Bukkit

v0.8 - September 10, 2011

• 
  
• Small performance improvement in onBlockBreak(); for the majority of mining
  we now only have to do a single if() integer comparison and we're done.
  
• Major improvement to cave detection. Plugin now efficiently stores the last
  50 blocks a player has mined in a circular buffer. When doing a cave check
  (which happens in a separate thread, not on main Bukkit thread), it now checks
  nearby air blocks against the player's recently mined blocks to determine if
  they are in a cave or a player-mined tunnel. This results in significantly
  more accurate cave detection and therefore less false positives.