Lucene & Solr 8.0

It is a pleasure to inform that the new major release of Apache Lucene search library and Apache Solr search servers are now available. This release is numbered 8.0 and contains number of improvements and new features that should make every user consider an upgrade.

With the new major release we got lots of improvements, new features and bug fixes. We would like to mention some of them.

When it comes to the Apache Lucene library some of the changes that we would like to mention include:

  • Jump tables for DocValues helpful for sparse fields,
  • FeatureField allowing for efficient integration of static features into the scoring algorithm,
  • Query execution changes related to term queries, phrase queries and boolean queries – they can efficiently skip documents when total hit count is not needed, which basically makes those queries faster.

When it comes to Apache Solr search engine some of the changes that we would like to mention include:

  • Solr now uses HTTP/2 for node-to-node communication,
  • Improved nested documents support,
  • Autoscaling support in solr.cmd.

The full list of changes for Apache Lucene 8.0 can be found at https://lucene.apache.org/core/8_0_0/changes/Changes.html and the release announcement can be found at: https://wiki.apache.org/lucene-java/ReleaseNote80. The full list of changes for Apache Solr 8.0 can be found at https://lucene.apache.org/solr/8_0_0/changes/Changes.html and the release announcement can be found at: https://lucene.apache.org/solr/8_0_0/changes/Changes.html.

If you are interested in downloading Apache Lucene 8.0 you can find it at http://www.apache.org/dyn/closer.lua/lucene/java/8.0.0, while Apache Solr 8.0 binaries can be found at http://www.apache.org/dyn/closer.lua/lucene/solr/8.0.0.

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