3.0.0-preview6.md

.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.

• Downloads
• Changes in this release
• Known issues

Blog Roundup

[Will be published at 10 am pacific time]

• .NET Core 3.0 Preview 6
• ASP.NET Core

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.

Downloads

	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
   • ASP.NET Core
   • ASP.NET Core Tooling
   • Setup
   • CoreCLR
   • CoreFX
   • Entity Framework Core
   • EF Extensions
   • Linker
   • MSBuild
   • NuGet Client
   • Roslyn
   • NETStandard
   • Templating
   • Visual F#
   • WebSDK
   • WinForms
   • WPF

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

• microsoft/dotnet
• microsoft/dotnet-samples

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

• Fedora 28 reached end of life May 2019.
• Ubuntu 14.04 reached the end of standard support(https://wiki.ubuntu.com/Releases) April 2019.

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.

.NET Core LTS

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