This Week in Spring - January 27th, 2026

Engineering | Josh Long | January 27, 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 Available Now

Releases | Mark Pollack | January 23, 2026 | ...

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

Releases | Oliver Drotbohm | January 23, 2026 | ...

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.

Spring Boot 4.0.2 available now

Releases | Andy Wilkinson | January 22, 2026 | ...

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

Releases | Andy Wilkinson | January 22, 2026 | ...

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 @AutoConfigureWebServer annotation 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 Boot 3.5.10 available now

Releases | Moritz Halbritter | January 22, 2026 | ...

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 Integration 7.1.0-M1 Available

Releases | Artem Bilan | January 21, 2026 | ...

On behalf of the team and everyone who contributed, I am pleased to announce the start of the new Spring Integration 7.1 minor version. The first milestone has made it to Maven Central.

In addition, the 7.0.2 and 6.5.6 versions with bug fixes and dependency upgrades have been released.

Some notable changes in 7.1.0-M1:

  • The new spring-integration-cloudevents module has been added to support CloudEvents transformations;
  • The new spring-integration-grpc module has been added to communicate with gRPC protocol;
  • Previously deprecated API has been removed;
  • Resolved deprecations from Spring AMQP in spring-integration-amqp module.

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