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.NET Core 3.1.300 SDK - May 19, 2020

.NET Core 3.1.300 SDK is available for download and usage in your environment. This release includes the .NET Core 3.1.4 and ASP.NET Core 3.1.4 Runtimes that shipped in May 12, 2020. This release also ships with [Visual Studio 16.6]

Your feedback is important and appreciated. We've created an issue at dotnet/core #4675 for your questions and comments.

Downloads

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 | ARM64 Alpine - x64 | ARM | ARM64 | x64 Alpine x641 | ARM1 | ARM641 | x64 Alpine | ARM64 Alpine -
RHEL6 - x64 - x64 -
Checksums SDK - Runtime - - -
  1. Includes the .NET Core and ASP.NET Core Runtimes
  2. For hosting stand-alone apps on Windows Servers. Includes the ASP.NET Core Module for IIS and can be installed separately on servers without installing .NET Core runtime.

Visual Studio Compatibility

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 16.4 3.1.104
Windows Visual Studio 2019 version 16.6 3.1.300
MacOS Visual Studio for Mac Visual Studio for Mac .NET Core Support

Docker Images

The .NET Core Docker images have been updated for this release. Details on our Docker versioning and how to work with the images can be seen in "Staying up-to-date with .NET Container Images".

The following repositories have been updated:

Notable Changes in 3.1.300 SDK

.NET Core 3.1.300 SDK release carries following new changes:

  • MSBuild now loads tasks with AssemblyLoadContext isolation, allowing tasks that have conflicting dependencies to be loaded in the same process microsoft/msbuild#4916.
  • .NET Core SDK 3.1.300 can build C++ Common Language Infrastructure (CLI) libraries.