# C# 15 — Daily DevOps & .NET > A closer look at C# 15 candidate and preview language features, what they actually do, and whether they earn a place in enterprise codebases. Source: https://daily-devops.net/tags/csharp15/ Generated: 2026-08-19 ## About this topic - [Topic landing page](https://daily-devops.net/tags/csharp15/): A closer look at C# 15 candidate and preview language features, what they actually do, and whether they earn a place in enterprise codebases. - [Back to all topics](https://daily-devops.net/tags/) - [Site index](https://daily-devops.net/llms.txt) ## Articles tagged "C# 15" (1) - [C# 15 Union Types and Closed Hierarchies in Preview](https://daily-devops.net/posts/csharp-15-union-types-expectations/): C# 15 preview ships union types with compiler-checked exhaustiveness: a union of existing types, not F#-style discriminated cases, plus a boxing catch. ## Optional - [Full site index for LLMs](https://daily-devops.net/llms.txt) - [Full content of all articles](https://daily-devops.net/llms-full.txt) - [RSS for this tag](https://daily-devops.net/tags/csharp15/feed.rss) - [Atom for this tag](https://daily-devops.net/tags/csharp15/feed.atom) - [JSON Feed for this tag](https://daily-devops.net/tags/csharp15/feed.json)