早幾日Build 2014上Microsoft宣佈Open source "Roslyn" (compiler platform)、由.NET Foundations推廣.NET platform上嘅Open source projects。

http://arstechnica.com/information-technology/2014/04/microsoft-open-sources-a-big-chunk-of-net/

"Roslyn"
http://roslyn.codeplex.com/

Relevant discussion on reddit:
http://redd.it/22463d