Versions of .NET

Release 3.1.0

  • Released on 2019-12-03
  • Runtime 3.1.0
  • SDK 3.1.100
  • ASP.NET Runtime 3.1.0
  • Windows Desktop Runtime 3.1.0

SDK 3.1.100

  • Visual Studio 16.4.0
  • C# 8.0
  • F# 4.7

Release notes


.NET Core 3.1.0 - December 3, 2019

.NET Core 3.1.0 is available for download and usage in your environment. This release includes .NET Core 3.1.0 and .NET Core SDK 3.1.100.

The .NET Core SDK 3.1.100 includes .NET Core 3.1 Runtime so downloading the runtime packages separately is not needed when installing the SDK. After installing the .NET Core SDK 3.1.100, the following command will show that you're running version 3.1.100 of the tools.

dotnet --version

Your feedback is important and appreciated. We've created an issue at dotnet/core #3950 for your questions and comments.

Blog Roundup


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 x641 | ARM1 | ARM641 | x64 Alpine1 -
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 to take full advantage of all its features. .NET Core 3.1 will not work properly in earlier versions of Visual Studio.

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 repos have been updated

Notable Changes in 3.1.0

Here is list of some of the additions and updates we're excited to bring in 3.1. See the .NET and ASP.NET Core blogs for additional details.