Bukkit

3.6.9.3 New Features

• You can now choose an arena to join.
• New config options to limit joining to the same world, or within a certain distance
• Inventories are now saved asynchronously and can be restored see https://github.com/alkarinv/BattleArena/wiki/Admincommands#wiki-Listing_a_players_saved_inventories
• Auto update option: defaults to true. You can change this in the config (Only works for linux/mac)

Warning I introduced permissions for using class signs which you will need to add for players to use.

• arena.class.use.<class name>

Example:

• arena.class.use.*
• arena.class.use.gladiator