ScyllaDB Open Source Release 2.2

ScyllaDB 2.2, a minor release of the open-source ScyllaDB database, brings notable improvements in performance and security, including Role-Based Access Control (RBAC) for enhanced security and an experimental hinted handoff feature for better cluster consistency. The release also introduces GoogleCloudSnitch support, compatibility with Apache Cassandra features, and various performance optimizations such as row-level cache eviction and improved paged single partition queries, which significantly enhance throughput and reduce latency. A new CPU scheduler and compaction controller are introduced to manage internal workloads more efficiently. However, users employing certain compaction strategies may experience reduced throughput due to resource allocation changes in the static controller. Future updates like ScyllaDB 2.3 are expected to include dynamic controllers for all compaction strategies, while ScyllaDB versions 2.0 and older will no longer receive support.