How do I use .NET 10?

.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 for the full version list and global.json behavior.