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From Chris Hostetter <>
Subject [ANNOUNCE] Apache Solr 5.5.0 and Reference Guide for 5.5 available
Date Tue, 23 Feb 2016 17:59:50 GMT

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 5.5.0 is available for immediate download at:

Please read CHANGES.txt for a full list of new features and changes:

This is expected to be the last 5.x feature release before Solr 6.0.0.

Solr 5.5 Release Highlights:

  * The schema version has been increased to 1.6, and Solr now returns
    non-stored doc values fields along with stored fields

  * The PERSIST CoreAdmin action has been removed

  * The <mergePolicy> element is deprecated in favor of a similar
    <mergePolicyFactory> element, in solrconfig.xml

  * CheckIndex now works on ?HdfsDirectory

  * RuleBasedAuthorizationPlugin now allows wildcards in the role, and
    accepts an 'all' permission

  * Users can now choose compression mode in SchemaCodecFactory

  * Solr now supports Lucene's XMLQueryParser

  * Collections APIs now have async support

  * Uninverted field faceting is re-enabled, for higher performance on
    rarely changing indices

Further details of changes are available in the change log available at:

Also available is the Solr Reference Guide for Solr 5.5. This PDF serves 
as the definitive user's manual for Solr 5.5. It can be downloaded from 
the Apache mirror network:

Please report any feedback to the mailing lists 

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.


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