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Posted to dev@lucene.apache.org by Erick Erickson <er...@gmail.com> on 2020/09/16 21:31:03 UTC

Upgrading Lucene indexes

I was once again explaining that if you upgrade X->X+1->X+2 you need to reindex from scratch sometime at least with X+1, even if you re-index all documents when it occurred to me to wonder whether a new merge policy could make that process easier.

So 
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