Enterprises generally don't upgrade anything unless someone convinces them it's necessary. They don't want to follow the bleeding edge of tech, they want to fol

Enterprises generally don't upgrade anything unless someone convinces them it's necessary. They don't want to follow the bleeding edge of tech, they want to follow the most stable/secure tech with the largest pools of talented workers. Hence the popularity of Java and .NET at the enterprise level. Picking up .NET core would make a great start to transitioning to a Microsoft-based skill set. That's generally the way those skills are gained - by starting with the latest available to the platform and working backwards as necessary. I started down the path with .NET 4.5 and don't think I've had but a small handful of opportunities to utilize the features in it because most of the servers I work with have .NET 4 as the latest version.