The new weapon upgrading system is pretty sweet, basically you have the regular 1-10 upgrade (10 being max now) and while upgrading this you can add another effect such as bleed, poison, magic, dark, lightning etc etc, at the cost of some scaling reduction. Some of the effects scale with skills though so its pretty good, for example bleed and poison scales with dex afaik which, so im going to use that on my dual wielding dex char.