Two-layer caching in ASP.NET Core with HybridCache: in-memory L1 + Redis-ready L2, cache stampede protection, and tag-based invalidation. .NET 10 Web API sample.

Demonstrates Named, Default, and Endpoint-Level CORS policies in ASP.NET Core Web API with security best practices, preflight handling, and anti-pattern examples.

Hands-on demo of EF Core 10 new features: LeftJoin/RightJoin LINQ operators, named query filters, ExecuteUpdateAsync delegate setters, and JSON column mapping in ASP.NET Core Web API.