Yep, a beta, which is also available in the discord. But this version is a lot more stable than the version before. I suggest you to create a backup of your worlds, yet there aren't any reports with worlds disappearing. There's is still some stuff missing for the 3.3 release and do not expect, that every new feature will work flawlessly. Send me bug reports if you find any, like always.

Added features:

• Arena picker system
  
• Added warning when loading an arena and it has problems
  
• Added warning when loading an arena that has problems
  
• Added warning if BungeeCord and AutoJoin are enabled at the same time

Minor change:

• Stats files are now getting reseted if they fail to load locally. Also the stacktrace has been replaced with a message

Added configs:

• tnt-canbreakblocks
  
• diein-border-bottom
  
• spawnerhologram-height
  
• spawnerhologram-speed

Fixed bugs:

• Fixed visibility bug of spectators
• Fixed that it is possible to create an arena with the type world in your main world
  
• Fixed main world detection bug
  
• Fixed that the region collision detection didn't checked worlds
  
• Fixed that holographics are disappearing
• Fixed a compatibly bug with CloudSlots
• Fixed some more