24 June 2014, Apache Solr™ 4.9.0 available

The Lucene PMC is pleased to announce the release of Apache Solr 4.9.0

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 4.9.0 is available for immediate download at:

See the CHANGES.txt file included with the release for a full list of

Solr 4.9.0 Release Highlights:

* Numerous optimizations for doc values search-time performance

* Allow a client application to request the minium achieved replication 
  factor for an update request (single or batch) by sending an optional 
  parameter "min_rf".

* Query re-ranking support with the new ReRankingQParserPlugin.

* A new [child ...] DocTransformer for optionally including Block-Join 
  decendent documents inline in the results of a search.

* A new (default) Lucene49NormsFormat to better compress certain cases
  such as very short fields.

Solr 4.9.0 also includes many other new features as well as numerous
optimizations and bugfixes of the corresponding Apache Lucene release.

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 goes for Maven access.
  • No labels