Hi Spring fans! Welcome to another installment of This Week in Spring! I'm writing this from the oh-so-delightful (and delicious!) city of New Delhi, India. It's been a real privilege to come and visit so many amazing people. Last night my friend DaShaun and I presented here at the local Delhi JUG, too. Amazing. Tonight we're off to magnificent Mumbai!

It's been an insane week! First, you might remember that way back on May 11th, Spring manager Michael Minella posted that the normally scheduled May release train would be delayed, and on June 1st he detailed why: AI-driven CVEs. LOTS of CVEs. Read the posts for more. Suffice it to say, we doubled down and fixed the CVEs, and the new release train is finally here!

First things first: go upgrade to Spring Boot 4.1, now! Seriously, thank me later!

Now, on to the details!

• Spring AI 2.0 is here!
• I love this post on using Spring AI's support for semantic caching with any VectorStore by the legendary Craig Walls
• I love this! Tool calling in Spring AI 2.0 in a composable, agentic architecture
• Last week's installment of A Bootiful Podcast was awesome: I talked to the legendary Rob Winch, lead of Spring Security, and had him answer questions. SO good. Do not miss this discussion!
• Spring Tools 5.2.0 is here. You want a first-class experience for building Java apps in Visual Studio Code and Eclipse? Do not miss this update to Spring Tools 5.2.0!
• Spring AI 1.0.9, 1.1.8 are available now
• Spring Cloud 2025.0.3 (aka Northfields) has been released
• Spring Cloud 2025.1.2 (aka Oakwood) has been released
• Spring Shell 4.0.3 and 3.4.3 are out!
• Spring Modulith 2.1 GA, 2.0.8, and 1.4.12 are released
• Spring Boot 3.5.15 available now!
• Spring Batch 6.0.4 and 5.2.7 available now
• Spring Boot 4.1.0 is available now!
• Spring for GraphQL 1.4.6, and 2.0.4
• Spring gRPC 1.1.0 is available now!
• Spring Vault 4.1 Generally Available
• Spring Vault 4.0.3 and 3.2.1 available now
• Spring Boot 4.0.7 available now
• Spring for Apache Pulsar 1.2.18 and 2.0.6 are now available
• Spring Integration 7.1.0 is now available
• Spring Web Flow 3.0.2 and 4.0.1 Available Now
• Spring Web Services 5.0.2 and 4.1.4 are available now
• Spring Authorization Server 2026.06 is released
• Spring Data 2026.0.0 generally available
• Spring Data 2025.1.6 and 2025.0.12 released
• Spring REST Docs 3.06 is available now!
• Spring REST Docs 4.0.1 is available now
• Spring Security 2026.06 Releases - Contains CVE fixes
• Spring Session 2026.06 releases
• Spring AMQP 4.1.0 available now
• Spring for Apache Kafka 4.1.0, 4.0.6, and 3.3.16 available now
• Spring LDAP 2026.06 released
• Spring Retry 2.0.13 available now.