The ClickHouse Cloud team has announced the beta release of an open-source Kafka Connect Sink for ClickHouse, a new official connector that allows users to push data from Apache Kafka into ClickHouse with exactly-once delivery semantics. The connector is designed to address the limitations of existing solutions, which typically offer at-least-once delivery and do not support all ClickHouse types. The new connector exploits the insert deduplication features of ClickHouse, using a state machine to formulate consistent batches for insertion and providing guaranteed deduplication in case of failure. It also leverages ClickHouse Keeper for strongly consistent storage, which is ideal for persisting small data quantities when highly consistent storage is required. The connector is designed to be architecturally simple, with minimal dependencies, and can be used with the Kafka Connect framework, making it a valuable addition to the ClickHouse ecosystem.