The Battle.net Forums have word that Patch 16 for the StarCraft II Beta is now available, bringing the test version of the real-time strategy sequel to version 0.19.0.15976 (thanks Ke). The new version include some changes, balance fixes, and enable cross-game social with World of Warcraft, and presumably indicates the beta test will resume soon. The patch notes follow.

General

• Rally points now behave as a move command, instead of an attack move command.
• Enabled the ability to manually add a StarCraft II character friend using the player's character code. Character code is a server-assigned numerical code that is displayed within the Add Friend panel.
• Battle.net Achievements & Rewards have been updated.
• All Quick Match modes are now available: 1v1, 2v2, 3v3, 4v4, and Free For All.
• All A.I. difficulties are now available for play.
• Cooperative matchmaking versus A.I. players is now available as a play mode.
• Enabled cross-game social features between World of Warcraft and StarCraft II.

Balance Changes

• ZERG
  
  • Infestor
    
    • Frenzy spell removed.
    • Infested Terran spell added.
      
  • Overseer
    
    • Infested Terran spell removed.
      
  • Ultralisk
    
    • Now immune to stuns and mind control.