Well, most of these projects are real open source projects, in which resources are somewhat sparse, and so new features and additions need to be prioritized. Th

Well, most of these projects are real open source projects, in which resources are somewhat sparse, and so new features and additions need to be prioritized. There is still some question regarding just how "good" http/2 really is. The complexity of http/2, as well as the fact that it really doesn't "fix" a lot of the problems in http/1.1, means that its universal applicability is still very much in question.