The driver and its dependencies

The C# driver only supports the Cassandra Binary Protocol and CQL3

Cassandra binary protocol 

The driver uses the binary protocol that was introduced in Cassandra 1.2. It only works with a version of Cassandra greater than or equal to 1.2. Furthermore, the binary protocol server is not started with the default configuration file in Cassandra 1.2. You must edit the cassandra.yaml file for each node:

start_native_transport: true

Then restart the node.

Cassandra compatibility 

The 2.0 version of the driver handles a single version of the Cassandra native protocol for the sake of simplicity. Cassandra does the multiple version handling. This makes it possible to do a rolling upgrade of a Cassandra cluster from 1.2 to 2.0 and then to upgrade the drivers in the application layer from 1.0 to 2.0. Because the application code needs to be changed anyway to leverage the new features of Cassandra 2.0, this small constraint appear to be fair.

  C# driver 1.0.x C# driver 2.0.x
Cassandra 1.2.x Compatible Compatible
Cassandra 2.0.x Compatible for Cassandra 1.0 API and commands Compatible

If you try to use any Cassandra 2.0 features with Cassandra 1.2, the driver throws a NotSupportedException.

Installing the driver with NuGet package manager 

You install the latest version of the driver from the NuGet Gallery:

PM> Install-Package CassandraCSharpDriver