[ANNOUNCE] Apache Lucene 8.5.0 released

## 24 March 2020, Apache Lucene 8.5.0 available

The Lucene PMC is pleased to announce the release of Apache Lucene =
8.5.0.

Apache Lucene is a high-performance, full-featured text search engine =
library written entirely in Java. It is a technology suitable for nearly =
any application that requires full-text search, especially =
cross-platform.

This release contains numerous bug fixes, optimizations, and =
improvements, some of which are highlighted below. The release is =
available for immediate download at:

 <https://lucene.apache.org/core/downloads.html>

### Lucene 8.5.0 Release Highlights:

* XYPointField allows you to index points in flat X,Y space and =
efficiently find documents that fall within a bounding box, distance or =
arbitrary polygon
* New query builders on LatLonShape allow you to efficiently find =
documents with a specific relation to a point or polygon
* You can now store up to 16 data dimensions in a Point field
* KoreanTokenizer supports custom dictionaries
* Binary doc values are now compressed, and term dictionaries have =
improved compression
* Index flushes are up to 20% faster if all docvalues updates are =
updating a single field to the same value
* The index of stored fields and term vectors is now stored off-heap
* Query parsers based on QueryBuilder can boost particular terms or =
synonyms by setting BoostAttribute values on a token stream
* Intervals queries correctly handle repeated subterms in ordered and =
unordered sources

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

 <https://lucene.apache.org/core/8_5_0/changes/Changes.html>