# Fluent Bit v5.0.10 — Fluent Bit 5.0.10

- Product: Fluent Bit (https://whatsnew.fyi/product/fluent-bit)
- Vendor: Fluent
- Date: 2026-09-04
- Version: v5.0.10
- Original notes: https://github.com/fluent/fluent-bit/releases/tag/v5.0.10
- Permalink: https://whatsnew.fyi/product/fluent-bit/releases/v5.0.10

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **added** — Add a capability to adjust log level with error paths in in_node_exporter_metrics
- **added** — Enrich EventData key-value map if enabled in in_winevtlog
- **fixed** — Yield downstream read retries to the event loop in TLS
- **fixed** — Handle empty map even if avro schema defines map type in out_kafka
- **fixed** — Preserve syscall error details in TLS OpenSSL

https://fluentbit.io/announcements/v5.0.10/

##### What's Changed
* workflows: bump docker/login-action from 4.3.0 to 4.4.0 by @dependabot[bot] in https://github.com/fluent/fluent-bit/pull/12055
* release: update to 5.0.10 by @github-actions[bot] in https://github.com/fluent/fluent-bit/pull/12047
* in_node_exporter_metrics: Add a capability to adjust log level w/ error paths [Backport to 5.0] by @cosmo0920 in https://github.com/fluent/fluent-bit/pull/12121
* github: workflows: Enable unit testing on 5.0 branch [Backport to 5.0] by @cosmo0920 in https://github.com/fluent/fluent-bit/pull/12123
* in_winevtlog: Enrich EventData key-value map if enabled [Backport to 5.0] by @cosmo0920 in https://github.com/fluent/fluent-bit/pull/12162
* tls: yield downstream read retries to the event loop [Backport to 5.0] by @cosmo0920 in https://github.com/fluent/fluent-bit/pull/12141
* avro: out_kakfa: handle empty map even if avro schema defines map type [Backport to 5.0] by @cosmo0920 in https://github.com/fluent/fluent-bit/pull/12210
* tls: openssl: preserve syscall error details (5.0) by @edsiper in https://github.com/fluent/fluent-bit/pull/12179
* github: workflows: Update release workflow for 5.1 development cycle [Backport to 5.0] by @cosmo0920 in https://github.com/fluent/fluent-bit/pull/12231
* backport: apply selected maintenance fixes to 5.0 by @edsiper in https://github.com/fluent/fluent-bit/pull/12340


**Full Changelog**: https://github.com/fluent/fluent-bit/compare/v5.0.9...v5.0.10