In addition to its availability, the GPUOpen page also provides a quick overview of the plugin’s use across several quality settings. Additionally, the FSR plugin also features a Contrast Adaptive Sharpening plug, something that developers must ensure that other existing CAS integrations are disabled before being activated. To that end, the FSR plugin will work with Unreal Engine version 4.271.1. On another note, it is a little odd that AMD isn’t making the plugin available for the current Unreal Engine 5, especially since its Green Team rival already has DLSS plugins available on said engine. (Source: Videocardz, GPUOpen)

AMD FidelityFX Super Resolution Plugin Now Available On Unreal Engine 4 - 63