AMD has released Adrenalin Edition 26.9.1, a WHQL-certified driver update tailored for Windows 10 and 11 systems with Radeon RX graphics. The maintenance release primarily targets RDNA 4 stability, addressing intermittent crashes in Starfield and Apex Legends for RX 9000 series owners while adding day-zero support for new titles Onimusha: Way of the Sword and The Blood of Dawnwalker. Notable caveats include installation failures for the AI Bundle in regions with limited access to HuggingFace and GitHub, a known issue disabling Smart Access Memory on Windows 10, and AMD's first public acknowledgment of the RX 9050's 4GB VRAM limitations in Cyberpunk 2077. 

AMD Releases Adrenalin Edition 26.9.1 Driver, Targets RDNA 4 Stability

The September maintenance update adds day-zero support for two Capcom titles and quietly acknowledges the RX 9050's 4GB VRAM bottleneck.

AMD dropped Adrenalin Edition 26.9.1 today. It's a WHQL-certified optional update for Windows 10 and 11 systems running Radeon RX graphics. The release is squarely aimed at RDNA 4, with AMD using it to smooth out early growing pains in the RX 9000 series lineup.

The update packages the main driver at version 26.10.41.03, alongside an alternate variant at 25.10.45.09. There's also a refreshed Ryzen AI NPU MCDM driver at 32.00.20102.3930. Keep in mind that the auto-detect tool on AMD.com still defaults to 26.8.1 for general downloads. That tells you AMD is treating 26.9.1 as a targeted push for RX 9000 owners rather than a broad ecosystem refresh.

The biggest news for RDNA 4 users is straightforward. AMD finally patched an intermittent crash affecting Starfield and Apex Legends. Those crashes had been a known headache for RX 9000 series owners since launch. If you've been bouncing between the two games, this maintenance release should lock things down.

New Titles and a Bundled Push

Two Capcom games get day-zero driver support. Onimusha: Way of the Sword and The Blood of Dawnwalker will run without manual tweaks out of the gate. AMD is also bundling Onimusha with qualifying Ryzen 9 X3D processors and Radeon RX 9070 XT or 9070 cards through its Q3 2026 game bundle program. It's a familiar play. Lock in the CPU, lock in the GPU, and hand a free AAA title to whoever buys in.

The AI Bundle, which shipped in January, remains a one-click shortcut to PyTorch, ComfyUI, Ollama, LM Studio, and Amuse. But the 26.9.1 release flags a clear friction point. Users in regions with restricted access to HuggingFace and GitHub will likely see installation failures. AMD's push into local inference is competing directly with NVIDIA's CUDA ecosystem, but this geopolitical friction could trip up a lot of hobbyist developers before it gains real traction.

The VRAM Conversation

AMD also did something unusual for a driver release. The notes explicitly flag Cyberpunk 2077's 6GB VRAM minimum and tell RX 9050 4GB owners to crank graphics-intensive features to low or off. That is the first time the company has publicly called out a VRAM shortfall on its own lowest-tier RDNA 4 card in official documentation. At 4GB, the RX 9050 is already competing against cards with significantly more memory at similar price points. The limitation is a real constraint for modern DX12 titles, even if FSR and upscaling can stretch it further.

On balance, 26.9.1 is a solid housekeeping release. It targets the RDNA 4 pain points, adds day-zero support where it matters, and gives AMD owners a clearer picture of what to expect at the entry level. The AI Bundle friction is a minor annoyance for most gamers, though it might matter more to local AI tinkerers. If you're running an RX 9000 series card, you'll want this one installed.

You can grab the WHQL installer directly from AMD's driver release notes page, or use the auto-detect tool to let it sort out your setup. The download targets Windows 10 64-bit version 21H2 and newer, plus Windows 11 21H2 and later.