Microsoft Open Sources C# Compiler
They also announced as part of this that they are putting a large swatch of their .NET Source code under Apache 2 and accepting pull requests.Folks, this is a very big deal for Microsoft. Who would have imagined this 10 years ago?Here is an image that shows what they are putting into the community
https://pbs.twimg.com/media/BkT9oBcCQAAHIAV.jpg:large