1.3.0

• replaced the "default_hotbar_slot_amount" server config option with "naturalHotbarSize" game rule and adjusted the "generic.hotbar_slot_amount" entity attribute
• replaced the "default_inventory_slot_amount" server config option with "naturalInventorySize" game rule and adjusted the "generic.inventory_slot_amount" entity attribute

1.2.1

• added support for latest Slot Customization API version

1.2.0

• inactive hotbar slots are no longer selectable in the ingame HUD
• added client config option to hide inactive inventory slots in all vanilla screens
• fixed crafter and shulker box screens not disabling inactive slots

1.1.0

• removed dependency on cloth config
• added dependency on fzzy config
• added missing localization keys
• added API methods for getting active hotbar/inventory size of a player to main class
• inventory size is now also checked when opening the normal inventory

1.0.1

• internal refactoring to improve compatibility

1.0.0

Initial release.