Tag: Open Source

Blog Posts with tag "Open Source"

09 Mar 2026

C# 15 Unions: Unions are finally in .NET

By BEN ABT .NET C# .NET 11 Language Design Open Source 7 min reading time

After many years of workarounds, design discussions and library-level substitutes, unions are finally becoming a first-class part of C#. The proposal in the C# language repository is no longer a distant idea. With the …

Read Blog Post

02 Mar 2026

Unio: High-Performance Discriminated Unions for C#

By BEN ABT .NET C# Open Source Performance Design Patterns 19 min reading time

C# is a powerful language, but there is one road it has not yet fully paved: native discriminated union types. Developers have been working around this absence for years, typically choosing between throwing exceptions …

Read Blog Post