The latest refresh is now available on our Downloads page. This refresh contains the January 2019 Oracle critical patch update.

Fix pack 30 also includes the following updates:

  • An updated version of the Eclipse OpenJ9 VM, including the following changes:
    • Support for pause-less garbage collection on 64-bit Windows operating systems.
    • Idle tuning (using the -XX:[+|-]IdleTuningGcOnIdle and -XX:[+|-]IdleTuningCompactOnIdle options) is enabled by default when the VM runs in a docker container.
    • The default shared classes cache directory permissions for non-Windows operating systems are now stricter.
  • The anon and NULL security algorithms are now disabled by default.
  • IBM fixes to the code base.

You can read more about these changes in the user documentation:

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