devtake.dev — #csharpArticles tagged csharp on devtake.dev.https://devtake.dev/en-usC# is getting union types in version 15. The preview shipped in .NET 11 Preview 2.https://devtake.dev/article/csharp-15-union-types-preview/https://devtake.dev/article/csharp-15-union-types-preview/Mads Torgersen's union proposal landed in .NET 11 Preview 2 on April 2. C# 15 targets November 2026 and replaces the OneOf library hack the .NET community has been living with.Sun, 24 May 2026 09:30:00 GMTopen-sourcedotnetcsharplanguage-releasemicrosoftpattern-matchingdev-toolsfsharptypescriptsoren-vanek