This update contains some new features, such as allowing players in the same mcMMO party to PVP in arenas with setdamage enabled, restoring an impact effect to snowballs (which had been removed by Spigot), and allowing the word '[Join]' to be customisable on TNTRun_reloaded join signs (can also blank by specifying an empty string in the config.yml):
If you use the HeadsPlus plugin with TNTRun_reloaded then you will have to update HeadsPlus to at least v6.3.2 (v6.4 recommended) due to code changes within HeadsPlus.

Fixed some bugs with stats and signs - see below.

Change Log
=========

• add support for mcMMO parties (classic and overhaul)
  
• give snowballs an impact effect in PVP enabled arenas
• update for changes to HeadsPlus code - min v6.3.2 required for v8.1
• fix possible NPE on arena start if stats is disabled
• don't attempt to update leaderboard sign if stats is disabled
• allow Join sign text to be customisable
• add "signs.join: '[Join]'" to config.yml
• send confirmation message on sign destroy for Vote and Leave signs (as per Join sign currently)
• get version checker to ignore dev/snapshot builds

Please report any issues found preferably on GitHub or Discord - https://discord.gg/wFYSAS4

Thanks.