From Guild Wars Wiki
 Update - Thursday, May 17, 2012
 Alliance Battle Updates
- Increased Alliance Battle score multiplier for Imperial faction gain from 4 to 10.
- Decreased win bonus for Alliance Battles from 2000 Imperial faction to 1000 Imperial faction.
- Increased underdog multiplier for Alliance Battles from 100% and 200% to 300% and 500%.
- Increased Imperial faction per kill in Alliance Battles from 30 to 40.
- Increase [sic] Balthazar faction per kill in Alliance Battles from 10 to 20.
 Title Change
 Environment Effect Update
- Stone Spores: causes a 33% reduction in outgoing damage and healing, as well as -2 to all attributes. Additionally, Stone Spores always remain active in applicable PvP areas, instead of toggling on and off.