Samsung Galaxy Tab S3 is currently been updated with June 2017 security patch, The update is rolling out as build T820XXU1AQF3, and it weighs in at about 300MB. The update does fix the 96 vulnerabilities that Google found in the Android operating system, as well as an additional 23 that Samsung found in its own software that goes on top of Android.
The update is currently rolling out across Europe, so it shouldn’t be too long before it begins to make its way into the US and other regions around the world. The update is rolling out over the air right now and should be available to everyone with the Galaxy Tab S3 in Europe in few days. You can head to Settings, tap on About Tablet, then Check for Updates and you should be able to pull down the update. Note that you’ll want to be on a stable WiFi connection before downloading and your tablet will need at least 50% battery before attempting to install the update. So that the tablet doesn’t die during the installation