2014 Nov 13
Yesterday, Satya Nadella, Microsoft's CEO, announced that they will release the core of .NET, the Microsoft application development platform, as open-source. In addition, .NET will be ported to run on additional platforms, primarily Mac OS X and Linux.
For Microsoft, the ultimate closed-source and proprietary stack company, this is an earth-shattering move.
Developers have long had a choice of platforms on which to write applications. Java and its variants, Ruby on Rails, Node, Python, PHP, lately Go and Dart, the list goes on and on.