Apache Solr 4.6.0 发布了，主要改进包括：
* Many improvements and enhancements for shard splitting options
* New AnalyzingInfixLookupFactory to leverage the AnalyzingInfixSuggester
* New CollapsingQParserPlugin for high performance field collapsing on high
cardinality fields
* New SolrJ APIs for collection management
* New DocBasedVersionConstraintsProcessorFactory providing support for user
configured doc-centric versioning rules
* New default index format: Lucene46Codec
* New EnumField type
Solr 4.6 同时还包含很多其他新特性和优化以及 bug 修复。
项目主页：http://lucene.apache.org/solr/
下载地址：http://www.apache.org/dyn/closer.cgi/lucene/solr/
来自:开源中国社区
