[pgvector](https://github.com/pgvector/pgvector/), an open-source PostgreSQL extension that provides vector similarity search capabilities, has released [v0.5.0](https://github.com/pgvector/pgvector/releases/tag/v0.5.0). This latest version of pgvector adds a new index type, [`hnsw`](https://github.com/pgvector/pgvector/#hnsw), builds using parallel workers for [`ivfflat`](https://github.com/pgvector/pgvector/#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):
[https://github.com/pgvector/pgvector/blob/master/CHANGELOG.md#050-2023-08-28](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): [https://github.com/pgvector/pgvector](https://github.com/pgvector/pgvector)
