August
Nothing too important happened in August.
Day 22
Skill pets. Rare chance of obtaining while training any of the non-combat skills. No, Slayer is not a combat skill. Yes that means there is a Slayer pet.
Day 15
Summer seasonal event, nothing important. Tons of XP and XP-boosting rewards.
Day 8
Wilderness Task set. A "Luck Potion" that acts like a Ring of Wealth released. An "aggression" potion that makes monsters aggressive. Some buffs and additions for skilling in the Wilderness.
Day 1
Patch week. Rebalancing for The Arc activities.