ScyllaDB Release 2.1

ScyllaDB 2.1 represents a significant update to the open-source NoSQL database, known for its compatibility with Apache Cassandra and enhanced performance, offering new features and improvements. This release introduces the Time Window Compaction Strategy (TWCS) for more efficient handling of time series data, CQL additions like cast functions and support for the Duration data type, and enhancements in memory efficiency through optimized storage of CompressionInfo.db files. The update also includes transitional authentication features for seamless access control, a new REST API for aborting repairs, and experimental secondary indexing capabilities. Additionally, ScyllaDB's monitoring stack has been updated with a new dashboard and several new metrics to better assess database performance. With critical bug fixes limited to versions 2.1 and 2.0, users are encouraged to upgrade from earlier versions to benefit from these advancements.