DuckDB v2.0 is approaching, and the preview introduces some significant changes for developers building analytics systems.
The headline feature is Quack, an optional client/server mode that allows DuckDB to serve remote clients while preserving its traditional embedded deployment model.
The preview also includes:
A stable extension API
CONNECT for remote sessions
A new storage format
Changes to lambda syntax
A new extension repository mechanism
Improvements to the SQL parser
However, several important pieces are still unfinished. Quack remains beta, and the final storage migration path and compatibility guarantees will only become clear with the stable release.
This article looks at what DuckDB v2.0 actually changes and what teams should test before upgrading.
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