Code Samples for Professional C# 6 and .NET Core 1.0
.NET Core 1.0 is not released yet. The first plan was a release within  Q1 2016. However, because of the changing of tools (dnx tools are  changed to dotnet tools) and name changes (.NET Core 5 was changed to  .NET Core 1.0, and ASP.NET 5 was changed to ASP.NET Core 1.0), .NET Core  is delayed. The current plan is to release it on June 30, 2016.
To make it easy for you to work with the code using Visual Studio, the  downloadable code from the Wrox site goes through these iterations:
-    RC1: This is the code you just downloaded.
-    RC2: This version will be available after .NET Core RC2 is released.
-    RTM: This version will be available after the release of .NET Core.
The code for RC1 is slightly different from the code in Professional C# 6  and .NET Core 1.0 because the book describes the newer, updated  version. It’s just not yet easy to work with Visual Studio and the  updated code, however; that’s why you can download the RC1 version.
Currently, Microsoft’s plans are to release .NET Core on these dates:
-    RC2: April 8, 2016
-    RTM: June 30, 2016
Check the following website for actual information from Microsoft: 
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Every chapter download contains an additional readme file with  information about additional tools and databases that need to be  installed. Please open these files with Visual Studio or WordPad.  Notepad currently can’t cope with the line separators used with GitHub.
To make it easy for you, many chapters include both projects built using  traditional MSBuild and the new project.json project files. MSBuild  allows you to work with Visual Studio 2015 without installing  extensions. To use the .NET Core projects with project.json, you need to  install the ASP.NET 5 tools in addition to Visual Studio 2015. Install  the tools from here: 
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You can also install and use the new .NET Core command-line (CLI) tools.  These tools will replace the DNX tools when RC2 is available. At 
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  you can find Installer packages for Windows, and you also can install  these tools for other platforms such as Ubuntu, Mac, CentOS, and Red  Hat.
Please check 
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 for code updates as RC2 and RTM become available.
Check 
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 for interim updated versions of the code, as well as additional code samples.
I wish you all the best reading the book—grow by learning!