The "TransferCurrencyEvent" was replaced with the "BalanceSubmitEvent" to accommodate the new "BalanceRequestEvent" this makes things a lot easier for custom economy hooks.
Several methods were either relocated to the "DisplayShopsAPI" or directly pulled internally and are no longer accessible.
The "Manager" interface has been modified resulting in the removal, addition, and merge of several controllers.
The "Shop" interface has been modified resulting in the removal, addition, and merge of several controllers alongside the addition of the "Mode" enumeration.
All menus are now nested under the new "InterfaceType" interface for quick enumeration menu building.
Shops now have two modes Economy and Item allowing players to determine how their shop handles transactions directly.
Shops no longer have individual balances.
Shops no longer have individual settings for dynamic price changing.
The shop base-block system was renamed to appearances and slabs now automatically become the top-half of the block for mc versions 1.13+.
A global re-worked dynamic price-changing system was implemented (disabled by default).
Support for ASkyBlock, IridiumSkyBlock, FabledSkyBlock, and SuperiorSkyBlock have been implemented for island disband and/or deletion.