Samsung has officially kicked off the One UI 8.5 beta program, starting exclusively with the flagship Galaxy S25 series in select regions. But the action doesn’t stop there. Behind the scenes, developers are aggressively working on firmware for a wider lineup of devices, hinting that the beta list is about to expand significantly in the coming weeks.
The list of devices confirmed for One UI 8.5 had one glaring omission: the Galaxy M series. That changes right now. In a massive win for mid-range users, development has been officially spotted, confirming that the M series is definitely joining the update party
The first test build has officially surfaced and is now available in select markets.
Exciting news for Samsung users! The Galaxy M54 has been caught testing a new One UI 8.5 build. This confirms that the next major software update is actively in development and will be arriving on Samsung’s affordable M-series lineup very soon.
A recent leak on X reveals that the new test build has already appeared in multiple countries, including the UAE, Malaysia, Saudi Arabia, and Thailand. Since the Galaxy M series is designed specifically for these markets, it rarely sees a release in regions like North America.
Samsung is expected to upload more test builds for this and other Galaxy M Series phones in the coming weeks. However, users should be patient—just because testing has started doesn’t mean the stable One UI 8.5 update will be released to the public immediately.
Realistically, One UI 8.5 probably won’t roll out until the Galaxy S26 series launches around March next year. Even then, Samsung’s flagship models will get priority access first. Users of the Galaxy M series should expect a wait, as these devices typically receive updates later in the schedule.
