--- title: Micronaut Framework 5.2.3 Released! | daily.dev description: Micronaut Framework 5.2.3 is a security release, and all users are strongly urged to update. Micronaut Core 5.2.17 fixes eight security advisories and... canonical: https://daily.dev/posts/micronaut-framework-5-2-3-released--0tivbh1iw twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Micronaut Framework 5.2.3 Released! | daily.dev og:description: Micronaut Framework 5.2.3 is a security release, and all users are strongly urged to update. Micronaut Core 5.2.17 fixes eight security advisories and... og:url: https://daily.dev/posts/micronaut-framework-5-2-3-released--0tivbh1iw og:image: https://api.daily.dev/og/posts/0tIvbH1iw.png og:image:alt: Micronaut Framework 5.2.3 Released! og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Micronaut Framework 5.2.3 Released! **[Micronaut Framework](https://daily.dev/sources/micronaut)** · 2 min read · 0 upvotes · 0 comments ## Summary Micronaut Framework 5.2.3 is a security release, and all users are strongly urged to update. Micronaut Core 5.2.17 fixes eight security advisories and Micronaut Security 5.4.1 fixes two. The release also bundles Micronaut Data 5.2.3, Object Storage 3.1.1, and Serialization 3.2.5. Users on Framework 4 should update to Platform 4.10.22, and users on Framework 3 should update to Core 3.10.17, both of which carry the same security fixes. Core 5.2.17 also adds Python-native streaming support, including async iteration over publishers and async generators as publishers, plus fixes for HTTP range requests and streamed uploads and responses. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How many security advisories does Micronaut Core 5.2.17 fix? Micronaut Core 5.2.17 fixes eight security advisories, and Micronaut Security 5.4.1 fixes two more, for a total of ten across the Micronaut Framework 5.2.3 release. The Micronaut Foundation strongly recommends all users update to 5.2.3 to receive these fixes. _Teams running Micronaut track security releases like this one on daily.dev to patch before exposure._ ### I'm still on Micronaut Framework 4, how do I get the latest security fixes? Update to Micronaut Platform 4.10.22, which bundles Micronaut Core 4.10.33 and Micronaut Security 4.18.1 with the corresponding security fixes from the Framework 5.2.3 release. Framework 3 users should instead update to Micronaut Core 3.10.17, the latest Framework 3 release containing the same fixes. _Developers maintaining older Micronaut versions follow patch guidance like this on daily.dev._ ### What changed in Micronaut Serialization 3.2.5? Micronaut Serialization 3.2.5 fixes generated serializer support for the @JsonProperty and @JsonGetter annotations, and now prefers user-defined serde beans over generated serializers for the same type. This is bundled as part of the Micronaut Framework 5.2.3 security release. _Developers debugging JSON serialization in Micronaut apps check release notes like this on daily.dev._ ## Similar posts on daily.dev - [Micronaut 5.0.0-M3 Released\!](https://daily.dev/posts/micronaut-5-0-0-m3-released--3trxdpoa6) · Micronaut Framework · 0 upvotes · 0 comments - [Micronaut 5.0.0-RC1 Released\!](https://daily.dev/posts/micronaut-5-0-0-rc1-released--1t1y548lo) · Micronaut Framework · 0 upvotes · 0 comments - [Java Weekly, Issue 622](https://daily.dev/posts/java-weekly-issue-622-yhsvtmyww) · Baeldung · 3 upvotes · 0 comments - [Micronaut Framework 5.0 with Java 25 baseline](https://daily.dev/posts/micronaut-framework-5-0-with-java-25-baseline-jzv5rp6is) · Micronaut Framework · 18 upvotes · 0 comments --- Tags: [#java](https://daily.dev/tags/java) [View this post on daily.dev](https://daily.dev/posts/micronaut-framework-5-2-3-released--0tivbh1iw) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Micronaut Framework 5.2.3 Released!","url":"https://daily.dev/posts/micronaut-framework-5-2-3-released--0tivbh1iw","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/micronaut-framework-5-2-3-released--0tivbh1iw"},"datePublished":"2026-10-22T19:55:16.541Z","dateModified":"2026-10-22T21:38:47.114Z","description":"Micronaut Framework 5.2.3 is a security release, and all users are strongly urged to update. 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