http://capcom.co.jp/devil4se/global/system.html?la=en
Some new adjustments, posted on the official site, I did not see them in the other posts, intriguing why they'd increase the gain for Red orbs and Proud Souls, I thought they were already aquired fast as is, but I'm not complaining ^^
Auto-Save
The game now saves automatically every time you clear a story mission, meaning you can keep playing as much as you want without having to worry about saving your progress!
Increased Item Acquisition Rate
The rate at which you will acquire Proud Souls and Red Orbs, which are used for buying skills and items, has been increased! Unlock moves faster and get the items you need to help you clear missions!