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- Build system improvements, particularly for stability and reproducibility
- Changes necessary to make 11u work on new operating systems and hardware
In some cases, for example when there is a gross performance deficit that can be fixed in a safe way, we might make an exception. However, such cases will be very uncommonHowever, if there is an enhancement that provides substantial benefit to OpenJDK 11u users and it is of low risk, we will consider it. Please ask on the jdk-updates-dev@openjdk.java.net mailing list if you are in any doubt about whether your proposed backport might qualify.
If the backport requires more than just cosmetic changes (file location changes, copyright header updates) to apply to the 11u repository, it should first be submitted for review.
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