Cassandra 2.0.1, 2.0.2, and a quick peek at 2.0.3

The latest minor releases of Cassandra 2.0.0 contain numerous bug fixes as well as new features and enhancements. Some highlights include improvements to handle larger columns, allowing SELECT DISTINCT on partition keys, optimizing cleanup operations, logging statistics for repair operations, introducing the LOCAL_ONE consistency level, saving compaction history results, adjusting default write request timeout settings, and prioritizing compacting frequently read data files. These updates aim to improve availability, latency, and overall performance of Cassandra systems.