The following notes describe some of the enhancements in Java SE 11 and JDK 11. The descriptions might include links to additional documentation that describes the enhancement in greater detail. The APIs described here are those that are provided with the Oracle JDK. It includes a complete implementation of the Java SE 11 Platform and additional Java APIs to support developing, debugging, and monitoring Java applications. Another source of information about important enhancements and new features in Java SE 11 and JDK 11 is the [Java SE 11 (18.9) ( JSR 384)](http://cr.openjdk.java.net/~iris/se/11/latestSpec/) Platform Specification, which documents the changes to the specification made between Java SE 10 and Java SE 11. This document includes descriptions of those new features and enhancements that are also changes to the specification. The descriptions below might also identify potential compatibility issues that you could encounter when migrating to JDK 11.