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# 5.2.2 Release Notes 原文链接 : [https://www.elastic.co/guide/en/elasticsearch/reference/5.3/release-notes-5.2.2.html](https://www.elastic.co/guide/en/elasticsearch/reference/5.3/release-notes-5.2.2.html) 译文链接 : [http://apache.wiki/display/Elasticsearch/5.2.2+Release+Notes](http://apache.wiki/display/Elasticsearch/5.2.2+Release+Notes) 贡献者 : [星星火](/display/~xuchangqun),[ApacheCN](/display/~apachecn),[Apache中文网](/display/~apachechina) 也可以参阅 [在 5.2 中的重大改变](/pages/viewpage.action?pageId=9406168)。 ### Bug fixes Aggregations * 恢复对 **include/pattern** 语法的支持. [#23140](https://github.com/elastic/elasticsearch/pull/23140)(issue: [#22933](https://github.com/elastic/elasticsearch/issues/22933)) Cluster * 不要将本地节点设置为用于节点链接验证的群集状态 [#23311](https://github.com/elastic/elasticsearch/pull/23311)(issue: [#21830](https://github.com/elastic/elasticsearch/issues/21830)) * 集群分配说明永远不会返回空响应体. [#23054](https://github.com/elastic/elasticsearch/pull/23054) Index APIs * 确保缩小的索引从其来源集成版本信息. [#22469](https://github.com/elastic/elasticsearch/pull/22469)(issue: [#22373](https://github.com/elastic/elasticsearch/issues/22373)) Internal * 始终恢复 **ThreadContext** 以使由于块阻塞而延迟的操作. [#23349](https://github.com/elastic/elasticsearch/pull/23349) Java REST Client * **RestClient** 异步执行不应该抛出异常.  [#23307](https://github.com/elastic/elasticsearch/pull/23307) Network * Respect promises on pipelined responses [#23317](https://github.com/elastic/elasticsearch/pull/23317)(issues: [#23310](https://github.com/elastic/elasticsearch/issues/23310), [#23322](https://github.com/elastic/elasticsearch/issues/23322)) * 确保调用释放监听器 [#23310](https://github.com/elastic/elasticsearch/pull/23310) Plugin Ingest Attachment * 移除对 **Visio** 和 **potm** 文件的支持 [#23214](https://github.com/elastic/elasticsearch/pull/23214)(issues: [#22077](https://github.com/elastic/elasticsearch/issues/22077), [#22079](https://github.com/elastic/elasticsearch/issues/22079), [#22963](https://github.com/elastic/elasticsearch/issues/22963)) REST * 正确的编码头位置 [#23133](https://github.com/elastic/elasticsearch/pull/23133)(issues: [#21057](https://github.com/elastic/elasticsearch/issues/21057), [#23115](https://github.com/elastic/elasticsearch/issues/23115)) Stats * 修复控制组模式 [#23219](https://github.com/elastic/elasticsearch/pull/23219)(issue: [#23218](https://github.com/elastic/elasticsearch/issues/23218))