Sequelize.js 3.4.1 发布，此版本更新内容如下：
[FIXED] Fix belongs-to-many countAssociations - ambigious id when through model has id
同一天还发布了 3.4.0，更新内容如下：
[ADDED] countAssociations for hasMany and belongsToMany
[ADDED] Geometry support for postgres
[FIXED] Fix wrong count for findAndCountAll with required includes #4016
[FIXED] Fix problems related to parsing of unique constraint errors #4017 and #4012
[FIXED] Fix postgres path variable being surrounded by quotes to often in unique constraint errors #4034
[FIXED] Fix removeAttributes(id) not setting this.primaryKeys to null
[FIXED] Run validations on the through model during add, set and create for belongsToMany
下载：https://github.com/sequelize/sequelize/archive/v3.4.1.zip。
Sequelize.js 提供对 MySQL，MariaDB，SQLite 和 PostgreSQL 数据库的简单访问，通过映射数据库条目到对象，或者对象到数据库条目。简而言之，就是 ORM（Object-Relational-Mapper）。Sequelize.js 完全是使用 JavaScript 编写，适用于 Node.js 的环境。
来自:开源中国社区
