The head of Xbox programming Mike Ybarra revealed on Twitter that at today's 20:00 was released to the members of the program Preview for Xbox One the previously announced update that introduces the indication of rarity of objectives; as you can see in the image below, for each lens shows the percentage of players who play and who have unlocked, and if this percentage is equal to or less than 10% the goal is marked with a diamond to indicate their extreme rarity.

As always, the update will be applied automatically if you have the console on standby, or you can start it manually by your system settings. Happy downloading!