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From Ishan Chattopadhyaya <>
Subject [ANNOUNCE] Apache Solr 6.4.2 released
Date Tue, 07 Mar 2017 19:30:47 GMT
7 March 2017, Apache Solr 6.4.2 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 and analytics, rich document
parsing, geospatial search, extensive REST APIs as well as parallel SQL.
Solr is enterprise grade, secure and 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 6.4.2 is available for immediate download at:


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


Solr 6.4.2 contains 4 bug fixes since the 6.4.1 release:


   Serious performance degradation in Solr 6.4 due to the metrics
   collection. IndexWriter metrics collection turned off by default, directory
   level metrics collection completely removed (until a better design is

   Transaction log replay can hit an NullPointerException due to new
   Metrics code

   NullPointerException in CloudSolrClient when reading stale alias

   UnifiedHighlighter and PostingsHighlighter bug in PrefixQuery and
   TermRangeQuery for multi-byte text

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

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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