This update brings experimental Spigot 1.17 support.

Mimic support
Mimic automatically detects classes and levels plugins that you use and RPGInventory will use it for items and slots requirements.
All supported level and class systems are available on this page.
With Mimic you can add support of your own levels/classes plugin.

Removed level-system and class-system options from config.
Option slots.level.spend works for any level system.

Added RPGInventoryItemsRegistry.
You can get RPGInv items using command:
Added

• Validation of slot IDs on slots initialization
• Validation of allowed and denied items on slots initialization

Fixed

• Dupe when pressing F on item (#168)
• Fixed errors after plugin reloads
• Fixed dependencies relocation
• Removed SLF4J from dependencies