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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, Internationalization, Task Execution and Scheduling, 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, Apache Kafka, Apache Pulsar, 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.  | 
| GraalVM Native Image Support | 
 Create a native executable from your application using GraalVM  | 
| 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.  |