Overview

• Samsung began releasing the Android 16–based software on September 15 for the Galaxy S25 series, with initial distribution observed in South Korea and a 555 MB build (S93xNKSU5BYI3) reported for the S25 Ultra.
• The Galaxy S25 Edge is included in day‑one availability in Korea, receiving firmware S937NKSU2BYI3 with a 3.44 GB download.
• This cycle focuses on refinements, adding features like Now Bar and Now Brief, a redesigned Samsung Internet, improved Quick Share and DeX, and updates to Calendar, Clock, and Reminders.
• Security and AI additions include Knox Enhanced Encrypted Protection (KEEP), Knox Matrix auto sign‑out, an upgraded Secure Wi‑Fi framework, and Google integrations such as Gemini Live and enhanced Circle to Search.
• Samsung posted a rollout timeline indicating most eligible phones and tablets get the update in October and the remainder in November, with an official eligibility list confirming broad coverage across S, Z, A, FE, and Tab lines.