OpenJDK will need to be updated across all versions of RHEL in January for the next quarterly security update. We should prepare for this by building and testing the upstream build promotions of OpenJDK which we release throughout November & December. This will reduce the amount of work that needs to be done during the critical period in early January, when the security patches are added.

For 11u ELS, there is only one build per major version, so effectively only y-stream and no z-stream.