Entity Framework Core (EF Core) 9 introduces significant enhancements focused on performance, developer productivity, and scalability. Key improvements include advanced LINQ query methods, better handling of complex types, reduced SQL round trips, expanded array mapping with read-only collections, optimized SQL generation, efficient query translation with the logical negation operator, and new methods for database seeding. The EF 9 version also brings refined support for Azure Cosmos DB, enhancing query performance and reducing costs. These updates are part of the .NET 9 release and aim to simplify data access in ASP.NET Core applications.
Table of contents
1. New LINQ Queries2. Improvement in Round-trip Queries3. Read-only Primitive Collections4. More Efficient Queries5. Improvement for Queries that Use != 06. Order and OrderDescending Operators7. The Logical Negation Operator (!) Is Now More Efficient8. HierarchyId in SQL Server9. New Propagation Methods UseSeeding and UseAsyncSeeding10. Azure Cosmos DB: More Efficient Queries with Partition Keys and Document IDsConclusionSort: