We finally switched the Node.js 2.0 driver to stable this morning and it contains a massive amount of under the cover engineering changes.
You can read more about the changes here.
http://mongodb.github.io/node-mongodb-native/2.0/tutorials/changes-from-1.0/
In short it implements the
- New Server Discovery and Monitoring Specification.
- New CRUD API specification.
Most legacy methods are still available but marked deprecated.
To install you can now simply do
npm install mongodb
And that will fetch the latest version of the 2.0.x series of the driver.