We're introducing horses to your Kingdom! In order to access today's update, you will need to be level 22+, have the Jousting arena and have the Goal, "The First Match" completed. The first Goal and Goals associated with the tasks from the first goal are timed and will start today at April 16th at 12 PM DST and will end May 4th 12 PM DST.
EDIT: We have updated the game and the goals "Stallion Selection" and "Equine Education" will now have an expiration date. Please be sure to use your Official Horse Deed to craft your Horse before it expires.