As of 2026, the majority of popular mods have been updated for the latest versions. However, 1.6.640 remains a stable, well-supported version with a massive library of compatible mods. If you have a large, established mod list that works perfectly on 1.6.640, there is little reason to update. Conversely, if you are starting a fresh mod list, updating to 1.6.1170 (SKSE 2.2.6) may be the simpler path, as you can use the latest versions of all mods without needing backports.
was specifically designed to support Skyrim Special Edition/Anniversary Edition runtime 1.6.640 . skyrim skse 1.6.640
Get the archive for 1.6.640 from the official SKSE site. As of 2026, the majority of popular mods
Copy all .dll and .exe files ( skse64_1_6_640.dll , skse64_loader.exe , etc.) and paste them into your root directory (where SkyrimSE.exe is located). Conversely, if you are starting a fresh mod
This depends on your mod list:
For new modders, starting with a 1.6.640 base is arguably the most straightforward path to a stable modded setup. For veterans, it's the trusted workbench. While mod authors are doing heroic work to keep up with Bethesda's pace, the massive community effort built around the ecosystem ensures it will remain a pillar of Skyrim modding for years to come.