14 December 2015, Apache Solr™ 5.4 available Solr is the popular, blazing fast, open source NoSQL search platform from the Apache Lucene project. Its major features include powerful full-text search, hit highlighting, faceted search, dynamic clustering, database integration, rich document (e.g., Word, PDF) handling, and geospatial search. Solr is highly scalable, providing fault tolerant distributed search and indexing, and powers the search and navigation features of many of the world's largest internet sites. Solr 5.4 is available for immediate download at: http://lucene.apache.org/solr/mirrors-solr-latest-redir.html Please read CHANGES.txt for a full list of new features and changes: https://lucene.apache.org/solr/5_4_0/changes/Changes.html Solr 5.4 Release Highlights: New Features ------------ UI Changes * The re-architected Admin UI is now prominently linked to from the existing UI, and includes support for managing collections as well as creating and removing fields via the schema tab. Expect it to be default in the next release. API Features * New Collections APIs for migrating from clusterstate.json to per-collection state.json and forcing the election of a leader when all replicas in a shard are down. * A new configset management API has been added. Querying Features * Filter cache is now accessible via a solr query syntax. * ScoreJoins can now refer to a single-sharded collection that is replicated on all nodes. * Add boost support, and 'exclude the queried document' in MoreLikeThis QParser. * Add a 'sort' local param to the collapse QParser to support using complex sort options to select the representitive doc for each collapsed group. Other Features * SolrJ now has support for connecting to Solr using basic authentication. * Analyzing suggesters can now filter suggestions by a context field. * JSON Facet API: add "method" param to terms/field facets to give an execution hint for what method should be used to facet. * CloneFieldUpdateProcessorFactory now supports choosing a "dest" field name based on a regex pattern and replacement init options. * Provide pluggable context tool support for VelocityResponseWriter. Please report any feedback to the mailing lists (http://lucene.apache.org/solr/discussion.html) Note: The Apache Software Foundation uses an extensive mirroring network for distributing releases. It is possible that the mirror you are using may not have replicated the release yet. If that is the case, please try another mirror. This also applies to Maven access.