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https://issues.apache.org/jira/browse/CASSANDRA-5524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13688062#comment-13688062
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Nick Bailey commented on CASSANDRA-5524:
----------------------------------------

Also, I didn't include it in this patch but I'd say we should mention this tool 
in the general upgrading steps in NEWS.TXT or somewhere similar. So people know 
they need to upgrade snapshots between major versions.
                
> Allow upgradesstables to be run against a specified directory
> -------------------------------------------------------------
>
>                 Key: CASSANDRA-5524
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5524
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Tyler Hobbs
>            Assignee: Nick Bailey
>            Priority: Minor
>             Fix For: 1.2.6
>
>         Attachments: 0001-Add-a-snapshot-upgrade-tool.patch
>
>
> Currently, upgradesstables only modifies live SSTables.  Because 
> sstableloader cannot stream old SSTable formats, this makes it difficult to 
> restore data from a snapshot taken in a previous major version of Cassandra.
> Allowing the user to specify a directory for upgradesstables would resolve 
> this, but it may also be nice to upgrade SSTables in snapshot directories 
> automatically or with a separate flag.

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