# Quarkus 3.39.1

- Product: Quarkus (https://whatsnew.fyi/product/quarkus)
- Vendor: Red Hat
- Date: 2026-08-26
- Version: 3.39.1
- Original notes: https://github.com/quarkusio/quarkus/releases/tag/3.39.1
- Permalink: https://whatsnew.fyi/product/quarkus/releases/3.39.1

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** — Database dev services are now reused when unit tests use @QuarkusTestResource
- **fixed** — Remote Dev no longer fails when using the hibernate-reactive extension
- **fixed** — @RunOnVirtualThread annotation now works correctly in combination with blocking endpoints
- **fixed** — Date serialization issue in Quarkus 3.38
- **fixed** — Container image Jib push progress is now logged correctly
- **fixed** — Dev UI Dev MCP endpoint no longer hangs indefinitely when a JSON-RPC request's id is a string
- **fixed** — quarkus-rest-jackson reflection-free deserializers no longer treat Map subclasses as beans and drop map entries
- **fixed** — quarkus-spring-security now fails the build when @PostAuthorize, @PreFilter or @PostFilter are used
- **fixed** — Hibernate dev integrator is skipped in remote server-side dev mode
- **fixed** — MongoDB Panache no longer commits sessions on JTA transaction rollback
- **fixed** — Invalid country code is no longer set when generating the Quarkus Dev CA
- **fixed** — quarkus-config-doc-maven-plugin no longer picks up things from git worktrees
- **fixed** — REST Client @RestClient qualifier on the interface no longer causes duplicate annotation build failure
- **fixed** — Redis replication with topology=static now respects configured host ordering
- **changed** — Terminal provider SPI is now registered and FFM init is deferred for native images
- **changed** — QuarkusMainTest no longer rebuilds the application for every launch
- **changed** — Aesh and aesh-readline upgraded with FFM downcall and customizers fixes

###### Complete changelog

  * [#48943](https://github.com/quarkusio/quarkus/issues/48943) - From Quarkus 3.22, Database dev services not reused if the unit test is using a `@QuarkusTestResource`
  * [#51130](https://github.com/quarkusio/quarkus/issues/51130) - Remote Dev fails when using hibernate-reactive extension
  * [#55389](https://github.com/quarkusio/quarkus/pull/55389) - Fix `@RunOnVirtualThread` annotation in combination with blocking endpoints
  * [#55907](https://github.com/quarkusio/quarkus/issues/55907) - Quarkus 3.38 Date serialization issue
  * [#55958](https://github.com/quarkusio/quarkus/issues/55958) - container-image-jib: no progress output while the image is pushed, because ProgressEvent is never subscribed to
  * [#55959](https://github.com/quarkusio/quarkus/pull/55959) - Jib container push progress log
  * [#56009](https://github.com/quarkusio/quarkus/issues/56009) - Dev UI Dev MCP endpoint hangs indefinitely (no response, no error) when a JSON-RPC request's id is a string
  * [#56064](https://github.com/quarkusio/quarkus/issues/56064) - `quarkus-rest-jackson`: reflection-free (de)serializers treat a `Map` subclass as a bean and drop every map entry
  * [#56070](https://github.com/quarkusio/quarkus/issues/56070) - quarkus-spring-security may not fail the build when `@PostAuthorize`, `@PreFilter` or `@PostFilter` are used
  * [#56079](https://github.com/quarkusio/quarkus/pull/56079) - Skip Hibernate dev integrator in remote server-side dev mode 
  * [#56080](https://github.com/quarkusio/quarkus/issues/56080) - MongoDB Panache: Session-commit on transaction rollback
  * [#56086](https://github.com/quarkusio/quarkus/pull/56086) - [3.39] Do not set an invalid country code when generating the Quarkus Dev CA
  * [#56087](https://github.com/quarkusio/quarkus/pull/56087) - [3.39] Handle string JSON-RPC ids and always respond on the Dev MCP endpoint (3.39 backport)
  * [#56088](https://github.com/quarkusio/quarkus/pull/56088) - Fail the build when unsupported Spring Security annotations are used
  * [#56092](https://github.com/quarkusio/quarkus/pull/56092) - [3.39] Revert "Disable the Quarkus Dev CA generation test on Windows"
  * [#56101](https://github.com/quarkusio/quarkus/pull/56101) - Document that CORS cannot be configured both programmatically and with properties
  * [#56104](https://github.com/quarkusio/quarkus/issues/56104) - quarkus-config-doc-maven-plugin picks up things from git worktrees that it should ignore
  * [#56105](https://github.com/quarkusio/quarkus/pull/56105) - Don't descend into nested git checkouts when scanning for config-doc target directories
  * [#56130](https://github.com/quarkusio/quarkus/pull/56130) - Register terminal provider SPI and defer FFM init for native images
  * [#56131](https://github.com/quarkusio/quarkus/pull/56131) - docs: clean up independently maintained CORS guide
  * [#56132](https://github.com/quarkusio/quarkus/issues/56132) - Redis replication with topology=static does not respect host ordering - Set<URI> loses master/replica order
  * [#56158](https://github.com/quarkusio/quarkus/issues/56158) - REST Client: `@RestClient` on the interface fails the build with a duplicate annotation since 3.32
  * [#56159](https://github.com/quarkusio/quarkus/pull/56159) - Ignore a `@RestClient` qualifier placed on the REST Client interface
  * [#56166](https://github.com/quarkusio/quarkus/pull/56166) - Fix MongoDB Panache committing sessions after a JTA transaction timeout
  * [#56177](https://github.com/quarkusio/quarkus/pull/56177) - Bump io.micrometer:micrometer-bom from 1.17.0 to 1.17.1
  * [#56183](https://github.com/quarkusio/quarkus/pull/56183) - Redis: make sure the configured hosts are ordered
  * [#56192](https://github.com/quarkusio/quarkus/pull/56192) - Do not rebuild the application for every launch of a QuarkusMainTest
  * [#56197](https://github.com/quarkusio/quarkus/pull/56197) - Upgrade aesh, aesh-readline, fix ffm downcall and customizers
  * [#56204](https:/

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