You’ll be sure to want those if you’re planning on heading to the Shivering Isles.
There are also a couple of other patches for the DLC and expansions, too. This huge game-wide patch fixes 1,800 bugs and glitches, from the minor animation glitches to the floating rocks, holes in the floor, and see-through wall.
This unofficial patch is essential for getting into Oblivion Nexus on PC.