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4w ago

Samsung Widens One UI 9 Beta as Stable S26 Builds Appear

The company’s expansion of Android 17 testing to 2025 flagships signals a move from broad beta cycles to imminent stable releases and highlights uneven regional rollout and hardware limits on advanced AI features.

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Overview

  • Samsung announced on Sept. 1 that the One UI 9 beta is expanding to the Galaxy S25 family and the Z Fold7 and Z Flip7, and users can opt in through the Samsung Members app in select markets.
  • The first One UI 9 beta builds for the Galaxy S25 series are live in initial regions including the U.K., India, South Korea and the U.S., with downloads delivered through the beta program banner in Samsung Members.
  • Observers have spotted stable One UI 9 firmware for the Galaxy S26 series, a signal that Samsung is finalizing the S26 stable release after months of beta testing.
  • Samsung pushed a One UI 9 beta hotfix (firmware S948NKSU4ZZHM) to the Galaxy S26 Ultra in South Korea to improve stability while the broader stable rollout is prepared.
  • The August 2026 security update, which began rolling in South Korea and fixes 56 vulnerabilities from Google and Samsung, reached flagships later than usual and remains staged by region, and advanced AI features like Gemini Intelligence are being limited to phones with higher RAM (about 12GB) so some newer midrange devices will miss agentic capabilities.