Microsoft decided to support CentOS in its virtualization offering. Why CentOS and not RedHat? RedHat Linux is open source, and Microsoft has no problem in the expertise area to support it, so why choose a derivative of CentOS that most people believe is simply RedHat with RedHat logo stripped off? My take: It cannot bring itself to say RedHat.
It does not want to be seen to support RedHat, so CentOS is the next best thing without having to say the dirty word.
Regardless of how RedHat feels about CentOS, this announcement to support CentOS instead of RedHat is going to irk RedHat.
At least Microsoft did this in a more polite manner than Oracle with ‘Ubreakable Linux’.