The .NET Core 3.1.21 and .NET Core SDK 3.1.415 releases are available for download. The latest 3.1 release is always listed at .NET 3.1 Releases.
| SDK Installer1 | SDK Binaries1 | Runtime Installer | Runtime Binaries | ASP.NET Core Runtime | Windows Desktop Runtime | |
|---|---|---|---|---|---|---|
| Windows | x86 | x64 | x86 | x64 | Arm | x86 | x64 | x86 | x64 | Arm | x86 | x64 | Arm | Hosting Bundle2 |
x86 | x64 |
| macOS | x64 | x64 | x64 | x64 | x641 | - |
| Linux | Snap Install | x64 | Arm | Arm64 | x64 Alpine | - | x64 | Arm | Arm64 | x64 Alpine | Arm64 Alpine | x641 | Arm1 | Arm641 | x64 Alpine | Arm64 Alpine | - |
| Checksums | Checksums | Checksums | Checksums | Checksums | Checksums |
The .NET SDK includes a matching updated .NET Runtime. Downloading the Runtime or ASP.NET Core packages is not needed when installing the SDK.
You can check your .NET SDK version by running the following command. The example version shown is for this release.
$ dotnet --version
3.1.415
Visit .NET Documentation to learn about .NET, for building many different types of applications.
The .NET Docker images have been updated for this release. The .NET Docker samples show various ways to use .NET and Docker together.
The following repos have been updated.
Visual Studio compatibility: .NET Core 3.1 requires Visual Studio 2019 16.4 or above to take full advantage of all its features. .NET Core 3.1 won’t work properly in earlier versions of Visual Studio. See the following table to select the correct download.
| OS | Development Environment | .NET Core SDK |
|---|---|---|
| Windows | Visual Studio 2019 version 16.7 | 3.1.415 |
| macOS | Visual Studio for Mac | Visual Studio for Mac .NET Core Support |
.NET Core 3.1.21 release carries only non-security fixes.
Your feedback is important and appreciated. We’ve created an issue at dotnet/core #6884 for your questions and comments.
| Package name | Version |
|---|---|
| Microsoft.NETCore.App.Host.win-x86 | 3.1.21.nupkg |
| Microsoft.NETCore.App.Runtime.linux-musl-x64 | 3.1.21.nupkg |
| Microsoft.NETCore.App.Runtime.linux-x64 | 3.1.21.nupkg |
| runtime.win-arm64.Microsoft.NETCore.DotNetHostPolicy | 3.1.21.nupkg |
| runtime.win-x64.Microsoft.NETCore.DotNetHost | 3.1.21.nupkg |
| runtime.win-x86.Microsoft.NETCore.DotNetAppHost | 3.1.21.nupkg |
| runtime.linux-arm64.Microsoft.NETCore.DotNetHostResolver | 3.1.21.nupkg |
| runtime.linux-musl-arm64.Microsoft.NETCore.DotNetHostResolver | 3.1.21.nupkg |
| runtime.linux-musl-x64.Microsoft.NETCore.DotNetHost | 3.1.21.nupkg |
| runtime.linux-musl-x64.Microsoft.NETCore.DotNetHostResolver | 3.1.21.nupkg |
| runtime.linux-x64.Microsoft.NETCore.DotNetHostPolicy | 3.1.21.nupkg |
| runtime.osx-x64.Microsoft.NETCore.DotNetHost | 3.1.21.nupkg |
| runtime.osx-x64.Microsoft.NETCore.DotNetHostResolver | 3.1.21.nupkg |
| runtime.win-arm.Microsoft.NETCore.DotNetHost | 3.1.21.nupkg |
| runtime.linux-arm.Microsoft.NETCore.DotNetHost | 3.1.21.nupkg |
| Microsoft.NETCore.App.Host.linux-arm64 | 3.1.21.nupkg |
| Microsoft.NETCore.App.Runtime.linux-arm64 | 3.1.21.nupkg |
| Microsoft.NETCore.App.Runtime.win-x86 | 3.1.21.nupkg |
| runtime.linux-arm.Microsoft.NETCore.DotNetHostPolicy | 3.1.21.nupkg |
| runtime.win-arm.Microsoft.NETCore.DotNetHostPolicy | 3.1.21.nupkg |
| Microsoft.NETCore.App.Host.linux-arm | 3.1.21.nupkg |
| Microsoft.NETCore.App.Host.linux-x64 | 3.1.21.nupkg |
| Microsoft.NETCore.App.Runtime.win-arm64 | 3.1.21.nupkg |
| runtime.win-arm64.Microsoft.NETCore.DotNetHostResolver | 3.1.21.nupkg |
| runtime.win-x64.Microsoft.NETCore.DotNetAppHost | 3.1.21.nupkg |
| runtime.linux-arm64.Microsoft.NETCore.DotNetAppHost | 3.1.21.nupkg |
| runtime.linux-arm64.Microsoft.NETCore.DotNetHostPolicy | 3.1.21.nupkg |
| runtime.linux-musl-arm64.Microsoft.NETCore.DotNetAppHost | 3.1.21.nupkg |
| runtime.linux-musl-x64.Microsoft.NETCore.DotNetAppHost | 3.1.21.nupkg |
| runtime.linux-x64.Microsoft.NETCore.DotNetAppHost | 3.1.21.nupkg |
| Microsoft.WindowsDesktop.App.Runtime.win-x86 | 3.1.21.nupkg |
| Microsoft.NETCore.DotNetHostResolver | 3.1.21.nupkg |
| runtime.linux-arm.Microsoft.NETCore.DotNetAppHost | 3.1.21.nupkg |
| runtime.win-arm64.Microsoft.NETCore.DotNetAppHost | 3.1.21.nupkg |
| runtime.win-x86.Microsoft.NETCore.DotNetHost | 3.1.21.nupkg |
| runtime.linux-arm.Microsoft.NETCore.DotNetHostResolver | 3.1.21.nupkg |
| runtime.linux-arm64.Microsoft.NETCore.DotNetHost | 3.1.21.nupkg |
| runtime.linux-musl-arm64.Microsoft.NETCore.DotNetHost | 3.1.21.nupkg |
| runtime.linux-musl-arm64.Microsoft.NETCore.DotNetHostPolicy | 3.1.21.nupkg |
| runtime.linux-musl-x64.Microsoft.NETCore.DotNetHostPolicy | 3.1.21.nupkg |
| runtime.linux-x64.Microsoft.NETCore.DotNetHost | 3.1.21.nupkg |
| runtime.osx-x64.Microsoft.NETCore.DotNetAppHost | 3.1.21.nupkg |
| runtime.win-arm.Microsoft.NETCore.DotNetAppHost | 3.1.21.nupkg |
| Microsoft.NETCore.App.Host.linux-musl-x64 | 3.1.21.nupkg |
| Microsoft.NETCore.App.Host.win-arm | 3.1.21.nupkg |
| Microsoft.NETCore.App.Runtime.linux-musl-arm64 | 3.1.21.nupkg |
| Microsoft.NETCore.App.Runtime.win-arm | 3.1.21.nupkg |
| Microsoft.NETCore.App.Runtime.win-x64 | 3.1.21.nupkg |
| Microsoft.NETCore.DotNetHostPolicy | 3.1.21.nupkg |
| runtime.win-arm64.Microsoft.NETCore.DotNetHost | 3.1.21.nupkg |
| runtime.win-x64.Microsoft.NETCore.DotNetHostResolver | 3.1.21.nupkg |
| runtime.win-x86.Microsoft.NETCore.DotNetHostPolicy | 3.1.21.nupkg |
| runtime.linux-x64.Microsoft.NETCore.DotNetHostResolver | 3.1.21.nupkg |
| Microsoft.NETCore.App.Host.osx-x64 | 3.1.21.nupkg |
| Microsoft.NETCore.App.Host.win-x64 | 3.1.21.nupkg |
| Microsoft.NETCore.App.Host.win-arm64 | 3.1.21.nupkg |
| Microsoft.NETCore.App.Runtime.linux-arm | 3.1.21.nupkg |
| Microsoft.NETCore.App.Runtime.osx-x64 | 3.1.21.nupkg |
| Microsoft.NETCore.DotNetHost | 3.1.21.nupkg |
| runtime.win-arm.Microsoft.NETCore.DotNetHostResolver | 3.1.21.nupkg |
| runtime.win-x64.Microsoft.NETCore.DotNetHostPolicy | 3.1.21.nupkg |
| runtime.osx-x64.Microsoft.NETCore.DotNetHostPolicy | 3.1.21.nupkg |
| Microsoft.NETCore.App.Host.linux-musl-arm64 | 3.1.21.nupkg |
| Microsoft.NETCore.DotNetAppHost | 3.1.21.nupkg |
| Microsoft.WindowsDesktop.App.Runtime.win-x64 | 3.1.21.nupkg |
| runtime.win-x86.Microsoft.NETCore.DotNetHostResolver | 3.1.21.nupkg |
| Microsoft.AspNetCore.SpaServices.Extensions | 3.1.21.nupkg |
| Microsoft.AspNetCore.SignalR.Protocols.NewtonsoftJson | 3.1.21.nupkg |
| Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation | 3.1.21.nupkg |
| Microsoft.AspNetCore.SignalR.Common | 3.1.21.nupkg |
| Microsoft.AspNetCore.Owin | 3.1.21.nupkg |
| Microsoft.AspNetCore.DataProtection.Extensions | 3.1.21.nupkg |
| Microsoft.AspNetCore.Authentication.OpenIdConnect | 3.1.21.nupkg |
| Microsoft.AspNetCore.Authentication.JwtBearer | 3.1.21.nupkg |
| Microsoft.AspNetCore.App.Runtime.win-x86 | 3.1.21.nupkg |
| Microsoft.AspNetCore.App.Runtime.linux-musl-x64 | 3.1.21.nupkg |
| Microsoft.AspNetCore.Hosting.WindowsServices | 3.1.21.nupkg |
| Microsoft.AspNetCore.Mvc.NewtonsoftJson | 3.1.21.nupkg |
| Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv | 3.1.21.nupkg |
| Microsoft.AspNetCore.Authentication.Facebook | 3.1.21.nupkg |
| Microsoft.AspNetCore.AzureAppServices.HostingStartup | 3.1.21.nupkg |
| Microsoft.Extensions.Diagnostics.HealthChecks.EntityFrameworkCore | 3.1.21.nupkg |
| AspNetCoreRuntime.3.1.x64 | 3.1.21.nupkg |
| Microsoft.AspNetCore.MiddlewareAnalysis | 3.1.21.nupkg |
| Microsoft.AspNetCore.JsonPatch | 3.1.21.nupkg |
| Microsoft.AspNetCore.Identity.Specification.Tests | 3.1.21.nupkg |
| Microsoft.AspNetCore.Mvc.Testing | 3.1.21.nupkg |
| Microsoft.AspNetCore.SignalR.Specification.Tests | 3.1.21.nupkg |
| Microsoft.AspNetCore.SignalR.Protocols.MessagePack | 3.1.21.nupkg |
| Microsoft.AspNetCore.ApiAuthorization.IdentityServer | 3.1.21.nupkg |
| Microsoft.AspNetCore.Authentication.Twitter | 3.1.21.nupkg |
| Microsoft.AspNetCore.DataProtection | 3.1.21.nupkg |
| Microsoft.AspNetCore.ConcurrencyLimiter | 3.1.21.nupkg |
| Microsoft.AspNetCore.Components.Forms | 3.1.21.nupkg |
| Microsoft.DotNet.Web.ItemTemplates | 3.1.21.nupkg |
| Microsoft.DotNet.Web.Client.ItemTemplates | 3.1.21.nupkg |
| Microsoft.AspNetCore.App.Runtime.win-arm | 3.1.21.nupkg |
| Microsoft.AspNetCore.TestHost | 3.1.21.nupkg |
| dotnet-sql-cache | 3.1.21.nupkg |
| Microsoft.AspNetCore.App.Runtime.linux-x64 | 3.1.21.nupkg |
| Microsoft.AspNetCore.Metadata | 3.1.21.nupkg |
| Microsoft.AspNetCore.DataProtection.Abstractions | 3.1.21.nupkg |
| Microsoft.AspNetCore.Components.Authorization | 3.1.21.nupkg |
| Microsoft.Extensions.ApiDescription.Server | 3.1.21.nupkg |
| Microsoft.DotNet.Web.ProjectTemplates.3.1 | 3.1.21.nupkg |
| AspNetCoreRuntime.3.1.x86 | 3.1.21.nupkg |
| Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 | 3.1.21.nupkg |
| Microsoft.AspNetCore.App.Runtime.linux-arm64 | 3.1.21.nupkg |
| Microsoft.AspNetCore.Identity.UI | 3.1.21.nupkg |
| Microsoft.AspNetCore.Identity.EntityFrameworkCore | 3.1.21.nupkg |
| Microsoft.AspNetCore.Http.Connections.Common | 3.1.21.nupkg |
| Microsoft.AspNetCore.HeaderPropagation | 3.1.21.nupkg |
| Microsoft.AspNetCore.Http.Features | 3.1.21.nupkg |
| Microsoft.AspNetCore.SpaServices | 3.1.21.nupkg |
| Microsoft.AspNetCore.NodeServices | 3.1.21.nupkg |
| Microsoft.AspNetCore.Authentication.WsFederation | 3.1.21.nupkg |
| Microsoft.AspNetCore.DataProtection.EntityFrameworkCore | 3.1.21.nupkg |
| Microsoft.AspNetCore.Authentication.Certificate | 3.1.21.nupkg |
| Microsoft.AspNetCore.Authentication.AzureADB2C.UI | 3.1.21.nupkg |
| Microsoft.AspNetCore.DataProtection.AzureKeyVault | 3.1.21.nupkg |
| Microsoft.AspNetCore.AzureAppServices.SiteExtension | 3.1.21.nupkg |
| Microsoft.AspNetCore.Components.Analyzers | 3.1.21.nupkg |
| Microsoft.AspNetCore.Components | 3.1.21.nupkg |
| Microsoft.Extensions.Identity.Stores | 3.1.21.nupkg |
| Microsoft.DotNet.Web.Spa.ProjectTemplates.3.1 | 3.1.21.nupkg |
| Microsoft.AspNetCore.App.Runtime.win-arm64 | 3.1.21.nupkg |
| Microsoft.AspNetCore.App.Runtime.osx-x64 | 3.1.21.nupkg |
| Microsoft.AspNetCore.App.Runtime.linux-arm | 3.1.21.nupkg |
| Microsoft.AspNetCore.Http.Connections.Client | 3.1.21.nupkg |
| Microsoft.AspNetCore.SignalR.Client | 3.1.21.nupkg |
| Microsoft.AspNetCore.DataProtection.AzureStorage | 3.1.21.nupkg |
| Microsoft.AspNetCore.Authentication.MicrosoftAccount | 3.1.21.nupkg |
| Microsoft.AspNetCore.Authentication.Google | 3.1.21.nupkg |
| Microsoft.AspNetCore.Authentication.AzureAD.UI | 3.1.21.nupkg |
| Microsoft.AspNetCore.Cryptography.KeyDerivation | 3.1.21.nupkg |
| Microsoft.AspNetCore.Connections.Abstractions | 3.1.21.nupkg |
| Microsoft.AspNetCore.Cryptography.Internal | 3.1.21.nupkg |
| Microsoft.AspNetCore.AzureAppServicesIntegration | 3.1.21.nupkg |
| Microsoft.Extensions.Identity.Core | 3.1.21.nupkg |
| Microsoft.Extensions.ApiDescription.Client | 3.1.21.nupkg |
| Microsoft.dotnet-openapi | 3.1.21.nupkg |
| Microsoft.AspNetCore.DataProtection.StackExchangeRedis | 3.1.21.nupkg |
| Microsoft.AspNetCore.SignalR.StackExchangeRedis | 3.1.21.nupkg |
| Microsoft.AspNetCore.SignalR.Protocols.Json | 3.1.21.nupkg |
| Microsoft.AspNetCore.SignalR.Client.Core | 3.1.21.nupkg |
| Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore | 3.1.21.nupkg |
| Microsoft.AspNetCore.Authentication.Negotiate | 3.1.21.nupkg |
| Microsoft.AspNetCore.Authorization | 3.1.21.nupkg |
| Microsoft.AspNetCore.App.Runtime.win-x64 | 3.1.21.nupkg |
| Microsoft.AspNetCore.Components.Web | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.1.x | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.2.0 | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.3.1 | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ItemTemplates | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.2.1 | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.3.0 | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.2.2 | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ItemTemplates | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.1.x | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.2.2 | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.3.1 | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.2.1 | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.2.0 | 3.1.21.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.3.0 | 3.1.21.nupkg |
| System.Drawing.Common | 4.7.3.nupkg |
| Microsoft.EntityFrameworkCore.Relational | 3.1.21.nupkg |
| dotnet-ef | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.Abstractions | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.SqlServer.NetTopologySuite | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.Design | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.Proxies | 3.1.21.nupkg |
| Microsoft.Data.Sqlite | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.Cosmos | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.Specification.Tests | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.Sqlite.NetTopologySuite | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.Tools | 3.1.21.nupkg |
| Microsoft.Data.Sqlite.Core | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.Analyzers | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.Relational.Specification.Tests | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.Sqlite.Core | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.SqlServer | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.InMemory | 3.1.21.nupkg |
| Microsoft.EntityFrameworkCore.Sqlite | 3.1.21.nupkg |
| Microsoft.Extensions.FileProviders.Abstractions | 3.1.21.nupkg |
| Microsoft.Extensions.DependencyInjection | 3.1.21.nupkg |
| Microsoft.Extensions.Configuration.UserSecrets | 3.1.21.nupkg |
| Microsoft.Extensions.Configuration.FileExtensions | 3.1.21.nupkg |
| Microsoft.Extensions.Caching.StackExchangeRedis | 3.1.21.nupkg |
| Microsoft.Extensions.Configuration.Abstractions | 3.1.21.nupkg |
| Microsoft.Extensions.FileProviders.Embedded | 3.1.21.nupkg |
| Microsoft.Extensions.DiagnosticAdapter | 3.1.21.nupkg |
| Microsoft.Extensions.Configuration.Xml | 3.1.21.nupkg |
| Microsoft.Extensions.Configuration.KeyPerFile | 3.1.21.nupkg |
| Microsoft.Extensions.Configuration.Ini | 3.1.21.nupkg |
| Microsoft.Extensions.Caching.Abstractions | 3.1.21.nupkg |
| Microsoft.Extensions.WebEncoders | 3.1.21.nupkg |
| Microsoft.Extensions.FileSystemGlobbing | 3.1.21.nupkg |
| Microsoft.Extensions.Options.ConfigurationExtensions | 3.1.21.nupkg |
| Microsoft.Extensions.Logging.EventSource | 3.1.21.nupkg |
| Microsoft.Extensions.Logging.Console | 3.1.21.nupkg |
| Microsoft.JSInterop | 3.1.21.nupkg |
| Microsoft.Extensions.Diagnostics.HealthChecks | 3.1.21.nupkg |
| Microsoft.Extensions.DependencyInjection.Abstractions | 3.1.21.nupkg |
| Microsoft.Extensions.Configuration.NewtonsoftJson | 3.1.21.nupkg |
| Microsoft.Extensions.Configuration.Json | 3.1.21.nupkg |
| Microsoft.Extensions.Primitives | 3.1.21.nupkg |
| Microsoft.Extensions.Logging.TraceSource | 3.1.21.nupkg |
| Microsoft.Extensions.Hosting.Systemd | 3.1.21.nupkg |
| Microsoft.Extensions.Http.Polly | 3.1.21.nupkg |
| Microsoft.Extensions.Localization.Abstractions | 3.1.21.nupkg |
| Microsoft.Extensions.Configuration.EnvironmentVariables | 3.1.21.nupkg |
| Microsoft.Extensions.Configuration.AzureKeyVault | 3.1.21.nupkg |
| Microsoft.Extensions.Logging.AzureAppServices | 3.1.21.nupkg |
| Microsoft.Extensions.Localization | 3.1.21.nupkg |
| Microsoft.Extensions.Hosting.WindowsServices | 3.1.21.nupkg |
| Microsoft.Extensions.Diagnostics.HealthChecks.Abstractions | 3.1.21.nupkg |
| Microsoft.Extensions.DependencyInjection.Specification.Tests | 3.1.21.nupkg |
| Microsoft.Extensions.Configuration.CommandLine | 3.1.21.nupkg |
| Microsoft.Extensions.Configuration | 3.1.21.nupkg |
| Microsoft.Extensions.Options | 3.1.21.nupkg |
| Microsoft.Extensions.ObjectPool | 3.1.21.nupkg |
| Microsoft.Extensions.Logging.EventLog | 3.1.21.nupkg |
| Microsoft.Extensions.Logging.Debug | 3.1.21.nupkg |
| Microsoft.Extensions.Hosting | 3.1.21.nupkg |
| Microsoft.Extensions.Hosting.Abstractions | 3.1.21.nupkg |
| Microsoft.Extensions.Http | 3.1.21.nupkg |
| Microsoft.Extensions.Logging | 3.1.21.nupkg |
| Microsoft.Extensions.Configuration.Binder | 3.1.21.nupkg |
| Microsoft.Extensions.FileProviders.Composite | 3.1.21.nupkg |
| Microsoft.Extensions.Caching.SqlServer | 3.1.21.nupkg |
| Microsoft.Extensions.Caching.Memory | 3.1.21.nupkg |
| Microsoft.Extensions.Options.DataAnnotations | 3.1.21.nupkg |
| Microsoft.Extensions.FileProviders.Physical | 3.1.21.nupkg |
| Microsoft.Extensions.Logging.Configuration | 3.1.21.nupkg |
| Microsoft.Extensions.Logging.Abstractions | 3.1.21.nupkg |