AMD has commented on the leak of its FSR 4 source code along with the release of its new FidelitySDK earlier this week, confirming that it was indeed accidental. It has since pulled the files down from the GPUOpen Github, but that may not matter. When they were originally released, it was under the MIT license, effectively allowing anyone who downloaded them to use, copy, or modify them as they wish. Taking the files down doesn't change the license, it merely prevents others from downloading the files.
On August 20 AMD updated its FidelitySDK on Github, adding support for FSR 4 and FSR 3.1.5 frame generation. This is the toolset used by game developers to add FSR upscaling and other related technologies to their games. AMD also plans to use this as the base for future machine learning neural rendering technologies, including FSR Redstone.
