Mongoosejs 4.0.4 发布，此版本更新内容如下：
docs; findAndModify new parameter correct default value #3012 JonForest
docs; clarify pluralization rules #2999 anonmily
fix; discriminators with schema methods #2978
fix; make isModified a schema reserved keyword #2975
fix; properly fire setters when initializing path with object #2943
fix; can use setDefaultsOnInsert without specifying runValidators #2938
fix; always set validation error's kind property #2885
upgraded; node driver -> 2.0.33 #2865
Mongoose 基于nodejs，使用javascript编程，连接mongodb数据库的软件包，是mongodb的数据模型变的优雅起来，方便对文档型nosql数据库的连接和增删改操作。
软件详情：https://github.com/Automattic/mongoose/blob/master/History.md#404--2015-05-28
下载地址：https://github.com/Automattic/mongoose
来自:开源中国社区
