If a new modifier was added to a unique item, the new modifier will not spawn. In cases where a modifier was removed, the affix will become disabled with a hidden value of zero. This also means that magic or rare items will have a hidden mod that will prevent new mods from being crafted.

Divine Orbs re-roll the values of explicit values of modifiers. This can only be used on magic, rare, or unique items. Only the values of affixes that have a range of values will be randomized. A Divine Orb will not change the tier of the affix; it will only re-roll within its current tier. When a Divine Orb is used on a legacy variant of a unique item, affixes will re-roll to the new range of values. When using on a magic or rare item, the affix will re-roll assuming the new range of the same tier.