# .NET Reference Source The referencesource repository contains sources from [Microsoft .NET Reference Source](http://referencesource.microsoft.com/) that represent a subset of the .NET Framework. This subset contains similar functionality to the class libraries that are being developed in [.NET Core](https://github.com/dotnet/corefx). We intend to consult the referencesource repository as we develop .NET Core. It is also for the community to leverage to enable more scenarios for .NET developers. **Please note that the referencesource repository is read-only**. [See this blog post](http://blogs.msdn.com/b/dotnet/archive/2014/11/12/net-core-is-open-source.aspx) for the rationale. Questions, bugs, and pull requests should be done through [.NET Core](https://github.com/dotnet/corefx).