pgvector, an open-source PostgreSQL extension that provides vector similarity search capabilities, has released v0.5.0. This latest version of pgvector adds a new index type, hnsw, builds using parallel workers for ivfflat index type, improves performance for distance operations, and more. For more information, please see the CHANGELOG for 0.5.0:

https://github.com/pgvector/pgvector/blob/master/CHANGELOG.md#050-2023-08-28

For more information about pgvector, including how to get started, please visit the project repository on GitHub:

https://github.com/pgvector/pgvector