Breaking changes. Do not use with old mods.
- Remove
ItemStack.getCustomId()
,ItemStack.getCustomIdOrId()
,ItemStack.getCustomModifiers()
,ItemStack.getCustomStatusEffects()
,LivingEntity.getCustomModifiers()
,LivingEntity.getCustomModifiers(String)
,LivingEntity.getCustomModifiedValue(String, double)
.