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https://issues.apache.org/jira/browse/FLINK-8451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16374114#comment-16374114
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ASF GitHub Bot commented on FLINK-8451:
---------------------------------------

Github user twalthr commented on the issue:

    https://github.com/apache/flink/pull/5567
  
    CC @tzulitai @aljoscha 


> CaseClassSerializer is not backwards compatible in 1.4
> ------------------------------------------------------
>
>                 Key: FLINK-8451
>                 URL: https://issues.apache.org/jira/browse/FLINK-8451
>             Project: Flink
>          Issue Type: Bug
>          Components: Type Serialization System
>    Affects Versions: 1.4.0, 1.5.0
>            Reporter: Timo Walther
>            Assignee: Timo Walther
>            Priority: Blocker
>             Fix For: 1.5.0, 1.4.2
>
>
> There seems to be problems with the updated Scala version and the 
> CaseClassSerializer that make it impossible to restore from a Flink 1.3 
> savepoint.
> http://mail-archives.apache.org/mod_mbox/flink-user/201801.mbox/%3CCACk7FThV5itjSj_1fG9oaWS86z8WTKWs7abHvok6FnHzq9XT-A%40mail.gmail.com%3E
> http://mail-archives.apache.org/mod_mbox/flink-user/201801.mbox/%3C7CABB00B-D52F-4878-B04F-201415CEB658%40mediamath.com%3E



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