upgrade_guide.adoc

Upgrade Guide

Table of Contents

• Gradle
• Java
• Spring Boot

Changes on feature branch feature/upgrade-versions.

Gradle

Existing Gradle version is: 7.4.2 (from gradle/wrapper/gradle-wrapper.properties)

Latest Gradle version is 8.x.

See Upgrading your build from Gradle 7.x to 8.0 for upgrade advice.

Try to upgrade to latest Gradle version before upgrading the Java version because the latest version of Gradle might not run with an older Java version.

Run gradle wrapper --gradle-version 8.11.1

Java

Target LTS version is: 21

Update build.gradle.kts:

From:

java {
   sourceCompatibility = JavaVersion.VERSION_11
   targetCompatibility = JavaVersion.VERSION_11
}

To:

java {
   sourceCompatibility = JavaVersion.VERSION_21
   targetCompatibility = JavaVersion.VERSION_21
}

Spring Boot

See the following article: Spring Boot 3.0 Migration Guide

Existing Spring Boot version is: id("org.springframework.boot") version "2.6.3" (from build.gradle.kts)

Dependabot suggests to update org.springframework.boot:spring-boot-starter-web from 2.7.0 to 3.4.0. See PR Bump org.springframework.boot:spring-boot-starter-web from 2.7.0 to 3.4.0 in the gradle group across 1 directory.