It's the one you've been waiting for, the Apple Jubilee has arrived with copious amounts of Farming and Invention XP!
00:00 game time on the 8th November to 23:59 on the 13th November, modified apples can be won on Treasure Hunter, and hoppers have been spread across the world.
Near to every lodestone, find a hopper and drop your modified apples in for Invention or Farming XP. Additionally, any spare Protean Cogs you have can also be used in the hoppers for a boosted +50% XP!
May the modified apples get you exactly the levels you need - good luck!