Spring I/O 2026 is just around the corner, and the energy is already electric. Next week, the global developer community descends on beautiful Barcelona for two days of deep dives, networking, and a first-hand look at the future of the Spring ecosystem.

The Spring team is arriving in force, ready to showcase the latest and greatest innovations. Whether you’re interested in the new features of Spring Boot 4, want to discover the power of Spring AI, or master observability, we have you covered.

Beyond the sessions, our team will be roaming the halls and hanging out at the booths. Stop us for a chat, a selfie, or to debate the best way to structure your latest project!

Here’s your schedule for the must-see sessions from our team:

April 14th

11:00 - 11:50

• Bootiful Spring Boot 4 - Josh Long
• Hybrid Modernization: Combining OpenRewrite's Precision with LLM Intelligence for Spring - Raquel Pau

12:00 - 12:50

• The Spring AI Ecosystem in 2026: From Foundations to Agents - Christian Tzolov, Dariusz Jędrzejczyk, Dr. Mark Pollack
• Domain-centric? Why Hexagonal- and Onion-Architecture are answers to the wrong question - Oliver Drotbohm

14:00 - 14:50

• Null-safe applications with Spring Boot 4 - Sébastien Deleuze
• Comparing Agentic AI Frameworks for Java - Timo Salm

15:00 - 15:50

• Core Resilience Features in Spring Framework 7 - Juergen Hoeller

16:30 - 17:20

• New in Spring Security 7: MFA, OAuth2 and more - Daniel Garnier-Moiroux

17:30 - 18:20

• Demystifying Observability for Spring Applications - Timo Salm

April 15th

9:00 - 9:50

• Bootiful Spring AI - Josh Long
• Spring for Rabbit Super Stream and SQL filters - Gregory Green

10:00 - 10:50

• The Joy of Queries - Mark Paluch
• Inside Spring Boot 4: Restructuring for the Future - Moritz Halbritter

11:30 - 12:20

• Concurrency and Streaming in the Age of Loom - Dariusz Jędrzejczyk, Rossen Stoyanchev
• From Completions to Goals: AI Agents with Spring AI - Dr. Mark Pollack

12:30 - 13:20

• Bootiful gRPC - Dr. Dave Syer, Josh Long
• Idiomatic Kotlin applications with Spring Boot 4 - Sébastien Deleuze
• REST is for Agents: Rediscovering Spring HATEOAS - Adib Saikali

14:30 - 15:20

• From Assistants to Agents: Self-Improving Agentic Systems with Spring AI - Christian Tzolov
• Demystifying the Agentic Loop: Building Safe, Server-Driven Agents with Spring - Adib Saikali

17:00 - 17:50

• I Can See Clearly Now: Observability of JVM & Spring Boot 2-3-4 apps - Jonatan Ivanov, Tommy Ludwig

Also keep an eye out for David Caron, Neven Cvetkovic, and Oded Shopen who will also be representing Spring at the event. Be sure to say hi!

We can't wait to see you all there, share knowledge, and celebrate the incredible Spring community. If you haven't yet, make sure to check out the full Spring I/O schedule.

Safe travels, and see you in Barcelona! 🇪🇸✨