Before migrating your application to the latest JDK release, you must understand what the updates and changes are between it and the previous JDK release. If you are migrating from JDK 8, you should also be familiar with the differences between JDK 8 and later releases that are described in Migrating from JDK 8 to Later JDK Releases.

See the following sections to learn about some of the significant changes in JDK releases.