• Improved the built-in rollback feature! Though, generally, it is still recommended to use FAWE as that is still faster and avoids some bugs.
  
• Fixed a bug where if FAWE was installed and no arena schematic was created then the arena would not rollback
  
• The update region command no longer requires to reselect the arena region everytime
  
• Fixed the worldmanager backup command in latest minecraft versions

Backup your arenas before this update as it changes the blocks save file to a new format