Spring Boot 3.3.0 available now

On behalf of the Spring Boot team and everyone that has contributed, I am pleased to announce that Spring Boot 3.3.0 has been released and is available from Maven Central.

This release adds a significant number of new features and improvements. For full upgrade instructions and new and noteworthy features please see the release notes.

What’s new in 3.3

The highlights of the 3.3 release include:

  • CDS Support for improved startup times
  • Observability improvements, for example support for Micrometer’s @SpanTag, a process InfoContributor and Prometheus 1.x support
  • Spring Security improvements, for example an auto-configuration for JwtAuthenticationConverter
  • Service connection support for Apache ActiveMQ Artemis and LDAP
  • Docker Compose support for Bitnami Container Images
  • Virtual thread support for websockets
  • Support for Base64 resources in property (and YAML) files
  • Support for SBOMs with the new SBOM actuator endpoint
  • A completely revamped documentation based on Antora
  • SSL SNI support for embedded web servers

Dependency upgrades

Spring Boot 3.3 moves to new versions of several Spring projects and we’ve also upgraded to the latest stable releases of other third-party libraries wherever possible. Please see the release notes for details.

Other changes

There are many other changes and improvements that are documented in the release notes. You can also find a list of deprecated classes and methods that we plan to remove in the future.

Thank you

We want to take this opportunity to again thank all our users and contributors.

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 at stackoverflow.com using the spring-boot tag or chat with the community on Gitter.

Project Page | GitHub | Issues | Documentation | Stack Overflow | Gitter

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