The latest update comes with August 5, 2017 Security patch and Android version 8.0.0. One of the user who got the update claimed that he bought the device directly with Android O Pre-Installed. We're still not sure, if this is the Dev Preview 4 or Google accidentally updated a few devices.
If it's really Dev Preview 4, you will be getting the update soon on selected Android Smartphones including Nexus 5X, Nexus 6P, Nexus Player, Pixel C, Pixel, and Pixel XL.
We'll update this Article, once we get more information on this. The below are the screenshots of Android 8.0.0 with August 5, 2017 Security patch. Got the update? Let us know in the below comment section.
Thanks Mardo Cordero