On behalf of the community, I am pleased to announce that the General Availability (RELEASE) of the Spring Cloud 2025.1.1 Release Train is available today. The release can be found in Maven Central. You can check out the 2025.1.1 release notes for more information.

Notable Changes in the 2025.1.1 Release Train

Spring Cloud 2025.0.0 is incompatible with Spring Boot 4.0.1 and later 4.0.x releases due to changes in Spring Boot. This Spring Cloud release introduces compatibility with Spring Boot 4.0.1 and later 4.0.x release for the 2025.1.x Spring Cloud release train.

Spring Cloud Kubernetes

• New leader election implementations for the Kubernetes Java Client (#2107) and Fabric8 Client (#2108)
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In this blog, we show how using Spring AI, we can integrate with Anthropic's Native Skills API for Cloud-Based Document Generation and Custom Skills.

Spring AI adds support for Anthropic's Agent Skills — modular capabilities that let Claude generate actual files rather than text descriptions. With Skills enabled, Claude produces real Excel spreadsheets, PowerPoint presentations, Word documents, and PDFs that you can download and use directly.

This post covers how Spring AI integrates with Skills, including both pre-built Skills and Custom Skills for organization-specific document generation.

…

Instead of one generalist agent doing everything, delegate to specialized agents. This keeps context windows focused—preventing the clutter that degrades performance.

Task tool, part of the spring-ai-agent-utils toolkit, is a portable, model-agnostic Spring AI implementation inspired by Claude Code's subagents. It enables hierarchical agent architectures where specialized subagents handle focused tasks in dedicated context windows, returning only essential results to the parent. Beyond Claude's markdown-based format, the architecture is extensible—supporting A2A and other agentic protocols…

Hi, Spring fans! Welcome to another installment of This Week in Spring! As I write this, I cannot believe we're nearly at the end of the month! Time sure flies.

• Spring AI 2.0.0-M2 is available now
• Spring Modulith 2.1 M1, 2.0.2, and 1.4.7 released
• In last week's installment of A Bootiful Podcast, I talked to JetBrains legend Dmitry Jemerov
• Spring Boot 3.5.10 is available now
• Spring Boot 4.0.2 is available now
• Spring Boot 4.1.0-M1 is available now
• Spring Batch 6.0.2 available now
• Spring Integration 7.1.0-M1 is available now
• Spring AI Agentic Patterns (pt. 3): Why Your AI Agent Forgets Tasks (and How to Fix It)
• Have you heard of WiseMapping? It's a fully open-source mind-mapping software suite with a web and desktop client and a backend written in Spring Boot. Neat…

On behalf of the Spring AI team, I'm happy to announce that Spring AI 2.0.0-M2 is now available from Maven Central.

Release Summary

This release includes 94 changes: 36 improvements, 16 bug fixes, 38 documentation updates, and 4 dependency upgrades.

Thanks to all contributors.

Null Safety

Spring AI 2.0 will join the Spring Portfolio effort to provide a null-safe API, as documented in this original blog post. What this means is that the whole Spring AI codebase needs to be reviewed and converted to JSpecify, which is no small endeavor!

The benefits are a better documented API but also one we can trust because thanks to JSpecify and NullAway, all of this is now enforced at compile time. Moreover, for Kotlin users, this translates to true nullable…

On behalf of the communit I am happy to announce the availablity of Spring Modulith 2.1 M1, 2.0.2, and 1.4.7. The bug fix releases primarily ship the usual depenency upgrades. The first milestone of 2.1 upgrades to Boot 4.1's first milestone and includes a few minor additions accumulated after the 2.0 GA release.

• Allow resetting the shift in TimeMachine #1490
• Allow skipping all tests if no changes are detected #1438

Find more details about the releases in the full changelog for 2.1 M1, 2.0.2, and 1.4.7.

Hi, Spring and IntelliJ IDEA fans! This week we celebrate 25 years of Jetbrains IntelliJ IDEA, and who better to talk to us about its evolution than Dmitry Jemerov, whose been a contributor and developer for the project since 2003!

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 3.5.10 has been released and is now available from Maven Central.

This release includes 29 bug fixes, documentation improvements, and dependency upgrades. Thanks to all those who have contributed with issue reports and pull requests.

How can you help?

If you're interested in helping out, check out the "ideal for contribution" tag in the issue repository. If you have general questions, please ask on stackoverflow.com using the spring-boot tag.

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