Hi, We are upgrading solr from 3.6 to 4.3, but we have a large amount of indexed data and could not afford to to reindex all once. We wish solr 4.3 could do the following: 1/ still able to search on solr 3.6 indexed data 2/ whenever indexing new document, convert to 4.3 format (may not happen all once) In this case, should we use LUCENE_36 or LUCENE_43 for luceneMatchVersion (it is suggested that we should reindex all data if using LUCENE_43, so I think we should use LUCENE_36, since we cannot reindex all once, true)? Thanks very much for helps, Lisheng
