Intel XeSS Plugin 3.1 Adds Unreal Engine 5.8 Support

Intel has released version 3.1.0 of its XeSS plugin for Unreal Engine, bringing support for the latest 5.8 engine iteration to developers. This update matters because it allows game studios to integrate Intel's upscaling and frame generation technologies into their newest projects without waiting for separate toolchain patches. Developers targeting the UE 5.8 ecosystem can now access these features directly through the updated plugin package.

Update brings SDK 3.0.2 and fixes stability issues

The plugin serves as the bridge between Intel's Xe Super Resolution (XeSS) technology and Unreal Engine projects. It bundles the XeSS SDK, which handles the actual rendering logic for super resolution and multi-frame generation. The update also includes XeLL, or Xe Low Latency, which helps reduce input lag in supported titles. This combination gives developers a unified toolset for performance optimization within the Unreal Engine environment.

The release upgrades the bundled XeSS SDK to version 3.0.2 and moves XeLL to version 1.3.2.10. Intel offers separate installation packages for Unreal Engine versions ranging from 4.26 to 5.8 to ensure compatibility across different project lifecycles. The update addresses several stability issues, including a memory leak in XeLL and crashes associated with NVIDIA Streamline. It also corrects invalid log-level handling that could interfere with debugging workflows.

Intel lists a specific known issue with the new Unreal Engine 5.8 package regarding XeLL compatibility. XeLL does not work correctly with Unreal Engine versions 5.8.0 or 5.8.1 at this time. Despite this limitation, XeSS Super Resolution and Multi-Frame Generation remain functional in UE 5.8. We touched on Intel XeSS SDK 3.0.2 fixes latency in our earlier Intel coverage, noting the broader improvements in the SDK version included here.

The XeSS Plugin 3.1.0 is available for download for developers using Unreal Engine 4.26 through 5.8. The update provides essential stability fixes and new engine support, though users of the latest UE 5.8.0 and 5.8.1 must avoid XeLL until a fix is released. This release ensures that the core upscaling features remain accessible for new Unreal Engine projects.