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https://issues.apache.org/jira/browse/FLINK-35464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17849705#comment-17849705
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Leonard Xu commented on FLINK-35464:
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Thanks [~xiqian_yu] for the investigation, and I improve the issue priority to
blocker
> Flink CDC 3.1 breaks operator state compatiblity
> ------------------------------------------------
>
> Key: FLINK-35464
> URL: https://issues.apache.org/jira/browse/FLINK-35464
> Project: Flink
> Issue Type: Bug
> Components: Flink CDC
> Affects Versions: cdc-3.1.0
> Reporter: yux
> Assignee: yux
> Priority: Blocker
> Fix For: cdc-3.1.1
>
>
> Flink CDC 3.1 changed how SchemaRegistry [de]serializes state data, which
> causes any checkpoint states saved with earlier version could not be restored
> in version 3.1.0.
> This could be resolved by adding serialization versioning control logic.
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