Versions of .NET

Release 3.0.0-preview6

  • Released on 2019-06-12
  • Runtime 3.0.0-preview6-27804-01
  • SDK 3.0.100-preview6-012264
  • ASP.NET Runtime 3.0.0-preview6-27804-01

SDK 3.0.100-preview6-012264

  • Visual Studio 2019 (v16.2, latest preview)
  • C# 8.0-preview
  • F# 4.6

Release notes


.NET Core 3.0.0 Preview 6 - June 12, 2019

.NET Core 3.0.0 Preview 6 is available for download and usage in your environment. This release includes .NET Core 3.0.0 Preview 6 and .NET Core SDK 3.0.100 Preview 6.

Visual Studio compatibility: If Visual Studio is your preferred development environment, you will need the latest preview of Visual Studio 2019 (v16.2) to take full advantage of .NET Core 3.0 Previews. Visit Visual Studio Preview to learn about VS previews.

Blog Roundup

[Will be published at 10 am pacific time]

The .NET Core SDK 3.0.100 Preview 6 includes .NET Core 3.0 Runtime so downloading the runtime packages separately is not needed when installing the SDK. After installing the .NET Core SDK 3.0.100 preview, the following command will show that you're running version 3.0.100-preview6-012264 of the tools.

dotnet --version

Your feedback is important and appreciated. We've created an issue at dotnet/core #2859 for your questions and comments.


SDK Installer1 SDK Binaries1 Runtime Installer Runtime Binaries ASP.NET Core Runtime
Windows x86 | x64 x86 | x64 | ARM x86 | x64 x86 | x64 | ARM x86 | x64 | ARM |
Hosting Bundle2
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 - -
Symbols See list below3 - See list below3 - See list below3
  1. Includes the .NET Core and ASP.NET Core Runtimes
  2. Note, the Hosting Bundle has an issue with the ASP.NET Core Module. If you would like to install the ASP.NET Core Module, please install the 3.0 Preview 6 Hosting Bundle and run the executable on a command line with the parameters OPT_NO_SHAREDFX=1 OPT_NO_RUNTIME=1. Then install the appropriate .NET and ASP.NET runtimes.
  3. Available symbols sets

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 3.0.0 Preview 6

Here is list of some of the additions and updates we're excited to bring in Preview 6. See the .NET and ASP.NET Core blogs for additional details.

  • WPF and WinForms updates
  • Alpine Docker images
  • Improvements to Event Pipe
  • Performance enhancements
  • Improvements to application size
  • CoreCLR: bugs | features
  • CoreFX: bugs | features
  • ASP.NET Core: bugs | features

Lifecycle News

As described in .NET Core OS Lifecycle Policy, we will no longer test .NET Core or produce updates for OS versions which are out of standard support or are end of life.


Our plans call for the next LTS release of .NET Core toward the end of 2019. We are also working on a long term release roadmap which will enable you to better plan for updates and understand the LTS release cycle. An introduction to the roadmap can be seen in the .NET 5 blog post