You have to downgrade Fallout 4 to before next-gen version to be able to install Fallout London. You can use a mod to do it, or manually by using the Steam console to ...
Some mods will require you to change the in-game files, install plugins, or even edit scripts. Make sure that you check the mod descriptions before downloading ...
Bethesda has outlined the patch notes for Fallout 4 ahead of the release of the Creations Menu update and Anniversary Edition ...