Class layouts are unlikely to change, luckily. This changes the way that the code is generated in a way that forces mod developers to start from scratch finding functions and writing hooks. The reason for this is that as part of the update, Bethesda has decided to update the compiler used to build the 64-bit version of Skyrim from Visual Studio 2015 to Visual Studio 2019. dll files) would break because Anniversary Edition is changing the compiler to Visual Studio 2019 instead of the 2015 version used in Special Edition. extrwi wrote that the functionality of mod plugins and tools (especially the ones using SKSE and contain.
One of the developers of SKSE (Skyrim Script Extender) modding tool extrwi reported on Reddit that the upcoming Skyrim: Anniversary Edition rerelease for PC will be “disruptive” to the game’s modding scene. However, stuff seems to be changing soon. The Elder Scrolls titles, especially Skyrim, are the game to play when you want to experiment with mods.