.NET Core 3.0.0 Preview 1 is available for download and usage in your environment. This release includes .NET Core 3.0.0 Preview 1 and .NET Core SDK 3.0.100 Preview 1. If Visual Studio is your preferred environment, you will need 16.0 Preview 1 to take full advantage of the .NET Core 3.0 Preview Download .Net Core 3.0.0-preview