.NET Core December Update - 2.2.200-preview and 2.1.600-preview SDK

[vivmishra]

• .NET Core SDK 2.1.600-preview-009426
  Release Notes
  Download 2.1.600-preview

• .NET Core SDK 2.2.200-preview-009648
  Release Notes
  Download 2.2.200-preview

Please report any issues you find with 2.1.600-preview/2.2.200-preview, either responding to this issue, creating a new issue or creating a new issue in one of the following repos:

• aspnet/Home - for ASP.NET Core questions
• aspnet/EntityFrameworkCore - for Entity Framework Core questions
• dotnet/cli - for CLI tools and questions
• dotnet/corefx - for API issues and questions
• dotnet/coreclr - for runtime issues
• dotnet/core-setup - for installer issues
• nuget/home - for NuGet questions and issues

[rustbomber]

.NET Core SDK 2.2.200-preview-009648 Release Notes is 404.

[karelz]

Closing as newer updates shipped - see #2304 and #2432