MongooseJS 4.6.4 发布了，MongooseJS 是基于 node.js，使用 JavaScript 编程，连接 MongoDB 数据库的软件包，使MongoDB 的文档数据模型变得优雅起来，方便对 MongoDB 文档型数据库的连接和增删改查等常规数据进行操作。
MongooseJS 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。
该版本更新如下：
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fix(query): cast $not correctly #4616 #4592 prssn
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fix: address issue with caching global plugins #4608 #4601 TrejGun
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fix(model): make sure to depopulate in insertMany #4590
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fix(model): buffer autoIndex if bufferCommands disabled #4589
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fix(populate): copy ids array before modifying #4585
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feat(schema): add retainKeyOrder prop #4542悦德财富：https://www.yuedecaifu.com
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fix(document): return isModified true for children of direct modified paths #4528
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fix(connection): add dropDatabase() helper #4490
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fix(model): add usePushEach option for schemas #4455
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docs(connections): add some warnings about buffering #4413
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fix: add ability to set promise implementation in browser #4395