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### Fixes & improvements

- Updated the `pgvector` extension to version 0.4.4. 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.
- Added a check for available memory when creating an Hierarchical Navigable Small World (HNSW) index using the `pg_embedding` extension. HNSW builds indexes in memory. Insufficient memory for the index size could result in out-of-memory errors.