Overview
- Adrenalin 25.9.1 introduces a driver-level override that replaces a game's FSR 3.1 implementation with FSR 4 via a toggle in the AMD Software app.
- AMD says the update brings official FSR 4 coverage to more than 85 titles, with Wccftech noting new support for Borderlands 4 and Hell Is Us.
- The feature is limited to Radeon RX 9000‑series GPUs and applies only to DirectX 12 games that use a signed FSR 3.1 DLL, leaving Vulkan titles out.
- PC Gamer reports that users must enable FSR 3.1 in-game and then switch on the FSR 4 toggle, and it cautions that driver-forced upgrades may not match native developer integrations.
- The 25.9.1 release also delivers bug fixes and optimizations, including stability improvements for titles such as Wuchang: Fallen Feathers and Monster Hunter Wilds.