From Spring Boot version 3.0 and above, Java 8 is no longer supported. If you wish to use Java 8, you must use Spring Boot version 2.x or earlier. Below is a compatibility list of Spring Boot versions and their supported Java versions:

Spring Boot Version Compatible Java Versions [1.x spring supports 6, 7, 8 version of java] [2.x spring supports 8, 9, 10, 11, 17 version of java ] [3.x spring supports 17 and above version of java ]