How can I test new aggregating framework of Mongod

Question

I am waiting new aggregating framework of Mongodb. New aggregation framework query style documented in this address and it is written at top

The Aggregation Framework was first available in MongoDB 2.1.0.

So where I can download it for try that version ?

Answer 1

Right there: http://www.mongodb.org/downloads

In the "Development (unstable)" section.

Answer 2

The "Development Release" nightly builds available at http://www.mongodb.org/downloads include the aggregation framework.