{"id":113168,"date":"2020-05-19T15:00:37","date_gmt":"2020-05-19T15:00:37","guid":{"rendered":"https:\/\/devblogs.microsoft.com\/aspnet\/?p=23676"},"modified":"2020-05-19T15:00:37","modified_gmt":"2020-05-19T15:00:37","slug":"asp-net-core-updates-in-net-5-preview-4","status":"publish","type":"post","link":"https:\/\/sickgaming.net\/blog\/2020\/05\/19\/asp-net-core-updates-in-net-5-preview-4\/","title":{"rendered":"ASP.NET Core updates in .NET 5 Preview 4"},"content":{"rendered":"<div class=\"row justify-content-center\">\n<div class=\"col-md-4\">\n<div><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.sickgaming.net\/blog\/wp-content\/uploads\/2020\/05\/asp-net-core-updates-in-net-5-preview-4.png\" width=\"58\" height=\"58\" alt=\"Avatar\" class=\"avatar avatar-58 wp-user-avatar wp-user-avatar-58 photo avatar-default\"><\/p>\n<p>Sourabh<\/p>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"entry-meta\">\n<p>May 19th, 2020<\/p>\n<\/p><\/div>\n<p><!-- .entry-meta --> <\/p>\n<p><a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/announcing-net-5-preview-4-and-our-journey-to-one-net\">.NET 5 Preview 4 is now available<\/a> and is ready for evaluation! .NET 5 will be a <a href=\"https:\/\/dotnet.microsoft.com\/platform\/support\/policy\/dotnet-core\">current release<\/a>.<\/p>\n<h2>Get started<\/h2>\n<p>To get started with ASP.NET Core in .NET 5.0 Preview4 <a href=\"https:\/\/dotnet.microsoft.com\/download\/dotnet-core\/5.0\">install the .NET 5.0 SDK<\/a>.<\/p>\n<p>If you\u2019re on Windows using Visual Studio, we recommend <a href=\"https:\/\/visualstudio.microsoft.com\/vs\/preview\/\">installing the latest preview of Visual Studio 2019 16.6<\/a>.<\/p>\n<p>If you\u2019re on macOS, we recommend <a href=\"https:\/\/docs.microsoft.com\/visualstudio\/releasenotes\/vs2019-mac-preview-relnotes\">installing the latest preview of Visual Studio 2019 for Mac 8.6<\/a>.<\/p>\n<h2>Upgrade an existing project<\/h2>\n<p>To upgrade an existing ASP.NET Core 5.0 preview3 app to ASP.NET Core 5.0 preview4:<\/p>\n<ul>\n<li>Update all Microsoft.AspNetCore.* package references to <code>5.0.0-preview.4.*<\/code>.<\/li>\n<li>Update all Microsoft.Extensions.* package references to <code>5.0.0-preview.4.*<\/code>.<\/li>\n<\/ul>\n<p>See the full list of <a href=\"https:\/\/github.com\/aspnet\/announcements\/issues?q=is%3Aopen+is%3Aissue+milestone%3A5.0+label%3A%22Breaking+change%22\">breaking changes<\/a> in ASP.NET Core 5.0.<\/p>\n<p>That\u2019s it! You should now be all set to use .NET 5 Preview 4.<\/p>\n<h2>What\u2019s new?<\/h2>\n<h3>Performance Improvements to HTTP\/2<\/h3>\n<p>By adding support for HPack dynamic compression of HTTP\/2 response headers in Kestrel, the 5.0.0-prevew4 release improves the performance of HTTP\/2. For more information on how HPACK helps save bandwidth and help reduce latency, we recommend reading <a href=\"https:\/\/blog.cloudflare.com\/hpack-the-silent-killer-feature-of-http-2\/\">this excellent write-up by the team at CloudFlare<\/a>.<\/p>\n<h3>Reduction in container image sizes<\/h3>\n<p>The canonical multi-stage Docker build for ASP.NET Core involves pulling both the SDK image and ASP.NET Core runtime image. By re-platting the SDK image upon the ASP.NET runtime image, we\u2019re sharing layers between the two images. This dramatically reduces the size of the aggregate images that you pull. For more information about the size improvements and other container enhancements, check out the <a href=\"https:\/\/devblogs.microsoft.com\/dotnet\/announcing-net-5-preview-4-and-our-journey-to-one-net\">.NET 5 Preview 4 blog post<\/a><\/p>\n<p>See the <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/5.0\">release notes<\/a> for additional details and known issues.<\/p>\n<h2>Give feedback<\/h2>\n<p>We hope you enjoy this release of ASP.NET Core in .NET 5! We are eager to hear about your experiences with this latest .NET 5 release. Let us know what you think by filing issues on <a href=\"https:\/\/github.com\/dotnet\/aspnetcore\/issues\">GitHub<\/a>.<\/p>\n<p>Thanks for trying out ASP.NET Core!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sourabh May 19th, 2020 .NET 5 Preview 4 is now available and is ready for evaluation! .NET 5 will be a current release. Get started To get started with ASP.NET Core in .NET 5.0 Preview4 install the .NET 5.0 SDK. If you\u2019re on Windows using Visual Studio, we recommend installing the latest preview of Visual [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":113169,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[66],"tags":[82],"class_list":["post-113168","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-microsoft-webdev","tag-asp-net"],"_links":{"self":[{"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/posts\/113168","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/comments?post=113168"}],"version-history":[{"count":0,"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/posts\/113168\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/media\/113169"}],"wp:attachment":[{"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/media?parent=113168"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/categories?post=113168"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/tags?post=113168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}