Use semantic search and RAG in C# with the Weaviate Managed .NET client — attribute-driven schema, type-safe queries, and safe migrations, all in idiomatic .NET.

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Weaviate has released a Managed .NET Client (technical preview) that brings an Entity Framework Core-inspired experience to the Weaviate vector database. Developers define collection schemas using C# attributes directly on model classes, eliminating separate config files and magic strings. The client supports type-safe LINQ-style queries that compile into vector search filters, automatic schema migrations with safety checks against breaking changes, RAG via a [Generative<T>] attribute, multi-tenancy with per-tenant context scoping, and ASP.NET Core DI integration. Named vectors, cross-collection references, projections, and aggregations are all supported. The package is available on NuGet and open source on GitHub.

Your Code is Your Schema: Weaviate Managed C# Client