What is Spring Boot 3.0?

Spring Boot 3.0 is a major release of the popular Spring Boot framework, part of the broader Spring Framework ecosystem. It simplifies the development of stand-alone, production-ready Spring-based applications. Key features of Spring Boot include auto-configuration (automatically configuring Spring components based on dependencies), embedded servers (Tomcat, Jetty, or Undertow), and starter dependencies (pre-configured dependency sets for common application needs). Spring Boot 3.0 requires Java 17 or higher and supports Jakarta EE 9, marking a significant shift in the Spring ecosystem. It is commonly used for building microservices, web applications, REST APIs, and batch processing applications, enabling developers to quickly bootstrap and deploy applications with minimal configuration.