Overview
- Samsung released stable One UI 8 (Android 16) for India’s Galaxy M55 and M55s with builds M556BXXU4CYJ4 and M558BXXU2CYJ4, including the October 2025 security patch.
- India’s Galaxy F15 5G is receiving One UI 8 via firmware E156BXXU7CYJ5 at roughly 2.3GB, which also carries the October 2025 security patch.
- The Galaxy A15 5G update reached Canada and the USA as a 2.2GB download with the September 2025 patch, with firmware A156WVLU7DYIB (Canada) and A156USQU7DYIB (U.S. carrier‑locked).
- Cellular Galaxy Tab S9 models in the USA began getting One UI 8 with firmware versions ending DYJ1 (X718U/X818U/X918U), marking a roughly 3.2GB release.
- Following a temporary pause, Samsung resumed One UI 8 for the Galaxy S23 and S24 in South Korea, while multiple outlets—citing tipster Tarun Vats—report the unconfirmed One UI 8.5 beta timeline has likely slipped due to Galaxy S26 lineup changes.