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The reference documentation consists of the following sections:
| Legal | Legal information. | 
| Getting Help | Resources for getting help. | 
| Documentation Overview | About the Documentation, First Steps, and more. | 
| Getting Started | Introducing Spring Boot, System Requirements, Servlet Containers, Installing Spring Boot, and Developing Your First Spring Boot Application | 
| Upgrading Spring Boot Applications | Upgrading from 1.x, Upgrading to a new feature release, and Upgrading the Spring Boot CLI. | 
| Using Spring Boot | Build Systems, Structuring Your Code, Configuration, Spring Beans and Dependency Injection, DevTools, and more. | 
| Core Features | Profiles, Logging, Security, Caching, Spring Integration, Testing, and more. | 
| Web | Servlet Web, Reactive Web, Embedded Container Support, Graceful Shutdown, and more. | 
| Data | SQL and NOSQL data access. | 
| IO | Caching, Quartz Scheduler, REST clients, Sending email, Spring Web Services, and more. | 
| Messaging | JMS, AMQP, RSocket, WebSocket, and Spring Integration. | 
| Container Images | Efficient container images and Building container images with Dockerfiles and Cloud Native Buildpacks. | 
| Production-ready Features | Monitoring, Metrics, Auditing, and more. | 
| Deploying Spring Boot Applications | Deploying to the Cloud, and Installing as a Unix application. | 
| Spring Boot CLI | Installing the CLI, Using the CLI, Configuring the CLI, and more. | 
| Build Tool Plugins | Maven Plugin, Gradle Plugin, Antlib, and more. | 
| “How-to” Guides | Application Development, Configuration, Embedded Servers, Data Access, and many more. | 
The reference documentation has the following appendices:
| Application Properties | Common application properties that you can use to configure your application. | 
| Configuration Metadata | Metadata that you can use to describe configuration properties. | 
| Auto-configuration Classes | Auto-configuration classes provided by Spring Boot. | 
| Test Auto-configuration Annotations | Test auto-configuration annotations that you can use to test slices of your application. | 
| Executable Jars | Spring Boot’s executable jars, their launchers, and their format. | 
| Dependency Versions | Details of the dependencies that are managed by Spring Boot. |