Galaxy S25 AI features arrive with One UI 8.5

What the June One UI 8.5 update changes for Galaxy flagships

The June One UI 8.5 update for recent Galaxy flagships is a software release that delivers long-promised Galaxy S26 features, including smarter notification handling and automatic file summaries, to older models such as the Galaxy S25 and other eligible devices while also bundling the latest Android security patch level for improved device protection. For Galaxy S25 owners, the download appears as an unusually large security update, because it is doing more than basic maintenance: it upgrades Galaxy AI. The firmware, identified for the S25 as build S938NKSUACZF1, rolls out together with the June 2026 Android security patch and completes the original One UI 8.5 feature list that first shipped on the S26 lineup. According to Android Authority, the June release also continues a broader One UI 8.5 rollout that now spans more than 44 confirmed Galaxy phones and tablets, including some budget models.

Galaxy S25 AI features: Priority Notifications and smarter alerts

One of the most requested Galaxy S26 features now arriving via the June update is Priority Notifications Samsung users have been waiting for. This Galaxy AI tool uses on‑device intelligence to decide which alerts matter most, pushing calls, messages, and time‑sensitive apps to the top of the notification shade while lowering the priority of routine pings. The update also enables Summarise Notifications on the Galaxy S25 series, which compresses long notification threads into a short, readable summary so you can understand what changed without opening every app. Android Authority notes that these capabilities were missing from the first One UI 8.5 release for S25 even though they were available on S26 at launch, but Samsung signaled they would arrive in a later build. Their arrival means Galaxy S25 AI features now match more closely with the S26 experience around alerts and productivity.

Files Summaries: Galaxy AI for PDFs and documents

The other major addition in the June One UI 8.5 update is Files Summaries Galaxy users saw debut on the S26 series. This feature scans PDF and TXT documents stored locally and generates concise, AI-powered overviews so you can quickly decide whether a file is worth reading in full. X user kwj9809 highlighted that File Summaries is now live on the Galaxy S25 after the update, and Technobezz reports that the tool runs on-device rather than sending files to the cloud. That design choice helps with speed and privacy while keeping the feature practical for offline use. Together with notification summaries, File Summaries continues Samsung’s effort to focus Galaxy AI on everyday utility instead of one-off demos, helping owners of last year’s flagships get more value from existing storage and productivity apps without a hardware upgrade.

Why Samsung delayed these Galaxy S26 features for S25 and Fold owners

Although One UI 8.5 launched on the Galaxy S25 series with several Galaxy S26 features in place, Priority Notifications and File Summaries were absent at first. Technobezz notes that Samsung held them back and hinted that a separate release would deliver them later, which the June update now fulfills. Staggering features in this way fits a pattern: Samsung finished its wide One UI 8.5 rollout only recently, in parallel with building One UI 9 for the Galaxy S26 and upcoming foldables. By tying the missing AI tools to a large security patch, Samsung can test and refine them on the newest S26 hardware before pushing them down to older flagships and select mid‑range and budget phones. This strategy reduces risk while still moving toward software parity across generations rather than locking Galaxy S26 features permanently to the latest models.

What this means for One UI 8.5, One UI 9, and older devices

The June One UI 8.5 update landing on the Galaxy S25 shows how Samsung plans to keep older flagships aligned with Galaxy S26 features while One UI 9 development accelerates. Technobezz reports that internal firmware points to the Galaxy S25 series as “next in line for the One UI 9 beta” after the S26 lineup, which already received multiple beta builds. Meanwhile, Android Authority confirms that more than 44 Galaxy devices now run One UI 8.5, and some budget models are also picking up Galaxy AI capabilities. For owners of devices like the Galaxy Z Fold 7, the pattern is clear: key AI perks such as Priority Notifications Samsung debuted on the S26 will not remain exclusive forever. Instead, they are likely to arrive with security patches or minor point updates, narrowing the experience gap between generations without forcing constant hardware upgrades.