The Galaxy Tab S5e that was sold in the USA by AT&T is finally getting Android 10. The firmware update was originally released for the Galaxy Tab S5e in June and availability continued to expand to dozens of markets in subsequent weeks. US carriers are usually updating their devices later than the rest, and AT&T began rolling out Android 10 for the Galaxy Tab S5e this week. As they say, it's better late than never.
The latest firmware update for AT&T's Galaxy Tab S5e is identified by firmware version T727AUCU1BTH2. The package weighs around 2GB and it introduces Android 10, One UI 2.5, as well as the August 2020 security patch. The September security patch has been out for a couple of weeks now, and this suggests that the Android 10 update for AT&T's Galaxy Tab S5e was being prepared for release way ahead of the launch of the latest security patch. In fact, the unlocked Galaxy Tab S5e sold outside of the USA has already received the September 2020 security update this week.
As for Android 10 in the USA, AT&T's official changelog doesn't mention anything else aside from the security patch level, but don't be fooled by this lack of information from the carrier. The One UI 2.5 update is significant and brings features like Music Share, Quick Share, Google's fullscreen UI navigation gestures, reworked UI elements, more emojis, an improved camera app layout, smoother animations and transitions, improved Dark Mode and more.
If you own AT&T's Galaxy Tab S5e, you should be able to download the update once the notification arrives on your tablet. If you don't like waiting, you can try to trigger the update by opening Settings on your tablet, accessing Software update and tapping Download and install.