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dotnet-core-mixed-versions-example

This repository demonstrates how GitHub Copilot can help modernize .NET projects and tooling, especially when dealing with legacy codebases that use multiple .NET Core versions. It is designed as a hands-on demo for Copilot's capabilities in refactoring, upgrading, and maintaining .NET solutions.

Project Structure

The codebase contains several types of .NET projects:

  • DotNetCoreTwoPointOne: A console application targeting .NET Core 2.1, with a simple model (Person).
  • DotNetCoreTwoPointTwo: A console application targeting .NET Core 2.2, also with a basic model (Person).
  • DotNetCoreTwoPointTwo.Lib: A class library targeting .NET Core 2.2, intended for sharing code between projects.
  • DotNetCoreThreePointOne: A console application targeting .NET Core 3.1, with its own model (Person).
  • DotNetCoreThreePointOne.Web: An ASP.NET Core 3.1 MVC web application, including controllers, views, and models.
  • DotNetCoreThreePointOne.Test: A test project for the web application, demonstrating unit testing in .NET Core 3.1.

Purpose

The main goal is to showcase how Copilot can assist in:

  • Upgrading older .NET Core projects to newer versions
  • Refactoring and modernizing code
  • Adding tests and improving coverage
  • Migrating between project types (console, library, web, test)
  • Handling mixed-version solutions and dependencies

This repository is ideal for experimenting with Copilot's .NET features and for learning best practices in modernization workflows.