[Solr Wiki] Update of "ReleaseNote73" by AlanWoodward

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= DATE, Apache Solr™ 7.3.0 available =

The Lucene PMC is pleased to announce the release of Apache Solr 7.3.0

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 7.3.0 is available for immediate download at: http://lucene.apache.org/solr/mirrors-solr-latest-redir.html

See http://lucene.apache.org/solr/7_3_0/changes/Changes.html for a full list of details.

== Solr 7.3.0 Release Highlights: ==
 * A new update request processor supports OpenNLP-based entity extraction
 * Support for automatic time-based collection creation
 * Multivalued primitive fields can now be used in sorting
 * A new !SortableTextField allows both indexing and sorting/faceting on free text
 * Several new stream evaluators
 * Improvements around leader-initiated recovery
 * New autoscaling features
 * Metrics can now be exported to Prometheus

You are encouraged to thoroughly read the "Upgrade Notes" at http://lucene.apache.org/solr/7_3_0/changes/Changes.html or in the
CHANGES.txt file accompanying the release.

Solr 7.3 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 (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 goes for Maven access.