Scala 2.13 support, a new Kafka Distributed Processing module, a first-class Fold for eventsourced state, and transactional command execution.
Say hello to the new NODE KEY constraint for composite uniqueness, a new Editor role with read/write access, faster DISTINCT variable-length matches, and richer dbms.listQueries with memory and page stats.
JSON Schema validation and JSON Pointer support land in RapidJSON, with relaxed JSON (comments, trailing commas, NaN/Infinity) and slick C++11 range-based iteration.