Extensions
The `vss` extension is an experimental extension for DuckDB that adds indexing support to accelerate vector similarity search queries using DuckDB's new fixed-size `ARRAY` type.  
See the [announcement blog post](https://duckdb.org/2024/05/03/vector-similarity-search-vss) and the [“What's New in the Vector Similarity Search Extension?” post](https://duckdb.org/2024/10/23/whats-new-in-the-vss-extension).