Lucene and Solr 6.2

It is a pleasure to inform that the new version of Lucene library and Solr search server has been released. It is another release from the 6.x branch and it is numbered 6.2. Release fixes a few bugs found in the earlier version of Lucene and Solr and brings a few new functionalities.

Example changes in the Lucene library:

  • MMapDirectory no longer uses weak references,
  • QueryParser can be informed not to split on whitespace characters,
  • Index sorting is now a core Lucene functionality.

Example changes in Solr search engine:

  • DocValues data structure can now work with BoolFields,
  • The /export request handler supports Date and Boolean fields,
  • Cross data center replication can now copy the whole index if information in transaction log is not sufficient for replication,
  • Two new streaming expressions functions have been added – features and train to allow fatures extraction and regression.

Full list of changes can be found at the following URL:

Apache Lucene library 6.2 can be downloaded from: If you want to download Solr search server 6.2 go to

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This entry was posted on Sunday, August 28th, 2016 at 21:35 and is filed under About Lucene, About Solr, Lucene, Solr. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.