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    • Introduced In Version:
      11

      Description

      The Release Notes describe important changes, enhancements, removed APIs and features, deprecated APIs and features, and other information about JDK 11 and Java SE 11. In some cases, the descriptions provide links to additional detailed information about an issue or a change. 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. This page does not duplicate the descriptions provided by the [Java SE 11 (18.9) ( JSR 384)](http://cr.openjdk.java.net/~iris/se/11/latestSpec/) Platform Specification, which provides informative background for all specification changes and might also include the identification of removed or deprecated APIs and features not described here. The Java SE 11 (18.9) ( JSR 384) specification provides links to:

      - **Annex 1:** The complete Java SE 11 API Specification.

      - **Annex 2:** An annotated API specification showing the exact differences relative to Java SE 10. Informative background for these changes may be found in the list of approved Change Specification Requests for this release.

      - **Annex 3:** Java SE 11 Editions of [The Java Language Specification](http://cr.openjdk.java.net/~iris/se/11/latestSpec/java-se-11-jls-draft-diffs.pdf) and [The Java Virtual Machine Specification](http://cr.openjdk.java.net/~iris/se/11/latestSpec/java-se-11-jvms-draft-diffs.pdf). The Java SE 11 Editions contain all corrections and clarifications made since the Java SE 10 Editions, as well as additions for new features.

      You should be aware of the content in that document as well as the items described in this page.

      The descriptions on this Release Note page might also identify potential compatibility issues that you could encounter when migrating to JDK 11. The [Kinds of Compatibility](https://wiki.openjdk.java.net/display/csr/Kinds+of+Compatibility) page on the OpenJDK wiki identifies three types of potential compatibility issues for Java programs used in these descriptions:

      - **Source:** Source compatibility concerns translating Java source code into class files.

      - **Binary:** Binary compatibility is defined in [The Java Language Specification](http://cr.openjdk.java.net/~iris/se/11/latestSpec/java-se-11-jls-draft-diffs.pdf) as preserving the ability to link without error.

      - **Behavioral:** Behavioral compatibility includes the semantics of the code that is executed at runtime.

      See [CSRs Approved for JDK 11](https://bugs.openjdk.java.net/issues/?jql=project%20%3D%20JDK%20AND%20issuetype%20%3D%20CSR%20AND%20status%20%3D%20Closed%20AND%20resolution%20%3D%20Approved%20AND%20fixVersion%20%3D%20%2211%22) for the list of CSRs closed in JDK 11 and the [Compatibility & Specification Review (CSR)](https://wiki.openjdk.java.net/display/csr/Main) page on the OpenJDK wiki for general information about compatibility.

      ---
      # Important Changes and Information

      The following are some important changes in and information about this release. In some cases, additional details about the changes described below are provided in these Release Notes.

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            • Assignee:
              cwayne Clifford Wayne
              Reporter:
              cwayne Clifford Wayne
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              • Created:
                Updated:
                Resolved: