The Velvet Shell update also brings with it a slew of changes/fixes to the game, like an improved menu/navigation interface, a "Play" button that will just drop you right back into the last mode you played, and a dynamic challenge display that will pop up and let you know how you're progressing towards completing said challenges. The full patch notes can be found over on the main "Operation Velvet Shell" page on the Rainbow 6 Siege website.