[jira] [Commented] (SOLR-6342) Solr should mention CHANGES from Lucene which have side effects in Solr

["Hoss Man (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-6342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14091461#comment-14091461 ] 

Hoss Man commented on SOLR-6342:
--------------------------------

I'm so use to dealing with source releases, it didn't even occur to me until now that the binary releases wouldn't include the Lucene CHANGES.txt file -- but given the package structure of course that makes sense.

bq. 1. Duplicate the changes which have side effects in Solr under Solr's CHANGES.txt file also ( not sure if we do this already and that we missed this one ).

for really major things we usually note these in the "Upgrading" section, but no matter hw dillegent we may be, i still think it's a good idea that all solr users should have a copy of hte lucene CHANGES.txt as well

I think a build.xml addition that copies ../lucene/CHANGES.txt into the dist dir as "LUCENE_CHANGES.txt" and a one line note about it at the top of Solr's CHANGES.txt would make a lot of sense.

> Solr should mention CHANGES from Lucene which have side effects in Solr
> -----------------------------------------------------------------------
>
>                 Key: SOLR-6342
>                 URL: https://issues.apache.org/jira/browse/SOLR-6342
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Varun Thacker
>
> This is the problem that I faced - A user upgraded Solr from 4.0 to 4.9 and the queries being formed were behaving differently.
> I tracked it down to LUCENE-5180 ( which I believe is the correct thing to do ) . The problem is since Solr does't ship with the Lucene CHANGES.txt file and we didn't record this under the the Solr CHANGES.txt file also, a user is not aware of such changes when upgrading.
> I can think of two options - 
> 1. Duplicate the changes which have side effects in Solr under Solr's CHANGES.txt file also ( not sure if we do this already and that we missed this one ).
> 2. Be conservative and ship Solr binaries with the Lucene CHANGES.txt file also
> We should address this problem



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