Dotnet 10 Csharp 14

It pushes you toward minimal APIs with modular monolith organization, vertical slice architecture, and the new extension block syntax instead of old-style extension methods. The flowcharts for picking between IOptions variants or deciding Result vs Exception are genuinely helpful. Heavy emphasis on TypedResults over plain Results, built-in validation with ValidateOnStart, and AddStandardResilienceHandler instead of manual Polly config. If you're still writing MVC controllers or using DateTime.Now, this will feel opinionated, but that's the point. Good for greenfield APIs or teams refactoring toward feature folders.