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• Added 1.21.11 support.
• Improved Folia support.
• Improved thread safety for auction transactions.
• Improved purchase and bid transaction safety with balance rollback.
• Improved inventory memory handling to prevent memory leaks.
• Improved input validation for price and bid amounts.
• Improved database save on plugin shutdown.
• Improved security for command execution and item deserialization.
• Updated AnvilGUI dependency.
• Fixed a bug where bid balance could be deducted without proper validation.
• Fixed a bug where previous highest bidder could be refunded twice.
• Fixed a bug where purchased items could be given without enough inventory space.
• Fixed some bugs.