At the time of writing this book, Cassandra 1.2 is released with massive improvements over its precursor. Cassandra version 2.0 is set to release in August 2013, which is Cassandra 1.2 plus a few major features such as improvements in repair and compaction, triggers (as an RDBMS provides), eager retries, and compare and set (CAS) features. Version 1.2, with all its disruptive changes, can be thought of as a step to version 2.0. However, by the time this book is available to you, you might want to use Cassandra 2.0 or Cassandra 1.1.x for your production setup. This section will briefly cover new features in 1.2. It does not break the concepts that we learned throughout this book; it adds some more to that.