Fluent bit v4.0.3

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out_azure_kusto: support for otel log schema

docs-required

Status: Merged (completed).

fluent/fluent-bitnumber 10173

#10173 In fluent/fluent-bit;

· by dceravigupta was closed on May 30, 2025

gzip: fix handling of concatenated payloads

docs-required

Status: Merged (completed).

fluent/fluent-bitnumber 10204

#10204 In fluent/fluent-bit;

· by edsiper was closed on May 27, 2025

in_exec_wasi: change wasm_runtime_call_wasm to wasm_application_execute_main to support latest version of tinygo

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Status: Merged (completed).

fluent/fluent-bitnumber 10032

#10032 In fluent/fluent-bit;

· by St1gven was closed on May 29, 2025

lib: miniz: only require a C compiler

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Status: Merged (completed).

fluent/fluent-bitnumber 10315

#10315 In fluent/fluent-bit;

· by ThomasDevoogdt was closed on May 29, 2025

simdutf_connector: in_tail: skip UTF-16/UTF-8 BOM

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Status: Merged (completed).

fluent/fluent-bitnumber 10328

#10328 In fluent/fluent-bit;

· by erikced was closed on May 28, 2025

in_opentelemetry: Configurable logs_body_key

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Status: Merged (completed).

fluent/fluent-bitnumber 10335

#10335 In fluent/fluent-bit;

· by prashantv was closed on May 20, 2025

out_azure_blob: added buffering to azure blob

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Status: Merged (completed).

fluent/fluent-bitnumber 10263

#10263 In fluent/fluent-bit;

· by tanmaya-panda1 was closed on May 29, 2025

api: proxy: custom: Implement APIs for custom Go plugins

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Status: Merged (completed).

fluent/fluent-bitnumber 10299

#10299 In fluent/fluent-bit;

· by cosmo0920 was closed on May 29, 2025

config: error configure_plugins_type on invalid properties

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Status: Merged (completed).

fluent/fluent-bitnumber 10296

#10296 In fluent/fluent-bit;

· by stoksc was closed on May 29, 2025

engine: expose internal logging call counts as internal metrics

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Status: Merged (completed).

fluent/fluent-bitnumber 10326

#10326 In fluent/fluent-bit;

· by alecholmes was closed on May 28, 2025

http_client: fix muti part http2 request not working

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Status: Merged (completed).

fluent/fluent-bitnumber 9818

#9818 In fluent/fluent-bit;

· by flobz was closed on May 19, 2025

processor_sampling: tail: fix spans reconcile processes

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Status: Merged (completed).

fluent/fluent-bitnumber 10391

#10391 In fluent/fluent-bit;

· by edsiper was closed on May 29, 2025

in_forward: fix handling of connections and memory on exceptions

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Status: Merged (completed).

fluent/fluent-bitnumber 10407

#10407 In fluent/fluent-bit;

· by edsiper was closed on May 30, 2025

in_http: validate memory allocation and fix object type on tag key

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Status: Merged (completed).

fluent/fluent-bitnumber 10408

#10408 In fluent/fluent-bit;

· by edsiper was closed on May 30, 2025

in_opentelemetry: handle exception on unsupported compress format

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Status: Merged (completed).

fluent/fluent-bitnumber 10410

#10410 In fluent/fluent-bit;

· by edsiper was closed on May 30, 2025

out_azure_kusto: fix segfault when log level is debug or trace

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Status: Merged (completed).

fluent/fluent-bitnumber 10409

#10409 In fluent/fluent-bit;

· by edsiper was closed on May 30, 2025

test: stream_processor: Plug a SEGV for macOS

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Status: Merged (completed).

fluent/fluent-bitnumber 10404

#10404 In fluent/fluent-bit;

· by cosmo0920 was closed on May 30, 2025

build: ci: tune MSVC flags, modify ci caching

ci

ok-package-testRun PR packaging testsRun PR packaging tests

Status: Merged (completed).

fluent/fluent-bitnumber 10343

#10343 In fluent/fluent-bit;

· by erikced was closed on May 23, 2025

in_node_exporter: removed unnecessary optimization that caused crash

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Status: Merged (completed).

fluent/fluent-bitnumber 10347

#10347 In fluent/fluent-bit;

· by leonardo-albertovich was closed on May 19, 2025

input: fixed threaded input processor initialization

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Status: Merged (completed).

fluent/fluent-bitnumber 10402

#10402 In fluent/fluent-bit;

· by edsiper was closed on May 30, 2025

in_forward: Check return values from mutex functions

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Status: Merged (completed).

fluent/fluent-bitnumber 10399

#10399 In fluent/fluent-bit;

· by cosmo0920 was closed on May 29, 2025

utils: if flb_utils_write_str uses SIMD, add missing highbit_set check() detection

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Status: Merged (completed).

fluent/fluent-bitnumber 10401

#10401 In fluent/fluent-bit;

· by edsiper was closed on May 30, 2025

gzip: fix decompressor memset usage

docs-required

Status: Merged (completed).

fluent/fluent-bitnumber 10403

#10403 In fluent/fluent-bit;

· by edsiper was closed on May 30, 2025

go: plugin_proxy: error on plugin initialization errors

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Status: Merged (completed).

fluent/fluent-bitnumber 10354

#10354 In fluent/fluent-bit;

· by stoksc was closed on May 27, 2025

engine: fix segfault in flb_config_init error case

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Status: Merged (completed).

fluent/fluent-bitnumber 10355

#10355 In fluent/fluent-bit;

· by alecholmes was closed on May 20, 2025