Working with .NET
With the release of .NET 5, .NET is working to provide a uniform runtime to customers, allowing access to a single set of APIs, tools, and languages to target multiple platforms such as mobile, Internet of Things (IoT), and the cloud. The .NET Framework no longer receives any new features or updates, although it continues to be included in the Windows operating system. Although previous runtimes will continue to be supported for a while, both .NET Framework and .NET Core developers can now move on to use .NET 5 for new applications.
.NET 5 unified runtime
.NET Core / .NET 5
.NET 5 is a modern, open-source, cross-platform implementation of .NET, and runs on Windows, Linux, macOS, and other devices. .NET 5 is the evolution of .NET Core. Although .NET Core provided many of the same interfaces and method signatures as the .NET Framework, there were a variety of differences, making it potentially difficult to migrate applications from the .NET Framework to .NET Core. However, .NET 5 removes most of those differences and has made it possible to unify those legacy platforms.
As the next generation after .NET Core, .NET 5 is now the recommended platform for
modern scalable and high-performance applications, and, unlike .NET Framework, its design
makes it ideal for targeting microservices architectures. You can run .NET 5 applications on
AWS as direct deployments on Windows or Linux EC2 instances, on Windows or Linux containers
running on EC2 instances, serverless Linux containers running on AWS Fargate
Going forward in this whitepaper, whenever .NET 5 is mentioned, the same statements also apply to .NET Core. We explicitly call out any differences for .NET 5 and .NET Core use.