Users have to find and download the patches if your devices can be upgraded. Some cannot be. If I were you, I'd be looking right now. Perhaps your carrier has it up now, or the Google Play Store will have a patch for your device.
My device is currently on 6.0.1, but the last update pushed by AT&T was for the April 1, 2017 update. Between them and Samsung, I am not sure who to nag about this issue (this is my first smartphone purchased last month). If I could batch my smartphone by bypassing AT&T, I would attempt it (assuming it wouldn’t brick my device).