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Release Notes

.NET Core 2.0.0 Preview 1 released 5/10/2017

.NET Core 2.0.0 Preview 1 and SDK 2.0.0 Preview 1 are available for download and testing. These can be found on .NET Core Preview 1 or the Preview 1 download page.

The .NET Core SDK 2.0.0-Preview 1 includes .NET Core 2.0.0-Preview 1 runtime so downloading the runtime packages separately is not needed when installing the SDK.

You can see details for other areas of the release in the .NET Blog and have a look at .NET Core 2.0.0 Preview 1 Known Issues document as there are a few things to be aware of before installing.

We've created dotnet/core #640 for your questions and comments.

.NET Core 2.0.0 Preview 1 Highlights

.Net Standard 2.0 support is built into .NET Core 2.0.0

You can visit the following locations to learn more about .NET Standard.

Linux Binaries

The 'generic' Linux binary archives are new for the 2.0 release. This package contains binaries which are compatible with Linux distros and versions supported by .NET Core. This will also enable you to experiment with Distros not present on the supported list but are libc compatible.

OpenSSL is no longer needed on OSX

We have made changes to the crypto libraries to take advantage of services available natively in macOS.

Runtime Package Store

The runtime package store enables creating a precompiled cache of common libraries which can be centrally provisioned and not deployed to every application reducing deployment size and time.

Separate Host Executables

Portable and Standalone applications now use separate host executables. This enables developers building Standalone applications to sign the host executable with their publisher signature.

And even more ...

  • Portable binary archives for all platforms
  • Support for Linux Arm builds
  • Windows Arm32 and Arm64 builds

.NET Core 2.0.0-Preview1 Symbol Packages

Symbol packages for .NET Core 2.0.0-Preview 1 are available for download from the following locations.

Docker Images

The .NET Core Docker images have been updated for this release. See the new image names below.


  • 2.0.0-Preview1-runtime
  • 2.0.0-Preview1-runtime-nanoserver


  • 2.0.0-Preview1-sdk
  • 2.0.0-Preview1-sdk-nanoserver