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.NET Core 3.0.0 Preview 9 - September 04, 2019

.NET Core 3.0.0 Preview 9 is available for download and usage in your environment. This release includes .NET Core 3.0.0 Preview 9 and .NET Core SDK 3.0.100 Preview 9.

Visual Studio compatibility: .NET Core 3.0 Preview 9 requires Visual Studio 2019 16.3 Preview 3 to take full advantage of all its features. .NET Core 3.0 Preview 9 will not work properly in earlier versions of Visual Studio. Visit Visual Studio Preview to learn about VS previews.

Blog Roundup

The .NET Core SDK 3.0.100 Preview 9 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-preview9-014004 of the tools.

dotnet --version

Your feedback is important and appreciated. We've created an issue at dotnet/core #3304 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 - -
  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.


All symbols for .NET Core releases for all platforms are now available from nuget or public symbols server. The symbols zips files that we used to share in the release notes earlier will no longer be provided.

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 9

Here is list of some of the additions and updates we're excited to bring in Preview 9. See the .NET and ASP.NET Core blogs for additional details.

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