Weapons nerfs. 2h swords lost a lot of thrust damage, couple points of speed and the thrust change. Top-end 1h swords nerfed (elite scimitar losing 1 cut, sidesword getting nerfed heavily etc), shields losing a lot of their forcefield(fu shik) and getting heavier(happened pretty long ago). Damage soak change (not really a nerf per se since every infantry class had to deal with it, but a nerf in a way since ranged still use the old ones). Lots of different polearm changes (longspear, pikes, awlpike can't be used with a shield, etc). Off the top of my head.