Upgrading an old .NET app doesn’t have to mean chasing broken builds and cryptic errors. Yet for many developers, a simple version bump turns into hours of dependency conflicts and manual fixes. Modernization isn’t just about staying current. Older frameworks can introduce security risks, slow performance, and block cloud adoption. Upgrading unlocks modern APIs, better tooling, and cloud-native features like automated scaling and secure identity management. That’s where GitHub Copilot app modernization comes in. Think of it as your modernization assistant, guiding you through every step, automating the heavy lifting, and helping you move from “this might take weeks” to “done in hours.”