Samsung One UI 8 Update Rolling Out for Galaxy Z Fold 4, Z Flip 4, M36, and F36: Here’s What’s New

Samsung One UI 8 update has officially started rolling out for the Galaxy Z Fold 4, Z Flip 4, Galaxy M36, and Galaxy F36, bringing Android 16 and a refreshed user experience. This long-awaited update marks a major milestone for Samsung users, especially those using the company’s 4th Gen foldables. According to reports from SamMobile and several user posts on Samsung’s community forums, the update is already live in select regions across Asia, Africa, and Europe.

For the Galaxy Z Fold 4 and Galaxy Z Flip 4, the software versions are F936BXXUAIYIF and F721BXXUAIYIF, respectively. These builds come bundled with the October 2025 security patch, ensuring the devices are protected with the latest security improvements. The update size is approximately 3 GB, so users are advised to use a Wi-Fi connection for a smoother installation. To download it, head to Settings → Software Update → Download and Install.

Meanwhile, the Galaxy M36 and Galaxy F36 have also begun receiving their One UI 8 update with build numbers E366BXXU2BYI4 and F936BXXUAIYIF, though these models feature the September security patch. Despite this, users are still gaining access to the complete Android 16 experience with all of Samsung’s latest software features.

The One UI 8 update brings several notable enhancements, including a redesigned Samsung Internet browser, smoother multitasking capabilities, and an upgraded Samsung DeX for improved productivity on external displays. Additionally, the Reminders and Calendar apps have received major interface improvements, making task management and scheduling more intuitive. Samsung has also refined its Health app, introduced new accessibility options, and optimized animations for a more fluid and responsive interface.

For those who enjoy customization, One UI 8 also delivers new wallpaper effects, enhanced lock screen widgets, and improved integration with Galaxy AI features. Overall, this update makes the experience on Samsung’s foldables and mid-range phones feel faster, smarter, and more cohesive.

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If you haven’t received the update yet, don’t worry—it’s rolling out in phases and should reach all eligible users soon.