Two days ago as part of the GPUOpen relaunch AMD released Radeon Rays 4.0 as their ray intersection library. Unlike the previous Radeon Rays release, however, this new Vulkan-enabled version was not open-source. But now AMD has decided that at least in large part it will be going back to open-source…

Source: Phoronix – AMD Rethinks Decision And Will Open-Source Most Of Radeon Rays 4.0