Quarkus 4.0.0.Beta1 released!

NewsBot · 1 October 2026 08:24

Quarkus 4.0.0.Beta1 has been released.

Major changes

#55117 - Prepare for UBI 10

#55145 - Micrometer Observation API Support

#55147 - Set the minimum Java version to Java 21

#55180 - Introduce SPIFFE client extension

#55215 - Rework native transport

#55297 - Port Jackson to version 3

#55356 - Rest Client - Add support for Unix domain socket connections

#55433 - Use prometheus client v1 on Micrometer

#55515 - Support Jakarta REST 4

#55542 - Support Kotlin suspend functions with @CacheResult

#55624 - [4.x] Wire post-quantum (PQC) key exchange through the TLS registry

#55723 - Detect datasource and persistence unit needs from configuration, extension requests, and extension-specific metadata (entities, …)

#55736 - Support for OAuth Client ID Metadata Document

#55765 - Integrate Hibernate 8 into Quarkus

#55768 - Jakarta REST 4 EntityPart support for server and client

#55838 - Make OpenTelemetry Metrics and Logs Stable and ON by default

#55926 - ArC: implement CDI 5.0

#56377 - Dev UI observability

[#56475](https://github…

Link: Release 4.0.0.Beta1 · quarkusio/quarkus · GitHub