Minecraft wiki entry for Development_versions, associated text: Added new advancements
New tabs: "The End" and "Nether"
New levitation trigger, with the following conditions:
duration - number of ticks the player is levitating for
distance - distance the player levitated so far
Both can be either a range (min and / or max) or a value (value)
New feature condition added to the location trigger
The value is a feature name as used in the /locate command