.NET 10.0 is available from your project's **Build Configuration** under **Language Versions**. Open the .NET dropdown and pick either **Use the latest stable version (.NET 10.0)** -- the default for new projects -- or the explicit **.NET 10.0 (currently 10.0.301)** entry.

Once saved, `dotnet --version` in your build commands will report the 10.0 SDK on every build. No further setup is required.

If your repository already pins a version in `global.json`, DeployHQ reads it and selects the matching series automatically -- you don't need to set anything in the UI.

See [Building .NET applications](Article: building-dotnet-applications) for the full version list and `global.json` behavior.