{"id":32137,"date":"2021-03-09T11:10:04","date_gmt":"2021-03-09T18:10:04","guid":{"rendered":"https:\/\/devblogs.microsoft.com\/dotnet\/?p=32137"},"modified":"2021-03-12T10:50:16","modified_gmt":"2021-03-12T17:50:16","slug":"net-march-2021","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/dotnet\/net-march-2021\/","title":{"rendered":".NET March 2021 Updates \u2013 5.0.4, 3.1.13, 2.1.26"},"content":{"rendered":"<p>Today, we are releasing the <a href=\"https:\/\/github.com\/dotnet\/announcements\/issues\/177\">.NET March 2021 Updates<\/a>. These updates contains reliability and security improvements. See the individual release notes for details on updated packages.<\/p>\n<p class=\"\">You can download <a href=\"https:\/\/dotnet.microsoft.com\/download\/dotnet\/5.0\">5.0.4<\/a>\u00a0,<a href=\"https:\/\/dotnet.microsoft.com\/download\/dotnet-core\/3.1\"> 3.1.13<\/a>, <a href=\"https:\/\/dotnet.microsoft.com\/download\/dotnet-core\/2.1\">2.1.26<\/a>\u00a0versions for Windows, macOS, and Linux, for x86, x64, Arm32, and Arm64.<\/p>\n<ul>\n<li>Installers and binaries: <a href=\"https:\/\/dotnet.microsoft.com\/download\/dotnet\/5.0\">5.0.4<\/a>\u00a0| <a href=\"https:\/\/dotnet.microsoft.com\/download\/dotnet-core\/3.1\">3.1.13<\/a>\u00a0| <a href=\"https:\/\/dotnet.microsoft.com\/download\/dotnet-core\/2.1\">2.1.26<\/a><\/li>\n<li class=\"\">Release notes: <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/5.0\/5.0.4\/5.0.4.md\">5.0.4<\/a>\u00a0| <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/3.1\/3.1.13\/3.1.13.md\">3.1.13<\/a> | <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/2.1\/2.1.26\/2.1.26.md\">2.1.26<\/a><\/li>\n<li class=\"\"><a href=\"https:\/\/hub.docker.com\/_\/microsoft-dotnet\">Container images<\/a><\/li>\n<li class=\"\">Linux packages: <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/5.0\/5.0.4\/5.0.4-install-instructions.md\">5.0.4<\/a>\u00a0| <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/3.1\/3.1.13\/3.1.13-install-instructions.md\">3.1.13<\/a>\u00a0| <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/2.1\/2.1.26\/2.1.26-install-instructions.md\">2.1.26<\/a><\/li>\n<li><a href=\"https:\/\/github.com\/dotnet\/core\/issues\/6035\" target=\"_blank\" rel=\"noopener noreferrer\">Release feedback\/issues<\/a><\/li>\n<li class=\"\">Known issues: <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/5.0\/5.0-known-issues.md\">5.0<\/a> | <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/3.1\/3.1-known-issues.md\">3.1<\/a> | <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/2.1\/2.1.0-known-issues.md\">2.1<\/a><\/li>\n<\/ul>\n<div>\n<h2 id=\"security\">Security<\/h2>\n<div>\n<h3><span style=\"font-size: 18pt;\"><a href=\"https:\/\/portal.msrc.microsoft.com\/en-us\/security-guidance\/advisory\/CVE-2021-26701\">CVE-2021-26701: .NET Core Remote Code Execution Vulnerability<\/a><\/span><\/h3>\n<\/div>\n<div>\n<div>\n<div style=\"text-align: left;\">Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 5.0, .NET Core 3.1, and .NET Core 2.1.<\/div>\n<div style=\"text-align: left;\">This\u00a0advisory\u00a0also\u00a0provides\u00a0guidance\u00a0on\u00a0what\u00a0developers\u00a0can\u00a0do\u00a0to\u00a0update\u00a0their\u00a0applications\u00a0to\u00a0remove\u00a0this\u00a0vulnerability.<\/div>\n<div style=\"text-align: left;\"><\/div>\n<div style=\"text-align: left;\">A\u00a0remote\u00a0code\u00a0execution\u00a0vulnerability\u00a0exists\u00a0in\u00a0.NET\u00a05\u00a0and\u00a0.NET\u00a0Core\u00a0due\u00a0to\u00a0how\u00a0text\u00a0encoding\u00a0is\u00a0performed.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div>\n<div>\n<div><span style=\"color: inherit; font-family: inherit; font-size: 3rem;\">Improvements<\/span><\/div>\n<\/div>\n<\/div>\n<div>\n<ul>\n<li>Runtime : <a href=\"https:\/\/github.com\/dotnet\/runtime\/issues?q=milestone%3A5.0.4+is%3Aclosed+label%3Aservicing-approved\">5.0.4<\/a><\/li>\n<li>ASP.NET Core : <a href=\"https:\/\/github.com\/dotnet\/aspnetcore\/issues?q=milestone%3A5.0.4+is%3Aclosed+label%3Aservicing-approved\">5.0.4<\/a> | <a href=\"https:\/\/github.com\/dotnet\/aspnetcore\/pulls?q=milestone%3A3.1.13+is%3Aclosed+label%3Aservicing-approved\">3.1.12<\/a><\/li>\n<li>EntityFramework Core : <a href=\"https:\/\/github.com\/dotnet\/efcore\/issues?q=milestone%3A5.0.4+is%3Aclosed+label%3Aservicing-approved\">5.0.4<\/a><\/li>\n<li>Winforms: <a href=\"https:\/\/github.com\/dotnet\/winforms\/issues?q=milestone%3A5.0.4+is%3Aclosed+label%3Aservicing-approved\">5.0.4<\/a><\/li>\n<li>Setup: <a href=\"https:\/\/github.com\/dotnet\/core-setup\/pulls?q=milestone%3A2.1.26+is%3Aclosed+label%3Aservicing-approved\">2.1.26<\/a><\/li>\n<li>WPF: <a href=\"https:\/\/github.com\/dotnet\/wpf\/issues?q=milestone%3A5.0.4+is%3Aclosed+label%3Aservicing-approved\">5.0.4<\/a> | <a href=\"https:\/\/github.com\/dotnet\/wpf\/pulls?q=milestone%3A3.1.13+is%3Aclosed+label%3Aservicing-approved\">3.1.13<\/a><\/li>\n<\/ul>\n<h2 aria-level=\"2\">Visual Studio<\/h2>\n<p>See release notes for Visual Studio compatibility for <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/2.1\/2.1.25\/2.1.25.md#visual-studio-compatibility\">.NET Core 2.1<\/a> and <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/3.1\/3.1.12\/3.1.12.md#visual-studio-compatibility\">.NET Core 3.1<\/a> and <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/5.0\/5.0.3\/5.0.3.md#visual-studio-compatibility\">.NET 5.0<\/a>.<\/p>\n<h2>OS Lifecycle update<\/h2>\n<div>Alpine 3.13 is now supported with the .NET Core 3.1.13 and .NET Core 2.1.26 update. <span style=\"font-size: 1rem;\">The operating system support pages for <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/3.1\/3.1-supported-os.md\">.NET Core 3.1<\/a> and <a href=\"https:\/\/github.com\/dotnet\/core\/blob\/master\/release-notes\/2.1\/2.1-supported-os.md\">.NET Core 2.1<\/a> has been updated to reflect that.<\/span><\/div>\n<\/div>\n<div><\/div>\n<h2><\/h2>\n<h2>Blazor WebAssembly 3.2 end of support and project template removal<\/h2>\n<div><span style=\"font-size: 1rem;\">Blazor WebAssembly 3.2 has reached end of support and the corresponding project template has been removed from this .NET Core 3.1 SDK update. Blazor WebAssembly 3.2 was <\/span><a style=\"background-color: #f7f7f9; font-size: 1rem;\" href=\"https:\/\/devblogs.microsoft.com\/aspnet\/blazor-webassembly-3-2-0-now-available\/#lts-or-current\">released\u00a0<\/a><span style=\"font-size: 1rem;\">in May 2020 as a Current release. Support for Current releases ends three months after the next Current release, which in this case was .NET 5 in November 2020. Apps using Blazor WebAssembly 3.2 should be <\/span><a style=\"background-color: #f7f7f9; font-size: 1rem;\" href=\"https:\/\/docs.microsoft.com\/aspnet\/core\/migration\/31-to-50#update-blazor-webassembly-projects\">updated<\/a><span style=\"font-size: 1rem;\">\u00a0to use .NET 5 to stay in support.<\/span><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Today, we are releasing the .NET March 2021 Updates. These updates contains reliability and security improvements. See the individual release notes for details on updated packages. You can download 5.0.4\u00a0, 3.1.13, 2.1.26\u00a0versions for Windows, macOS, and Linux, for x86, x64, Arm32, and Arm64. Installers and binaries: 5.0.4\u00a0| 3.1.13\u00a0| 2.1.26 Release notes: 5.0.4\u00a0| 3.1.13 | 2.1.26 [&hellip;]<\/p>\n","protected":false},"author":7455,"featured_media":58792,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[685,196],"tags":[],"class_list":["post-32137","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dotnet","category-dotnet-core"],"acf":[],"blog_post_summary":"<p>Today, we are releasing the .NET March 2021 Updates. These updates contains reliability and security improvements. See the individual release notes for details on updated packages. You can download 5.0.4\u00a0, 3.1.13, 2.1.26\u00a0versions for Windows, macOS, and Linux, for x86, x64, Arm32, and Arm64. Installers and binaries: 5.0.4\u00a0| 3.1.13\u00a0| 2.1.26 Release notes: 5.0.4\u00a0| 3.1.13 | 2.1.26 [&hellip;]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/posts\/32137","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\/7455"}],"replies":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/comments?post=32137"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/posts\/32137\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/media\/58792"}],"wp:attachment":[{"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/media?parent=32137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/categories?post=32137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/dotnet\/wp-json\/wp\/v2\/tags?post=32137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}