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One UI 9 ends major Android upgrades for Samsung’s 2023 phones
Samsung’s Android 17-based One UI 9 update is the final major operating system upgrade for the Galaxy S23 series, Z Fold 5, Z Flip 5 and several 2023 mid-range phones. Their software support is ending as promised, but security patches are expected to continue for several years.
The S23, S23 FE, Z Fold 5, Z Flip 5, A54, A34 and M54 are all reaching the end of their major Android upgrades; the Galaxy Tab S9 series follows the same schedule. Samsung’s policy offered selected devices four generations of Android and One UI upgrades and five years of security updates, putting patches for these models through 2028. One UI 9 adds interface, DeX, Notes and accessibility changes, though some of its new Galaxy AI features are not supported on the S23 series.
In short
- One UI 9 is the last major upgrade for several 2023 Samsung phones.
- Security patches are expected to continue through 2028.
- Some new One UI 9 AI features will not work on the S23 series.
Explained simply
Samsung sells Galaxy phones and tablets running Android, Google’s mobile operating system. One UI is Samsung’s own software layer, which changes the look and adds features such as DeX, a way to use some devices in a desktop-style layout.
For selected devices released in 2023, Samsung promised four major Android and One UI upgrades, alongside five years of security updates. A major upgrade can add features and change how the system works; security patches address newly discovered risks and can continue after those upgrades end.
The models affected include the Galaxy S23 phones, Z Fold 5, Z Flip 5 and several A- and M-series phones, as well as the Tab S9 tablets. This matters to owners deciding how long to keep a device: it can still receive security fixes for years even when it no longer gets the next major version or its features.
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Originally published by Engadget as “One UI 9 is the final major update for these older Samsung Galaxy phones”.