G# language for .NET borrows from Go, Kotlin, and Swift
G# (GSharp) is moving forward as a programming language for Microsoft’s .NET platform, touted as bringing Go-, Kotlin-, and Swift-style ergonomics to the CLR (Common Language Runtime). The language is described by its creators as modern, simple, and accessible.
Although pre-1.0 and still growing, G# aims to be for people who want a small, predictable language with direct access to the .NET ecosystem. Developers will see imports, func, structs, slices, maps, channels, go, select, and for in iteration. Also important are nullable flow, direct calls into the CLR (Common Language Runtime), and built-in concurrency.
With G#, copyrighted in 2026, developers get value-oriented structs, reference-oriented classes, data structs, and data classes. For concurrency, G# uses scope for structured concurrency, async func and await for task-based asynchrony, and async sequence[T] for asynchronous streams. G# also makes use of the same Task and Task[T] types familiar from the .NET BCL (Base Class Library).
