DuckDB 1.5.3 Adds Quack Client-Server, SQLite Gets Cypher Graph Extension

Today's Highlights

This week, DuckDB releases version 1.5.3 with the Quack client-server protocol, enabling concurrent writes for the embedded analytics database. Additionally, the GraphQLite extension brings powerful Cypher-based graph database capabilities directly to SQLite users.

DuckDB 1.5.3: Not an Ordinary Patch Release (DuckDB Blog)

Source: https://duckdb.org/2026/05/20/announcing-duckdb-153.html