Bukkit

• Added player shops which are managed with the /manageshop command (/ms) For more information check the commands page.
  
• Added composite items. To use them enable use-composite-items in config.yml. Composite items allow the prices of items to be based on the price of their components. For example a diamond block will always be worth 9 diamonds. This applies to virtually all item recipes. It is disabled by default.
  
• HyperConomy's internal economy can now hook into Vault to be used with other plugins. To use this feature set hook-internal-economy-into-vault to true in config.yml.
  
• Web page removed and converted into its own plugin HyperConomy Web. (Reduces file size of HyperConomy and wastes less bandwidth.)
  
• Large amounts of code restructuring and clean-up.
  
• New database engine. (Databukkit)
  
• Fixed leaves
  
• Chest shops with fixed prices can now trade items which are unknown to HyperConomy.
  
• Chest shops no longer allow damaged items to be traded.
  
• Improved /importbalance command. It should now catch virtually all accounts from external economy plugins.
  

This build should be more stable than .973 and .972, but there were a massive number of changes so there may be some remaining bugs.  I will release a beta/RB after more testing and cleaning up some commands.  If you find any bugs in the development build let me know and I should be able to provide a quick fix.