Microsoft Open Source: Now includes .NET Core CLR | CodeGuru

Microsoft Open Source: Now includes .NET Core CLR

Last week Microsoft continued down the path of making more of their development platform open source. ASP.NET had been made open source a while back. Last fall they released the .NET CoreFX portions of the .NET Framework, and now they add to that the .NET Common Language Runtime (CLR). This is now available through the […]

Feb 9, 2015
2 minute read
CodeGuru content and product recommendations are editorially independent. We may make money when you click on links to our partners. Learn More

Last week Microsoft continued down the path of making more of their development platform open source. ASP.NET had been made open source a while back. Last fall they released the .NET CoreFX portions of the .NET Framework, and now they add to that the .NET Common Language Runtime (CLR). This is now available through the .NET CoreCLR Repository on GitHub.

https://github.com/dotnet/coreclr

What does the Core CLR do? It includes functions such as the Intermediary Language (IL) byte code loading, garbage collection, and the compilation of your .NET code to executable machine language code.

Rather than reiterate what has been said before, I suggest that you read the .NET Framework blog on the Core CLR project. They provide a lot of the details here.

.NET Foundation Projects

If you jump out to Github, you’ll find that the amount of .NET code available continues to grow. Many of these are being supported by the .NET Foundation. It is interesting to look at the list of project that the foundation is working on. Of course, these are open projects, which each contain a link to contribute. They include:

  • .NET Complier Platform (“Roslyn”)
  • .NET Micro Framework
  • ASP.NET 5
  • Entity Framework 6
  • Microsoft Azur4e SDK for .NET
  • NuGet
  • .NET Core 5
  • .NET SDK for Hadoop
  • ASP.NET SignalR
  • Managed Extensibility Framework (MEF, MEF2)
  • System.Drawing (Mono)
  • Xamarin.Mobile
  • Windows Phone Toolkit
  • Xamarin.Auth
  • Umbraco
  • And many more

The list goes on from there. The point, however, is that Microsoft is opening up a lot of the developer technologies. As a developer, you have the opportunity to jump in and not only see the code, but help build future releases.

Pretty cool!

CodeGuru Logo

CodeGuru covers topics related to Microsoft-related software development, mobile development, database management, and web application programming. In addition to tutorials and how-tos that teach programmers how to code in Microsoft-related languages and frameworks like C# and .Net, we also publish articles on software development tools, the latest in developer news, and advice for project managers. Cloud services such as Microsoft Azure and database options including SQL Server and MSSQL are also frequently covered.

Property of TechnologyAdvice. © 2026 TechnologyAdvice. All Rights Reserved

Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.