Spring boot 3 is supported by Spring framework.

Spring Boot makes it easy to create stand-alone, production-grade Spring based Applications that you can “just run”.

We take an opinionated view of the Spring platform and third-party libraries so you can get started with minimum fuss. Most Spring Boot applications need minimal Spring configuration.

If you’re looking for information about a specific version, or instructions about how to upgrade from an earlier release, check out the project release notes section on our wiki.

Features

• Create stand-alone Spring applications
• Embed Tomcat, Jetty or Undertow directly (no need to deploy WAR files)
• Provide opinionated ‘starter’ dependencies to simplify your build configuration
• Automatically configure Spring and 3rd party libraries whenever possible
• Provide production-ready features such as metrics, health checks, and externalized configuration
• Absolutely no code generation and no requirement for XML configuration

Getting Started

• Super quick — try the Quickstart Guide.
• More general — try Building an Application with Spring Boot
• More specific — try Building a RESTful Web Service.
• Or search through all our guides on the Guides homepage.

Talks and videos

• Mind the Gap: Jumping from Spring Boot 2.x to 3.x
• Demystifying Spring Internals
• Ahead Of Time and Native in Spring Boot 3.0
• Improve Your Developer Experience with Spring Boot Dev Services

You can also join the Spring Boot community on Gitter!