Spring AI Agentic Patterns (Part 4): Subagent Orchestration
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…
This Week in Spring - January 27th, 2026
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…
Spring AI 2.0.0-M2 Available Now
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…
Spring Modulith 2.1 M1, 2.0.2, and 1.4.7 released
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.
A Bootiful Podcast: Jetbrains legend Dmitry Jemerov
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!
Spring Boot 3.5.10 available now
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.
Project Page | GitHub | Issues | Documentation | Stack…
Spring Boot 4.0.2 available now
On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 4.0.2 has been released and is now available from Maven Central.
This release includes 62 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.
Project Page | GitHub | Issues | Documentation | Stack…
Spring Boot 4.1.0-M1 available now
On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 4.1.0-M1 has been released and is now available from Maven Central.
This release includes 111 enhancements, documentation improvements, dependency upgrades, and bug fixes. Notable new features include:
- Improve support for observation and metric conventions
- Configuration properties for configuring Jackon's read and write features
- New
@AutoConfigureWebServerannotation for sliced tests that require a web server - Reinstated support for Spock as it now supports Groovy 5
- Support for jOOQ 3.20 (requires Java 21 or later) …
Spring Batch 6.0.2 available now
On behalf of the team and all contributors, I am pleased to announce that Spring Batch 6.0.2 is now available from Maven Central.
This release comes with a number of improvements, bug fixes and documentation updates. The release notes can be found on GitHub here. This version will be available through Spring Boot 4.0.2.