.NET Core 3.1.25 and .NET Core SDK 3.1.419 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
3.1.419
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 | 3.1.419 |
| macOS | Visual Studio for Mac | Visual Studio for Mac .NET Core Support |
.NET Core 3.1.25 release carries security fixes.
Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 6.0, .NET 5.0 and .NET Core 3.1. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.
A vulnerability exists in .NET 6.0, .NET 5.0 and .NET Core 3.1 where a malicious client can manipulate cookies and cause a Denial of Service.
Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 6.0, .NET 5.0 and .NET Core 3.1. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.
A vulnerability exists in .NET 6.0, .NET 5.0 and .NET Core 3.1 where a malicious client can cause a denial of service when HTML forms are parsed.
Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 6.0, .NET 5.0 and .NET Core 3.1. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.
A vulnerability exists in .NET 6.0, .NET 5.0 and .NET Core 3.1 where a malicious client can cause a Denial of Service via excess memory allocations through HttpClient.
Your feedback is important and appreciated. We’ve created an issue at dotnet/core #7447 for your questions and comments.
| Package name | Version |
|---|---|
| runtime.linux-musl-arm64.Microsoft.NETCore.DotNetHost | 3.1.25.nupkg |
| runtime.linux-x64.Microsoft.NETCore.DotNetHostPolicy | 3.1.25.nupkg |
| runtime.linux-x64.Microsoft.NETCore.DotNetHostResolver | 3.1.25.nupkg |
| Microsoft.NETCore.App.Host.linux-arm | 3.1.25.nupkg |
| Microsoft.NETCore.App.Host.linux-arm64 | 3.1.25.nupkg |
| Microsoft.NETCore.App.Host.win-arm | 3.1.25.nupkg |
| Microsoft.NETCore.DotNetAppHost | 3.1.25.nupkg |
| Microsoft.NETCore.DotNetHostPolicy | 3.1.25.nupkg |
| runtime.win-arm64.Microsoft.NETCore.DotNetAppHost | 3.1.25.nupkg |
| runtime.linux-arm64.Microsoft.NETCore.DotNetHost | 3.1.25.nupkg |
| runtime.linux-arm64.Microsoft.NETCore.DotNetHostPolicy | 3.1.25.nupkg |
| runtime.linux-musl-arm64.Microsoft.NETCore.DotNetAppHost | 3.1.25.nupkg |
| runtime.linux-musl-arm64.Microsoft.NETCore.DotNetHostResolver | 3.1.25.nupkg |
| runtime.linux-musl-x64.Microsoft.NETCore.DotNetAppHost | 3.1.25.nupkg |
| runtime.linux-x64.Microsoft.NETCore.DotNetAppHost | 3.1.25.nupkg |
| runtime.osx-x64.Microsoft.NETCore.DotNetAppHost | 3.1.25.nupkg |
| runtime.osx-x64.Microsoft.NETCore.DotNetHostPolicy | 3.1.25.nupkg |
| runtime.win-arm.Microsoft.NETCore.DotNetHost | 3.1.25.nupkg |
| Microsoft.NETCore.App.Host.linux-x64 | 3.1.25.nupkg |
| Microsoft.NETCore.App.Host.win-x86 | 3.1.25.nupkg |
| Microsoft.NETCore.App.Runtime.linux-musl-x64 | 3.1.25.nupkg |
| runtime.win-arm.Microsoft.NETCore.DotNetHostResolver | 3.1.25.nupkg |
| runtime.win-arm64.Microsoft.NETCore.DotNetHostResolver | 3.1.25.nupkg |
| runtime.win-x64.Microsoft.NETCore.DotNetHost | 3.1.25.nupkg |
| runtime.win-x86.Microsoft.NETCore.DotNetHostPolicy | 3.1.25.nupkg |
| runtime.osx-x64.Microsoft.NETCore.DotNetHost | 3.1.25.nupkg |
| Microsoft.NETCore.App.Runtime.linux-arm64 | 3.1.25.nupkg |
| Microsoft.NETCore.App.Host.win-x64 | 3.1.25.nupkg |
| Microsoft.NETCore.App.Runtime.win-x86 | 3.1.25.nupkg |
| Microsoft.NETCore.DotNetHost | 3.1.25.nupkg |
| Microsoft.NETCore.DotNetHostResolver | 3.1.25.nupkg |
| runtime.win-arm.Microsoft.NETCore.DotNetHostPolicy | 3.1.25.nupkg |
| runtime.win-arm64.Microsoft.NETCore.DotNetHost | 3.1.25.nupkg |
| runtime.win-x64.Microsoft.NETCore.DotNetAppHost | 3.1.25.nupkg |
| runtime.win-x64.Microsoft.NETCore.DotNetHostPolicy | 3.1.25.nupkg |
| runtime.linux-arm.Microsoft.NETCore.DotNetHostResolver | 3.1.25.nupkg |
| runtime.linux-arm64.Microsoft.NETCore.DotNetHostResolver | 3.1.25.nupkg |
| runtime.linux-musl-arm64.Microsoft.NETCore.DotNetHostPolicy | 3.1.25.nupkg |
| runtime.linux-musl-x64.Microsoft.NETCore.DotNetHost | 3.1.25.nupkg |
| Microsoft.WindowsDesktop.App.Runtime.win-x86 | 3.1.25.nupkg |
| runtime.osx-x64.Microsoft.NETCore.DotNetHostResolver | 3.1.25.nupkg |
| runtime.win-arm.Microsoft.NETCore.DotNetAppHost | 3.1.25.nupkg |
| runtime.linux-arm.Microsoft.NETCore.DotNetHost | 3.1.25.nupkg |
| runtime.linux-arm.Microsoft.NETCore.DotNetAppHost | 3.1.25.nupkg |
| Microsoft.Extensions.DependencyModel | 3.1.25.nupkg |
| Microsoft.NETCore.App.Host.linux-musl-arm64 | 3.1.25.nupkg |
| Microsoft.NETCore.App.Host.linux-musl-x64 | 3.1.25.nupkg |
| Microsoft.NETCore.App.Runtime.linux-musl-arm64 | 3.1.25.nupkg |
| Microsoft.NETCore.App.Runtime.osx-x64 | 3.1.25.nupkg |
| Microsoft.NETCore.App.Runtime.win-x64 | 3.1.25.nupkg |
| runtime.win-arm64.Microsoft.NETCore.DotNetHostPolicy | 3.1.25.nupkg |
| runtime.win-x86.Microsoft.NETCore.DotNetHost | 3.1.25.nupkg |
| runtime.win-x86.Microsoft.NETCore.DotNetHostResolver | 3.1.25.nupkg |
| runtime.linux-arm.Microsoft.NETCore.DotNetHostPolicy | 3.1.25.nupkg |
| runtime.linux-arm64.Microsoft.NETCore.DotNetAppHost | 3.1.25.nupkg |
| runtime.linux-musl-x64.Microsoft.NETCore.DotNetHostPolicy | 3.1.25.nupkg |
| runtime.linux-musl-x64.Microsoft.NETCore.DotNetHostResolver | 3.1.25.nupkg |
| runtime.linux-x64.Microsoft.NETCore.DotNetHost | 3.1.25.nupkg |
| Microsoft.NETCore.App.Runtime.linux-arm | 3.1.25.nupkg |
| Microsoft.NETCore.App.Host.osx-x64 | 3.1.25.nupkg |
| Microsoft.NETCore.App.Host.win-arm64 | 3.1.25.nupkg |
| Microsoft.NETCore.App.Runtime.linux-x64 | 3.1.25.nupkg |
| Microsoft.NETCore.App.Runtime.win-arm | 3.1.25.nupkg |
| Microsoft.NETCore.App.Runtime.win-arm64 | 3.1.25.nupkg |
| Microsoft.WindowsDesktop.App.Runtime.win-x64 | 3.1.25.nupkg |
| runtime.win-x64.Microsoft.NETCore.DotNetHostResolver | 3.1.25.nupkg |
| runtime.win-x86.Microsoft.NETCore.DotNetAppHost | 3.1.25.nupkg |
| Microsoft.Extensions.Identity.Stores | 3.1.25.nupkg |
| Microsoft.Extensions.Diagnostics.HealthChecks.EntityFrameworkCore | 3.1.25.nupkg |
| Microsoft.Extensions.ApiDescription.Client | 3.1.25.nupkg |
| Microsoft.AspNetCore.App.Runtime.linux-arm | 3.1.25.nupkg |
| Microsoft.AspNetCore.App.Runtime.linux-musl-x64 | 3.1.25.nupkg |
| Microsoft.AspNetCore.Identity.UI | 3.1.25.nupkg |
| Microsoft.AspNetCore.Metadata | 3.1.25.nupkg |
| Microsoft.AspNetCore.SignalR.Protocols.MessagePack | 3.1.25.nupkg |
| Microsoft.AspNetCore.Mvc.Testing | 3.1.25.nupkg |
| Microsoft.AspNetCore.SignalR.Client | 3.1.25.nupkg |
| Microsoft.AspNetCore.SignalR.Common | 3.1.25.nupkg |
| Microsoft.AspNetCore.HeaderPropagation | 3.1.25.nupkg |
| Microsoft.AspNetCore.Authentication.JwtBearer | 3.1.25.nupkg |
| Microsoft.AspNetCore.DataProtection.Abstractions | 3.1.25.nupkg |
| Microsoft.Extensions.Identity.Core | 3.1.25.nupkg |
| Microsoft.Extensions.ApiDescription.Server | 3.1.25.nupkg |
| Microsoft.DotNet.Web.ItemTemplates | 3.1.25.nupkg |
| Microsoft.DotNet.Web.Client.ItemTemplates | 3.1.25.nupkg |
| Microsoft.AspNetCore.App.Runtime.win-arm | 3.1.25.nupkg |
| Microsoft.dotnet-openapi | 3.1.25.nupkg |
| Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 | 3.1.25.nupkg |
| Microsoft.AspNetCore.App.Runtime.linux-arm64 | 3.1.25.nupkg |
| Microsoft.AspNetCore.NodeServices | 3.1.25.nupkg |
| Microsoft.AspNetCore.SignalR.Specification.Tests | 3.1.25.nupkg |
| Microsoft.AspNetCore.SignalR.Client.Core | 3.1.25.nupkg |
| Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv | 3.1.25.nupkg |
| Microsoft.AspNetCore.Owin | 3.1.25.nupkg |
| Microsoft.AspNetCore.App.Runtime.win-x86 | 3.1.25.nupkg |
| Microsoft.AspNetCore.AzureAppServices.SiteExtension | 3.1.25.nupkg |
| Microsoft.AspNetCore.Components.Authorization | 3.1.25.nupkg |
| Microsoft.AspNetCore.Components | 3.1.25.nupkg |
| AspNetCoreRuntime.3.1.x86 | 3.1.25.nupkg |
| Microsoft.AspNetCore.ApiAuthorization.IdentityServer | 3.1.25.nupkg |
| Microsoft.AspNetCore.MiddlewareAnalysis | 3.1.25.nupkg |
| Microsoft.AspNetCore.JsonPatch | 3.1.25.nupkg |
| Microsoft.AspNetCore.Http.Connections.Client | 3.1.25.nupkg |
| Microsoft.AspNetCore.Identity.EntityFrameworkCore | 3.1.25.nupkg |
| Microsoft.AspNetCore.SpaServices.Extensions | 3.1.25.nupkg |
| Microsoft.AspNetCore.SignalR.Protocols.NewtonsoftJson | 3.1.25.nupkg |
| Microsoft.AspNetCore.SignalR.Protocols.Json | 3.1.25.nupkg |
| Microsoft.AspNetCore.Authorization | 3.1.25.nupkg |
| Microsoft.AspNetCore.Authentication.Twitter | 3.1.25.nupkg |
| Microsoft.AspNetCore.Authentication.MicrosoftAccount | 3.1.25.nupkg |
| Microsoft.AspNetCore.Authentication.AzureAD.UI | 3.1.25.nupkg |
| Microsoft.AspNetCore.Authentication.Google | 3.1.25.nupkg |
| Microsoft.AspNetCore.Cryptography.Internal | 3.1.25.nupkg |
| Microsoft.AspNetCore.Cryptography.KeyDerivation | 3.1.25.nupkg |
| Microsoft.AspNetCore.ConcurrencyLimiter | 3.1.25.nupkg |
| Microsoft.AspNetCore.TestHost | 3.1.25.nupkg |
| Microsoft.AspNetCore.App.Runtime.win-arm64 | 3.1.25.nupkg |
| Microsoft.AspNetCore.App.Runtime.osx-x64 | 3.1.25.nupkg |
| Microsoft.AspNetCore.App.Runtime.linux-x64 | 3.1.25.nupkg |
| Microsoft.AspNetCore.Identity.Specification.Tests | 3.1.25.nupkg |
| Microsoft.AspNetCore.Http.Connections.Common | 3.1.25.nupkg |
| Microsoft.AspNetCore.Hosting.WindowsServices | 3.1.25.nupkg |
| Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore | 3.1.25.nupkg |
| Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation | 3.1.25.nupkg |
| Microsoft.AspNetCore.DataProtection.EntityFrameworkCore | 3.1.25.nupkg |
| Microsoft.AspNetCore.DataProtection.Extensions | 3.1.25.nupkg |
| Microsoft.AspNetCore.Authentication.OpenIdConnect | 3.1.25.nupkg |
| Microsoft.AspNetCore.Authentication.Facebook | 3.1.25.nupkg |
| Microsoft.AspNetCore.Authentication.AzureADB2C.UI | 3.1.25.nupkg |
| Microsoft.AspNetCore.DataProtection | 3.1.25.nupkg |
| Microsoft.AspNetCore.Components.Web | 3.1.25.nupkg |
| Microsoft.AspNetCore.AzureAppServicesIntegration | 3.1.25.nupkg |
| Microsoft.DotNet.Web.ProjectTemplates.3.1 | 3.1.25.nupkg |
| Microsoft.DotNet.Web.Spa.ProjectTemplates.3.1 | 3.1.25.nupkg |
| AspNetCoreRuntime.3.1.x64 | 3.1.25.nupkg |
| dotnet-sql-cache | 3.1.25.nupkg |
| Microsoft.AspNetCore.Mvc.NewtonsoftJson | 3.1.25.nupkg |
| Microsoft.AspNetCore.Http.Features | 3.1.25.nupkg |
| Microsoft.AspNetCore.SpaServices | 3.1.25.nupkg |
| Microsoft.AspNetCore.SignalR.StackExchangeRedis | 3.1.25.nupkg |
| Microsoft.AspNetCore.DataProtection.StackExchangeRedis | 3.1.25.nupkg |
| Microsoft.AspNetCore.App.Runtime.win-x64 | 3.1.25.nupkg |
| Microsoft.AspNetCore.Authentication.Negotiate | 3.1.25.nupkg |
| Microsoft.AspNetCore.AzureAppServices.HostingStartup | 3.1.25.nupkg |
| Microsoft.AspNetCore.Authentication.Certificate | 3.1.25.nupkg |
| Microsoft.AspNetCore.Authentication.WsFederation | 3.1.25.nupkg |
| Microsoft.AspNetCore.Connections.Abstractions | 3.1.25.nupkg |
| Microsoft.AspNetCore.Components.Forms | 3.1.25.nupkg |
| Microsoft.AspNetCore.Components.Analyzers | 3.1.25.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.2.1 | 3.1.25.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.3.1 | 3.1.25.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.2.0 | 3.1.25.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.3.0 | 3.1.25.nupkg |
| Microsoft.DotNet.Common.ItemTemplates | 3.1.25.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.2.2 | 3.1.25.nupkg |
| Microsoft.DotNet.Common.ProjectTemplates.1.x | 3.1.25.nupkg |
| Microsoft.AspNetCore.Razor.Language | 3.1.25.nupkg |
| Microsoft.AspNetCore.Mvc.Razor.Extensions | 3.1.25.nupkg |
| Microsoft.NET.Sdk.Razor | 3.1.25.nupkg |
| Microsoft.CodeAnalysis.Razor | 3.1.25.nupkg |
| Microsoft.Data.Sqlite | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.SqlServer.NetTopologySuite | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.Specification.Tests | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.Design | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.Sqlite.Core | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.Tools | 3.1.25.nupkg |
| Microsoft.Data.Sqlite.Core | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.Relational | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.Sqlite.NetTopologySuite | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.SqlServer | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.Abstractions | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.Cosmos | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.Proxies | 3.1.25.nupkg |
| dotnet-ef | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.Analyzers | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.InMemory | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.Relational.Specification.Tests | 3.1.25.nupkg |
| Microsoft.EntityFrameworkCore.Sqlite | 3.1.25.nupkg |
| Microsoft.Extensions.DependencyInjection.Specification.Tests | 3.1.25.nupkg |
| Microsoft.Extensions.Configuration.Xml | 3.1.25.nupkg |
| Microsoft.Extensions.Configuration.Json | 3.1.25.nupkg |
| Microsoft.Extensions.Configuration | 3.1.25.nupkg |
| Microsoft.Extensions.Primitives | 3.1.25.nupkg |
| Microsoft.Extensions.Options | 3.1.25.nupkg |
| Microsoft.Extensions.Logging.TraceSource | 3.1.25.nupkg |
| Microsoft.Extensions.Logging.EventLog | 3.1.25.nupkg |
| Microsoft.Extensions.Hosting.Abstractions | 3.1.25.nupkg |
| Microsoft.Extensions.Diagnostics.HealthChecks | 3.1.25.nupkg |
| Microsoft.Extensions.DiagnosticAdapter | 3.1.25.nupkg |
| Microsoft.Extensions.Configuration.NewtonsoftJson | 3.1.25.nupkg |
| Microsoft.Extensions.Configuration.KeyPerFile | 3.1.25.nupkg |
| Microsoft.Extensions.Configuration.Binder | 3.1.25.nupkg |
| Microsoft.Extensions.Caching.SqlServer | 3.1.25.nupkg |
| Microsoft.Extensions.WebEncoders | 3.1.25.nupkg |
| Microsoft.Extensions.ObjectPool | 3.1.25.nupkg |
| Microsoft.Extensions.Logging.Console | 3.1.25.nupkg |
| Microsoft.Extensions.Logging.Debug | 3.1.25.nupkg |
| Microsoft.Extensions.Logging.AzureAppServices | 3.1.25.nupkg |
| Microsoft.Extensions.Localization | 3.1.25.nupkg |
| Microsoft.Extensions.Logging | 3.1.25.nupkg |
| Microsoft.JSInterop | 3.1.25.nupkg |
| Microsoft.Extensions.Diagnostics.HealthChecks.Abstractions | 3.1.25.nupkg |
| Microsoft.Extensions.DependencyInjection.Abstractions | 3.1.25.nupkg |
| Microsoft.Extensions.Configuration.UserSecrets | 3.1.25.nupkg |
| Microsoft.Extensions.Configuration.CommandLine | 3.1.25.nupkg |
| Microsoft.Extensions.Caching.Abstractions | 3.1.25.nupkg |
| Microsoft.Extensions.Configuration.Abstractions | 3.1.25.nupkg |
| Microsoft.Extensions.Caching.Memory | 3.1.25.nupkg |
| Microsoft.Extensions.Logging.Configuration | 3.1.25.nupkg |
| Microsoft.Extensions.Http.Polly | 3.1.25.nupkg |
| Microsoft.Extensions.Localization.Abstractions | 3.1.25.nupkg |
| Microsoft.Extensions.DependencyInjection | 3.1.25.nupkg |
| Microsoft.Extensions.Configuration.FileExtensions | 3.1.25.nupkg |
| Microsoft.Extensions.Configuration.EnvironmentVariables | 3.1.25.nupkg |
| Microsoft.Extensions.Options.ConfigurationExtensions | 3.1.25.nupkg |
| Microsoft.Extensions.Logging.EventSource | 3.1.25.nupkg |
| Microsoft.Extensions.FileProviders.Physical | 3.1.25.nupkg |
| Microsoft.Extensions.Logging.Abstractions | 3.1.25.nupkg |
| Microsoft.Extensions.FileProviders.Abstractions | 3.1.25.nupkg |
| Microsoft.Extensions.Configuration.Ini | 3.1.25.nupkg |
| Microsoft.Extensions.FileProviders.Composite | 3.1.25.nupkg |
| Microsoft.Extensions.Caching.StackExchangeRedis | 3.1.25.nupkg |
| Microsoft.Extensions.FileProviders.Embedded | 3.1.25.nupkg |
| Microsoft.Extensions.FileSystemGlobbing | 3.1.25.nupkg |
| Microsoft.Extensions.Options.DataAnnotations | 3.1.25.nupkg |
| Microsoft.Extensions.Hosting | 3.1.25.nupkg |
| Microsoft.Extensions.Hosting.Systemd | 3.1.25.nupkg |
| Microsoft.Extensions.Http | 3.1.25.nupkg |
| Microsoft.Extensions.Hosting.WindowsServices | 3.1.25.nupkg |