This won't shake the programming world to its very core at all, no-sir-ee! Microsoft and GitHub are talking about selling GitHub to Microsoft. http://www.businessinsider.com/2-billion-startup-github-could-be-for-sale-microsoft-2018-5
...And it's official. GitHub sold out to Microsoft: https://blogs.microsoft.com/blog/2018/06/04/microsoft-github-empowering-developers/