Samsung begins stable One UI 8.5 rollout for Galaxy S25 users in US

▼ Summary
– Samsung has started rolling out the stable One UI 8.5 update to the Galaxy S25 series in the US.
– The update is 4408.31 MB in size and includes the April security patch.
– It adds features to the Galaxy S25 series that were previously exclusive to the Galaxy S26 lineup.
– The first phase of the One UI 8.5 rollout also includes models like the Galaxy S24 series, Z Fold 6, and Tab S10.
– The update is expected to reach other older Galaxy phones in the US soon, possibly starting today.
Samsung has officially launched the stable One UI 8.5 update for Galaxy S25 users across the United States, bringing a suite of previously exclusive Galaxy S26 features to the current flagship series. The rollout follows last week’s debut in South Korea and aligns with expectations for a US release this week.
Tipster CID on X confirmed the update’s availability, noting the version numbers S938USQU9CZDP/S938UOYN9CZDP. The 4408.31 MB package includes the April security patch and introduces several enhancements that were initially reserved for the Galaxy S26 lineup. This marks a significant expansion of Samsung’s software ecosystem, as older Galaxy models are also expected to receive the update soon, possibly starting today.
The company’s official first-phase rollout list includes a broad range of devices: the Galaxy S25 series (including the FE variant), the Galaxy S24 series, the Galaxy Z Fold 7 and Flip 7, the Galaxy Z Fold 6 and Flip 6, and the Galaxy Tab S11 and Tab S10 lines. This aggressive rollout strategy suggests Samsung is prioritizing feature parity across its premium hardware.
Based on prior leaks, the One UI 8.5 changelog for the Galaxy S25 series emphasizes improved customization, enhanced camera algorithms, and refined multitasking capabilities. The update also integrates deeper AI-driven tools for productivity and media editing, building on the foundation laid by earlier One UI versions. Users can expect smoother animations and better battery optimization as part of the overall performance tuning.
(Source: Android Authority)