Elasticsearch 7 → 8 is not a simple upgrade.
It’s a migration.
New clients, #SecurityByDesign and API changes make this more complex than many teams expect — we’ve seen it firsthand.
We break down what really changes on the Karakun #DeveloperHub when moving from #Elasticsearch 7.17 to 8.19, including client updates, mappings and error handling.
Practical guide (incl. code & pitfalls):
https://dev.karakun.com/2026/03/26/elasticsearch-7-to-8-migration-guide.html
Accessibility can feel like standing at the start of a marathon 🏃
The distance looks huge.
And many teams don’t know where to begin.
Especially with the European Accessibility Act approaching.
Start small:
1️⃣ learn the basics (#WCAG)
2️⃣ improve things step by step
3️⃣ share what you learn
Our UX expert Cindy Hürlimann explains how to get started in her latest #DeveloperHub article:
The biggest risk in #AI integration isn’t the model. It’s architectural discipline.
A demo is easy. Integrating AI reliably into existing systems without rebuilding core systems is where it gets complex.
In our new #DeveloperHub article, we show how to introduce a controlled AI layer in front of existing applications with structured outputs, validation, and testability built in.
No black-box integration.
No forced modernization.
Many tech conferences deliver great talks — but little meaningful exchange.
At #Devoxx Morocco 2025, deep #Java and #CloudNative topics met a strong, open developer community.
#Karakun expert @irynadohndorf shares her first-hand perspective in a #DeveloperHub article on why this conference has become an important platform for emerging and established talent in the MEA region.
👉 Full article:
https://dev.karakun.com/2025/12/18/DevoxxMA.html
#DeveloperCommunity #SoftwareEngineering #ResilienceEngineering
Local storage remains a weak spot in many #Java apps handling regulated or sensitive data.
On the #Karakun #DeveloperHub, our expert Hannes looks at EncryptedFileChannel - an open-source drop-in replacement for FileChannel that applies transparent, authenticated encryption (AEAD) via Google Tink to all NIO reads/writes.
Minimal code changes, no custom crypto, full compatibility.
Read the full article 👉 https://dev.karakun.com/2025/12/01/EncryptedFileChannel.html
What makes a conference truly valuable? 💡
At #JavaZone 2025 it wasn’t just about tech — it was about people, ideas & inspiration that last.
From hands-on lessons with Maven to ethical UX debates and Quantum-ready Java apps 🚀 - @ixchelruiz shares her key takeaways in the latest Karakun #DeveloperHub article.
👉 http://dev.karakun.com/2025/11/03/java-zone.html
#Karakun #DeveloperCommunity #SoftwareEngineering #PostQuantum
👋 Trefft @madmas und @hdw2025 am 10. Juli an Stand Nr. 18 beim Java Forum Stuttgart!
💼 Wir stellen ein:
🔹 Projektingenieur:in
🔹 Full-Stack Software Engineers
Community-Umfrage am Stand:
Deine Meinung fliesst in einen Artikel auf unserem Developer Hub ein. Als Dankeschön gibt’s eine leckere Überraschung aus unserer 🇨🇭 Heimat!
Sag Hallo, diskutier mit - und nimm vielleicht mehr mit nach Hause als nur einen Sticker 😉
#JavaForumStuttgart #JFS2025 #DeveloperCommunity #Java #DeveloperHub
TDD 💡 + GenAI 🤖 = Dream Team?
In her latest article, Karakun expert Dr. Iryna Dohndorf explores how combining Test-Driven Development with Generative AI can boost code quality and accelerate delivery. 💥
📖 Read it on the #Karakun #DeveloperHub: 👉 https://dev.karakun.com/2025/04/02/tdd-genai.html
What do you think – can GenAI enhance your TDD flow? 💬
Testing and reviewing a code base are standard practices in software development. Nowadays, a wide range of testing practices, including AI-based methods, are available to developer teams. However, time and cost pressure may lead to undesired quality waste and to rising fear and weak communication within the development team. These well-known phenomena raise the need for improved software development workflows for responsible software delivery.
🚀 Java: Still the go-to choice for enterprise software! In her latest article, Karakun expert @ixchelruiz explores Java’s adaptability, stability, and new features that make it a strong contender for future-proof solutions. 🌍✨
Curious? Read more: 🔗 https://dev.karakun.com/2025/02/25/java-enterprise.html
🔍 Ready to build future-proof software? Let’s discuss how our experts can help! #EnterpriseSoftware #Innovation #DeveloperHub #Java #SoftwareEngineering
The relentless march of technology demands that we design enterprise solutions not just for today but for a future we can only partially imagine. Java, with its commitment to a regular release cadence and a focus on evolution, stands as a shining example of how to build software that can adapt, grow, and remain relevant for years to come. By embracing change, fostering innovation, and prioritizing sustainability, we can create systems that not only enhance human life but also contribute to the well-being of our planet.
Announcing Red Hat Developer Hub 1.4! 🎉
New features to boost your workflows:
🎄 Enhanced storage options
🎄 Improved config profiles
🎄 Backstage flavor ID
🎄 Third-party plugin support & more!
Upgrade now: https://docs.redhat.com/en/documentation/red_hat_developer_hub/1.4/html/release_notes/index
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