On October 25, 2016, Microsoft announced the release of ASP.NET Core 1.1 Preview 1.

The .NET Core 1.1 Preview 1 release note is available here (https://github.com/dotnet/core/blob/master/release-notes/1.1/1.1.0-preview1.md).

The installation instruction is available at dotnet/core’s GitHub (https://github.com/dotnet/core/blob/master/release-notes/preview-download.md).

The full announcement is accessible from .NET Blog’s article Announcing ASP.NET Core 1.1 Preview 1.