Overview

• The stable Android 16-based update expanded from South Korea to India, Germany and the UK before reaching the US on September 18.
• Initial availability prioritized beta participants, with builds like S93xBXXU5BYI3 around 565MB, while full US packages such as S93xUSQU5BYI3 are roughly 3.81GB.
• Samsung’s Korea and Brazil community posts outline phased windows for S24, S23, S22, Z Fold/Flip 6–4, A-series models, and Tab S10–S8 through October and November.
• Feature additions center on multimodal AI and security, including Gemini Live, Circle to Search enhancements, Now Bar, Now Brief, Knox Enhanced Encrypted Protection, Knox Matrix, and improved Secure Wi‑Fi.
• Early One UI 8.5 firmware for the Galaxy S25 series appeared on Samsung servers, indicating development of an incremental follow-up rather than an imminent public release.