

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Status: Merged (completed).

fluent/fluent-bitnumber 11090

#11090 In fluent/fluent-bit;

· by ThomasBrady was closed on Nov 7, 2025

wasm: Plug wasm heap leakages

backport to v4.0.x

backport to v4.1.x

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Status: Merged (completed).

fluent/fluent-bitnumber 11076

#11076 In fluent/fluent-bit;

· by cosmo0920 was closed on Nov 6, 2025

scheduler: engine: output_thread: Plug macOS abort on dry-run

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Status: Merged (completed).

fluent/fluent-bitnumber 11099

#11099 In fluent/fluent-bit;

· by cosmo0920 was closed on Nov 6, 2025

out_opensearch: release aws signature a retry or error happens

backport to v4.1.x

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Status: Merged (completed).

fluent/fluent-bitnumber 11140

#11140 In fluent/fluent-bit;

· by edsiper was closed on Nov 9, 2025

org: update organization status change

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Status: Merged (completed).

fluent/fluent-bitnumber 11143

#11143 In fluent/fluent-bit;

· by edsiper was closed on Nov 9, 2025

routing: extend input name resolution for safer direct route paths

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Status: Merged (completed).

fluent/fluent-bitnumber 11141

#11141 In fluent/fluent-bit;

· by edsiper was closed on Nov 9, 2025

routing: introduce metrics for unmatched (dropped) logs

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Status: Merged (completed).

fluent/fluent-bitnumber 11144

#11144 In fluent/fluent-bit;

· by edsiper was closed on Nov 9, 2025

out_s3: Add a NULL check for plugging SEGV on dry_run

backport to v4.1.x

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Status: Merged (completed).

fluent/fluent-bitnumber 11117

#11117 In fluent/fluent-bit;

· by cosmo0920 was closed on Nov 6, 2025

aws_credential_sts: internal: Fix unit test failures

backport to v4.0.x

backport to v4.1.x

docs-required

Status: Merged (completed).

fluent/fluent-bitnumber 11077

#11077 In fluent/fluent-bit;

· by cosmo0920 was closed on Oct 30, 2025

in_syslog: Add support for RFC 6587 octet-counting

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Status: Merged (completed).

fluent/fluent-bitnumber 11035

#11035 In fluent/fluent-bit;

· by cosmo0920 was closed on Nov 6, 2025

in_node_exporter_metrics: add netstat linux collector

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Status: Merged (completed).

fluent/fluent-bitnumber 11052

#11052 In fluent/fluent-bit;

· by edsiper was closed on Oct 20, 2025

fstore: safe check on fsf file deletion

backport to v4.0.x

backport to v4.1.x

Status: Merged (completed).

fluent/fluent-bitnumber 11050

#11050 In fluent/fluent-bit;

· by edsiper was closed on Oct 20, 2025

router: add conditional support for Logs

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Status: Merged (completed).

fluent/fluent-bitnumber 11055

#11055 In fluent/fluent-bit;

· by edsiper was closed on Oct 30, 2025

in_tail: Implement long line truncation

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Status: Merged (completed).

fluent/fluent-bitnumber 11059

#11059 In fluent/fluent-bit;

· by cosmo0920 was closed on Nov 10, 2025

out_http: Added PUT support

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Status: Merged (completed).

fluent/fluent-bitnumber 10882

#10882 In fluent/fluent-bit;

· by nicknezis was closed on Nov 9, 2025

out_vivo_exporter: add versioned API endpoints

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Status: Merged (completed).

fluent/fluent-bitnumber 11040

#11040 In fluent/fluent-bit;

· by edsiper was closed on Nov 1, 2025