Samsung accelerates One UI 9.x testing: 9.5 on Galaxy S26 and 9.0 beta widening for S25
Samsung reportedly kicked off One UI 9.5 development for the Galaxy S26 series (build CZH1), signaling a faster mid‑cycle upgrade with rumored features like App Lock and true dark‑themed icons. At the same time, One UI 9.0 beta testing for the Galaxy S25 lineup is expanding, with beta banners in the Samsung Members app and potential rollout to S25/S25+/S25 Ultra (and possibly Galaxy Z Fold 7/Z Flip 7). There are also hints that One UI 9.5 could debut on the Galaxy S27 series early next year.