MongooseJS 4.1.0 发布，此版本更新内容如下：
added; schema.queue() now public #3193
added; raw result as third parameter to findOneAndX callback #3173
added; ability to run validateSync() on only certain fields #3153
added; subPopulate #3103 timbur
added; $isDefault function on documents #3077
added; additional properties for built-in validator messages #3063 KLicheR
added; getQuery() and getUpdate() functions for Query #3013
added; export DocumentProvider #2996
added; ability to remove path from schema #2993 JohnnyEstilles
added; .explain() helper for aggregate #2714
added; ability to specify which ES6-compatible promises library mongoose uses #2688
added; export Aggregate #1910
下载：https://github.com/Automattic/mongoose/archive/4.1.0.zip。
Mongoose 是基于nodejs，使用javascript编程，连接mongodb数据库的软件包，使mongodb的文档数据模型变的优雅起来，方便对mongodb文档型数据库的连接和增删改查等常规数据操作。
mongoose是当前使用mean（mongodb express angularjs nodejs）全栈开发必用的连接数据库软件包。
来自:开源中国社区
