Redis 4.0 is the latest version that has been launched. It contains various big improvements compared to the previous versions.

  1. It supports mixed RDB+AOF Format.
  2. Improvement in memory usage and performance.
  3. New Memory Command has been introduced.
  4. Active Memory Defragmentation.
  5. Faster Redis Cluster key creation.

Trade Offs

Redis 4.0 is still not a stable release but is a very battle tested release, so Redis 3.2 is a better pick for critical applications till Redis 4.0 matures more in next few months.