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January 2023 Updates

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@brunoborges brunoborges released this 26 Jan 00:25
· 18 commits to main since this release
january-2023-update
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Learn about vigilant mode.

The January 2023 updates of Microsoft Build of OpenJDK are now live at microsoft.com/openjdk.

This release also includes new container images.

OpenJDK 17.0.6 (download)

Enhancements

  • Includes an experimental feature to improve the performance of Escape Analysis by increasing the number of opportunities for Scalar Replacement. To enable this feature, developers must use the following JVM flags:

    -XX:+UnlockExperimentalVMOptions -XX:+ReduceAllocationMerges

Known issues

  • Binaries do not have Default CDS (JEP 341) archives. Run java -Xshare:dump to produce them after installation.

OpenJDK 11.0.18 (download)

OpenJDK 11.0.18

Enhancements

  • Includes an experimental feature to improve the performance of Escape Analysis by increasing the number of opportunities for Scalar Replacement. To enable this feature, developers must use the following JVM flags:

    -XX:+UnlockExperimentalVMOptions -XX:+ReduceAllocationMerges

  • Backports of the following enhancements and bug fixes:

    • JDK-8250902 Implement MD5 Intrinsics on x86 - Java Bug System
    • JFR
      • JDK-8226897 Provide object age with JFR OldObjectSample event - Java Bug System
      • JDK-8232594 Make the output of the JFR command duration more user friendly - Java Bug System
      • JDK-8216041 [Event Request] - Deoptimization - Java Bug System

Known issues

  • Binaries do not have Default CDS (JEP 341) archives. Run java -Xshare:dump to produce them after installation.
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