MongoDB 3.1.9 发布，此版本是个开发版本，不建议在生产环境使用。 新特性： - Improved high-availability: config servers as replica sets and faster elections - WiredTiger as the default storage engine - Document validation rules - Partial indexes - Encryption at rest - SpiderMonkey as the Javascript engine - Multilingual case-sensitive full-text search and improved Unicode text search support - Aggregation and query optimizer improvements, including a sampling operator and outer left joins - Network stack improvements - Tools improvements bug 修复： - SERVER-533: Aggregation stage to randomly sample documents - SERVER-1448: Host sharding config data on a replica set - SERVER-10225: Replica set failover speed improvement - SERVER-15176: New commands for find and getMore - SERVER-17861: Change the default storage engine to WiredTiger - SERVER-17991: Encrypted Storage Engine Enterprise - Single system key - SERVER-18624: listCollections command should not be O(n^2) on MMAPv1 - SERVER-20159: Out of memory on index build during initial sync even with low cacheSize parameter - SERVER-20339: Make NetworkInterfaceASIO the default factory - TOOLS-916: Mongo export throws reflect.Value.Type errors 发行说明 | 下载 | 问题列表 MongoDB 3.1.9 发布，分布式文档数据库下载地址
