ElasticSearch 1.5.1 发布，下载地址：https://github.com/elastic/elasticsearch/archive/v1.5.1.zip
此版本主要更改信息如下：
Core:
Core: Lucene merges should run on the target shard during recovery #10463 (issue: #9226)
Engine:
Sync translog before closing engine #10484
Geo:
Fix validate_* merge policy for GeoPointFieldMapper #10165 (issue: #10164)
Inner Hits:
Make sure size=0 works on the inner_hits level. #10388 (issue: #10358)
Make sure inner hits also work for nested fields defined in object field #10353 (issue: #10334)
Fix bug where parse error is thrown if a inner filter is used in a nested filter/query. #10309 (issue: #10308)
Fix nested stored field support. #10235 (issue: #9766)
Internal:
Bugfix+unittest for unneccesary mapping refreshes caused by unordered fielddata settings #10370 (issue: #10318)
Don't try to send a mapping refresh if there is no master #10311 (issue: #10283)
Mapping:
Fix _field_names to be disabled on pre 1.3.0 indexes #10268 (issue: #9893)
Network:
Transport: fix racing condition in timeout handling #10220 (issue: #10187)
Parent/Child:
Children aggregation: Fix 2 bugs in children agg #10263 (issues: #10158, #9544, #9958)
Percolator:
Fix wrong use of currentFieldName outside of a parsing loop #10307
Query DSL:
Avoid NPE during query parsing #10333
Function score: apply min_score to sub query score if no function provided #10326 (issue: #10253)
Function_score: undo "Remove explanation of query score from functions" #9826
Recovery:
State: Refactor state format to use incremental state IDs #10316
Recovery: RecoveryState.File.toXContent reports file length as recovered bytes #10310
Fail shard when index service/mappings fails to instantiate #10283
Snapshot/Restore:
Don't reuse source index UUID on restore #10367
Snapshot/Restore: separate repository registration #10354 (issue: #10351)
Automatically add "index." prefix to the settings are changed on restore... #10269 (issue: #10133)
详细信息请看发行说明。
Elastic Search 是一个基于 Lucene 构建的开源，分布式，RESTful 搜索引擎。设计用于云计算中，能够达到实时搜索，稳定，可靠，快速，安装使用方便。支持通过 HTTP 使用 JSON 进行数据索引。
软件详情：https://www.elastic.co/downloads/past-releases/elasticsearch-1-5-1
来自:开源中国社区
