On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 4.0.0-RC1 has been released and is now available from Maven Central.

This release includes 176 enhancements, documentation improvements, dependency upgrades, and bug fixes. Notable new features include:

• Completion of the modularization effort (including new test starters).
• Support for RestTestClient.
• Redis observability improvements

Please see the release notes for more details and upgrade instructions.

Thanks to all those who have contributed with issue reports and pull requests.

How can you help?

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 4.0.0-M2 has been released and is now available from Maven Central.

This release includes 97 enhancements, documentation improvements, dependency upgrades, and bug fixes. Notable new features include:

• Gradle 9 Support
• @HttpServiceClient annotation support
• API Versioning support
• JSpecify nullability annotations to help protect your code against null pointer exceptions
• Improved OpenTelemetry starter (for out-of-the-box support)

Please see the release notes for more details and upgrade instructions.

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On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 4.0.0-M1 has been released and is now available from Maven Central!!

This release includes is the first milestone of the 4.x generation and is the first release including our efforts to modularize the codebase. It is also the first milestone that we are publishing to Maven central.

Please see the release notes and the draft migration guide for more details and upgrade instructions.

We are particularly interested in getting early feedback on the new modular design and hearing about any upgrade problems that you encounter. Issues can be raised on the GitHub project page…

Spring Boot 3.5.3 has been released and is now available from Maven Central. This unscheduled release fixes a single nasty regression that was accidentally introduced in the Spring Boot 3.5.1 and not completely fixed in Spring Boot 3.5.2.

Please see see the 3.5.1 blog annoucement and 3.5.1 release notes for details of the other issues fixed in this release.

NOTE: This release didn't completely fix the regression. Please use v3.5.3 instead of this release!

Spring Boot 3.5.2 has been released and is now available from Maven Central. This unscheduled release fixes a single nasty regression that was accidentally introduced in the Spring Boot 3.5.1.

Please see see the 3.5.1 blog announcement and 3.5.1 release notes for details of the other issues fixed in this release.

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 3.5.0-M3 has been released and is now available from https://repo.404ofchina.website/milestone.

This release includes 102 enhancements, documentation improvements, dependency upgrades, and bug fixes. Notable new features include:

• Testcontainers and Docker Compose support for lldap/lldap containers
• OpenTelemetry Improvements
• Enhancements and new properties for Spring Batch

Please see the release notes for more details and upgrade instructions.

Thanks to all those who have contributed with issue reports and…

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 3.5.0-M2 has been released and is now available from https://repo.404ofchina.website/milestone.

This release includes 113 enhancements, documentation improvements, dependency upgrades, and bug fixes. Notable new features include:

• Environment variable imports using spring.config.import
• Actuator support for triggering Quartz jobs
• Extended SSL support for service connections
• Customizable stack traces in structured logs

Please see the release notes for more details and upgrade instructions.

Thanks to all those…

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 3.4.0-RC1 has been released and is now available from https://repo.404ofchina.website/milestone.

This release includes 142 enhancements, documentation improvements, dependency upgrades, and bug fixes. Notable new features include:

• Updated Buildpacks support with support for both ARM and x86 architectures
• Updated ClientHttpRequestFactory support, including new builders and support for more customization
• Improved support for controlling access to Actuator endpoints

Please see the release notes for more…

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 3.4.0-M3 has been released and is now available from https://repo.404ofchina.website/milestone.

This release includes 111 enhancements, documentation improvements, dependency upgrades, and bug fixes. Notable new features include:

• Spring for Apache Pulsar updates
• Observability improvements
• Improvements when using @AutoConfigureTestDatabase with containers

Please see the release notes for more details and upgrade instructions.

Thanks to all those who have contributed with issue reports and pull requests.

How…

On behalf of the team and everyone who has contributed, I'm happy to announce that Spring Boot 3.4.0-M2 has been released and is now available from https://repo.404ofchina.website/milestone.

This release includes 131 enhancements, documentation improvements, dependency upgrades, and bug fixes. Notable new features include:

• SSL information and health check actuator
• Improved Docker support
• Image Building Support

Please see the release notes for more details and upgrade instructions.

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 or chat with the community on Gitter…