Apache Lucene 6.4.2 发布了，值得关注的更新如下：
CommonGramsQueryFilter was producing a disconnected token graph, messing up phrase queries when it was used during query parsing
(Ere Maijala via Mike McCandless)
Fixed FilterCodecReader to override more super-class methods. Also added TestFilterCodecReader class.
(Christine Poerschke)
The UnifiedHighlighter and PostingsHighlighter were not highlighting prefix queries with multi-byte characters. TermRangeQuery is affected too.
(Dmitry Malinin, David Smiley)
Lucene 是 Apache 软件基金会一个开放源代码的全文检索引擎工具包，是一个全文检索引擎的架构，提供了完整的查询引擎和索引引擎，部分文本分析引擎。Lucene 的目的是为软件开发人员提供一个简单易用的工具包，以方便的在目标系统中实现全文检索的功能，或者是以此为基础建立起完整的全文检索引擎。
软件详情：http://lucene.apache.org/core/6_4_2/changes/Changes.html
下载地址：http://www.apache.org/dyn/closer.lua/lucene/java/6.4.2
来自:开源中国社区
