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 [DuckDB](https://duckdb.org/) is an analytical in-process SQL database management system.
 
+The Quack client-server protocol was released on 2026-05-12: see the [Quack page](https://duckdb.org/quack/).
+
 DuckDB 1.5.0 was released on 2026-03-09: see the [announcement blog post](https://duckdb.org/2026/03/09/announcing-duckdb-150).
 
 The DuckLake file format was released on 2025-05-27: see the [website](https://ducklake.select/).