The Diamondbacks released Curtiss on Friday.
After making 30 appearances out of the Arizona bullpen in 2025, Curtiss was outrighted off the Diamondbacks' 40-man roster in November and ended up re-signing with the organization on a minor-league deal. He failed to win a spot in Arizona's Opening Day bullpen and hadn't made a case for a promotion while pitching at Triple-A Reno, where he posted a 4.02 ERA, 1.32 WHIP and 13:6 K:BB across 15.2 innings over 12 appearances. Now a free agent, the veteran right-hander will look to catch on elsewhere.