Quack: The DuckDB Client-Server Protocol

DuckDB has introduced Quack, a new client-server protocol that enables multiple DuckDB instances to communicate and share data with concurrent read/write capabilities, addressing a critical gap for multi-process and distributed workloads. This development positions DuckDB as a viable alternative to traditional databases for enterprise scenarios requiring shared data access while maintaining its signature simplicity and performance characteristics. IT organizations can now leverage DuckDB across a broader range of use cases—from real-time analytics pipelines to distributed telemetry systems—without sacrificing the efficiency of in-process deployments.