Overview

• AMD acknowledged that FSR 4 development code was posted to its GPUOpen GitHub in error and said it has been removed.
• Copies remain accessible because the files were briefly published under an MIT license and were forked before takedown.
• Repository screenshots show duplicate FSR 4 libraries referencing FP8 and INT8 paths, revealing work on a lower‑precision variant.
• Reporters note the INT8 artifacts could enable operation on older RDNA 3 GPUs such as the RX 7000 series, though readiness and image quality are unclear.
• The incident coincided with the FidelityFX SDK 2.0 release that adds FSR 4 and FSR 3.1.5 frame generation, plus signed DLL integration and an Unreal Engine 5 plugin.