At the upper end of the gallery league, artists’ comings and goings can feel like football’s transfer season – see Carol Bove’s departure from Zwirner for Gagosian in the autumn. Less business-as-usual was Gerhard Richter’s exit from Marian Goodman for Zwirner’s eight-gallery empire. One of the most highly valued living artists, the ninety-one-year-old German declared that the paintings shown in March at one of Zwirner’s two Chelsea spaces would be his last. While Zwirner backed out of a long-planned new gallery space in Chelsea this year, citing the developer’s financial difficulties, he’s come up with a smaller alternative next to his other Chelsea space. It’s not all about dollars; other artists who joined are less safe bets than Richter, not least dancer Sarah Michelson, who will stage a show next year at Zwirner’s upgraded LA outpost. Rirkrit Tiravanija was supposed to debut with the gallery in its Hong Kong space last year, but the pandemic delayed the opening of The Shop to 2023, for which the white cube was turned into an umbrella emporium (though it was only the whole installation, not individual brollies, that could be bought).