Apache Lucene 5.5.1 发布，Java 搜索引擎

Apache Lucene 5.5.1 发布了。

更新内容：

Bug fixes  (3)

1. LUCENE-7112: WeightedSpanTermExtractor.extractUnknownQuery is only called on queries that could not be extracted. 
   (Adrien Grand)

2. LUCENE-7188: remove incorrect sanity check in NRTCachingDirectory.listAll() that led to IllegalStateException being thrown when nothing was wrong. 
   (David Smiley, yonik)

3. LUCENE-7209: Fixed explanations of FunctionScoreQuery. 
   (Adrien Grand)

详情： Lucene CHANGES.txt

下载地址： http://www.apache.org/dyn/closer.lua/lucene/java/5.5.1