Github user je-ik commented on the issue: https://github.com/apache/flink/pull/5185 @aljoscha I (partly) reworked this PR as you suggest. There are still some unresolved questions though: 1) I'm not 100% sure how to cleanly support the migration between list state savepoints, would you have any pointers on how should I address this? 2) I didn't test the new version on actual flink job yet, it just passes tests I think there will be some more modifications needed, so I will test this on real data when there is agreement on the actual implementation. Thanks in advance for any comments!
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