A new Tips setting in the Staff panel: keep tips for the restaurant (as before), give them to the server who served the table, or share them between the whole staff.
Staff now have morale (shown as a heart number). Tips they receive lift it, and it slowly settles back. Happier staff work a little faster.
Giving tips away costs you about $70 a day on a normal day, in exchange for happier staff.
No screenshot: the change is a small setting and a number beside each name.
CHEF!