In this post, I’d like to walk you through the process of upgrading a Spring Boot
1.x app to Spring Boot 2.
If you are using Maven and the
spring-boot-starter-parent, you need to be aware that several plugins are going to be updated as part of the upgrade. If you’re not using the parent, it is worthwhile to inspect your build and upgrade the plugins that you are using. Spring Initializr is built with Maven so the easiest way is to scan
spring-boot-dependencies and upgrade the plugins you are using if necessary.