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https://issues.apache.org/jira/browse/LUCENE-9220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17035394#comment-17035394
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Erick Erickson commented on LUCENE-9220:
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It'd be interesting to see if the tests pass.
On a quick look, it would be fairly tedious. All of the class names have been
changed to start with a lowercase letter, so all of the referenced in the code
would need to be changed and there have been some interface changes that would
need to be hunted down one by one. I don't know how much work that would be.
It's probably a good idea to upgrade, but not something I'll have time for any
time soon.
> Upgrade Snowball version to 2.0
> -------------------------------
>
> Key: LUCENE-9220
> URL: https://issues.apache.org/jira/browse/LUCENE-9220
> Project: Lucene - Core
> Issue Type: Wish
> Reporter: Nguyen Minh Gia Huy
> Priority: Major
>
> When working with Snowball-based stemmers, I realized that Lucene is
> currently [using a pre-compiled version of
> Snowball|https://lucene.apache.org/core/8_4_1/analyzers-common/org/apache/lucene/analysis/snowball/package-summary.html],
> that seems from 12 years ago:
> https://github.com/snowballstem/snowball/tree/e103b5c257383ee94a96e7fc58cab3c567bf079b
> Snowball has just released v2.0 in 10/2019 with many improvements, new
> supported languages ( Arabic, Indonesian…) and new features ( stringdef
> notation for Unicode codepoints…). Details of the changes could be found
> here: https://github.com/snowballstem/snowball/blob/master/NEWS. I think
> these changes of Snowball could give a promising positive impact on Lucene.
> I wonder when Lucene should upgrade Snowball to the latest version ( v2.0).
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