Earlier this year, Citi announced many changes to their credit cards, including ending Price Rewind, trip cancellation/interruption protection and more. Even Citi’s most premium card, the , was hit with these changes. One of that card’s most unique benefits, the 4th-night-free perk, has been updated as well. Changes to the 4th-night-free perk went into effect... Caroline Lupini is a writer at NerdWallet.