We even had a new hairdresser service for speakers at @springio.net this year. @alina-yurenko.bsky.social @kehrlann.bsky.social

And just like that… Spring I/O 2026 is a wrap! I enjoyed every single moment last week, incredible talks, packed rooms, hallway conversations and a community that keeps proving why this conference is so special.

#wasmio26 opening is great as usual 🔥 Kudos to @sergialmar.com! 🙌

if you're coming to @wasm.io in Barcelona, or are in or around Spain and could come but can't buy a ticket: I've got two tickets!! This is the best #webassembly conf there is. The first two people from whom I receive a communication here or at hachyderm.io/@squillace will get one of those tickets.

It’s happening. Yesterday at the Spring AI workshop, a Python developer told me his company decided to build their AI platform with Java+Spring AI. He mentioned the transition was smooth. We'll see more and more AI apps on the JVM. This is your sign to explore Spring AI.

Thank you for having me one more year @talentarena.bsky.social , it was inspiring to see so many people interested in Spring AI, we covered a lot of ground: the main building blocks, workflow patterns, agentic patterns, agentic protocols, all possible with Spring AI!

I'll be delivering a "Building AI Agents with Spring AI" workshop tomorrow at Talent Arena, still time to register: talentarena.tech/agenda-2026/

Subagent Orchestration delegate tasks to focused subagents with isolated contexts and run in parallel #SpringAI TaskTool provides a portable, model-agnostic implementation inspired by Claude Code's subagents 📖 spring.io/blog/2026/01... @spring-ai.bsky.social #AI #Java #Agents

In the early days of @springio.net, I barely received any Spring Security related submissions, which I always missed. But this has completely changed in recent years. Security is not an afterthought anymore. What security concern didn't exist for you 5 years ago but does now?

Looking for a distraction prior to registering for @wasm.io? Or planning a trip to @cncf.io #kubeconeu? I blather on about #webassembly and why it's interesting to Microsoft (and, why it might be interesting to you) with the #F5 crew @ospencer.dev and Joel Moses www.youtube.com/watch?app=de...

Really loving the new featured speakers section on the Spring I/O 2026 website 💚 To be released soon.

Bringing Agent Skills to Java and #SpringAI 🚀 Modular, reusable capabilities for your AI agents -discovered at startup, loaded on demand. Portable across any LLM. Inspired by & compatible with Claude Code Skills. Part 1 of the Agentic Patterns series: spring.io/blog/2026/01... @spring-ai.bsky.social

Huge thanks to everyone who submitted a session for @springio.net 2026! So many great submissions, especially around AI, the selection is going to be extra tough this year. Wishing luck to everyone 🤞🍀

⏰ Tomorrow is the LAST DAY to submit your session for Spring I/O 2026. If you've been thinking about submitting, this is your sign, do it now! Don’t let the "I'll do it later" turn into "maybe next year".

🎉 New year, new goals, and last chance to submit your proposal! 🎤 Only 4 days left to submit your session ⏰ Kick off 2026 by sharing your ideas, lessons, and passion with the community.

Yesterday we welcomed Joel Almar Jiménez into our family ❤️ Both mom and baby are doing great!

My city's citizen portal is using the GitHub logo for pet services. Cats are required to send a PR to get registered.

Currently drafting the Spring Boot 4 / Java 25 migration plan for my current customer. How is your migration plan coming along? I've been testing with the different milestones and RCs, but now it's time to make it real!

Heard from a developer today: "I ran out of AI credits and can't continue the task." It's concerning to see devs can't ship code without AI. Will this become the norm for the next generation? We're told AI gives us a productivity boost, but maybe we're becoming too dependent.

This just arrived! @habuma.com

🎾 Nice combo for 2026! Spring I/O 2026 will take place the same week as the Barcelona Open Banc Sabadell, one of my favourite weeks of the year as a tennis lover. I never miss the tournament! If you join Spring I/O, you can also catch some world-class tennis right next door.

Spring Vault 4.0 goes GA spring.io/blog/2025/11...

Spring Framework 7.0.0 dropped last week, laying the foundation for the next generation of Spring apps. Coming up this week: Spring Security 7.0.0 Spring Integration 7.0.0 Spring GraphQL 2.0.0 Spring Kafka 4.0.0 Spring AMQP 4.0.0 (among others) And of course, Spring Boot 4!🔥

Just got my first @springio.net submission about COBOL. It ends with "COBOL career is a good career choice". Here’s your career advice for 2025.

Spring Boot 4.0.0-RC1 is here! Final GA is just weeks away (20th Nov), perfect time to try the latest bits. spring.io/blog/2025/10...

Nice demo from @fniephaus.com from the @graalvm.org team of a Spring Boot application summarizing various files with MarkItDown and Hugging Face Transformers popular Python libraries with GraalPy. github.com/fniephaus/gr...

Grab them while they last!

Spring Boot 4 with Brian Clozel and @snicoll.be #DevoxxBE

Spring & friends at #DevoxxBE

Full house in Rod Johnson session on building agents with Embabel. Repo: github.com/embabel/emba... #DevoxxBE

Spring Shell running on the browser thanks to WebAssembly, cool demos by @fniephaus.com Repo: github.com/graalvm/graa... #DevoxxBE

📣 The Spring I/O 2026 CFP is now OPEN! 📅 Deadline: 9 January 2026 📍Palau de Congressos de Catalunya, Barcelona 👉 Submit your proposal now and join us on stage: 2026.springio.net

30 years of Java. #1 language in overall enterprise organizational use #DevoxxBE

Hello Antwerp 👋 Hi #Devoxx

"Implementing Domain Driven Design with Spring" by @maciejwalkowiak.bsky.social just became @springio.net's most-viewed talk, overtaking "Clean Architecture with Spring" by Tom Hombergs! And the most-liked? "Spring Security Architecture Principles" by @garnier.wf.

Spring Boot 4 is moving to Jackson 3 (already in M3). 👉 Check out the Jackson 3 Migration Guide: github.com/FasterXML/ja... 👉 Also useful, the OpenRewrite recipe: docs.openrewrite.org/recipes/java... More insights coming soon in the official Spring blog post next week.

Tried the new Sonnet 4.5 with Junie, it consumes considerably more quota than GPT5 and the quality gains aren’t clear enough, not worth the change as of now.

The @springio.net 2026 website is coming along nicely and CFP will open soon. What topics would you love to see at #springio26? 👇

AI is reshaping the entry-level job market. Some junior roles might be disappearing but on the other hand, companies are desperate to add AI into their systems and workflows. And I believe that is a shortcut for new grads.

I’ve been setting up GitHub self-hosted runners lately to execute jobs from GH Actions. My current client has many security and compliance requirements, this allows having full control over the environment, using any hardware, lower costs and even accessing resources behind a VPN.

You can learn 100 JavaScript frameworks… or you can learn Java and Spring once, and it’ll pay you back for years. 💚

Java 25 / JDK 25: General Availability: mail.openjdk.org/pipermail/jd... Features: openjdk.org/projects/jdk... Downloads: jdk.java.net/25/ #Java25 #JDK25 #OpenJDK #Java

This week's instalment of the Road to GA series, "API Versioning in Spring", is now live spring.io/blog/2025/09... #SpringFramework #REST #Versioning

Still on Java 17 and planning to upgrade? ☕️ Skip 21 and go straight to 25. Java 25 provides memory efficiency gains and garbage collection improvements with zero code changes. Align it with your Spring Framework 7 / Spring Boot 4 upgrade. Strong recommendation by Juergen Hoeller.

Big week 👇 ☕️ Java 25 (Tue 16) 🍃 Spring Boot 4.0.0-M3 (Thu 18, last milestone!) The next gen of Spring Boot is here 🚀 When do you plan to start testing it? - M3 (this week) - RC1 (23rd October) - GA (20th November)

"Hello, AI" is the new "Hello, World"

Who else remembers going to the store to buy Spring Framework 1.0 on floppy disks with a 500-page manual? 😅 Ok, not really for Spring…But Spring Framework 7.0.0-M9 (last milestone) is out 🎉 no store trip needed, just update your dependencies and give it a spin.

The Spring Debugger from @intellijidea.com autodetects your datasources and registers them into the Database tool window. This is particularly helpful when testing with Testcontainers. It gives you instant database inspection, no setup. Super handy. 🧐

The auditorium for the next edition of Spring I/O looks dope!! Can't wait!

Keeping code quality is easy when starting a new project but as the codebase grows, keeping the same quality becomes a challenge. Spring has been around for 20+ years and its code quality is still excellent. 👏 Pro tip: read Spring classes, not just use them. There’s a lot to learn!