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  - /docs/changelog/2023-10-19-storage-and-compute
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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](/docs/extensions/pg-extensions#update-an-extension-version) for instructions.

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