Just installed the new released version:
Two of the most worth mentioning here, are fixes for ‘cheating’ no more possible, and tournaments should be working fine now! 
Have fun all the gamers. 
Bugs fixed:
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Cheating by cross-scoring from other Games not possible anymore
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you don’t get logged out while playing
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PopUp-Resizing in Firefox fixed (again)
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Tournaments now work correct (advance to next round, sort the opponents ect.)
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ModCP Tournament Section fixed
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several small fixes in AdminCP
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some fixes in v3arcade-Style
Improvements: -
Tournament-Faceoffs now advance as soon as result is clear
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Some more admin related
New Feature: -
Users can create Tournaments (based on group/user-permissions)
*]“open Tournaments” with Slots to join in