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ASP.NET Core and Blazor updates in .NET Core 3.0 Release Candidate 1

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ASP.NET Core and Blazor updates in .NET Core 3.0 Release Candidate 1

Daniel Roth

Daniel

.NET Core 3.0 Release Candidate 1 (RC1) is now available. This release contains only a handful of bug fixes and closely represents what we expect to release for .NET Core 3.0.

Please see the release notes for additional details and known issues.

Get started


To get started with ASP.NET Core in .NET Core 3.0 RC1 install the .NET Core 3.0 RC1 SDK.

If you’re on Windows using Visual Studio, install the latest preview of Visual Studio 2019.

.NET Core 3.0 RC1 requires Visual Studio 2019 16.3 Preview 4 or later.

There is also a Blazor WebAssembly preview update available with this release. This update to Blazor WebAssembly still has a Preview 9 version, but carries an updated build number. This is not a release candidate for Blazor WebAssembly. Blazor WebAssembly isn’t expected to ship as a stable release until some time after .NET Core 3.0 ships (details coming soon!).

To install the latest Blazor WebAssembly template run the following command:

dotnet new -i Microsoft.AspNetCore.Blazor.Templates::3.0.0-preview9.19457.4

Upgrade an existing project


To upgrade an existing ASP.NET Core app to .NET Core 3.0 Preview 9, follow the migrations steps in the ASP.NET Core docs.

Please also see the full list of breaking changes in ASP.NET Core 3.0.

To upgrade an existing ASP.NET Core 3.0 Preview 9 project to RC1:

  • Update all Microsoft.AspNetCore.* package references to 3.0.0-rc1.19457.4
  • Update all Microsoft.AspNetCore.Blazor.* package references to 3.0.0-preview9.19457.4

That’s it You should now be all set to use .NET Core 3.0 RC1!

Give feedback


We hope you enjoy the new features in this preview release of ASP.NET Core and Blazor! Please let us know what you think by filing issues on GitHub.

Thanks for trying out ASP.NET Core and Blazor!

Daniel Roth
Daniel Roth

Principal Program Manager, ASP.NET

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https://www.sickgaming.net/blog/2019/09/...ndidate-1/
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