11th Anniversary

Anniversary Party
 * The challenge introduced in 10th Anniversary returns with some minor changes
 * Feb 23 - Mar 5, 2017
 * New rewards:, some new cookies

Anniversary giveaway
 * Use coupon code HAPPY11TH, valid Feb 23 - April 2, 2017; two per account
 * Use coupon code HAPPY11TH, valid Feb 23 - April 2, 2017; two per account