: This was a major "Anniversary Edition" (AE) build released around September 2022. While newer versions like 1.6.1170 now exist, 1.6.640 remains a popular "gold standard" for modding because of its stable compatibility with specific versions of the Skyrim Script Extender (SKSE64) (specifically version 2.2.1).
Guide :: Revert SSE to version 1.6.640 or 1.6.1130 - Steam Community : This was a major "Anniversary Edition" (AE)
: If you are using this file, ensure your mods are labeled for "AE" or "1.6.x" rather than the older "SE" (1.5.97) versions, as the code structure differs significantly. and mechanics). Common Use Cases
: This version typically includes the base Skyrim Special Edition plus the Anniversary Upgrade , which consists of all 74 Creation Club elements (new quests, armor, and mechanics). Common Use Cases : This was a major "Anniversary Edition" (AE)