Sip away the last days of summer with rosé in hand at Catalyst on Friday, September 21st. Join them on their lounge-like patio — which was upgraded back in May — for wines by the glass, a collection of rosé cocktails and poppable bar bites from chefs William Kovel and Justin Urso (and crew). It’ll be one of the last times to enjoy the season’s favorite pink sipper before the fall calls for heartier reds like Merlot and Malbec. No tickets are required; just swing by the Technology Square space at 5:00pm or later to bid the summer adieu.