Patch 5.8 is now live on the open beta branch! We are very excited to bring these changes to the community, and we appreciate your continued participation in the open betas! The new discussion/bug reporting thread can be found here. We look forward to hearing your feedback! Thanks and have fun!

Changes in Patch 5.8

• (Elite) Elephant Archers +2 archer armor vs anti-archer attacks (from -2 to 0).
  
• (Elite) Elephant Archers -2 armor vs anti-cavalry archer attacks (from 0 to -2).
  
• Eagle Scout training time in Castle Age +3s (from 32s to 35s), same as Eagle Warrior.
  
• Incan free llama bonus is no longer tied to the scout; requires Town Center on nomad-style maps.
  
• Vietnamese reveal enemy bonus no longer works in full tech tree games.
  
• Malay infinite fish trap bonus no longer works in full tech tree games.
  
• Khmer no building requirement bonus no longer works in full tech tree games.
  
• Teuton team bonus no longer overrides Faith technology in post-imperial age start games.
  
• Fixed the issue with siege workshops not receiving extra HP and armor in Imperial Age.
  
• Fixed the issue causing the attack sound of Galleons to not play.
  
• Fixed the issue with buildings placed on Desert, Cracked terrain not receiving a bonus damage when being attacked.
  
• Hunting dogs effect no longer appears in games with starting ages later than Dark.
  
• Villagers and towers do a reduced bonus damage vs walls before castle age.
  
• Watch Towers, Guard Towers and Keeps cost +25w.
  
• Siege Tower collision size changed from 0.50 to 0.45.
  
• Coinage moved up to Castle Age, Banking moved up to Imperial age.
  
• Couriers cost +200f +400g (from 400f 200g to 600f 600g).
  
• Italian fishing ship cost bonus reduced to 15% (from 20%).
  
• Khmer receive Arbalest upgrade.
  
• Mayan farmers work at closer speed to the farmers of other civilizations.
  
• (Elite) Arambai cost changed to 80 wood 60 gold (from 55w 60g).
  
• (Elite) Karambit Warrior cost changed to 30f 15g (from 25f 10g).
  
• Vietnamese archer HP bonus changed to immediate +20% HP to foot archers. (instead of the staggered effect).
  
• (Elite) Rattan Archers +5 HP.
  
• Korean faster building fortifications bonus is reduced for Towers(similar to how the Spanish building bonus is reduced for Wonders)
  
• Mamelukes receive 5 less damage from Halberdiers.

Here's how to join the beta:

• Right-click on Age of Empires II HD in your Steam Library and seelct "Properties".
  
• Navigate to "Betas".
  
• In the dropdown menu, select "open-beta" and then click "Close".
  
• Wait for the game to update, then play!

To return to the main branch, follow the above steps and select "None" in step 3.

Thanks, and GLHF!