Dubin was released by the Diamondbacks on Thursday, Aaron Hughes of SI.com reports.
Dubin made two appearances with Triple-A Reno, surrendering four runs on five hits and a walk while striking out two batters over two innings. The 30-year-old produced a 5.08 ERA and 1.43 WHIP with 28 punchouts over 33.2 innings with the Astros and Orioles in 2025.