Github user cloud-fan commented on the issue: https://github.com/apache/spark/pull/22977 I think one major issue is, there is no document about how to update mima with new releases. Anyone knows the detailed process? Seems we need to update `MimaExcludes.scala` with something like `lazy val v30excludes = v24excludes ++ Seq` when cut the new branch, and update `MimaBuild.scala` when the new release is published. And there are 2 remaining issues. 1. the data source v2 changes broke a lot of mima rules, while I expect interfaces marked as "Envolving" should not be tracked by mima. 2. mllib broke a lot of mima rules, seems caused by https://github.com/apache/spark/pull/22921 . @srowen can you take a look? Also cc @JoshRosen @gatorsmile @shaneknapp @vanzin @holdenk @felixcheung
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