Announcing .NET 5.0, C# 9, F# 5

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Author: Richard Lander

We’re excited to release .NET 5.0 today and for you to start using it. It’s a major release — including C# 9 and F# 5 — with a broad set of new features and compelling improvements.

C# 9 and F# 5 offer new language improvements such as top-level programs and records for C# 9, while F# 5 offers interactive programming and a performance boost for functional programming on .NET.

As part of .NET 5.0 and 6.0, we are unifying .NET into a single product experience, while enabling you to pick just the parts of the .NET platform that you want to use. If you want to target Mobile and not WebAssembly, you don’t need to download the WebAssembly tools, and vice versa. Same with ASP.NET Core and WPF. You’ll also have a much easier way to acquire all the .NET tools and build and runtime packs that you need from the command line. We’re enabling a package manager experience (including using existing package managers) for .NET platform components. That will be great for many scenarios. Quick construction of a development environment and CI/CD will probably be the biggest beneficiaries.

https://devblogs.microsoft.com/dotnet/announcing-net-5-0/