Samsung Galaxy S25 Series Gains Galaxy AI Features from the S26 in June Security Update

Samsung shipped the stable One UI 8.5 update to the Galaxy S25 series last month, but anyone hoping for the full Galaxy AI suite came away disappointed. That build left out several AI features that had first appeared on the newer Galaxy S26 lineup. With the June 2026 Android security update, Samsung has closed that gap and pushed those tools down to last year's flagships.

The update adds three Galaxy AI capabilities: Prioritize Notifications, Summarize Notifications (also called Notification Highlights), and File Summaries. None of them are headline-grabbing on their own, but together they fill out the on-device AI experience that increasingly defines the difference between Samsung's generations.

What the three features actually do

Prioritize Notifications reorders your incoming alerts so the ones Galaxy AI judges to be important surface first. It makes that call based on the content of each notification combined with information it already holds about you, the idea being that a message from a close contact or a time-sensitive alert won't get buried under app noise. It's a small behavioral change, but for anyone who gets hammered with notifications throughout the day, surfacing the signal over the noise is the kind of thing you notice once and then rely on.

Summarize Notifications does what the name promises. Long notifications, think multi-line messages or stacked alerts, get condensed into a short summary so you can read the gist at a glance instead of expanding each one. It's the same summarization pattern Samsung has been applying across One UI, now extended to the notification shade.

File Summaries is the most substantial of the three. It generates AI summaries of PDF and TXT files, and it also handles recordings made in the Voice Recorder app. For students, anyone dealing with long documents, or people who record meetings and lectures, getting a quick AI-generated recap without opening a separate app is a genuine time saver. This feature in particular leans on the kind of on-device language processing that Samsung has been building out across the Galaxy line.

Firmware details and rollout

The June 2026 Android security update carries firmware version S93xNKSUACZF1 and weighs in at roughly 900MB, so it's a meaningful download rather than a minor patch. That size is consistent with an update bundling new features alongside the monthly security fixes.

For now the rollout is limited to South Korea, which is typical for Samsung. The company almost always seeds major updates in its home market first before widening distribution to Europe, the US, and the rest of the world over the following weeks. If you're in South Korea on a Galaxy S25 device and the update hasn't arrived automatically, you can pull it manually through Settings > Software update. Everyone else will need to wait for the staged rollout to reach their region.

The bigger pattern here

What's interesting about this release isn't the individual features, it's how Samsung delivered them. The stable One UI 8.5 build and the Galaxy AI additions arrived separately, with the AI tools coming through a monthly security update weeks after the OS update itself. That decoupling has become Samsung's preferred approach. Rather than gating every AI improvement behind a full One UI version bump, the company can drip-feed capabilities to older hardware on its own schedule.

That's good news for Galaxy S25 owners, who get to keep collecting features that originated on the S26 without buying new hardware. It also reflects a broader reality across the Android side of the market, where AI features are increasingly the differentiator between phone generations, and where manufacturers backport them selectively to manage that gap. Samsung's own roadmap underscores the pace of all this: the company has already begun testing One UI 9 for the Galaxy S25 series and several other devices, so the S25 is far from done receiving meaningful updates.

For anyone weighing the Galaxy ecosystem, this is the kind of post-purchase support that matters. A flagship that keeps absorbing newer AI features a year after launch holds its value and its appeal longer, and it reinforces the lock-in that comes with Samsung's increasingly AI-centric software. The catch, as always, is patience. The features are real and rolling out, just not to everyone at once.