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From: Robert Muir <rcmuir@gmail.com>
Date: Thu, 14 Mar 2013 09:53:49 -0400
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 <CAOdYfZXuh8RxY1xZTW6qEzT7N0BKViimMBUv-B6Ob=oXDrOqgg@mail.gmail.com>
Subject: Re: Lucene version naming of index files
To: java-user@lucene.apache.org
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On Thu, Mar 14, 2013 at 7:22 AM, Bernd Fehling
<bernd.fehling@uni-bielefeld.de> wrote:
> Hi list,
>
> a stupid question about the naming of the index files.
> While using lucene (and solr) 4.2 I still see files with "Lucene41" in the name.
> This is somewhat confusing if lucene 4.x produces files with "Lucene4y".
> This also means indexes built with 4.2 or 4.3 are fully compatible with 4.1 ?

No and No.

Its just that the postings format is unchanged since 4.1

Don't try to read anything more into it.

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