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### Support for pgvector 0.5.1

The `pgvector` extension for vector similarity search in Postgres was updated to a newer version.

| Postgres extension | Old version | New version |
| ------------------ | ----------- | ----------- |
| `pgvector`         | 0.5.0       | 0.5.1       |

The new version of `pgvector` improves HNSW index build performance. For other updates, refer to the [pgvector changelog](https://github.com/pgvector/pgvector/blob/master/CHANGELOG.md).

If you installed this extension previously and want to upgrade to the latest version, please refer to [Update an extension version](https://neon.com/docs/extensions/pg-extensions#update-an-extension-version) for instructions.

For a complete list of Postgres extensions supported by Neon, see [Postgres extensions](https://neon.com/docs/extensions/pg-extensions).