What you need to know • Samsung is rolling out One UI 8 for the Galaxy S21 FE in Thailand and Vietnam. • The update will likely be the Galaxy S21 FE's last major Android OS upgrade, as its four-year update guarantee is coming to an end. • The Samsung Galaxy S21 FE still has more than a year of monthly security patches left.

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Following its debut alongside the Galaxy Z Fold 7 and Flip 7 over the summer, Samsung has steadily brought One UI 8 to more devices. The operating system, based on Android 16, builds off the One UI 7 overhaul while adding new features and doubling down on Galaxy AI

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