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https://issues.apache.org/jira/browse/CASSANDRA-21174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sam Tunnicliffe updated CASSANDRA-21174:
----------------------------------------
          Fix Version/s: 6.0
                             (was: 6.x)
    Source Control Link: 
https://github.com/apache/cassandra/commit/a7695a62200c3085fea634b9fdc8d393a057458e
             Resolution: Fixed
                 Status: Resolved  (was: Ready to Commit)

> Forbid nodes upgrading to a version which cannot read existing log entries
> --------------------------------------------------------------------------
>
>                 Key: CASSANDRA-21174
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-21174
>             Project: Apache Cassandra
>          Issue Type: Improvement
>          Components: Transactional Cluster Metadata
>            Reporter: Aparna Naik
>            Assignee: Aparna Naik
>            Priority: Normal
>             Fix For: 6.0
>
>         Attachments: ci_summary-1.html, ci_summary.html, 
> result_details.tar-1.gz, result_details.tar.gz
>
>          Time Spent: 2h
>  Remaining Estimate: 0h
>
> It should not be possible for a node to join a cluster (either via bootstrap 
> or by replacing an existing member), unless the minimum metadata 
> serialization it supports is at least equal to the cluster's 
> minCommonSerializationVersion. This is to prevent nodes being unable to read 
> log entries or metadata snapshots when joining the cluster.



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