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。 MongooseJS 4.1.4 发布，此版本主要是 bug 修复，更新内容如下： fixed; ability to set strict: false for update #3305 fixed; .create() properly uses ES6 promises #3297 fixed; pre hooks on nested subdocs #3291 #3284 aliatsis docs; remove unclear text in .remove() docs #3282 fixed; pre hooks called twice for 3rd-level nested doc #3281 fixed; nested transforms #3279 upgraded; mquery -> 1.6.3 #3278 #3272 fixed; don't swallow callback errors by default #3273 #3222 fixed; properly get nested paths from nested schemas #3265 fixed; remove() with id undefined deleting all docs #3260 thanpolas fixed; handling for non-numeric projections #3256 fixed; findById with id undefined returning first doc #3255 fixed; use retainKeyOrder for update #3215 added; passRawResult option to findOneAndUpdate for backwards compat #3173 下载：https://github.com/Automattic/mongoose/archive/4.1.4.zip。 MongooseJS 4.1.4 发布，MongonDB 连接包下载地址
