C# 13 & .NET New Features Explained with Examples

Install the dotnet sdk and vscode or visual studio community edition, understand dotnet runtime and asp.net core, and use dotnet cli for development, building, testing, and managing NuGet packages.

Learn to create and run a dotnet 8 console app using the CLI, manage NuGet packages, view csproj, and publish with self-contained or framework-dependent options.

Switch between dotnet versions using a global.json file, and use dotnet watch to automatically rebuild and re-run changes via a file system watcher.

Explains entry points in dotnet apps, contrasting top level statements with explicit main, and how the compiler generates startup code, handles command line arguments, and exit codes.

configure multi-targeting by specifying multiple target frameworks in the csproj, such as netcoreapp3.1 and net8.0, to build for multiple dotnet versions.

Explore the evolution of c# from 7 through 12, mastering switch pattern matching, switch expressions, top-level statements, init properties, and read-only members in practical demos.

Explore default interface methods, multiple interface inheritance, and records for immutable data with init properties, record inheritance, and read-only structs in C# 9 and 10.

Explore global using and file-scoped namespaces in C# 10, learn how to enable global usings in the csproj, and use file-level namespace declarations to reduce boilerplate and avoid ambiguity.

Discover nullable reference types in C# 10, which splits reference types into nullable and non-nullable to reduce null reference exceptions, with project or file level enablement.

Explore C# 11 features: raw string literals, auto default structure, required members, and file local types.