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Q: How should I get CSR review for multiple release trains?
A: Say you want to get an interface change into JDK N and later decide the change is also desirable and appropriate for the JDK (N-1) update release and that update release is using the CSR process. First a CSR should be created from the main bug targeted at JDK N. Afterward, if a backport of the main bug covering JDK (N-1) does not already exist, a backport of the main bug covering JDK (N-1) should be created. Then, a CSR can be created from that backport. The CSR for the backport should explicitly state how the interface face change for the backport relates to the interface change for the main release: either change the interface change is the same or, if it differs, what the difference is.
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