TL; DR: Nvidia’s DLSS has several versions, ranging from 1.0.0 to 2.2.10. Regardless of this, game developers can update it, but that usually takes some time. However, DLSS client libraries are available so that users can upgrade DLSS themselves, but only within the major version (for example, DLSS 1.0 can be upgraded to 2.0).
It seems that for every new wave of games receiving DLSS, there is a new version of Nvidia’s enhancement technology. For example, Doom Eternal introduces DLSS 2.1.66, Rainbow Six Siege is version 2.2.6, and Unreal Engine 5 comes with DLSS 2.2.9, but they should all be able to upgrade to the latest DLSS version … presumably 2.2. .10 found in Rust.
Users can wait for the developer to update DLSS in the next game patches, but a manual update is also possible. This was discovered by users who replaced the DLLs corresponding to the DLSS libraries located in the game’s installation folders, which could allow for new features, image quality, or performance improvements. To exchange the files, you will need to purchase “nvngx_dlss.dll” for the version you want and replace it in the game’s installation folder. A quick Google search will lead to these .dll files, but it can be difficult to identify which ones are safe to download.
To help with this task, TechPowerUp created a library of DLSS files so users can download the version of their choice with complete peace of mind. We trust in TPU who says all files have been “manually verified to be the original unmodified”.
The library currently contains 23 files, of which 18 are DLSS 2.0 files and the other 5 are DLSS 1.0 files. The files range from DLSS 1.0.0 to 2.2.10. TechPowerUp hopes to grow the file library as new versions are released.
Please note that DLSS 1.0 games cannot be upgraded to DLSS 2.0 simply by replacing the file. Only the game developer can perform a full version update, similar to how Remedy Entertainment did in Control.
In theory, each new version should be equal to or better than the previous one in terms of performance and image quality, but some users report suggest otherwise. Depending on the game and the version of DLSS, the results will vary, so if you like the files and optimizations, you will have to try them all until you find the one that best suits your game.