Java 16 to 21 New Features

After looking into the new features in Java 16 , let’s jump to the next LTS with Java 21 . Instead of covering every intermediate release one by one, this post focuses on the big features you get when moving from Java 16 to Java 21. JEP 409: Sealed Classes This feature entered as preview in Java 15/16 and is now fully supported since Java 17. A sealed class or interface can be extended or…