Important Notes For Developers
If you're don't using advanced slot module, feel free to ignore notes below.

onPreClick method splitted as onPrePutClick and onPrePickupClick. From this release onPut, onPickup, onPrePutClick and onPrePickupClick methods has second parameter to get clicked item. The clicked item; sometimes storing at event.getCurrentItem, sometimes at event.getCursor, sometimes at hotbar slot. Sometimes that problem going to very strange stages. That is why second parameter there is now. It'll give you true clicked item stack.

The item parameter is a non-null parameter. So, the event parameter cannot be null too.

FIX fix wrong put action trigger
FEAT add pre pickup click action
FIX fix hotbar air swap bug
FIX fix wrong put item amounts specifying
FIX fix pre pickup action error
FIX fix multiple advanced slot bugs.
FIX click event trigger bugs about cursor/hotbar swap
FIX fix advanced slot managers doesn't registers itselfs.
FEAT add item parameter for actions.
FEAT add getPuttedItem method to advanced slot
FIX multiple advanced slots sometimes doesn't refund items.
FEAT add disabling option of refund item feature for developers.