# Micronaut v5.1.4 — Micronaut Core 5.1.4

- Product: Micronaut (https://whatsnew.fyi/product/micronaut)
- Vendor: Micronaut Foundation
- Date: 2026-07-08
- Version: v5.1.4
- Original notes: https://github.com/micronaut-projects/micronaut-core/releases/tag/v5.1.4
- Permalink: https://whatsnew.fyi/product/micronaut/releases/v5.1.4

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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- **fixed** — Ensure ByteBuf release during writes
- **fixed** — Track JRT file system for cleanup
- **fixed** — Fix introspection for generated Jackson models
- **changed** — Update logback-classic to v1.5.37
- **changed** — Update Netty to 4.2.16.Final

<!-- Release notes generated using configuration in .github/release.yml at 5.1.x -->

##### What's Changed
###### Improvements ⭐
* sonar: Suppress false stream warning in StreamPair by @sdelamo in https://github.com/micronaut-projects/micronaut-core/pull/12767
* Ensure ByteBuf release during writes by @sdelamo in https://github.com/micronaut-projects/micronaut-core/pull/12769
* Track JRT file system for cleanup by @sdelamo in https://github.com/micronaut-projects/micronaut-core/pull/12768
###### Dependency updates 🚀
* Update dependency ch.qos.logback:logback-classic to v1.5.37 by @renovate[bot] in https://github.com/micronaut-projects/micronaut-core/pull/12770
* Netty 4.2.16.Final by @sdelamo in https://github.com/micronaut-projects/micronaut-core/pull/12777
###### Other Changes 💡
* Suppress Sonar warning for EventLoopFlow checks by @sdelamo in https://github.com/micronaut-projects/micronaut-core/pull/12766
* Fix introspection for generated Jackson models by @dstepanov in https://github.com/micronaut-projects/micronaut-core/pull/12783


**Full Changelog**: https://github.com/micronaut-projects/micronaut-core/compare/v5.1.3...v5.1.4