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Samsung has reportedly postponed the global rollout of One UI 9, its Android 17-based update for Galaxy devices. Android Central reported on September 22, 2026, that the expected September 21 release did not begin as planned, while Samsung's Thailand website replaced a subsequent September 28 date with the less specific window of September 2026.
The Timeline Changed Twice
According to the report, Samsung announced One UI 9 on September 16 and began distributing it in South Korea that day. A wider rollout was expected to start on September 21, but that date passed without the anticipated global release. Samsung's US newsroom announcement did not provide a specific global date.
Samsung Thailand then changed its published schedule from September 21 to September 28 before removing that date as well. Its current wording indicates that selected devices in Thailand should receive the update sometime during September 2026, leaving the exact day unresolved rather than confirming a September 28 launch.
Which Galaxy Devices Come First
The revised Thailand schedule identifies the Galaxy S26 series, Galaxy S25 series and Galaxy Z7 series as the first device groups due to receive One UI 9 in the country. It places the Galaxy S23 FE later in 2026. The source does not provide a complete rollout schedule for other models, markets or carriers.
For Galaxy owners outside South Korea, the practical change is continued uncertainty over when the update will arrive. The remaining official window cited by the report covers September, but it does not establish whether distribution will begin simultaneously across regions or proceed in stages.
Five Months in Testing
One UI 9 testing began with the Galaxy S26 series in May and expanded across Germany, India, South Korea, Poland, the UK and the US. Early beta releases included changes involving the Contacts app and Samsung Notes, according to Android Central.
Despite that testing period, the report does not identify a technical reason for the missed rollout date. It also does not confirm an October delay. Until Samsung supplies a precise replacement schedule, September remains the stated window for the initial Thailand availability described in the updated notice.
Source: Oh no, not again: it looks like Samsung delayed its One UI 9 global release
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