Normal bows drop a lot still. They're just really annoying. And boring!
Attack is still borked, doesn't do anything
Wither makes me sad, as it is not workin'
Double or higher socketed items are a bit buggy still. Sometimes overwrites, or reverts item, etc.
With the awesome new tier drop rates, the standard percentage in the config seems to have been disabled or changed somewhat. When very low, mobs continue to drop large numbers of items.
That's about it for now!