The Adv-Cast buff had a side-effect that tripled casting difficulty (NB: buff is from using Advanced Casting), but by mid-game or so this effect may as well not be there.

As such, it now affects not only the player character but also pets.
The buff's effects have been revamped and are as such: casting MP cost is increased, spell potency is increased, and [spell] and Casting skill base experience received are increased.

The Japanese name of the special action has been changed (NB: English name is unaffected) and it is now a 'W'ide-area special action.
Floating characters who move onto a tile with a trap that does not get triggered by floating targets will now roll to disarm that trap immediately instead of having a delay.

The potency of the player character's spells is now calculated using the average of that spell's level and Casting skill level.
This means the player no longer has to level every single spell from scratch, and that leveling Casting skill no longer becomes pointless after a certain point.

In light of the above change, the player character and NPCs now earn the same amount of spell and Casting skill experience when casting spells.
Containers that aren't gamble boxes will now also display the level of their lock in their name if they are locked.
It will say "Lock-Lv" instead of just "Lv" so that it's clearer what that number is referring to.
Rebalanced enemy NPC attack range.
Blessed pieces of equipment can no longer be cursed by the Curse special action. Scrolls of curse will still work on them though.
Nerve element was changed to inflict Sleep, and that caused the Eye of Stiffen special action to not live up to its name.
As such, said special action now inflicts Bind as well if the target is afflicted by fewer than 3 turns of Bind.
Increased the guard break gauge increase for characters who have received damage from 2% to 3%.
If the attack was dodged, guard break will not increase - this remains unchanged.
PV/DV element attacks increase the target's guard break gauge by 6 points now, down from 10 points.
Changed the HP absorption calculation for nether element damage to prevent overflow.
The highest achievable amount has been decreased but the randomness has been greatly reduced.
If damage display is turned on, the log message will now display the amount of HP absorbed.
When damage received is reduced to 0 or below (such as with the Barrier feat), guard break and power gauges no longer increase multiple times.
In previous versions, the Gravity spell added anywhere from 50 to 99 turns of Gravity status ailment to every target hit. The number of turns was independent of spell potency and was rolled separately for each target.

Now, it inflicts a base +30 turns, and can increase up to +100 depending on spell potency. The resulting amount is applied to all targets hit.
The log will also display the number of additional turns of Gravity status ailment that were inflicted.
Gravity status ailment now has an upper limit of 1,000 turns.
Added some English translations provided.
[Fixes]
Fixed the upper limit for the Speed buff from Gravity Accel special action; it is now 300 instead of 200.
The damage reduction calculation for Jiu-jitsu status has been updated.
Fixed Suicide Attack having the same visual effect as Bubble Storm.
Fixed NPCs who died in the Camp taking up a Camp slot.
House board and similar items will now display the number of NPCs currently interned.