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From "Mike Sokolov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-8844) Bump FST Version (to 7)
Date Sat, 08 Jun 2019 13:46:00 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-8844?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mike Sokolov updated LUCENE-8844:
---------------------------------
    Summary: Bump FST Version (to 7)  (was: Bump FST Version)

> Bump FST Version (to 7)
> -----------------------
>
>                 Key: LUCENE-8844
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8844
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Mike Sokolov
>            Assignee: Mike Sokolov
>            Priority: Major
>
> In LUCENE-8781, we changed the FST encoding but did not bump the version number we write
in its header. The change was backwards-compatible (new readers can still read old FSTs),
but not forwards-compatible: older readers would exhibit strange behavior if they attempted
to read one of these newer format FSTs.
> It would be much better if readers could catch such errors and notify in a sensible way,
and we have version checking that does that; we just need to increase the VERSION_CURRENT
constant.
> Also, ~[~dsmiley] points out the CHANGES.txt entries for LUCENE-8781 should be moved
to the 8.2.0 section since that change was backported. I think we can clean that up at the
same time since it's version-related.



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