New Features in Apache Cassandra

Cassandra 0.3 (released on Jul 21 2009)
(minor releases: 0.3.0)

Cassandra 0.4 (released on Sept 27 2009)
(minor releases: 0.4.0, 0.4.1, 0.4.2)

• Added an option to waiting for commitlog sync before acknowledging writes

New Features in Cassandra 0.5 (released on Jan 25 2010)
(minor releases: 0.5.0, 0.5.1)

• Added proactive repair
• Added load balancing
• Significantly improves bootstrap
• Included new tools like JSON-based data export import
• Improved command-line interface
• New JMX metrics

New Features in Cassandra 0.6 (released on Apr 12 2010)
(minor releases: 0.6.0, 0.6.1, 0.6.2, 0.6.3, 0.6.4, 0.6.5, 0.6.6, 0.6.7, 0.6.8, 0.6.9, 0.6.10, 0.6.11, 0.6.12, 0.6.13)

• Added support for integrated caching
• Added support for Apache Hadoop MapReduce

New Features in Cassandra 0.7 (released on Jan 08 2011)
(minor releases: 0.7.0, 0.7.1, 0.7.2, 0.7.3, 0.7.4, 0.7.5, 0.7.6, 0.7.7, 0.7.8, 0.7.9)

• Added secondary (column) indexes
• Added online schema changes/Live schema updates (ability to create, rename, and remove both Keyspaces and ColumnFamilies in live cluster)
• Expiring columns (i.e. TTL, Time To Live)

New Features in Cassandra 0.8 (released on Jun 2 2011)
(minor releases: 0.8.0, 0.8.1, 0.8.2, 0.8.3, 0.8.4, 0.8.5, 0.8.6, 0.8.7, 0.8.8, 0.8.9, 0.8.10)

• Added Cassandra Query Language (CQL, CQL 1.0)
• Self-tuning memtables
• Support for zero-downtime upgrades, rolling upgrades
• Counters

New Features in Cassandra 1.0 (released on Oct 17 2011)
(minor releases: 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8, 1.0.9, 1.0.10, 1.0.11, 1.0.12)

• Added integrated compression
• CQL 2.0 (Cassandra Query Language)
• Leveled compaction
• Improved read performance
• nodetool upgradesstables was available from Cassandra 1.0.4 onwards 

New Features in Cassandra 1.1 (released on Apr 23 2012)
(minor releases: 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.1.7, 1.1.8, 1.1.9, 1.1.10, 1.1.11, 1.1.12)

• CQL 3.0 (Cassandra Query Language)
• Added self-tuning (row, key) caches
• Row-level isolation
• Support for mixed ssd, hdd nodes/spinning disk deployments

New Features in Cassandra 1.2 (released on Jan 2 2013)
(minor releases: 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.2.7, 1.2.8, 1.2.9, 1.2.10, 1.2.11, 1.2.12, 1.2.13, 1.2.14, 1.2.15, 1.2.16)

• Added clustering across virtual nodes
• Inter-node communication
• Configurable and more frequent tombstone removal
• Atomic batches
• CQL 3.0.2
• Faster startup times
• Request tracing
• Multiple independent leveled compactions in parallel
• Murmur3Partitioner
• Improved handling of disk failures

New Features in Cassandra 2.0 (released on Sept 3 2013)
(minor releases: 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.0.6, 2.0.7)

• Faster reads of compressed data
• Faster partition index lookups and cache reads
• VNodes are enabled by default in cassandra.yaml

New Features in Cassandra 2.1

Cassandra 2.2

Cassandra 3.0

Cassandra 3.11

Cassandra 3.11.5


Related Cassandra Articles: Cassandra Distributed Database   Cassandra cli (Command Line Interface) Cassandra Query Language