Fluent Bit v5.2.0

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out_vivo_exporter: fix telemetry loss and add compressed OTLP JSON

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Status: Open (in progress).

fluent/fluent-bitnumber 12418

#12418 In fluent/fluent-bit;

· edsiper opened on Sep 16, 2026

processor_journald_otel: handle journald as otel processed logs

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Status: Open (in progress).

fluent/fluent-bitnumber 12387

#12387 In fluent/fluent-bit;

· cosmo0920 opened on Sep 8, 2026

output: engine: output_throttle: Implement throttle operations for output plugins

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Status: Open (in progress).

fluent/fluent-bitnumber 12393

#12393 In fluent/fluent-bit;

· cosmo0920 opened on Sep 9, 2026

in_tail: Implement budget for max number of opening files

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Status: Open (in progress).

fluent/fluent-bitnumber 12441

#12441 In fluent/fluent-bit;

· cosmo0920 opened on Sep 18, 2026

wasm: add experimental browser runtime and SDK

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Status: Draft (not ready).

fluent/fluent-bitnumber 12429

#12429 In fluent/fluent-bit;

· edsiper opened on Sep 17, 2026

output: mitigate heavy loaded case

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Status: Open (in progress).

fluent/fluent-bitnumber 12484

#12484 In fluent/fluent-bit;

· cosmo0920 opened on Sep 29, 2026

procesor_content_modifier: Accept list on configure

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Status: Open (in progress).

fluent/fluent-bitnumber 12329

#12329 In fluent/fluent-bit;

· cosmo0920 opened on Aug 25, 2026

lib: upgrade bundled jemalloc to 5.4.0

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Status: Open (in progress).

fluent/fluent-bitnumber 12493

#12493 In fluent/fluent-bit;

· edsiper opened on Sep 30, 2026

lib: upgrade LuaJIT and fix CMake wrapper compatibility

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Status: Open (in progress).

fluent/fluent-bitnumber 12503

#12503 In fluent/fluent-bit;

· edsiper opened on Oct 1, 2026