Samsung makes progress on One UI 8.5 for Galaxy S23, Z Flip 6, and Z Fold 6 - SamMobile

Samsung is accelerating One UI 8.5 development beyond the Galaxy S25 series. New test builds on Samsung's servers confirm progress for the Galaxy S23 Ultra, Galaxy Z Flip 6, and Galaxy Z Fold 6.

Evidence on Samsung's firmware servers shows version S918BXXU8FYLB for the Galaxy S23 Ultra, where the FYLB suffix indicates One UI 8.5. Similar builds ending in DYLB have appeared for the Galaxy Z Flip 6 and Galaxy Z Fold 6, signaling that internal testing is underway for these flagships.

Rollout timeline: Samsung is expected to release the second One UI 8.5 beta for the Galaxy S25 within the next four weeks. After roughly four to five betas, the stable update could arrive around the Galaxy S26 launch window in February or March 2026.

One UI 8.5 (based on Android 16) highlights:

• Fully customizable Quick Panel
• Refreshed design across stock Samsung apps
• Auracast enhancements
• Improved lock screen clock widget with expanded font options
• Continuous image generation
• Storage Share
• Quick Share suggestions when sharing images
• Time zone converter in the Clock app

For a deeper look at everything new in One UI 8.5, check out SamMobile's in-depth video overview.

Source: https://www.sammobile.com/news/one-ui-8-5-galaxy-s23-z-flip-fold-6-test-progress/