includes 1.21.5 (spigot 1.21_R4) support.
        
         
        
        
        updated the Block related library.
        
         
        
        
        includes the latest paper 1.21.4_79 support.
        
         
        
        
        using WG's other-explosion flag instead of block-break
        The use of other-explosion flag makes the checking process much faster.
 
        
        
        fixed the version check bug.
        
         
        
        
        updated the version check process.
        
         
        
        
        updated use PersistentData.
        
         
        
        
        updated the jar file handling.
        
         
    
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