Data and AI releases

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- DuckDB 1.4.2: MotherDuck supports DuckDB 1.4.2, a bugfix release

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- DuckDB 1.4.2: MotherDuck supports DuckDB 1.4.2, a bugfix release. Learn more in the official DuckDB Labs 1.4.2 announcement and changelog . Full command menu now at Cmd/Ctrl+K : Access common MotherDuck UI actions from your keyboard, including generating query edits, adding notebook cells, creating notebooks, and navigating between pages.

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Also shipped Nov 14, 2025MotherDuck in November 2025 →

What's new in Sigma

Admin Audit log support for GCP KSA region Sigma now supports audit log events for organizations hosted in the GCP KSA (ME Central 2) region. For a list of all supported regions, see Enable or disable audit logging .

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Performance improvements

- Sorting is 2x+ faster: Complete rewrite of sorting uses less memory and scales better across threads for ORDER BY, window functions, and list sorting More efficient small writes: Appending small numbers of rows now writes far fewer bytes 5x faster checkpointing: Reuses table metadata when tables aren't altered during checkpoint Parallel connection...

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SQL syntax updates

- MERGE INTO statement: Standard SQL upserts without requiring primary keys or indexes FILL() window function: Interpolate missing values in ordered data Python-style macro arguments: Macros accept positional or named arguments for any parameter STRUCT to MAP cast: Direct casting between struct and map types

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