NEWSLETTER ISSUE #62 - November 2025

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You’re Only Using Half of Quarkus: 10 Hidden Features That Change Everything

You’re Only Using Half of Quarkus: 10 Hidden Features That Change Everything

By Markus Eisele

Discover what most Java developers miss—AI assistants, dynamic Qute templates, auto-refreshing tokens, and reactive magic.

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How to Secure Your A2A Server Agent with Keycloak OAuth2

By Farah Juma

This blog post shows how to secure an A2A server agent using OAuth2 bearer tokens via Keycloak and shows how to enable an A2A client to automatically obtain and pass the required token in each request.

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Hexagonal Architecture in Java: Structuring Your APIs for Maintainability

By lostyzen

Complete guide to hexagonal architecture in Java with Quarkus: structure, concrete examples, testing, and best practices for maintainable and scalable APIs.

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Hexagonal Architecture in Java: Structuring Your APIs for Maintainability

Image by Jorge César from Unsplash

Continued Focus on Native

Image by Cam Ballard from Unsplash

Continued Focus on Native

By Severin Gehwolf

Quarkus continues to focus on native for swift start-up time and low memory footprint.

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Quarkus - a component testing update

By Martin Kouba

If you want to test the business logic of your components in isolation, with different configurations and inputs, then QuarkusComponentTest is a good choice. It’s fast, integrated with continuous testing, and extensible. 

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Quarkus - a component testing update

Image by Anne Nygård from Unsplash

Dynamic UI Composition with Quarkus Qute: The Future of Java Frontends

By Markus Eisele

Explore Qute’s dynamic include feature in Quarkus 3.26 and learn how to build modular, data-driven dashboards for modern enterprise apps.

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Get support for your Quarkus application

Get Red Hat build of Quarkus 3.20, a downstream enterprise-supported version of Quarkus. Learn about support options.

Red Hat Build of Quarkus 3.20 Documentation

Top Social Posts & Discussions

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Github Discussions is Quarkus's place for community collaboration, conversation, events, Q&A, job opportunities, and other great community topics.

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Videos of the Month

Quarkus Insights #225: Quarkus Roq in the Real-World

Quarkus Insights #225: Quarkus Roq in the Real-World

Quarkus Insights #224: Six and a half ridiculous things to do with Quarkus

EPISODE #224: Six and a half ridiculous things to do with Quarkus

Quarkus Insights #223: Evolution of Java Code Execution

Quarkus Insights #223: Evolution of Java Code Execution

Upcoming Events with Quarkus

YOW! Melbourne conference 2025

YOW! Melbourne

Date: December 3-5, 2025
Location: Melbourne, Australia
Event Type: In Person

This edition will shine a light on agentic workflows and autonomous systems – secure, intelligent, and increasingly capable. Whether you’re working with Model Context Protocol (MCP), building multi-agent architectures (A2A), experimenting with (Java) LLM-based Agent libraries, doing LLM inference using Java on GPU, or Spec-Driven-Development, Devoxx is the stage to share your tools, insights, and ideas.

YOW! Brisbane conference 2025

YOW! Brisbane

Date: December 8-9, 2025
Location: Brisbane, Australia
Event Type: In Person

YOW! brings together leading software development industry experts from all over the world for an in-depth look at emerging technologies and best practices without commercial hype.

YOW! Sydney conference 2025

YOW! Sydney 2025

Date: December 10-12, 2025
Location: Sydney, Australia
Event Type: In Person

YOW! brings together leading software development industry experts from all over the world for an in-depth look at emerging technologies and best practices without commercial hype.

Jfokus 2026

Jfokus

Date: February 2-4, 2026
Location: Stockholm, Sweden
Event Type: In Person

Jfokus is all about developers! Java SE & Java EE, Frontend & Web, GenAI and AI, Continuous Delivery & DevOps, Cloud & Big Data, Future & Trends, Alt.JVM Languages, Agile development. And Norse gods...

JavaLand 2026

JavaLand

Date: March 10-12, 2026
Location: Rust, Germany
Event Type: In Person

Back to the roots and off to the amusement park! JavaLand 2026 welcomes you from March 10 to 12 to Europa-Park! Discover the program with nearly 130 presentations across 13 different topics now!

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Quarkus is supersonic subatomic java.