OK, so we have a name for our new API: Vulkan (seriously? You guys are really going with that?).
As information about the API becomes available, I’d like this thread to be a set of links to substantive information about it. So please don’t post here commenting about it; just link to information.
Oh, and please label PDF links as such.
Khronos Vulkan page. Will probably see more info in the future.
Introduction to SPIR-V Absolutely essential information on Vulkan’s shading language.
Khronos SPIR-V page. Links to the preliminary specs, as well as supplementary material.
SPIR-V Provisional Specification, March 3, 2015. It’s a specification. I would suggest that you read the intro first, to get a feel for it.
PowerVR post about Vulkan. Though it’ll be obsolete in about 24 hours, there are some tantalizing hints in that article about some details of the Vulkan API.