Spring Boot 3

Spring Boot 3 is the major release of the opinionated Spring application framework, built on Spring Framework 6, requiring Java 17 baseline and Jakarta EE 10. It delivers native image support via GraalVM, improved observability with Micrometer tracing, and a modernized auto-configuration system.

• URL: https://spring.io/projects/spring-boot
• Type: Open Source
• Tags: Enterprise, Framework, Java, Microservices, REST API, Spring Boot

APIs

Spring Boot Actuator API

Production-ready features for monitoring and managing Spring Boot 3 applications. Provides health checks, Micrometer metrics, environment inspection, logger configuration, thread dumps, and more.

• Documentation
• API Documentation
• GitHub Repository

Spring Boot Core Framework

Core Spring Boot 3 auto-configuration, embedded server, and application bootstrap support.

• Documentation
• Getting Started

Spring Web MVC API

Web MVC framework for building web applications and RESTful services with Spring Boot 3.

• Documentation

Spring Data REST API

Automatically expose Spring Data repositories as hypermedia-driven REST resources.

• Documentation

Spring Security API

Security framework for authentication and authorization in Spring Boot 3 applications.

• Documentation

OpenAPI Specifications

API	File
Spring Boot 3 Actuator API	openapi/spring-boot-3-actuator-openapi.yml

Spectral Rules

Ruleset	File
Spring Boot 3 Rules	rules/spring-boot-3-rules.yml

Capabilities

Shared Definitions

API	File
Spring Boot 3 Actuator API	capabilities/shared/spring-boot-3-actuator.yaml

Workflow Capabilities

Workflow	Description	File
Application Observability	Health, metrics, logging, and diagnostics	capabilities/application-observability.yaml

JSON Schemas

Schema	File
Health Response	json-schema/spring-boot-3-health-schema.json
Metric Detail	json-schema/spring-boot-3-metrics-schema.json

JSON Structures

Structure	File
Actuator Domain Model	json-structure/spring-boot-3-actuator-structure.json

JSON-LD Contexts

Context	File
Spring Boot 3	json-ld/spring-boot-3-context.jsonld

Examples

Example	File
Get Application Health	examples/spring-boot-3-get-health-example.json
Get Metric Value	examples/spring-boot-3-get-metric-example.json
Set Logger Level	examples/spring-boot-3-set-logger-level-example.json

Vocabulary

Vocabulary	File
Spring Boot 3 Domain Terms	vocabulary/spring-boot-3-vocabulary.yml

Common Properties

• Getting Started
• GitHub Repository
• Release Notes
• Migration Guide
• Community
• Blog

Maintainers

• VMware Tanzu (Broadcom) — spring-team@vmware.com