{"id":22550,"date":"2019-09-16T11:45:36","date_gmt":"2019-09-16T18:45:36","guid":{"rendered":"https:\/\/devblogs.microsoft.com\/aspnet\/?p=22550"},"modified":"2019-09-16T11:45:36","modified_gmt":"2019-09-16T18:45:36","slug":"asp-net-core-and-blazor-updates-in-net-core-3-0-release-candidate-1","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/dotnet\/asp-net-core-and-blazor-updates-in-net-core-3-0-release-candidate-1\/","title":{"rendered":"ASP.NET Core and Blazor updates in .NET Core 3.0 Release Candidate 1"},"content":{"rendered":"<p><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/announcing-net-core-3-0-release-candidate-1\/\">.NET Core 3.0 Release Candidate 1 (RC1) is now available<\/a>. This release contains only a handful of bug fixes and closely represents what we expect to release for .NET Core 3.0.<\/p>\n<p>Please see the <a href=\"https:\/\/aka.ms\/netcore3releasenotes\">release notes<\/a> for additional details and known issues.<\/p>\n<h2>Get started<\/h2>\n<p>To get started with ASP.NET Core in .NET Core 3.0 RC1 <a href=\"https:\/\/aka.ms\/netcore3download\">install the .NET Core 3.0 RC1 SDK<\/a>.<\/p>\n<p>If you&#8217;re on Windows using Visual Studio, <a href=\"https:\/\/visualstudio.com\/preview\">install the latest preview of Visual Studio 2019<\/a>.<\/p>\n<p><em>.NET Core 3.0 RC1 requires Visual Studio 2019 16.3 Preview 4 or later<\/em>.<\/p>\n<p>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 <em>not<\/em> a release candidate for Blazor WebAssembly. Blazor WebAssembly isn&#8217;t expected to ship as a stable release until some time after .NET Core 3.0 ships (details coming soon!).<\/p>\n<p>To install the latest Blazor WebAssembly template run the following command:<\/p>\n<pre><code>dotnet new -i Microsoft.AspNetCore.Blazor.Templates::3.0.0-preview9.19457.4\n<\/code><\/pre>\n<h2>Upgrade an existing project<\/h2>\n<p>To upgrade an existing ASP.NET Core app to .NET Core 3.0 Preview 9, follow the <a href=\"https:\/\/docs.microsoft.com\/en-us\/aspnet\/core\/migration\/22-to-30\">migrations steps in the ASP.NET Core docs<\/a>.<\/p>\n<p>Please also see the full list of <a href=\"https:\/\/github.com\/aspnet\/announcements\/issues?utf8=%E2%9C%93&amp;q=is%3Aissue+label%3A3.0.0+label%3A%22Breaking+change%22\">breaking changes<\/a> in ASP.NET Core 3.0.<\/p>\n<p>To upgrade an existing ASP.NET Core 3.0 Preview 9 project to RC1:<\/p>\n<ul>\n<li>Update all Microsoft.AspNetCore.* package references to 3.0.0-rc1.19457.4<\/li>\n<li>Update all Microsoft.AspNetCore.Blazor.* package references to 3.0.0-preview9.19457.4<\/li>\n<li>Update all Microsoft.Extensions.* package references to 3.0.0-rc1.19456.10<\/li>\n<\/ul>\n<p>That&#8217;s it You should now be all set to use .NET Core 3.0 RC1!<\/p>\n<h2>Give feedback<\/h2>\n<p>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 <a href=\"https:\/\/github.com\/aspnet\/aspnetcore\/issues\">GitHub<\/a>.<\/p>\n<p>Thanks for trying out ASP.NET Core and Blazor!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>.NET Core 3.0 Release Candidate 1 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.<\/p>\n","protected":false},"author":417,"featured_media":21370,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[196,197,7509,7251],"tags":[],"class_list":["post-22550","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dotnet-core","category-aspnet","category-aspnetcore","category-blazor"],"acf":[],"blog_post_summary":"<p>.NET Core 3.0 Release Candidate 1 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.<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/posts\/22550","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/users\/417"}],"replies":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/comments?post=22550"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/posts\/22550\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/media\/21370"}],"wp:attachment":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/media?parent=22550"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/categories?post=22550"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/tags?post=22550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}