.NET Core 3.0 RC1 Is Now Available

.NET Core 3.0 RC1 brings a Blazor WebAssembly preview update.

Recently, Microsoft announced that .NET Core 3.0 Release Candidate 1 (RC1) is now available. The release contains a bunch of bug fixes and a Blazor WebAssembly preview update.
According to the company, 3.0 RC1 closely represents what you can expect from release for .NET Core 3.0.
For getting started with ASP.NET Core in .NET Core 3.0 RC1 you need to install the .NET Core 3.0 RC1 SDK. If you’re on Windows using Visual Studio, you are required to install the latest preview of Visual Studio 2019(RC1 requires Visual Studio 2019 16.3 Preview 4 or later).
.net core  3 RC 1 
The new update to Blazor WebAssembly still has a Preview 9 version, but it packs an updated build number. This update is not a RC for Blazor WebAssembly. Blazor WebAssembly as a stable release can be expected to be released sometime after .NET Core 3.0 ships.
For installing the latest Blazor WebAssembly template you can use the following command:
dotnet new -i Microsoft.AspNetCore.Blazor.Templates::3.0.0-preview9.19457.4
To see a detailed list of changes, you can visit the release notes here.